UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF

REGISTERED MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-4492

MFS SERIES TRUST X

(Exact name of registrant as specified in charter)

111 Huntington Avenue, Boston, Massachusetts 02199

(Address of principal executive offices) (Zip code)

Susan S. Newton

Massachusetts Financial Services Company

111 Huntington Avenue

Boston, Massachusetts 02199

(Name and address of agents for service)

Registrant’s telephone number, including area code: (617) 954-5000

Date of fiscal year end: July 31*

Date of reporting period: October 31, 2012*

 

* This Form N-Q pertains to the following series of the Registrant: MFS Emerging Markets Debt Fund and MFS Emerging Markets Debt Local Currency Fund. The remaining series of the Registrant (MFS Absolute Return Fund, MFS Aggressive Growth Allocation Fund, MFS Conservative Allocation Fund, MFS Emerging Markets Equity Fund, MFS Global Bond Fund, MFS Growth Allocation Fund, MFS International Diversification Fund, MFS International Growth Fund, MFS International Value Fund and MFS Moderate Allocation Fund) have fiscal year ends of May 31.


ITEM 1. SCHEDULE OF INVESTMENTS.


QUARTERLY REPORT

October 31, 2012

 

LOGO

 

MFS® EMERGING MARKETS DEBT FUND

 

LOGO


PORTFOLIO OF INVESTMENTS

10/31/12 (unaudited)

The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes.

 

Issuer    Shares/Par     Value ($)  
Bonds - 91.8%                 
Angola - 0.3%                 
Northern Lights III B.V., 7%, 2019    $ 17,215,000      $ 19,237,762   
Argentina - 2.6%                 
Republic of Argentina, 7%, 2015    $ 72,141,000      $ 59,599,042   
Republic of Argentina, 2.5% to 2019, 3.75% to 2029, 5.25% to 2038      130,037,000        42,262,025   
Republic of Argentina, 7%, 2017      8,660,164        6,532,150   
Republic of Argentina, 8.75%, 2017      9,855,000        8,376,750   
Republic of Argentina, FRN, 8.28%, 2033      72,128,781        46,883,708   
    

 

 

 
             $ 163,653,675   
Brazil - 7.1%                 
Banco do Brasil S.A., 3.875%, 2022    $ 11,989,000      $ 11,953,033   
Banco do Brasil S.A., 5.875%, 2023      1,900,000        2,099,500   
Banco do Brasil S.A., 5.875%, 2023 (n)      15,215,000        16,812,575   
Banco do Estado Rio Grande do Sul S.A., 7.375%, 2022 (n)      28,846,000        32,740,210   
Banco do Nordeste do Brasil (BNB), 3.625%, 2015 (n)      15,993,000        16,552,755   
Banco do Nordeste do Brasil (BNB), 4.375%, 2019 (n)      14,567,000        15,113,262   
BRF - Brasil Foods S.A., 5.875%, 2022 (n)      5,437,000        6,116,625   
Caixa Economica Federal, 3.5%, 2022 (z)      14,324,000        14,325,862   
Cosan Ltd., 7%, 2017      12,023,000        13,916,623   
Federative Republic of Brazil, 8.25%, 2034      18,143,000        29,754,520   
Federative Republic of Brazil, 5.625%, 2041      16,109,000        20,619,520   
Globo Comunicacoes e Participacoes S.A., 6.25% to 2015, 9.375% to 2049      15,039,000        16,242,120   
Globo Comunicacoes e Participacoes S.A., 4.875%, 2022 (n)      4,895,000        5,372,263   
Globo Comunicacoes e Participacoes S.A., 6.25% to 2015, 9.375% to 2049 (n)      6,247,000        6,746,760   
Minerva Luxembourg S.A., 12.25%, 2022      1,950,000        2,320,500   
Minerva Luxembourg S.A., 12.25%, 2022 (n)      11,266,000        13,406,540   
Odebrecht Finance Ltd., 6%, 2023 (n)      10,633,000        12,307,698   
Odebrecht Finance Ltd., 6%, 2023      912,000        1,055,640   
Odebrecht Finance Ltd., 5.125%, 2022 (n)      7,998,000        8,697,825   
Odebrecht Finance Ltd., 7.125%, 2042 (n)      22,283,000        25,792,572   
OGX Austria GmbH, 8.375%, 2022 (n)      6,441,000        5,410,440   
OGX Petroleo e Gas Participacoes S.A., 8.5%, 2018 (n)      6,510,000        5,679,975   
Oi S.A., 5.75%, 2022 (n)      1,937,000        2,091,960   
Oi S.A., 5.75%, 2022      1,118,000        1,207,440   
Petrobras International Finance Co., 6.75%, 2041      30,904,000        39,514,380   
Petrobras International Finance Co., 5.375%, 2021      43,352,000        49,163,596   
Petrobras International Finance Co., 7.875%, 2019      23,759,000        30,079,607   
Rearden G Holdings Eins GmbH, 7.875%, 2020      8,269,000        9,147,581   
Vale Overseas Ltd., 4.375%, 2022      15,369,000        16,359,532   
Virgolino de Oliveira Finance Ltd., 10.5%, 2018      3,986,000        3,886,350   
Virgolino de Oliveira Finance Ltd., 11.75%, 2022      4,326,000        4,217,850   
    

 

 

 
             $ 438,705,114   
Canada - 0.4%                 
First Quantum Minerals Ltd., 7.25%, 2019 (z)    $ 13,376,000      $ 13,643,520   
IAMGOLD Corp., 6.75%, 2020 (n)      11,223,000        11,194,943   
    

 

 

 
             $ 24,838,463   
Chile - 1.2%                 
Automotores Gildemeister S.A., 8.25%, 2021 (n)    $ 8,013,000      $ 8,654,040   
Automotores Gildemeister S.A., 8.25%, 2021      5,031,000        5,433,480   

 

1


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
Bonds - continued                 
Chile - continued                 
Banco de Credito e Inversiones, 3%, 2017 (n)    $ 9,988,000      $ 10,139,248   
Corporacion Nacional del Cobre de Chile, 3.75%, 2020 (n)      5,708,000        6,185,223   
Corporacion Nacional del Cobre de Chile, 3.75%, 2020      800,000        866,885   
Corporacion Nacional del Cobre de Chile, 4.25%, 2042 (n)      4,625,000        4,700,119   
Corporacion Nacional del Cobre de Chile, 6.15%, 2036      3,532,000        4,608,430   
Empresa Nacional del Petroleo, 5.25%, 2020 (n)      2,649,000        2,964,308   
Empresa Nacional del Petroleo, 6.25%, 2019      6,992,000        8,133,668   
Empresa Nacional del Petroleo, 4.75%, 2021      1,000,000        1,093,611   
Empresa Nacional del Petroleo, 4.75%, 2021 (n)      6,814,000        7,451,865   
Sociedad Quimica y Minera de Chile S.A., 5.5%, 2020 (n)      9,697,000        10,868,747   
Sociedad Quimica y Minera de Chile S.A., 5.5%, 2020      2,814,000        3,154,033   
    

 

 

 
             $ 74,253,657   
China - 2.3%                 
CNOOC Finance (2012) Ltd., 3.875%, 2022 (n)    $ 37,597,000      $ 40,364,290   
CNOOC Finance (2012) Ltd., 5%, 2042 (n)      12,336,000        14,309,760   
CNPC General Capital Ltd., 3.95%, 2022 (n)      17,247,000        18,681,623   
Hyva Global B.V., 8.625%, 2016 (n)      7,035,000        6,560,138   
Hyva Global B.V., 8.625%, 2016      7,545,000        7,035,713   
Sinopec Group Overseas Development (2012) Ltd., 3.9%, 2022 (n)      18,805,000        20,384,169   
Sinopec Group Overseas Development (2012) Ltd., 4.875%, 2042 (n)      13,891,000        15,949,063   
Tencent Holdings Ltd., 3.375%, 2018 (n)      17,271,000        17,617,474   
    

 

 

 
             $ 140,902,230   
Colombia - 2.3%                 
Bancolombia S.A., 5.125%, 2022    $ 15,093,000      $ 15,772,185   
Bancolombia S.A., 5.95%, 2021      3,545,000        4,094,475   
Ecopetrol S.A., 7.625%, 2019      22,446,000        29,067,570   
Empresa de Energia de Bogota S.A., 6.125%, 2021 (n)      4,696,000        5,306,480   
Grupo Aval Ltd., 5.25%, 2017 (n)      5,240,000        5,593,700   
Grupo Aval Ltd., 4.75%, 2022 (n)      14,781,000        14,781,000   
Pacific Rubiales Energy Corp., 7.25%, 2021 (n)      25,260,000        29,933,100   
Republic of Colombia, 8.125%, 2024      6,275,000        9,396,812   
Republic of Colombia, 4.375%, 2021      1,936,000        2,223,496   
Republic of Colombia, 6.125%, 2041      15,441,000        21,076,965   
Republic of Colombia, 7.375%, 2037      4,014,000        6,191,595   
    

 

 

 
             $ 143,437,378   
Cote d’Ivoire - 0.5%                 
Ivory Coast, 3.75%, 2032 (a)    $ 32,183,000      $ 28,964,700   
Croatia - 1.5%                 
Agrokor d.d., 8.875%, 2020 (n)    $ 5,891,000      $ 6,097,185   
Republic of Croatia, 6.625%, 2020      11,741,000        13,427,829   
Republic of Croatia, 6.25%, 2017 (n)      13,950,000        15,331,050   
Republic of Croatia, 6.75%, 2019      4,505,000        5,169,487   
Republic of Croatia, 6.375%, 2021      46,933,000        53,194,801   
    

 

 

 
             $ 93,220,352   
Dominican Republic - 0.5%                 
Dominican Republic, 7.5%, 2021 (n)    $ 9,697,000      $ 11,393,975   
Dominican Republic, 8.625%, 2027      13,706,000        16,447,200   
Dominican Republic, 7.5%, 2021      3,019,000        3,547,325   
    

 

 

 
             $ 31,388,500   

 

2


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
Bonds - continued                 
El Salvador - 0.2%                 
Republic of El Salvador, 7.375%, 2019    $ 500,000      $ 587,500   
Republic of El Salvador, 7.375%, 2019 (n)      3,416,000        4,013,800   
Republic of El Salvador, 7.75%, 2023      6,263,000        7,484,285   
    

 

 

 
             $ 12,085,585   
Georgia - 0.2%                 
JSC Georgian Railway, 7.75%, 2022 (n)    $ 3,903,000      $ 4,368,238   
Republic of Georgia, 6.875%, 2021 (n)      7,589,000        8,708,377   
    

 

 

 
             $ 13,076,615   
Guatemala - 0.7%                 
Industrial Senior Trust, 5.5%, 2022 (z)    $ 14,473,000      $ 14,541,891   
Republic of Guatemala, 5.75%, 2022 (n)      23,457,000        26,740,980   
    

 

 

 
             $ 41,282,871   
Hungary - 1.1%                 
Republic of Hungary, 6.375%, 2021    $ 34,216,000      $ 38,109,781   
Republic of Hungary, 7.625%, 2041      13,392,000        15,909,696   
Republic of Hungary, 6.25%, 2020      15,589,000        17,269,494   
    

 

 

 
             $ 71,288,971   
Iceland - 0.6%                 
Republic of Iceland, 4.875%, 2016 (n)    $ 7,686,000      $ 8,079,907   
Republic of Iceland, 5.875%, 2022      6,151,000        6,705,513   
Republic of Iceland, 5.875%, 2022 (n)      18,384,000        20,041,318   
    

 

 

 
             $ 34,826,738   
Indonesia - 7.0%                 
Bumi Investment Pte Ltd., 10.75%, 2017    $ 1,491,000      $ 1,162,980   
Listrindo Capital B.V., 6.95%, 2019 (n)      8,786,000        9,949,442   
Majapahit Holding B.V., 7.75%, 2016      2,695,000        3,207,050   
Majapahit Holding B.V., 7.75%, 2020      16,895,000        21,245,462   
Majapahit Holding B.V., 7.75%, 2020 (n)      1,658,000        2,084,935   
Pertamina PT, 5.25%, 2021 (n)      5,636,000        6,255,960   
Pertamina PT, 6.5%, 2041 (n)      3,717,000        4,423,230   
Pertamina PT, 4.875%, 2022 (n)      18,722,000        20,360,175   
Pertamina PT, 6%, 2042 (n)      20,507,000        23,172,910   
Pertamina PT, 5.25%, 2021      7,867,000        8,732,370   
Pertamina PT, 4.875%, 2022      16,079,000        17,485,912   
Pertamina PT, 6%, 2042      8,132,000        9,189,160   
Pertamina PT, 6.5%, 2041      636,000        756,840   
PT Perusahaan Listrik Negara, 5.25%, 2042 (z)      7,714,000        7,877,537   
PT Perusahaan Listrik Negara, 5.5%, 2021 (n)      11,482,000        12,945,955   
PT Perusahaan Listrik Negara, 5.5%, 2021      9,664,000        10,896,160   
Republic of Indonesia, 4.875%, 2021 (n)      40,849,000        46,567,860   
Republic of Indonesia, 5.875%, 2020      32,853,000        39,464,666   
Republic of Indonesia, 11.625%, 2019      7,716,000        11,728,320   
Republic of Indonesia, 11.625%, 2019 (n)      5,499,000        8,358,480   
Republic of Indonesia, 6.875%, 2018 (n)      1,208,000        1,470,740   
Republic of Indonesia, 3.75%, 2022 (n)      19,961,000        21,108,757   
Republic of Indonesia, 3.75%, 2022      14,934,000        15,792,705   
Republic of Indonesia, 5.875%, 2020 (n)      6,681,000        8,025,551   
Republic of Indonesia, 8.5%, 2035      11,067,000        17,734,867   
Republic of Indonesia, 6.875%, 2018      16,134,000        19,643,145   

 

3


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
Bonds - continued                 
Indonesia - continued                 
Republic of Indonesia, 4.875%, 2021    $ 76,831,000      $ 87,587,340   
    

 

 

 
             $ 437,228,509   
Iraq - 0.2%                 
Republic of Iraq, 5.8%, 2028    $ 16,546,000      $ 15,387,780   
Israel - 0.1%                 
Israel Electric Corp. Ltd., 6.7%, 2017 (n)    $ 5,111,000      $ 5,596,545   
Jamaica - 0.3%                 
Digicel Group Ltd., 8.25%, 2017 (n)    $ 4,779,000      $ 5,137,425   
Digicel Group Ltd., 8.25%, 2017      3,413,000        3,668,975   
Digicel Group Ltd., 8.25%, 2020 (n)      12,390,000        13,350,225   
    

 

 

 
             $ 22,156,625   
Kazakhstan - 1.3%                 
Development Bank of Kazakhstan, 5.5%, 2015 (n)    $ 26,673,000      $ 29,105,578   
Development Bank of Kazakhstan, 5.5%, 2015      1,550,000        1,691,360   
Halyk Savings Bank of Kazakhstan B.V., 7.25%, 2017      17,808,000        18,831,960   
Kazakhstan Temir Zholy Co., 6.95%, 2042 (n)      21,061,000        25,705,793   
Kazatomprom, 6.25%, 2015      650,000        712,562   
Kazatomprom, 6.25%, 2015 (n)      7,325,000        8,030,031   
    

 

 

 
             $ 84,077,284   
Latvia - 0.6%                 
Republic of Latvia, 5.25%, 2017 (n)    $ 16,108,000      $ 17,799,340   
Republic of Latvia, 5.25%, 2021      14,092,000        15,994,420   
Republic of Latvia, 5.25%, 2017      2,915,000        3,221,075   
    

 

 

 
             $ 37,014,835   
Lithuania - 0.9%                 
Republic of Lithuania, 6.125%, 2021 (n)    $ 17,474,000      $ 21,012,485   
Republic of Lithuania, 6.625%, 2022 (n)      22,170,000        27,435,375   
Republic of Lithuania, 6.625%, 2022      1,500,000        1,856,250   
Republic of Lithuania, 6.125%, 2021      3,176,000        3,819,140   
    

 

 

 
             $ 54,123,250   
Malaysia - 1.4%                 
Government of Malaysia, 3.702%, 2013    MYR 42,772,000      $ 14,069,826   
Petronas Capital Ltd., 7.875%, 2022    $ 6,404,000        9,232,897   
Petronas Capital Ltd., 5.25%, 2019      44,305,000        53,048,902   
Petronas Capital Ltd., 5.25%, 2019 (n)      7,725,000        9,249,583   
    

 

 

 
             $ 85,601,208   
Mexico - 9.4%                 
BBVA Bancomer S.A. de C.V., 6.5%, 2021 (n)    $ 6,732,000      $ 7,682,895   
BBVA Bancomer S.A. de C.V., 6.75%, 2022      6,219,000        7,043,018   
BBVA Bancomer S.A. de C.V., 6.75%, 2022 (n)      14,251,000        16,139,258   
CEMEX S.A.B. de C.V., 9.25%, 2020      6,552,000        6,814,080   
CEMEX S.A.B. de C.V., 9%, 2018 (n)      4,202,000        4,359,575   
CEMEX S.A.B. de C.V., 9%, 2018      10,866,000        11,273,475   
Comision Federal de Electricidad, 4.875%, 2021 (n)      14,446,000        16,215,635   
Comision Federal de Electricidad, 5.75%, 2042 (n)      14,436,000        16,384,860   
Comision Federal de Electricidad, 4.875%, 2021      2,400,000        2,694,000   
Empresas ICA, S.A.B. de C.V., 8.375%, 2017 (n)      6,564,000        7,007,070   

 

4


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
Bonds - continued                 
Mexico - continued                 
Grupo Bimbo S.A.B. de C.V., 4.5%, 2022    $ 4,908,000      $ 5,399,026   
Grupo Bimbo S.A.B. de C.V., 4.5%, 2022 (n)      10,445,000        11,489,980   
Mexichem S.A.B. de C.V., 6.75%, 2042 (z)      3,333,000        3,599,640   
Mexichem S.A.B. de C.V., 4.875%, 2022 (n)      7,458,000        7,886,835   
Pemex Project Funding Master Trust, 6.625%, 2038      8,401,000        10,501,250   
Pemex Project Funding Master Trust, 6.625%, 2035      31,847,000        39,729,133   
Pemex Project Funding Master Trust, 5.75%, 2018      13,231,000        15,414,115   
Petroleos Mexicanos, 5.5%, 2021      30,201,000        35,259,667   
Petroleos Mexicanos, 6%, 2020      16,414,000        19,614,730   
Petroleos Mexicanos, 4.875%, 2022      3,869,000        4,333,280   
Petroleos Mexicanos, 6.5%, 2041      15,433,000        19,156,211   
Petroleos Mexicanos, 5.5%, 2044 (z)      9,643,000        10,510,870   
Petroleos Mexicanos, 5.5%, 2044      4,999,000        5,448,910   
Sigma Alimentos S.A., 5.625%, 2018 (n)      6,953,000        7,874,273   
Sigma Alimentos S.A., 5.625%, 2018      1,850,000        2,095,125   
United Mexican States, 5.75%, 2110      38,723,000        45,499,525   
United Mexican States, 6.05%, 2040      23,414,000        31,082,085   
United Mexican States, 3.625%, 2022      74,140,000        80,997,950   
United Mexican States, 5.125%, 2020      100,081,000        119,596,795   
United Mexican States, 5.95%, 2019      13,136,000        16,222,960   
    

 

 

 
             $ 587,326,226   
Nigeria - 0.3%                 
Afren PLC, 11.5%, 2016 (n)    $ 5,123,000      $ 5,840,220   
Afren PLC, 10.25%, 2019 (n)      8,967,000        10,267,215   
    

 

 

 
             $ 16,107,435   
Panama - 0.7%                 
Panama Canal Railway Co., 7%, 2026    $ 5,387,646      $ 5,091,325   
Panama Canal Railway Co., 7%, 2026 (n)      1,122,990        1,061,226   
Republic of Panama, 9.375%, 2029      8,604,000        14,755,860   
Republic of Panama, 6.7%, 2036      4,650,000        6,619,275   
Republic of Panama, 8.875%, 2027      9,132,000        14,816,670   
    

 

 

 
             $ 42,344,356   
Peru - 2.2%                 
Ajecorp B.V., 6.5%, 2022 (n)    $ 7,850,000      $ 8,576,125   
Banco de Credito del Peru, 5.375%, 2020      3,961,000        4,376,905   
Banco de Credito del Peru, 6.125% to 2022, FRN to 2027 (n)      9,746,000        10,903,338   
Banco de Credito del Peru, FRN, 6.125%, 2027      1,200,000        1,342,500   
BBVA Banco Continental S.A., 5%, 2022 (n)      17,298,000        18,422,370   
BBVA Banco Continental S.A., 5%, 2022      580,000        617,700   
Corporacion Azucarera del Peru S.A., 6.375%, 2022 (n)      6,335,000        6,873,475   
Corporacion Financiera de Desarrollo S.A., 4.75%, 2022 (n)      12,031,000        13,444,643   
Corporacion Jose R Lindey S.A., 6.75%, 2021 (n)      6,098,000        7,034,043   
IIRSA Norte Finance Ltd., 8.75%, 2024 (n)      175,312        214,758   
IIRSA Norte Finance Ltd., 8.75%, 2024      4,315,143        5,286,051   
Republic of Peru, 7.35%, 2025      22,926,000        33,357,330   
Republic of Peru, 5.625%, 2050      5,951,000        7,706,545   
Southern Copper Corp., 6.75%, 2040      6,341,000        7,523,856   
Southern Copper Corp., 7.5%, 2035      10,146,000        12,861,729   
    

 

 

 
             $ 138,541,368   

 

5


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
Bonds - continued                 
Philippines - 4.9%                 
National Power Corp., 8.4%, 2016    $ 786,000      $ 970,710   
National Power Corp., 6.875%, 2016 (n)      477,000        564,053   
Power Sector Assets & Liabilities Management Corp., 7.39%, 2024      8,742,000        12,260,655   
Power Sector Assets & Liabilities Management Corp., 7.39%, 2024 (n)      3,247,000        4,553,918   
Republic of Philippines, 6.375%, 2032      30,950,000        42,362,812   
Republic of Philippines, 5.5%, 2026      64,912,000        82,113,680   
Republic of Philippines, 6.375%, 2034      76,769,000        106,708,910   
Republic of Philippines, 10.625%, 2025      3,334,000        5,859,505   
Republic of Philippines, 9.375%, 2017      11,615,000        15,331,800   
Republic of Philippines, 7.5%, 2024      22,299,000        31,999,065   
Republic of Philippines, 9.875%, 2019      3,508,000        5,086,600   
    

 

 

 
             $ 307,811,708   
Poland - 1.0%                 
Eileme 2 AB, 11.625%, 2020 (n)    $ 10,257,000      $ 11,526,304   
PKO Finance AB, 4.63%, 2022 (n)      14,449,000        14,896,919   
Republic of Poland, 5.125%, 2021      14,418,000        16,943,169   
Republic of Poland, 5%, 2022      14,807,000        17,252,968   
    

 

 

 
             $ 60,619,360   
Qatar - 0.2%                 
Ras Laffan Liquefied Natural Gas Co. Ltd., 6.75%, 2019    $ 1,800,000      $ 2,256,300   
Ras Laffan Liquefied Natural Gas Co. Ltd., 6.75%, 2019 (n)      2,707,000        3,393,225   
Ras Laffan Liquefied Natural Gas Co. Ltd., 5.298%, 2020      4,343,983        4,897,840   
    

 

 

 
             $ 10,547,365   
Romania - 0.2%                 
Republic of Romania, 6.75%, 2022    $ 500,000      $ 577,500   
Republic of Romania, 6.75%, 2022 (n)      9,768,000        11,282,040   
    

 

 

 
             $ 11,859,540   
Russia - 12.0%                 
Alfa Bank, 7.5%, 2019 (n)    $ 15,297,000      $ 15,721,639   
Brunswick Rail, 6.5%, 2017 (z)      19,954,000        20,246,908   
Credit Suisse (Russian Federation, CLN), 7.6%, 2021 (z)    RUB 408,954,000        13,305,116   
Gaz Capital S.A., 8.125%, 2014 (n)    $ 715,000        783,955   
Gaz Capital S.A., 4.95%, 2022      7,732,000        8,200,683   
Gaz Capital S.A., 9.25%, 2019      7,060,000        9,213,300   
Gaz Capital S.A., 8.146%, 2018      15,416,000        18,886,604   
Gaz Capital S.A., 5.999%, 2021      34,887,000        39,387,423   
Gaz Capital S.A., 4.95%, 2022 (n)      31,525,000        33,435,919   
Gaz Capital S.A., 4.95%, 2016 (n)      9,949,000        10,612,001   
Gaz Capital S.A., 5.999%, 2021 (n)      24,840,000        28,044,360   
Gazprom, 4.375%, 2022 (n)      12,567,000        12,598,418   
LUKOIL International Finance B.V., 6.656%, 2022      16,177,000        19,540,198   
Russian Federation, 7.5%, 2030      152,205,182        192,737,422   
Russian Federation, 5%, 2020 (n)      25,100,000        29,053,250   
Russian Federation, 4.5%, 2022      2,400,000        2,685,120   
Russian Federation, 5.625%, 2042      1,000,000        1,201,300   
Russian Federation, 4.5%, 2022 (n)      39,200,000        43,856,960   
Russian Federation, 5.625%, 2042 (n)      47,400,000        56,941,620   
Russian Federation, 5%, 2020      70,200,000        81,256,500   
RZD Capital Ltd., 5.7%, 2022      8,505,000        9,451,607   
Sberbank of Russia, 6.125%, 2022      5,946,000        6,653,752   
Sberbank of Russia, 6.125%, 2022 (n)      26,262,000        29,387,966   

 

6


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
Bonds - continued                 
Russia - continued                 
Severstal (Steel Cap), 5.9%, 2022 (z)    $ 13,006,000      $ 12,911,707   
VimpelCom Ltd., 7.504%, 2022      17,397,000        18,788,760   
Vnesheconombank, 6.025%, 2022 (n)      12,604,000        14,069,845   
VTB Capital S.A., 6%, 2017      1,196,000        1,248,325   
VTB Capital S.A., 6%, 2017 (n)      16,801,000        17,536,044   
    

 

 

 
             $ 747,756,702   
Serbia - 0.2%                 
Republic of Serbia, 7.25%, 2021 (n)    $ 9,410,000      $ 10,021,650   
Singapore - 0.3%                 
DBS Bank Ltd., 3.625% to 2017, FRN to 2022 (n)    $ 16,330,000      $ 16,836,834   
Slovakia - 0.4%                 
Republic of Slovakia, 4.375%, 2022    $ 5,446,000      $ 5,813,006   
Republic of Slovakia, 4.375%, 2022 (n)      16,537,000        17,651,428   
    

 

 

 
             $ 23,464,434   
Slovenia - 0.3%                 
Republic of Slovenia, 5.5%, 2022 (z)    $ 19,034,000      $ 19,052,969   
South Africa - 1.0%                 
Myriad International Holdings B.V., 6.375%, 2017 (n)    $ 4,138,000      $ 4,686,285   
Republic of South Africa, 5.5%, 2020      10,046,000        11,736,742   
Republic of South Africa, 6.875%, 2019      6,145,000        7,652,983   
Republic of South Africa, 4.665%, 2024      18,547,000        20,494,435   
Transnet SOC Ltd., 4.5%, 2016 (n)      5,355,000        5,692,338   
Transnet SOC Ltd., 4%, 2022 (n)      9,648,000        9,648,000   
    

 

 

 
             $ 59,910,783   
South Korea - 0.1%                 
Hyundai Capital America, 4%, 2017 (n)    $ 6,012,000      $ 6,499,032   
Sri Lanka - 0.8%                 
Bank of Ceylon, 6.875%, 2017    $ 6,149,000      $ 6,594,803   
Bank of Ceylon, 6.875%, 2017 (n)      10,010,000        10,735,725   
Republic of Sri Lanka, 6.25%, 2020 (n)      12,141,000        13,597,920   
Republic of Sri Lanka, 6.25%, 2021 (n)      4,650,000        5,199,630   
Republic of Sri Lanka, 6.25%, 2020      1,555,000        1,741,600   
Republic of Sri Lanka, 6.25%, 2021      2,952,000        3,300,926   
Republic of Sri Lanka, 5.875%, 2022 (n)      8,390,000        9,187,050   
    

 

 

 
             $ 50,357,654   
Supranational - 0.2%                 
Eurasian Development Bank, 4.767%, 2022 (n)    $ 10,431,000      $ 10,678,736   
Thailand - 0.8%                 
Bangkok Bank (Hong Kong), 3.875%, 2022 (n)    $ 16,712,000      $ 16,971,404   
PTT PLC, 3.375%, 2022 (z)      10,488,000        10,347,052   
PTT PLC, 4.5%, 2042 (z)      11,203,000        11,140,756   
PTTEP Canada International Finance Ltd., 6.35%, 2042 (n)      10,289,000        13,018,600   
    

 

 

 
             $ 51,477,812   
Trinidad & Tobago - 0.4%                 
Petroleum Co. of Trinidad & Tobago Ltd., 9.75%, 2019    $ 6,531,000      $ 8,620,920   

 

7


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
Bonds - continued                 
Trinidad & Tobago - continued                 
Petroleum Co. of Trinidad & Tobago Ltd., 9.75%, 2019 (n)    $ 2,286,000      $ 3,017,520   
Petroleum Co. of Trinidad & Tobago Ltd., 6%, 2022      11,285,000        12,216,012   
    

 

 

 
             $ 23,854,452   
Turkey - 10.1%                 
Akbank T.A.S., 3.875%, 2017 (z)    $ 12,428,000      $ 12,417,560   
Akbank T.A.S., 5%, 2022 (z)      9,814,000        9,980,347   
Republic of Turkey, 7%, 2020      52,795,000        65,914,557   
Republic of Turkey, 5.625%, 2021      53,605,000        62,315,812   
Republic of Turkey, 7.5%, 2019      49,371,000        62,676,484   
Republic of Turkey, 6.75%, 2018      14,067,000        16,746,763   
Republic of Turkey, 11.875%, 2030      5,182,000        9,832,845   
Republic of Turkey, 6%, 2041      54,860,000        64,460,500   
Republic of Turkey, 6.25%, 2022      68,232,000        82,663,068   
Republic of Turkey, 7.375%, 2025      40,707,000        53,224,402   
Republic of Turkey, 5.125%, 2022      33,950,000        38,108,875   
Republic of Turkey, 7%, 2019      25,452,000        31,216,878   
Republic of Turkey, 8%, 2034      9,175,000        13,120,250   
Turkiye Garanti Bankasi A.S., 5.25%, 2022 (n)      15,076,000        15,603,660   
Turkiye Halk Bankasi A.S., 4.875%, 2017 (n)      14,858,000        15,155,160   
Turkiye Ihracat Kredi Bankasi A.S., 5.875%, 2019 (n)      12,015,000        13,144,410   
Turkiye Ihracat Kredi Bankasi A.S., 5.375%, 2016      2,000,000        2,136,300   
Turkiye Ihracat Kredi Bankasi A.S., 5.375%, 2016 (n)      12,511,000        13,363,625   
Turkiye Is Bankasi A.S., 6%, 2022 (z)      9,912,000        10,115,650   
Turkiye Vakiflar Bankasi, 6%, 2022 (z)      22,989,000        23,027,312   
Turkiye Vakiflar Bankasi T.A.O., 5.75%, 2017 (n)      13,763,000        14,554,373   
    

 

 

 
             $ 629,778,831   
Ukraine - 1.2%                 
Biz Finance PLC, 8.375%, 2015    $ 20,737,000      $ 20,348,181   
Government of Ukraine, 7.95%, 2021 (n)      2,719,000        2,879,258   
Government of Ukraine, 6.25%, 2016 (n)      11,746,000        11,591,188   
Government of Ukraine, 6.25%, 2016      4,928,000        4,863,049   
Government of Ukraine, 7.95%, 2021      1,025,000        1,085,413   
Government of Ukraine, 9.25%, 2017      409,000        446,043   
Government of Ukraine, 9.25%, 2017 (n)      16,793,000        18,313,942   
Naftogaz Ukraine, 9.5%, 2014      17,866,000        18,201,881   
    

 

 

 
             $ 77,728,955   
United Arab Emirates - 0.4%                 
Abu Dhabi National Energy Co. PJSC (TAQA), 5.875%, 2021 (n)    $ 8,067,000      $ 9,599,730   
Dolphin Energy Ltd., 5.5%, 2021 (n)      10,478,000        12,138,763   
Dolphin Energy Ltd., 5.5%, 2021      1,550,000        1,795,675   
    

 

 

 
             $ 23,534,168   
United States - 0.4%                 
U.S. Treasury Bonds, 6.5%, 2026 (f)    $ 4,629,000      $ 7,086,712   
U.S. Treasury Notes, 1.75%, 2022      15,439,000        15,590,982   
    

 

 

 
             $ 22,677,694   
Uruguay - 0.7%                 
Navios South American Logistics, Inc., 9.25%, 2019    $ 7,016,000      $ 6,647,660   
Republic of Uruguay, 8%, 2022      23,988,296        34,663,088   
Republic of Uruguay, 7.625%, 2036      3,701,000        5,745,802   
    

 

 

 
             $ 47,056,550   

 

8


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
Bonds - continued                 
Venezuela - 10.1%                 
Petroleos de Venezuela S.A., 8.5%, 2017    $ 46,007,000      $ 41,291,282   
Petroleos de Venezuela S.A., 8%, 2013      4,394,000        4,415,970   
Petroleos de Venezuela S.A., 5.25%, 2017      8,970,200        7,086,458   
Republic of Venezuela, 7.65%, 2025      37,676,000        29,669,850   
Republic of Venezuela, 7%, 2038      31,480,000        22,508,200   
Republic of Venezuela, 5.75%, 2016      67,585,000        62,347,162   
Republic of Venezuela, 9.25%, 2027      23,576,000        21,277,340   
Republic of Venezuela, 11.75%, 2026      82,432,000        83,462,400   
Republic of Venezuela, 12.75%, 2022      107,375,000        115,159,687   
Republic of Venezuela, 7%, 2018      28,373,000        24,400,780   
Republic of Venezuela, 9%, 2023      12,922,000        11,339,055   
Republic of Venezuela, 11.95%, 2031      62,345,000        63,747,762   
Republic of Venezuela, 8.5%, 2014      13,228,000        13,426,420   
Republic of Venezuela, 8.25%, 2024      43,122,000        35,575,650   
Republic of Venezuela, 7.75%, 2019      103,507,000        90,051,090   
    

 

 

 
             $ 625,759,106   
Vietnam - 0.1%                 
Republic of Vietnam, 6.75%, 2020    $ 2,034,000      $ 2,374,695   
Republic of Vietnam, 6.875%, 2016      2,309,000        2,551,445   
Republic of Vietnam, 6.75%, 2020 (n)      689,000        804,407   
    

 

 

 
             $ 5,730,547   
Zambia - 0.1%                 
Republic of Zambia, 5.375%, 2022 (n)    $ 6,172,000      $ 6,218,290   
Total Bonds            $ 5,705,901,204   
Money Market Funds - 7.6%                 
MFS Institutional Money Market Portfolio, 0.16%, at Net Asset Value (v)      469,440,427      $ 469,440,427   
Total Investments            $ 6,175,341,631   
Other Assets, Less Liabilities - 0.6%              38,611,925   
Net Assets - 100.0%            $ 6,213,953,556   

 

(a) Non-income producing security.
(f) All or a portion of the security has been segregated as collateral for open futures contracts.
(n) Securities exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be sold in the ordinary course of business in transactions exempt from registration, normally to qualified institutional buyers. At period end, the aggregate value of these securities was $1,659,147,143, representing 26.7% of net assets.
(v) Underlying affiliated fund that is available only to investment companies managed by MFS. The rate quoted for the MFS Institutional Money Market Portfolio is the annualized seven-day yield of the fund at period end.
(z) Restricted securities are not registered under the Securities Act of 1933 and are subject to legal restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are subsequently registered. Disposal of these securities may involve time-consuming negotiations and prompt sale at an acceptable price may be difficult. The fund holds the following restricted securities:

 

Restricted Securities    Acquisition
Date
   Cost      Value  
Akbank T.A.S., 3.875%, 2017    10/15/12      $12,387,400         $12,417,560   
Akbank T.A.S., 5%, 2022    10/15/12      9,716,126         9,980,347   
Brunswick Rail, 6.5%, 2017    10/25/12-10/26/12      19,992,858         20,246,908   
Caixa Economica Federal, 3.5%, 2022    10/26/12      14,275,256         14,325,862   
Credit Suisse (Russian Federation, CLN), 7.6%, 2021    7/06/12      12,218,165         13,305,116   
First Quantum Minerals Ltd., 7.25%, 2019    10/4/12-10/12/12      13,438,575         13,643,520   
Industrial Senior Trust, 5.5%, 2022    10/25/12      14,514,400         14,541,891   

 

9


Portfolio of Investments (unaudited) – continued

 

Restricted Securities – continued    Acquisition
Date
   Cost      Value  
Mexichem S.A.B. de C.V., 6.75%, 2042    10/12/12-10/17/12      $3,642,822         $3,599,640   
PT Perusahaan Listrik Negara, 5.25%, 2042    10/16/12      7,599,405         7,877,537   
PTT PLC, 3.375%, 2022    10/18/12      10,446,640         10,347,052   
PTT PLC, 4.5%, 2042    10/18/12      11,057,629         11,140,756   
Petroleos Mexicanos, 5.5%, 2044    10/12/12      10,694,637         10,510,870   
Republic of Slovenia, 5.5%, 2022    10/19/12      18,746,777         19,052,969   
Severstal (Steel Cap), 5.9%, 2022    10/4/12      13,006,000         12,911,707   
Turkiye Is Bankasi A.S., 6%, 2022    10/18/12      9,912,000         10,115,650   
Turkiye Vakiflar Bankasi, 6%, 2022    10/24/12      22,989,000         23,027,312   
Total Restricted Securities            $207,044,697   
% of Net assets            3.3%   

The following abbreviations are used in this report and are defined:

 

CLN   Credit-Linked Note
COP   Certificate of Participation
FRN   Floating Rate Note. Interest rate resets periodically and may not be the rate reported at period end.
PLC   Public Limited Company

Abbreviations indicate amounts shown in currencies other than the U.S. dollar. All amounts are stated in U.S. dollars unless otherwise indicated. A list of abbreviations is shown below:

 

BRL   Brazilian Real
COP   Colombian Peso
INR   Indian Rupee
KRW   Korean Won
MXN   Mexican Peso
MYR   Malaysian Ringgit
PLN   Polish Zloty
RUB   Russian Ruble
ZAR   South African Rand

Derivative Contracts at 10/31/12

Forward Foreign Currency Exchange Contracts at 10/31/12

 

Type    Currency      Counterparty    Contracts to
Deliver/Receive
   Settlement
Date Range
   In Exchange
For
     Contracts
at Value
     Net Unrealized
Appreciation
(Depreciation)
 
Asset Derivatives               
BUY      BRL       Deutsche Bank AG    57,890,000    11/05/12-12/04/12    $ 28,333,703       $ 28,451,977       $ 118,274   
BUY      BRL       UBS AG    32,273,000    11/05/12      15,887,855         15,889,811         1,956   
BUY      BRL       UBS AG    113,539,000    12/04/12-2/04/13      55,288,000         55,545,752         257,752   
SELL      BRL       UBS AG    32,273,000    11/05/12      15,890,202         15,889,811         391   
SELL      MXN       Barclays Bank PLC    59,272,000    12/11/12      4,526,308         4,510,245         16,063   
SELL      MXN       Deutsche Bank AG    776,375,000    11/20/12-12/11/12      59,697,192         59,143,361         553,831   
SELL      MXN       JPMorgan Chase Bank N.A.    302,168,000    12/10/12-12/11/12      23,179,945         22,995,018         184,927   
SELL      MXN       UBS AG    244,894,000    12/10/12-1/14/13      18,735,979         18,604,651         131,328   
BUY      MYR       Barclays Bank PLC    24,717,000    11/06/12-12/18/12      8,040,839         8,088,469         47,630   
BUY      MYR       JPMorgan Chase Bank N.A.    23,302,000    11/06/12      7,608,319         7,647,700         39,381   
SELL      MYR       JPMorgan Chase Bank N.A.    44,299,000    12/18/12      14,498,118         14,493,968         4,150   
BUY      PLN       Deutsche Bank AG    113,445,000    11/23/12      34,176,464         35,455,884         1,279,420   
BUY      PLN       JPMorgan Chase Bank N.A.    22,571,000    11/23/12      6,857,360         7,054,297         196,937   
BUY      RUB       Barclays Bank PLC    207,222,000    1/28/13      6,502,102         6,514,230         12,128   
BUY      RUB       JPMorgan Chase Bank N.A.    2,728,704,957    11/06/12-1/28/13      84,657,966         86,651,128         1,993,162   

 

10


Portfolio of Investments (unaudited) – continued

 

Forward Foreign Currency Exchange Contracts at 10/31/12 - continued

 

Type    Currency      Counterparty    Contracts to
Deliver/Receive
   Settlement
Date Range
   In Exchange
For
     Contracts
at Value
     Net Unrealized
Appreciation
(Depreciation)
 
Asset Derivatives – continued               
BUY      RUB       UBS AG    566,581,000    12/13/12-1/28/13    $ 17,710,662       $ 17,862,072       $ 151,410   
SELL      ZAR       JPMorgan Chase Bank N.A.    208,972,000    11/30/12      24,865,186         24,004,430         860,756   
                    

 

 

 
                     $ 5,849,496   
                    

 

 

 
Liability Derivatives               
BUY      BRL       Deutsche Bank AG    37,448,000    12/04/12    $ 18,388,411       $ 18,363,899       $ (24,512
SELL      BRL       Deutsche Bank AG    32,273,000    11/05/12      15,887,855         15,889,811         (1,956
BUY      BRL       Goldman Sachs International    30,423,000    12/04/12      14,942,535         14,918,952         (23,583
BUY      BRL       JPMorgan Chase Bank N.A.    51,242,000    12/04/12      25,166,873         25,128,256         (38,617
BUY      BRL       UBS AG    70,272,000    12/04/12      34,523,213         34,460,263         (62,950
BUY      COP       Barclays Bank PLC    9,101,821,000    12/03/12      4,968,243         4,949,964         (18,279
BUY      COP       Deutsche Bank AG    3,215,905,000    12/03/12      1,751,582         1,748,948         (2,634
BUY      COP       JPMorgan Chase Bank N.A.    7,637,781,000    12/03/12      4,164,548         4,153,756         (10,792
BUY      COP       UBS AG    8,442,038,000    12/03/12      4,593,057         4,591,146         (1,911
BUY      INR       Deutsche Bank AG    1,314,174,000    11/21/12      24,710,013         24,336,410         (373,603
BUY      INR       JPMorgan Chase Bank N.A.    299,831,000    11/21/12-1/25/13      5,529,873         5,495,082         (34,791
BUY      KRW       Barclays Bank PLC    8,441,757,000    12/03/12      7,730,547         7,727,009         (3,538
BUY      KRW       JPMorgan Chase Bank N.A.    8,559,691,000    12/03/12      7,839,303         7,834,957         (4,346
BUY      MXN       Barclays Bank PLC    18,411,000    1/11/13      1,420,483         1,396,717         (23,766
BUY      MXN       Citibank N.A.    389,046,421    11/20/12-1/14/13      29,973,731         29,510,824         (462,907
BUY      MXN       Deutsche Bank AG    633,477,117    11/20/12-12/10/12      49,021,295         48,254,151         (767,144
BUY      MXN       JPMorgan Chase Bank N.A.    1,028,697,617    11/20/12-12/11/12      79,786,684         78,305,548         (1,481,136
BUY      MXN       UBS AG    891,697,921    12/11/12-1/14/13      68,985,742         67,762,043         (1,223,699
SELL      MYR       Barclays Bank PLC    22,625,000    11/06/12      7,411,957         7,425,509         (13,552
SELL      MYR       JPMorgan Chase Bank N.A.    24,233,000    11/06/12-12/18/12      7,934,200         7,940,965         (6,765
SELL      PLN       Barclays Bank PLC    9,490,000    11/23/12      2,827,646         2,965,986         (138,340
SELL      PLN       Deutsche Bank AG    17,426,000    11/23/12      5,188,925         5,446,289         (257,364
SELL      PLN       JPMorgan Chase Bank N.A.    98,831,000    11/23/12      29,451,469         30,888,452         (1,436,983
SELL      PLN       UBS AG    10,202,000    11/23/12      3,046,390         3,188,514         (142,124
BUY      RUB       Barclays Bank PLC    12,211,000    12/14/12      389,382         386,451         (2,931
BUY      RUB       JPMorgan Chase Bank N.A.    655,920,000    11/06/12-12/14/12      20,904,262         20,765,377         (138,885
BUY      RUB       UBS AG    136,671,000    12/14/12      4,350,439         4,325,331         (25,108
BUY      ZAR       Barclays Bank PLC    106,692,000    11/30/12      12,599,684         12,255,616         (344,068
BUY      ZAR       JPMorgan Chase Bank N.A.    122,472,000    11/30/12      14,373,467         14,068,251         (305,216
SELL      ZAR       Deutsche Bank AG    20,140,000    1/11/13      2,264,830         2,298,421         (33,591
                    

 

 

 
                     $ (7,405,091
                    

 

 

 

Futures Contracts Outstanding at 10/31/12

 

Description    Currency      Contracts      Value    Expiration Date    Unrealized
Appreciation
(Depreciation)
 
Asset Derivatives               
Interest Rate Futures               
U.S. Treasury Note 10 yr (Long)      USD         835       $111,081,094    December - 2012      $234,953   
              

 

 

 
Liability Derivatives               
Interest Rate Futures               
U.S. Treasury Bond 30 yr (Long)      USD         361       53,901,813    December - 2012      $(202,714
              

 

 

 
                 $32,239   
              

 

 

 

 

11


Portfolio of Investments (unaudited) – continued

 

Swap Agreements at 10/31/12

 

Expiration     

Notional

Amount

       Counterparty    Cash Flows to
Receive
  Cash Flows
to Pay
  Fair Value  
Liability Derivatives               
Credit Default Swap Agreements       
12/20/22        USD         31,365,235         Goldman Sachs International (a)    1.00% (fixed rate)   (1)     $(200,256
12/20/22        USD         11,333,415         Morgan Stanley Capital Services, Inc. (b)    1.00% (fixed rate)   (1)     (72,360
12/20/17        USD         13,158,000         Goldman Sachs International (c)    1.00% (fixed rate)   (2)     (928,952
12/20/22        USD         4,825,000         Deutsche Bank AG (d)    1.00% (fixed rate)   (3)     (237,666
12/20/22        USD         5,757,000         Merrill Lynch International (e)    1.00% (fixed rate)   (3)     (283,573
12/20/22        USD         9,212,000         Morgan Stanley Capital Services, Inc. (f)    1.00% (fixed rate)   (3)     (453,757
12/20/22        USD         34,297,000         Merrill Lynch International (g)    1.00% (fixed rate)   (4)     (3,223,566
                   

 

 

 
                      $(5,400,130
                   

 

 

 

 

(1) Fund, as protection seller, to pay notional amount upon a defined credit event by Federal Republic of Brazil, 12.25%, 3/06/30, a BBB- rated bond. The fund entered into the contract to gain issuer exposure.

 

(2) Fund, as protection seller, to pay notional amount upon a defined credit event by Republic of Croatia, 5.0%, 4/15/14, a BBB- rated bond. The fund entered into the contract to gain issuer exposure.

 

(3) Fund, as protection seller, to pay notional amount upon a defined credit event by Republic of Phillippines, 10.625%, 3/16/25, a BB+ rated bond. The fund entered into the contract to gain issuer exposure.

 

(4) Fund, as protection seller, to pay notional amount upon a defined credit event by Russian Federation, 7.5%, 3/31/30, a BBB rated bond. The fund entered into the contract to gain issuer exposure.

 

(a) Net unamortized premiums received by the fund amounted to $1,272,314.

 

(b) Net unamortized premiums received by the fund amounted to $459,734.

 

(c) Net unamortized premiums received by the fund amounted to $1,520,587.

 

(d) Net unamortized premiums received by the fund amounted to $214,495.

 

(e) Net unamortized premiums received by the fund amounted to $255,927.

 

(f) Net unamortized premiums received by the fund amounted to $409,519.

 

(g) Net unamortized premiums received by the fund amounted to $3,160,889.

The credit ratings presented here are an indicator of the current payment/performance risk of the related swap agreement, the reference obligation for which may be either a single security or, in the case of a credit default index, a basket of securities issued by corporate or sovereign issuers. Ratings are assigned to each reference security, including each individual security within a reference basket of securities, utilizing ratings from Moody’s, Fitch, and Standard & Poor’s rating agencies and applying the following hierarchy: If all three agencies provide a rating, the middle rating (after dropping the highest and lowest ratings) is assigned; if two of the three agencies rate a security, the lower of the two is assigned. Ratings are shown in the S&P and Fitch scale (e.g., AAA). The ratings for a credit default index are calculated by MFS as a weighted average of the external credit ratings of the individual securities that compose the index’s reference basket of securities.

Although contract-specific, credit events generally consist of a combination of the following: bankruptcy, failure to pay, restructuring, obligation acceleration, obligation default, or repudiation/moratorium, each as defined in the 2003 International Swaps and Derivatives Association (ISDA) Credit Derivatives Definitions as amended by the relevant contract. Restructuring is generally not applicable when the reference obligation is issued by a North American corporation and obligation acceleration, obligation default, or repudiation/moratorium are generally only applicable when the reference obligation is issued by a sovereign entity or an entity in an emerging country. The maximum amount of future, undiscounted payments that the fund, as protection seller, could be required to make is equal to the swap agreement’s notional amount.

At October 31, 2012, the fund had cash collateral of $2,100,000 and other liquid securities with an aggregate value of $2,149,440 to cover any commitments for securities sold short and certain derivative contracts.

See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.

 

12


Supplemental Information

10/31/12 (unaudited)

(1) Investment Valuations

Debt instruments and floating rate loans (other than short-term instruments), including restricted debt instruments, are generally valued at an evaluated or composite bid as provided by a third-party pricing service. Short-term instruments with a maturity at issuance of 60 days or less generally are valued at amortized cost, which approximates market value. Futures contracts are generally valued at last posted settlement price as provided by a third-party pricing service on the market on which they are primarily traded. Futures contracts for which there were no trades that day for a particular position are generally valued at the closing bid quotation as provided by a third-party pricing service on the market on which such futures contracts are primarily traded. Forward foreign currency exchange contracts are generally valued at the mean of bid and asked prices for the time period interpolated from rates provided by a third-party pricing service for proximate time periods. Swap agreements are generally valued at valuations provided by a third-party pricing service. Open-end investment companies are generally valued at net asset value per share. Securities and other assets generally valued on the basis of information from a third-party pricing service may also be valued at a broker/dealer bid quotation. Values obtained from third-party pricing services can utilize both transaction data and market information such as yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates provided by a third-party pricing service.

The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund’s investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund’s valuation policies and procedures, market quotations are not considered to be readily available for most types of debt instruments and floating rate loans and many types of derivatives. These investments are generally valued at fair value based on information from third-party pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment’s value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund’s net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. The adviser generally relies on third-party pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund’s net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of an investment used to determine the fund’s net asset value may differ from quoted or published prices for the same investment. There can be no assurance that the fund could obtain the fair value assigned to an investment if it were to sell the investment at the same time at which the fund determines its net asset value per share.

Various inputs are used in determining the value of the fund’s assets or liabilities. These inputs are categorized into three broad levels. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fund’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Level 1 includes unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes unobservable inputs, which may include the adviser’s own assumptions in determining the fair value of investments. Other financial instruments are derivative instruments not reflected in total investments, such as futures contracts, forward foreign currency exchange contracts, and swap agreements. The following is a summary of the levels used as of October 31, 2012 in valuing the fund’s assets or liabilities:

 

Investments at Value    Level 1      Level 2      Level 3      Total  
U.S. Treasury Bonds & U.S. Government Agency & Equivalents      $—         $22,677,694         $—         $22,677,694   
Non-U.S. Sovereign Debt              4,854,572,597                 4,854,572,597   
Foreign Bonds              828,650,913                 828,650,913   
Mutual Funds      469,440,427                         469,440,427   
Total Investments      $469,440,427         $5,705,901,204         $—         $6,175,341,631   
Other Financial Instruments                            
Futures Contracts      $32,239         $—         $—         $32,239   
Swap Agreements              (5,400,130              (5,400,130
Forward Foreign Currency Exchange Contracts              (1,555,595              (1,555,595

For further information regarding security characteristics, see the Portfolio of Investments.

 

13


Supplemental Information (unaudited) – continued

 

(2) Portfolio Securities

The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows:

 

Aggregate cost      $5,618,313,248   
Gross unrealized appreciation      570,168,815   
Gross unrealized depreciation      (13,140,432
Net unrealized appreciation (depreciation)      $557,028,383   

The aggregate cost above includes prior fiscal year end tax adjustments, if applicable.

(3) Transactions in Underlying Affiliated Funds – Affiliated Issuers

An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the fund assumes the following to be an affiliated issuer:

 

Underlying Affiliated Fund    Beginning
Shares/Par
Amount
     Acquisitions
Shares/Par
Amount
     Dispositions
Shares/Par
Amount
     Ending
Shares/Par
Amount
 
MFS Institutional Money Market Portfolio      281,155,526         600,513,298         (412,228,397      469,440,427   
Underlying Affiliated Fund    Realized
Gain (Loss)
     Capital Gain
Distributions
     Dividend
Income
     Ending Value  
MFS Institutional Money Market Portfolio      $—         $—         $142,112         $469,440,427   

(4) Issuer Country Weightings

Issuer country weighting percentages of portfolio holdings based on net assets, as of October 31, 2012, are as follows:

 

Russia     12.7%   
Turkey     10.3%   
Venezuela     10.3%   
Mexico     9.6%   
Brazil     7.8%   
Indonesia     7.2%   
United States     5.4%   
Philippines     5.3%   
Argentina     2.7%   
Other Countries     28.7%   

The issuer country weighting percentages include both accrued interest amounts and the equivalent exposure from any derivative holdings, if applicable.

 

14


QUARTERLY REPORT

October 31, 2012

 

LOGO

 

MFS® EMERGING MARKETS DEBT LOCAL CURRENCY FUND

 

LOGO


PORTFOLIO OF INVESTMENTS

10/31/12 (unaudited)

The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes.

 

Issuer    Shares/Par     Value ($)  
Bonds - 70.5%                 
Foreign Bonds - 70.5%                 
Argentina - 0.2%                 
Republic of Argentina, FRN, 8.28%, 2033    $ 116,147      $ 75,496   
Brazil - 0.9%                 
Banco do Estado Rio Grande do Sul S.A., 7.375%, 2022    $ 200,000      $ 227,000   
Federative Republic of Brazil, 6%, 2016    BRL 193,113        107,575   
Federative Republic of Brazil, 6%, 2022    BRL 8,778        5,285   
    

 

 

 
             $ 339,860   
Canada - 0.5%                 
First Quantum Minerals Ltd., 7.25%, 2019 (z)    $ 200,000      $ 204,000   
Chile - 0.8%                 
Automotores Gildemeister S.A., 8.25%, 2021    $ 100,000      $ 108,000   
Bonos del Banco Centro de Chile, 3%, 2017    CLP 90,931,160        193,299   
    

 

 

 
             $ 301,299   
Colombia - 1.6%                 
Republic of Colombia, 7.75%, 2021    COP 156,000,000      $ 107,306   
Republic of Colombia, 9.85%, 2027    COP 175,000,000        148,798   
Titulos de Tesoreria, 7.5%, 2026    COP 556,500,000        335,826   
    

 

 

 
             $ 591,930   
Czech Republic - 0.1%                 
Czech Republic, 3.85%, 2021    CZK 420,000      $ 24,900   
Hungary - 4.3%                 
Republic of Hungary, 5.5%, 2014    HUF 37,550,000      $ 170,767   
Republic of Hungary, 8%, 2015    HUF 48,210,000        229,040   
Republic of Hungary, 7.75%, 2015    HUF 23,310,000        110,381   
Republic of Hungary, 5.5%, 2016    HUF 102,530,000        457,635   
Republic of Hungary, 6.75%, 2017    HUF 34,740,000        160,422   
Republic of Hungary, 7.5%, 2020    HUF 61,280,000        291,765   
Republic of Hungary, 6%, 2023    HUF 43,200,000        181,360   
    

 

 

 
             $ 1,601,370   
Indonesia - 6.8%                 
Republic of Indonesia, 9.5%, 2015    IDR 809,000,000      $ 92,724   
Republic of Indonesia, 10.75%, 2016    IDR 1,781,000,000        216,923   
Republic of Indonesia, 11.6%, 2018    IDR 584,000,000        78,847   
Republic of Indonesia, 12.8%, 2021    IDR 855,000,000        131,683   
Republic of Indonesia, 8.25%, 2021    IDR 2,234,000,000        272,680   
Republic of Indonesia, 7%, 2022    IDR 2,150,000,000        245,059   
Republic of Indonesia, 8.375%, 2026    IDR 5,556,000,000        694,165   
Republic of Indonesia, 8.25%, 2032    IDR 6,476,000,000        803,690   
    

 

 

 
             $ 2,535,771   
Jamaica - 0.3%                 
Digicel Group Ltd., 8.25%, 2017    $ 100,000      $ 107,500   
Kazakhstan - 0.5%                 
Halyk Savings Bank of Kazakhstan B.V., 7.25%, 2017    $ 170,000      $ 179,775   

 

1


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
Bonds - continued                 
Foreign Bonds - continued                 
Malaysia - 5.6%                 
Government of Malaysia, 4.262%, 2016    MYR 950,000      $ 324,585   
Government of Malaysia, 4.24%, 2018    MYR 694,000        238,500   
Government of Malaysia, 4.378%, 2019    MYR 118,000        41,140   
Government of Malaysia, 4.16%, 2021    MYR 1,885,000        648,246   
Government of Malaysia, 3.418%, 2022    MYR 533,000        174,215   
Government of Malaysia, 4.392%, 2026    MYR 468,000        166,050   
Government of Malaysia, 4.498%, 2030    MYR 155,000        55,370   
Government of Malaysia, 4.232%, 2031    MYR 461,000        158,879   
Government of Malaysia, 4.127%, 2032    MYR 816,000        276,493   
    

 

 

 
             $ 2,083,478   
Mexico - 6.6%                 
BBVA Bancomer S.A. de C.V., 6.75%, 2022    $ 162,000      $ 183,465   
CEMEX S.A.B. de C.V., 9.25%, 2020      86,000        89,440   
Petroleos Mexicanos, 7.65%, 2021    MXN 4,230,000        352,349   
United Mexican States, 8%, 2015    MXN 3,680,000        304,635   
United Mexican States, 7.75%, 2017    MXN 3,050,000        259,800   
United Mexican States, 8.5%, 2029    MXN 5,350,000        506,955   
United Mexican States, 7.75%, 2031    MXN 1,800,000        158,433   
United Mexican States, 10%, 2036    MXN 2,350,000        253,911   
United Mexican States, 8.5%, 2038    MXN 3,720,000        351,617   
    

 

 

 
             $ 2,460,605   
Nigeria - 1.0%                 
Federal Republic of Nigeria, 0%, 2013    NGN 28,274,000      $ 172,897   
Federal Republic of Nigeria, 16.39%, 2022    NGN 25,428,000        189,860   
    

 

 

 
             $ 362,757   
Peru - 1.9%                 
Banco de Credito del Peru, FRN, 6.125%, 2027    $ 82,000      $ 91,738   
Republic of Peru, 6.95%, 2031    PEN 363,000        170,651   
Republic of Peru, 6.9%, 2037    PEN 506,000        239,186   
Republic of Peru, 6.9%, 2037    PEN 440,000        207,988   
    

 

 

 
             $ 709,563   
Poland - 6.5%                 
Government of Poland, 5%, 2016    PLN 280,000      $ 90,508   
Government of Poland, 5.25%, 2017    PLN 1,549,000        509,484   
Government of Poland, 5.5%, 2019    PLN 691,000        232,343   
Government of Poland, 5.25%, 2020    PLN 920,000        303,849   
Government of Poland, 5.75%, 2021    PLN 506,000        172,753   
Government of Poland, 5.75%, 2022    PLN 3,191,000        1,094,734   
    

 

 

 
             $ 2,403,671   
Russia - 8.4%                 
Alfa Bank, 7.5%, 2019 (n)    $ 200,000      $ 205,552   
Credit Suisse (Russian Federation, CLN), 7.35%, 2016 (z)    RUB 10,000,000        323,062   
Credit Suisse First Boston (Russian Federation, CLN), 7.4%, 2017 (z)    RUB 32,000,000        1,037,370   
Deutsche Bank (Russian Federation, CLN), 7.5%, 2018 (n)    RUB 35,000,000        1,138,193   
Gaz Capital S.A., 4.95%, 2022    $ 200,000        212,123   
VimpelCom Ltd., 7.504%, 2022      200,000        216,000   
    

 

 

 
             $ 3,132,300   

 

2


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
Bonds - continued                 
Foreign Bonds - continued                 
South Africa - 9.1%                 
Republic of South Africa, 13.5%, 2015    ZAR 2,181,000      $ 304,474   
Republic of South Africa, 8%, 2018    ZAR 5,331,000        672,202   
Republic of South Africa, 7.25%, 2020    ZAR 1,422,000        171,159   
Republic of South Africa, 6.75%, 2021    ZAR 170,000        19,709   
Republic of South Africa, 5.5%, 2023    ZAR 611,338        102,091   
Republic of South Africa, 10.5%, 2026    ZAR 2,851,000        406,360   
Republic of South Africa, 7%, 2031    ZAR 2,163,000        218,932   
Republic of South Africa, 6.25%, 2036    ZAR 4,857,000        432,517   
Transnet Ltd., 9.25%, 2017    ZAR 5,000,000        635,064   
Transnet Ltd., 10.5%, 2020    ZAR 3,000,000        401,447   
    

 

 

 
             $ 3,363,955   
Thailand - 4.1%                 
Kingdom of Thailand, 3.625%, 2015    THB 6,655,000      $ 220,619   
Kingdom of Thailand, 3.45%, 2019    THB 4,600,000        152,063   
Kingdom of Thailand, 3.875%, 2019    THB 6,695,000        227,712   
Kingdom of Thailand, 3.65%, 2021    THB 13,163,000        440,936   
Kingdom of Thailand, 4.75%, 2024    THB 7,603,000        277,510   
Kingdom of Thailand, 4.875%, 2029    THB 2,856,000        106,239   
Kingdom of Thailand, 3.775%, 2032    THB 2,503,000        80,939   
    

 

 

 
             $ 1,506,018   
Turkey - 10.8%                 
Republic of Turkey, 11%, 2014    TRY 240,000      $ 142,527   
Republic of Turkey, 10%, 2015    TRY 490,000        292,497   
Republic of Turkey, 9%, 2016    TRY 2,375,000        1,391,213   
Republic of Turkey, 10.5%, 2020    TRY 878,000        562,802   
Republic of Turkey, 9.5%, 2022    TRY 2,008,000        1,226,644   
Republic of Turkey, 3%, 2022    TRY 298,228        184,011   
Turkiye Vakiflar Bankasi, 6%, 2022 (z)    $ 200,000        200,333   
    

 

 

 
             $ 4,000,027   
Venezuela - 0.5%                 
Republic of Venezuela, 12.75%, 2022    $ 170,000      $ 182,325   
Republic of Venezuela, 9.25%, 2027      19,000        17,148   
    

 

 

 
             $ 199,473   
Total Bonds            $ 26,183,748   
Money Market Funds - 27.6%                 
MFS Institutional Money Market Portfolio, 0.16%, at Net Asset Value (v)      10,238,294      $ 10,238,294   
Total Investments            $ 36,422,042   
Other Assets, Less Liabilities - 1.9%              719,151   
Net Assets - 100.0%            $ 37,141,193   

 

(n) Securities exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be sold in the ordinary course of business in transactions exempt from registration, normally to qualified institutional buyers. At period end, the aggregate value of these securities was $1,343,745 representing 3.6% of net assets.
(v) Underlying affiliated fund that is available only to investment companies managed by MFS. The rate quoted for the MFS Institutional Money Market Portfolio is the annualized seven-day yield of the fund at period end.

 

3


Portfolio of Investments (unaudited) – continued

 

(z) Restricted securities are not registered under the Securities Act of 1933 and are subject to legal restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are subsequently registered. Disposal of these securities may involve time-consuming negotiations and prompt sale at an acceptable price may be difficult. The fund holds the following restricted securities:

 

Restricted Securities    Acquisition
Date
   Cost      Value  
Credit Suisse (Russian Federation, CLN), 7.35%, 2016    1/27/12      $329,538         $323,062   
Credit Suisse First Boston (Russian Federation, CLN), 7.4%, 2017    6/29/12      968,373         1,037,370   
First Quantum Minerals Ltd., 7.25%, 2019    10/22/12      207,483         204,000   
Turkiye Vakiflar Bankasi, 6%, 2022    10/24/12      200,000         200,333   
Total Restricted Securities            $1,764,765   
% of Net assets            4.8%   

The following abbreviations are used in this report and are defined:

 

BUBOR   Budapest Interbank Offered Rate
CDI   Interbank Deposit Certificates
CLN   Credit-Linked Note
FRN   Floating Rate Note. Interest rate resets periodically and may not be the rate reported at period end.
KLIBOR   Kuala Lumpur Interbank Offered Rate
THBFIX   Thai Baht Floating Rate Fixed
TIIE   Interbank Equilibrium Interest Rate
WIBOR   Warsaw Interbank Offered Rate

Abbreviations indicate amounts shown in currencies other than the U.S. dollar. All amounts are stated in U.S. dollars unless otherwise indicated. A list of abbreviations is shown below:

 

BRL   Brazilian Real
CLP   Chilean Peso
COP   Colombian Peso
CZK   Czech Koruna
HUF   Hungarian Forint
IDR   Indonesian Rupiah
MXN   Mexican Peso
MYR   Malaysian Ringgit
NGN   Nigerian Naira
PEN   Peruvian Nuevo Sol
PLN   Polish Zloty
RUB   Russian Ruble
THB   Thailand Baht
TRY   Turkish Lira
ZAR   South African Rand

Derivative Contracts at 10/31/12

Forward Foreign Currency Exchange Contracts at 10/31/12

 

Type    Currency     Counterparty    Contracts to
Deliver/Receive
   Settlement
Date Range
   In Exchange
For
     Contracts
at Value
     Net Unrealized
Appreciation
(Depreciation)
 
Asset Derivatives               
BUY      BRL      Citibank N.A.    331,000    12/04/12    $ 162,039       $ 162,314       $ 275   
BUY      BRL      Deutsche Bank AG    1,291,000    11/05/12-12/04/12      631,237         634,277         3,040   
BUY      BRL      Goldman Sachs International    411,000    12/04/12      200,253         201,548         1,295   
BUY      BRL      JPMorgan Chase Bank N.A.    336,000    12/04/12      164,585         164,769         184   
BUY      BRL      UBS AG    7,196,227    12/04/12-2/04/13      3,506,730         3,526,445         19,715   
BUY      BRL      UBS AG    604,000    11/05/12      297,347         297,383         37   
SELL      BRL      UBS AG    604,000    11/05/12      297,390         297,383         7   
SELL      CLP      Barclays Bank PLC    89,489,000    11/30/12      188,497         185,343         3,154   

 

4


Portfolio of Investments (unaudited) – continued

 

Forward Foreign Currency Exchange Contracts at 10/31/12 - continued

 

Type    Currency     Counterparty    Contracts to
Deliver/Receive
   Settlement
Date Range
   In Exchange
For
     Contracts
at Value
     Net Unrealized
Appreciation
(Depreciation)
 
Asset Derivatives – continued               
BUY      COP      JPMorgan Chase Bank N.A.    843,081,000    11/02/12-11/30/12    $ 457,058       $ 459,368       $ 2,310   
SELL      COP      Citibank N.A.    283,254,000    11/02/12      155,154         154,634         520   
SELL      COP      JPMorgan Chase Bank N.A.    330,144,000    11/16/12      182,551         179,922         2,629   
SELL      COP      UBS AG    266,136,000    11/02/12      145,330         145,289         41   
SELL      CZK      Goldman Sachs International    440,461    1/11/13      23,110         22,763         347   
BUY      IDR      JPMorgan Chase Bank N.A.    3,593,791,912    12/13/12      371,912         372,208         296   
SELL      IDR      JPMorgan Chase Bank N.A.    2,604,172,000    12/13/12      269,862         269,713         149   
BUY      INR      Citibank N.A.    4,146,000    11/21/12      76,370         76,777         407   
SELL      MXN      Citibank N.A.    633,000    12/10/12      49,314         48,172         1,142   
SELL      MXN      Deutsche Bank AG    2,651,000    11/20/12      204,343         202,150         2,193   
SELL      MXN      JPMorgan Chase Bank N.A.    8,528,000    12/10/12-1/11/13      652,382         648,147         4,235   
BUY      MYR      Barclays Bank PLC    1,967,000    11/06/12-12/18/12      640,220         644,351         4,131   
BUY      MYR      Credit Suisse Group    264,000    11/06/12      85,998         86,645         647   
BUY      MYR      Deutsche Bank AG    2,013,466    11/06/12      645,942         660,818         14,876   
BUY      MYR      HSBC BANKUSA    300,000    11/06/12      96,200         98,460         2,260   
BUY      MYR      JPMorgan Chase Bank N.A.    2,512,015    11/06/12      807,899         824,442         16,543   
BUY      NGN      JPMorgan Chase Bank N.A.    15,843,000    1/02/13      97,555         99,143         1,588   
SELL      PEN      Deutsche Bank AG    1,583,911    1/24/13      610,959         608,463         2,496   
BUY      PHP      JPMorgan Chase Bank N.A.    7,554,000    11/13/12      182,332         183,355         1,023   
BUY      PLN      Barclays Bank PLC    221,000    11/23/12      68,401         69,071         670   
BUY      PLN      Citibank N.A.    296,878    11/23/12      92,103         92,786         683   
BUY      PLN      Deutsche Bank AG    6,425,408    11/23/12      1,932,836         2,008,185         75,349   
BUY      PLN      UBS AG    85,000    11/23/12      26,493         26,566         73   
SELL      PLN      Citibank N.A.    747,350    11/23/12      235,851         233,575         2,276   
SELL      PLN      JPMorgan Chase Bank N.A.    1,448,919    11/23/12      455,551         452,842         2,709   
BUY      RUB      Barclays Bank PLC    11,882,000    11/06/12-1/28/13      371,528         376,652         5,124   
BUY      RUB      Citibank N.A.    2,367,000    11/06/12      75,125         75,414         289   
BUY      RUB      JPMorgan Chase Bank N.A.    28,074,212    12/13/12-1/28/13      881,269         882,831         1,562   
BUY      RUB      UBS AG    5,716,000    12/13/12-1/28/13      178,623         179,980         1,357   
SELL      RUB      JPMorgan Chase Bank N.A.    229,000    11/06/12      7,340         7,296         44   
BUY      THB      JPMorgan Chase Bank N.A.    33,840,366    11/30/12-1/11/13      1,091,861         1,099,708         7,847   
BUY      THB      Merrill Lynch International Bank    1,608,030    11/30/12      51,667         52,292         625   
BUY      TRY      Barclays Bank PLC    586,000    1/11/13      322,307         323,922         1,615   
BUY      TRY      Citibank N.A.    50,000    1/11/13      27,491         27,638         147   
BUY      TRY      JPMorgan Chase Bank N.A.    536,458    1/11/13      290,810         296,537         5,727   
BUY      ZAR      Citibank N.A.    3,801,416    1/11/13      423,113         433,826         10,713   
BUY      ZAR      Deutsche Bank AG    3,472,843    1/11/13      390,536         396,329         5,793   
BUY      ZAR      Goldman Sachs International    1,283,529    11/30/12      146,473         147,438         965   
SELL      ZAR      Barclays Bank PLC    9,665,415    11/30/12      1,141,428         1,110,258         31,170   
SELL      ZAR      JPMorgan Chase Bank N.A.    2,989,000    11/30/12      350,793         343,344         7,449   
SELL      PHP      Barclays Bank PLC    1,000    11/13/12      24         24         0   
                   

 

 

 
                    $ 247,727   
                   

 

 

 
Liability Derivatives               
BUY      BRL      Deutsche Bank AG    393,000    12/04/12    $ 193,026       $ 192,721       $ (305
SELL      BRL      Deutsche Bank AG    604,000    11/05/12      297,347         297,383         (37
BUY      BRL      Goldman Sachs International    287,000    12/04/12      140,963         140,740         (223
BUY      BRL      JPMorgan Chase Bank N.A.    302,000    12/04/12      148,294         148,096         (198
BUY      COP      Citibank N.A.    627,191,000    11/02/12-11/16/12      345,766         342,074         (3,692
BUY      COP      JPMorgan Chase Bank N.A.    779,961,000    11/02/12-12/03/12      426,219         424,524         (1,695
BUY      COP      UBS AG    789,790,000    11/02/12-11/30/12      433,087         430,180         (2,907
SELL      COP      JPMorgan Chase Bank N.A.    473,030,000    11/02/12      257,923         258,237         (314

 

5


Portfolio of Investments (unaudited) – continued

 

Forward Foreign Currency Exchange Contracts at 10/31/12 - continued

 

Type    Currency     Counterparty    Contracts to
Deliver/Receive
   Settlement
Date Range
   In Exchange
For
     Contracts
at Value
     Net Unrealized
Appreciation
(Depreciation)
 
Liability Derivatives – continued               
BUY      HUF      Barclays Bank PLC    110,726,493    1/25/13    $ 503,387       $ 501,524       $ (1,863
SELL      HUF      Barclays Bank PLC    92,323,000    1/25/13      415,403         418,167         (2,764
SELL      IDR      JPMorgan Chase Bank N.A.    1,591,407,000    12/13/12      164,241         164,822         (581
BUY      INR      Barclays Bank PLC    4,726,000    1/25/13      87,099         86,526         (573
BUY      INR      Credit Suisse Group    269,000    11/21/12      5,052         4,981         (71
BUY      INR      Deutsche Bank AG    6,959,000    11/21/12      130,875         128,870         (2,005
BUY      INR      JPMorgan Chase Bank N.A.    33,625,000    11/21/12-1/25/13      627,522         617,790         (9,732
BUY      KRW      Barclays Bank PLC    97,871,000    12/03/12      89,625         89,584         (41
BUY      KRW      JPMorgan Chase Bank N.A.    104,386,000    12/03/12      95,601         95,548         (53
BUY      MXN      Citibank N.A.    14,894,310    1/14/13      1,147,332         1,129,568         (17,764
BUY      MXN      Deutsche Bank AG    4,504,597    11/20/12-12/10/12      347,308         343,421         (3,887
BUY      MXN      JPMorgan Chase Bank N.A.    2,677,542    12/10/12-12/11/12      208,073         203,749         (4,324
BUY      MXN      UBS AG    16,116,255    12/11/12-1/14/13      1,241,833         1,222,798         (19,035
SELL      MXN      UBS AG    3,634,000    12/11/12      276,318         276,526         (208
SELL      MYR      Barclays Bank PLC    435,000    11/06/12      142,506         142,767         (261
SELL      MYR      JPMorgan Chase Bank N.A.    1,608,216    11/06/12      525,933         527,815         (1,882
SELL      PLN      JPMorgan Chase Bank N.A.    2,195,528    11/23/12      658,700         686,186         (27,486
BUY      RUB      Barclays Bank PLC    5,103,000    12/13/12-12/14/12      161,729         161,529         (200
BUY      RUB      JPMorgan Chase Bank N.A.    26,520,000    11/06/12-12/14/12      846,258         840,171         (6,087
BUY      RUB      UBS AG    790,000    12/14/12      25,147         25,002         (145
SELL      TRY      Goldman Sachs International    60,000    1/11/13      32,821         33,166         (345
SELL      TRY      JPMorgan Chase Bank N.A.    442,873    1/11/13      243,153         244,807         (1,654
SELL      ZAR      Goldman Sachs International    73,000    11/30/12      8,232         8,385         (153
SELL      ZAR      JPMorgan Chase Bank N.A.    1,564,000    11/30/12      179,340         179,655         (315
                   

 

 

 
                    $ (110,800
                   

 

 

 

Swap Agreements at 10/31/12

 

Expiration      Notional
Amount
       Counterparty    Cash Flows to
Receive
   Cash Flows to Pay    Fair Value  
Asset Derivatives                 
Interest Rate Swaps                 
1/02/14        BRL         500,000         JPMorgan Chase Bank    8.03% (fixed rate)    CDI (floating rate)      $1,954   
1/02/14        BRL         550,000         JPMorgan Chase Bank    10.41% (fixed rate)    CDI (floating rate)      10,997   
1/02/14        BRL         600,000         JPMorgan Chase Bank    9.45% (fixed rate)    CDI (floating rate)      8,136   
1/02/15        BRL         270,000         JPMorgan Chase Bank    8.70% (fixed rate)    CDI (floating rate)      2,585   
1/02/15        BRL         600,000         JPMorgan Chase Bank    8.21% (fixed rate)    CDI (floating rate)      2,614   
1/02/15        BRL         1,000,000         JPMorgan Chase Bank    8.36% (fixed rate)    CDI (floating rate)      5,741   
10/27/16        PLN         917,000         JPMorgan Chase Bank    4.82% (fixed rate)    6-month WIBOR      12,352   
10/19/16        MXN         1,100,000         JPMorgan Chase Bank    5.50% (fixed rate)    TIIE (floating rate)      567   
10/19/16        MXN         3,400,000         JPMorgan Chase Bank    5.47% (fixed rate)    TIIE (floating rate)      1,464   
10/28/16        THB         5,700,000         JPMorgan Chase Bank    3.2% (fixed rate)    6-month THBFIX      2,485   
1/02/17        BRL         200,000         JPMorgan Chase Bank    9.24% (fixed rate)    CDI (floating rate)      2,878   
1/02/17        BRL         300,000         JPMorgan Chase Bank    9.95% (fixed rate)    CDI (floating rate)      7,396   
1/02/17        BRL         340,000         JPMorgan Chase Bank    10.325% (fixed rate)    CDI (floating rate)      10,258   
1/02/17        BRL         800,000         JPMorgan Chase Bank    8.5982% (fixed rate)    CDI (floating rate)      3,320   
3/26/17        PLN         500,000         JPMorgan Chase Bank    4.86% (fixed rate)    6-month WIBOR      7,945   
1/04/21        BRL         650,000         JPMorgan Chase Bank    10.12% (fixed rate)    CDI (floating rate)      16,069   
1/04/17        BRL         900,000         JPMorgan Chase Bank    9.14% (fixed rate)    CDI (floating rate)      11,472   
5/02/17        PLN         1,000,000         JPMorgan Chase Bank    4.95% (fixed rate)    6-month WIBOR      9,962   
1/02/17        BRL         1,800,000         JPMorgan Chase Bank    9.62% (fixed rate)    CDI (floating rate)      35,839   

 

6


Portfolio of Investments (unaudited) – continued

 

Swap Agreements at 10/31/12 - continue

 

Expiration     

Notional
Amount

       Counterparty    Cash Flows to
Receive
   Cash Flows to Pay    Fair Value  
Asset Derivatives – continued                 
Interest Rate Swaps – continued                 
1/02/17        BRL         2,500,000         JPMorgan Chase Bank    10.455% (fixed rate)    CDI (floating rate)      $79,655   
3/17/17        MXN         5,000,000         JPMorgan Chase Bank    5.75% (fixed rate)    TIIE (floating rate)      6,280   
7/05/17        HUF         20,000,000         Barclays Bank PLC    6.56% (fixed rate)    6-month BUBOR      1,933   
6/29/17        HUF         120,000,000         Deutsche Bank    6.45% (fixed rate)    6-month BUBOR      8,861   
9/25/17        THB         5,000,000         JPMorgan Chase Bank    3.30% (fixed rate)    6-month THBFIX      1,897   
9/25/17        HUF         30,000,000         JPMorgan Chase Bank    6.10% (fixed rate)    6-month BUBOR      341   
10/03/17        THB         2,500,000         JPMorgan Chase Bank    3.27% (fixed rate)    6-month THBFIX      857   
1/04/21        BRL         400,000         JPMorgan Chase Bank    9.43% (fixed rate)    CDI (floating rate)      4,770   
1/04/21        BRL         500,000         JPMorgan Chase Bank    9.53% (fixed rate)    CDI (floating rate)      6,482   
1/04/21        BRL         600,000         JPMorgan Chase Bank    9.03% (fixed rate)    CDI (floating rate)      2,207   
1/04/21        BRL         1,500,000         JPMorgan Chase Bank    9.16% (fixed rate)    CDI (floating rate)      9,116   
6/29/22        PLN         530,000         Deutsche Bank    4.74% (fixed rate)    6-month WIBOR      4,760   
                     

 

 

 
                        $281,193   
                     

 

 

 
Liability Derivatives                 
Interest Rate Swaps                 
7/31/17        MYR         850,000         JPMorgan Chase Bank    3.075% (fixed rate)    3-month KLIBOR      $(2,386
8/07/17        MYR         300,000         JPMorgan Chase Bank    3.095% (fixed rate)    3-month KLIBOR      (756
8/17/17        MYR         500,000         JPMorgan Chase Bank    3.23% (fixed rate)    3-month KLIBOR      (218
8/21/17        THB         5,000,000         JPMorgan Chase Bank    3.03% (fixed rate)    6-month THBFIX      (157
9/25/17        MXN         1,000,000         JPMorgan Chase Bank    5.26% (fixed rate)    TIIE (floating rate)      (488
10/02/22        PLN         500,000         JPMorgan Chase Bank    4.36% (fixed rate)    6-month WIBOR      (267
                     

 

 

 
                        $(4,272
                     

 

 

 

At October 31, 2012, the fund had cash collateral of $2,118 to cover any commitments for certain derivative contracts.

See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.

 

7


Supplemental Information

10/31/12 (unaudited)

(1) Investment Valuations

Debt instruments and floating rate loans (other than short-term instruments), including restricted debt instruments, are generally valued at an evaluated or composite bid as provided by a third-party pricing service. Short-term instruments with a maturity at issuance of 60 days or less generally are valued at amortized cost, which approximates market value. Forward foreign currency exchange contracts are generally valued at the mean of bid and asked prices for the time period interpolated from rates provided by a third-party pricing service for proximate time periods. Swap agreements are generally valued at valuations provided by a third-party pricing service. Open-end investment companies are generally valued at net asset value per share. Securities and other assets, including commodity-linked structured notes, generally valued on the basis of information from a third-party pricing service may also be valued at a broker/dealer bid quotation. Values obtained from third-party pricing services can utilize both transaction data and market information such as yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates provided by a third-party pricing service.

The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund’s investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund’s valuation policies and procedures, market quotations are not considered to be readily available for most types of debt instruments and floating rate loans and many types of derivatives. These investments are generally valued at fair value based on information from third-party pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment’s value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund’s net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. The adviser generally relies on third-party pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund’s net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of an investment used to determine the fund’s net asset value may differ from quoted or published prices for the same investment. There can be no assurance that the fund could obtain the fair value assigned to an investment if it were to sell the investment at the same time at which the fund determines its net asset value per share.

Various inputs are used in determining the value of the fund’s assets or liabilities. These inputs are categorized into three broad levels. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fund’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Level 1 includes unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes unobservable inputs, which may include the adviser’s own assumptions in determining the fair value of investments. Other financial instruments are derivative instruments not reflected in total investments, such as forward foreign currency exchange contracts, and swap agreements. The following is a summary of the levels used as of October 31, 2012 in valuing the fund’s assets or liabilities:

 

Investments at Value    Level 1      Level 2      Level 3      Total  
Non-U.S. Sovereign Debt      $—         $22,299,653         $—         $22,299,653   
Foreign Bonds              3,884,095                 3,884,095   
Mutual Funds      10,238,294                         10,238,294   
Total Investments      $10,238,294         $26,183,748         $—         $36,422,042   
Other Financial Instruments                            
Swap Agreements      $—         $276,921         $—         $276,921   
Forward Foreign Currency Exchange Contracts              136,927                 136,927   

For further information regarding security characteristics, see the Portfolio of Investments.

(2) Portfolio Securities

The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows:

 

Aggregate cost      $35,996,510   
Gross unrealized appreciation      737,828   
Gross unrealized depreciation      (312,296
Net unrealized appreciation (depreciation)      $425,532   

 

8


Supplemental Information (unaudited) – continued

 

(3) Transactions in Underlying Affiliated Funds – Affiliated Issuers

An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the fund assumes the following to be an affiliated issuer:

 

Underlying Affiliated Fund    Beginning
Shares/Par
Amount
     Acquisitions
Shares/Par
Amount
     Dispositions
Shares/Par
Amount
     Ending
Shares/Par
Amount
 
MFS Institutional Money Market Portfolio      7,768,366         8,851,445         (6,381,517      10,238,294   
Underlying Affiliated Fund    Realized
Gain (Loss)
     Capital Gain
Distributions
     Dividend
Income
     Ending Value  
MFS Institutional Money Market Portfolio      $—         $—         $4,325         $10,238,294   

(4) Issuer Country Weightings

Issuer country weighting percentages of portfolio holdings based on net assets, as of October 31, 2012, are as follows:

 

Brazil     13.6%   
Turkey     11.0%   
Poland     9.5%   
South Africa     9.3%   
Mexico     9.0%   
Russia     8.6%   
Malaysia     7.1%   
Indonesia     7.0%   
Hungary     6.7%   
Other Countries     18.2%   

The issuer country weighting percentages include both accrued interest amounts and the equivalent exposure from any derivative holdings, if applicable.

 

9


ITEM 2. CONTROLS AND PROCEDURES.

 

(a) Based upon their evaluation of the effectiveness of the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940 (the “Act”)) as conducted within 90 days of the filing date of this Form N-Q, the registrant’s principal financial officer and principal executive officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms.

 

(b) There were no changes in the registrant’s internal controls over financial reporting (as defined in Rule 30a-3(d) under the Act) that occurred during the registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

 

ITEM 3. EXHIBITS.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2): Attached hereto.


Notice

A copy of the Amended and Restated Declaration of Trust, as amended, of the Registrant is on file with the Secretary of State of The Commonwealth of Massachusetts and notice is hereby given that this instrument is executed on behalf of the Registrant by an officer of the Registrant as an officer and not individually and the obligations of or arising out of this instrument are not binding upon any of the Trustees or shareholders individually, but are binding only upon the assets and property of the respective constituent series of the Registrant.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Registrant: MFS SERIES TRUST X

 

By (Signature and Title)*    JOHN M. CORCORAN
  John M. Corcoran, President

Date: December 14, 2012

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

 

By (Signature and Title)*    JOHN M. CORCORAN
  John M. Corcoran, President (Principal Executive Officer)

Date: December 14, 2012

 

By (Signature and Title)*    DAVID L. DILORENZO
  David L. DiLorenzo, Treasurer
(Principal Financial Officer
and Accounting Officer)

Date: December 14, 2012

 

* Print name and title of each signing officer under his or her signature.
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