- Quarterly Schedule of Portfolio Holdings of Registered Management Investment Company (N-Q)

ICAXX Scudder Money Market Series: Institutional Shares (MM)

ICAXX Scudder Money Market Series: Institutional Shares (MM)

Notizie Scudder Money Market Series: Ins - ICAXX

Notizie Scudder Money Market Series: Ins - ICAXX

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED

MANAGEMENT INVESTMENT COMPANY

_______________________________

Investment Company Act file number 811-03495

DWS Money Market Trust

(Exact name of registrant as specified in charter)

345 Park Avenue

New York, NY 10154

(Address of principal executive offices) (Zip code)

Paul Schubert

100 Plaza One

Jersey City, NJ 07311

(Name and address of agent for service)

Registrant's telephone number, including area code: (201) 593-6408

Date of fiscal year end: 12/31

Date of reporting period: 9/30/10

ITEM 1.

SCHEDULE OF INVESTMENTS

Investment Portfolio

as of September 30, 2010 (Unaudited)

DWS Money Market Series

DWS Money Market Series (the “Fund”) is a feeder fund that invests substantially all of its assets in a “master portfolio”, the Cash Management Portfolio (the “Portfolio”) and owns a pro rata interest in the Portfolio’s net assets. At September 30, 2010, the Fund owned approximately 74% of the Portfolio’s outstanding interests. The Portfolio’s Schedule of Investments is set forth below.

		Principal Amount ($)			Value ($)

	Certificates of Deposit and Bank Notes 20.2%
Abbey National Treasury Services PLC:
	0.22%, 10/4/2010		100,000,000		100,000,000
	0.295%, 10/4/2010		200,000,000		200,000,000
	0.41%, 12/7/2010		124,000,000		124,000,000
	0.41%, 12/10/2010		100,000,000		100,000,971
	0.58%, 10/8/2010		50,000,000		50,002,913
Banco Bilbao Vizcaya Argentaria SA:
	0.32%, 11/1/2010		227,000,000		227,000,000
	0.43%, 10/19/2010		118,000,000		118,000,295
	0.455%, 10/25/2010		328,900,000		328,901,095
Bank of Nova Scotia, 0.24%, 10/28/2010			191,700,000		191,700,000
Bank of Tokyo-Mitsubishi UFJ Ltd.:
	0.4%, 10/19/2010		150,000,000		150,000,000
	0.4%, 10/22/2010		25,000,000		25,000,000
	0.54%, 2/2/2011		52,000,000		52,000,000
	0.55%, 1/31/2011		200,000,000		200,000,000
	0.57%, 11/9/2010		100,000,000		100,012,972
	0.6%, 1/24/2011		50,000,000		50,000,000
BNP Paribas:
	0.41%, 3/21/2011		100,000,000		100,004,734
	0.51%, 2/11/2011		50,000,000		50,002,764
	0.52%, 12/29/2010		75,000,000		75,001,845
	0.53%, 4/12/2011		20,000,000		20,002,137
	0.63%, 1/27/2011		250,000,000		250,000,000
Dexia Credit Local, 0.36%, 10/5/2010			138,944,000		138,944,000
Fortis Bank SA:
	0.3%, 12/1/2010		88,500,000		88,500,000
	0.32%, 12/27/2010		200,000,000		200,004,830
Intesa Sanpaolo SpA:
	0.23%, 10/4/2010		100,000,000		100,000,000
	0.25%, 10/4/2010		100,000,000		100,000,000
	0.25%, 10/27/2010		168,500,000		168,500,000
KBC Bank NV:
	0.51%, 10/22/2010		116,000,000		116,000,000
	0.6%, 10/15/2010		50,000,000		50,000,000
	0.65%, 11/15/2010		144,000,000		144,000,000
	0.65%, 11/22/2010		290,000,000		290,000,000
Lloyds TSB Bank PLC:
	0.47%, 10/27/2010		50,000,000		50,000,000
	0.49%, 11/30/2010		200,000,000		200,000,000
	0.53%, 11/29/2010		150,000,000		150,007,354
Mizuho Corporate Bank Ltd.:
	0.28%, 1/7/2011		200,000,000		200,000,000
	0.5%, 10/4/2010		150,000,000		150,000,000
Natixis:
	0.25%, 10/8/2010		20,000,000		20,000,000
	0.38%, 1/4/2011		115,000,000		115,000,000
	0.53%, 10/28/2010		100,000,000		100,000,749
Nordea Bank Finland PLC:
	0.52%, 2/22/2011		50,000,000		50,003,978
	0.52%, 3/22/2011		45,000,000		45,023,565

Rabobank Nederland NV:
	0.46%, 11/1/2010		15,000,000		15,000,065
	0.52%, 1/21/2011		50,000,000		50,007,757
	0.525%, 12/30/2010		89,000,000		89,005,545
	0.55%, 2/1/2011		97,700,000		97,714,781
Royal Bank of Scotland NV:
	0.36%, 1/21/2011		40,000,000		40,000,000
	0.61%, 10/8/2010		114,000,000		114,000,000
Skandinaviska Enskilda Banken AB:
	0.3%, 11/5/2010		50,000,000		50,000,000
	0.31%, 11/5/2010		251,450,000		251,450,000
Societe Generale, 0.435%, 10/29/2010			50,000,000		50,005,633
Standard Chartered Bank, 0.465%, 10/29/2010			136,800,000		136,800,598
Sumitomo Mitsui Banking Corp.:
	0.29%, 12/2/2010		220,000,000		220,000,000
	0.45%, 10/13/2010		150,000,000		150,000,000
Toronto-Dominion Bank:
	0.255%, 10/27/2010		21,500,000		21,500,692
	0.28%, 10/28/2010		6,000,000		6,000,088
UBS AG, 0.56%, 10/1/2010			125,000,000		125,000,000
Unilever Capital Corp., 7.125%, 11/1/2010			9,500,000		9,555,355

Total Certificates of Deposit and Bank Notes (Cost $6,413,654,716)				6,413,654,716
	Commercial Paper 37.1%
Issued at Discount **
Abbey National North America LLC:
	0.47%, 11/15/2010		130,000,000		129,923,625
	0.541%, 12/29/2010		120,000,000		119,839,800
	0.6%, 12/10/2010		18,000,000		17,979,000
Amstel Funding Corp.:
	0.37%, 11/26/2010		74,000,000		73,957,409
	0.38%, 11/22/2010		63,000,000		62,965,420
	0.38%, 11/26/2010		29,500,000		29,482,562
	0.4%, 10/22/2010		95,000,000		94,977,833
Amsterdam Funding Corp., 144A, 0.28%, 10/12/2010			10,000,000		9,999,144
Antalis US Funding Corp.:
	144A, 0.28%, 10/1/2010		87,440,000		87,440,000
	144A, 0.3%, 10/29/2010		4,000,000		3,999,067
	144A, 0.32%, 10/27/2010		37,658,000		37,649,297
	144A, 0.34%, 11/30/2010		26,200,000		26,185,153
	144A, 0.35%, 10/14/2010		42,000,000		41,994,692
	144A, 0.36%, 10/18/2010		60,000,000		59,989,800
Argento Variable Funding:
	144A, 0.28%, 10/7/2010		33,000,000		32,998,460
	144A, 0.31%, 11/1/2010		28,000,000		27,992,526
	144A, 0.37%, 1/20/2011		50,000,000		49,942,958
	144A, 0.39%, 10/26/2010		7,000,000		6,998,104
	144A, 0.47%, 10/21/2010		48,000,000		47,987,467
	144A, 0.48%, 10/20/2010		95,000,000		94,975,933
	144A, 0.48%, 12/1/2010		43,200,000		43,164,864
ASB Finance Ltd.:
	0.42%, 3/14/2011		22,000,000		21,957,907
	0.501%, 2/9/2011		74,300,000		74,164,815
Atlantic Asset Securitization LLC, 144A, 0.25%, 11/2/2010			25,000,000		24,994,444
Atlantis One Funding Corp., 144A, 0.24%, 10/5/2010			175,000,000		174,995,333
Banco Bilbao Vizcaya Argentaria SA:
	0.31%, 10/14/2010		500,000		499,944
	0.34%, 10/4/2010		157,000,000		156,995,552
	0.39%, 10/18/2010		125,000,000		124,976,979
	0.42%, 10/19/2010		148,000,000		147,968,920
	0.45%, 11/18/2010		85,000,000		84,949,000
BNP Paribas Finance, Inc., 0.14%, 10/1/2010			502,463,000		502,463,000
BNZ International Funding Ltd.:
	144A, 0.44%, 2/17/2011		50,000,000		49,915,056
	144A, 0.46%, 1/28/2011		80,000,000		79,878,356
	144A, 0.52%, 1/21/2011		98,500,000		98,340,649
BPCE SA:
	0.47%, 11/8/2010		61,000,000		60,969,737
	0.61%, 11/22/2010		25,000,000		24,977,972
Cancara Asset Securitisation LLC:
	144A, 0.3%, 10/15/2010		90,000,000		89,989,500
	144A, 0.3%, 10/20/2010		74,490,000		74,478,206
	144A, 0.3%, 12/8/2010		50,000,000		49,971,667
Clipper Receivables Co., LLC, 0.28%, 10/12/2010			200,000,000		199,982,889
Commonwealth Bank of Australia, 144A, 0.29%, 11/16/2010			175,000,000		174,935,153
DnB NOR Bank ASA, 0.25%, 12/20/2010			101,600,000		101,543,556
ENI Coordination Center SA:
	0.39%, 10/15/2010		35,000,000		34,994,692
	0.45%, 10/22/2010		100,000,000		99,973,750
	0.51%, 10/29/2010		11,100,000		11,095,597
General Electric Capital Corp.:
	0.23%, 11/8/2010		150,000,000		149,963,583
	0.25%, 11/29/2010		100,000,000		99,959,028
	0.44%, 11/5/2010		100,000,000		99,957,222
General Electric Capital Services, Inc.:
	0.24%, 12/8/2010		25,000,000		24,988,667
	0.25%, 11/30/2010		125,000,000		124,947,917
	0.27%, 11/16/2010		200,000,000		199,931,000
	0.45%, 11/4/2010		50,000,000		49,978,750
General Electric Co., 0.17%, 10/1/2010			200,000,000		200,000,000
Grampian Funding LLC:
	144A, 0.33%, 12/13/2010		24,000,000		23,983,940
	144A, 0.43%, 11/1/2010		189,800,000		189,729,721
	144A, 0.43%, 11/30/2010		66,000,000		65,952,700
	144A, 0.45%, 10/29/2010		137,000,000		136,952,050
	144A, 0.47%, 10/22/2010		76,387,000		76,366,057
	144A, 0.47%, 12/2/2010		35,000,000		34,971,669
	144A, 0.53%, 10/14/2010		216,000,000		215,958,660
	144A, 0.56%, 10/1/2010		43,743,000		43,743,000
Hannover Funding Co., LLC:
	0.47%, 10/18/2010		36,000,000		35,992,010
	0.5%, 10/18/2010		76,000,000		75,982,055
	0.52%, 10/1/2010		16,950,000		16,950,000
Hewlett-Packard Co., 0.2%, 10/4/2010			27,250,000		27,249,546
ING (US) Funding LLC, 0.18%, 10/6/2010			100,000,000		99,997,500
Johnson & Johnson, 144A, 0.25%, 1/20/2011			14,000,000		13,989,208
KBC Financial Products International Ltd.:
	144A, 0.5%, 11/22/2010		11,494,000		11,485,699
	144A, 0.6%, 10/4/2010		35,400,000		35,398,230
	144A, 0.6%, 10/8/2010		26,000,000		25,996,967
Kreditanstalt fuer Wiederaufbau, 144A, 0.18%, 10/28/2010			5,000,000		4,999,325
LMA Americas LLC:
	144A, 0.26%, 10/8/2010		19,869,000		19,867,996
	144A, 0.26%, 10/27/2010		49,059,000		49,049,788
	144A, 0.27%, 10/12/2010		16,700,000		16,698,622
	144A, 0.27%, 10/13/2010		98,700,000		98,691,117
Matchpoint Master Trust:
	0.24%, 10/12/2010		60,000,000		59,995,600
	0.26%, 10/12/2010		77,065,000		77,058,878
	0.35%, 11/10/2010		65,735,000		65,709,436
	0.36%, 11/5/2010		115,000,000		114,959,750
Natixis US Finance Co., LLC, 0.41%, 11/9/2010			55,000,000		54,975,571
Nestle Finance International Ltd., 0.32%, 10/13/2010			100,000,000		99,989,333
New York Life Capital Corp.:
	144A, 0.21%, 10/4/2010		35,000,000		34,999,387
	144A, 0.21%, 10/7/2010		28,000,000		27,999,020
	144A, 0.21%, 10/12/2010		40,211,000		40,208,420
Nieuw Amsterdam Receivables Corp.:
	144A, 0.26%, 10/20/2010		50,000,000		49,993,139
	144A, 0.27%, 10/4/2010		50,000,000		49,998,875
	144A, 0.27%, 10/29/2010		72,727,000		72,711,727
	144A, 0.33%, 10/1/2010		51,187,000		51,187,000
Nordea North America, Inc., 0.49%, 1/20/2011			195,000,000		194,705,388
NRW.Bank:
	0.41%, 10/12/2010		100,000,000		99,987,472
	0.41%, 2/8/2011		25,000,000		24,962,986
	0.42%, 10/6/2010		38,000,000		37,997,783
	0.42%, 10/12/2010		138,000,000		137,982,290
	0.42%, 11/5/2010		200,000,000		199,918,333
	0.43%, 10/22/2010		100,000,000		99,974,917
	0.43%, 3/31/2011		64,250,000		64,111,095
	0.45%, 11/5/2010		100,000,000		99,956,250
	0.5%, 10/15/2010		64,800,000		64,787,400
	0.51%, 10/8/2010		76,000,000		75,992,463
	0.53%, 10/4/2010		92,000,000		91,995,937
PepsiCo, Inc.:
	0.18%, 10/1/2010		50,000,000		50,000,000
	0.18%, 10/6/2010		75,000,000		74,998,125
	0.2%, 11/12/2010		50,000,000		49,988,333
	0.22%, 11/15/2010		100,000,000		99,972,500
Procter & Gamble Co.:
	0.24%, 10/4/2010		65,000,000		64,998,700
	0.24%, 10/8/2010		70,000,000		69,996,733
	0.25%, 10/14/2010		80,000,000		79,992,778
	0.25%, 11/1/2010		50,000,000		49,989,236
	0.27%, 11/17/2010		75,000,000		74,973,562
	0.27%, 1/14/2011		44,000,000		43,965,350
	0.27%, 1/18/2011		100,000,000		99,918,250
Procter & Gamble International Funding SCA:
	144A, 0.17%, 10/28/2010		5,000,000		4,999,363
	144A, 0.19%, 10/1/2010		50,000,000		50,000,000
Romulus Funding Corp.:
	144A, 0.3%, 10/1/2010		11,330,000		11,330,000
	144A, 0.45%, 10/29/2010		14,000,000		13,995,100
	144A, 0.46%, 10/1/2010		32,050,000		32,050,000
Santander Central Hispano Finance Delaware, Inc.:
	0.525%, 11/12/2010		150,000,000		149,908,125
	0.535%, 11/15/2010		147,000,000		146,901,694
Scaldis Capital LLC:
	0.26%, 11/2/2010		100,000,000		99,976,889
	0.27%, 10/4/2010		77,000,000		76,998,267
	0.27%, 10/22/2010		100,000,000		99,984,250
	0.28%, 10/27/2010		20,500,000		20,495,854
	0.32%, 10/4/2010		45,000,000		44,998,800
	0.34%, 10/4/2010		45,200,000		45,198,719
	0.34%, 10/25/2010		24,500,000		24,494,447
	0.34%, 10/27/2010		189,500,000		189,452,355
Shell International Finance BV:
	0.4%, 2/25/2011		50,000,000		49,918,333
	0.45%, 1/5/2011		48,500,000		48,441,800
	0.5%, 2/4/2011		80,400,000		80,259,300
Skandinaviska Enskilda Banken AB:
	0.3%, 10/4/2010		62,000,000		61,998,450
	0.35%, 10/14/2010		30,000,000		29,996,208
	0.355%, 10/8/2010		100,000,000		99,993,097
	0.39%, 10/5/2010		286,200,000		286,187,598
Societe Generale North America, Inc., 0.2%, 10/1/2010			248,967,000		248,967,000
Standard Chartered Bank:
	0.32%, 12/10/2010		100,000,000		99,937,778
	0.42%, 11/5/2010		125,000,000		124,948,958
	0.6%, 10/1/2010		125,000,000		125,000,000
Starbird Funding Corp., 144A, 0.55%, 10/1/2010			75,000,000		75,000,000
Straight-A Funding LLC:
	144A, 0.25%, 11/9/2010		50,072,000		50,058,439
	144A, 0.25%, 12/13/2010		34,584,000		34,566,468
	144A, 0.27%, 11/4/2010		69,554,000		69,536,264
	144A, 0.27%, 11/15/2010		50,368,000		50,351,001
	144A, 0.28%, 11/3/2010		132,419,000		132,385,012
	144A, 0.35%, 10/12/2010		15,000,000		14,998,396
Tasman Funding, Inc.:
	144A, 0.32%, 11/15/2010		10,571,000		10,566,772
	144A, 0.32%, 12/9/2010		31,750,000		31,730,527
	144A, 0.36%, 10/27/2010		20,808,000		20,802,590
Toyota Credit de Puerto Rico:
	0.27%, 10/29/2010		43,000,000		42,990,970
	0.29%, 12/7/2010		10,000,000		9,994,603
Toyota Motor Credit Corp., 0.28%, 12/3/2010			100,000,000		99,951,000
United Parcel Service, Inc., 144A, 0.07%, 10/5/2010			5,000,000		4,999,961
Victory Receivables Corp.:
	144A, 0.25%, 10/12/2010		149,185,000		149,173,604
	144A, 0.259%, 10/13/2010		99,048,000		99,039,416
Walt Disney Co., 0.18%, 10/8/2010			25,000,000		24,999,125

Total Commercial Paper (Cost $11,773,716,365)				11,773,716,365
	Government & Agency Obligations 5.6%
Other Government Related (a) 0.3%
Bank of America NA, FDIC Guaranteed, 1.7%, 12/23/2010			50,000,000		50,149,252
International Bank for Reconstruction & Development:
	0.307% *, 7/13/2011		6,500,000		6,501,562
	0.468% *, 3/4/2011		5,500,000		5,505,523
JPMorgan Chase & Co., FDIC Guaranteed, 2.625%, 12/1/2010			40,000,000		40,150,729

					102,307,066
US Government Sponsored Agencies 3.9%
Federal Home Loan Bank:
	0.124% **, 10/22/2010		1,148,000		1,147,913
	0.145% **, 10/29/2010		16,160,000		16,158,115
	0.25%, 12/21/2010		12,000,000		11,997,430
	0.27%, 10/26/2010		100,000,000		99,998,183
	0.375%, 10/26/2010		17,600,000		17,601,100
	Step-up Coupon, 0.375% to 10/16/2010, 0.5% to 1/16/2011, 0.875% to 4/16/2011, 1.125% to 5/11/2011		100,000,000		100,000,000
	0.43%, 10/5/2010		25,000,000		25,000,916
	0.48%, 10/25/2010		22,500,000		22,502,900
	0.5%, 11/23/2010		20,000,000		20,004,206
	0.52%, 4/12/2011		22,500,000		22,500,000
Federal Home Loan Mortgage Corp.:
	0.187% **, 11/17/2010		181,000,000		180,955,102
	0.219% **, 3/9/2011		150,000,000		149,854,250
	0.238% **, 1/18/2011		35,000,000		34,974,567
	0.27% **, 10/26/2010		72,700,000		72,685,864
	0.326% **, 12/7/2010		20,000,000		19,987,717
	0.326% **, 12/17/2010		20,000,000		19,985,883
	0.336% **, 12/15/2010		40,000,000		39,971,667
Federal National Mortgage Association:
	0.156% *, 7/27/2011		33,800,000		33,781,715
	0.238% **, 1/19/2011		40,000,000		39,970,667
	0.247% **, 12/13/2010		25,000,000		24,987,326
	0.259% **, 10/25/2010		100,000,000		99,982,000
	0.272% **, 11/1/2010		47,350,000		47,338,583
	0.297% **, 1/18/2011		87,500,000		87,420,521
	0.487% **, 4/7/2011		3,235,000		3,226,722
	5.5%, 3/15/2011		33,050,000		33,790,243

					1,225,823,590
US Treasury Obligations 1.4%
US Treasury Bills:
	0.096% **, 10/14/2010		1,282,000		1,281,956
	0.096% **, 10/21/2010		2,448,000		2,447,871
	0.096% **, 11/18/2010		3,503,000		3,502,556
	0.101% **, 10/14/2010		2,000		2,000
	0.11% **, 11/18/2010		420,000		419,938
	0.117% **, 1/20/2011		1,015,000		1,014,640
	0.137% **, 1/20/2011		698,000		697,710
	0.124% **, 12/2/2010		3,151,000		3,150,322
	0.125% **, 1/20/2011		245,000		244,906
	0.127% **, 10/21/2010		2,000,000		1,999,861
	0.13% **, 12/9/2010		9,000,000		8,997,930
	0.13% **, 1/20/2011		2,751,000		2,749,897
	0.13% **, 1/27/2011		9,000,000		8,996,165
	0.132% **, 12/16/2010		436,000		435,880
	0.139% **, 11/4/2010		247,000		246,967
	0.14% **, 11/4/2010		387,000		386,949
	0.14% **, 11/26/2010		5,000,000		4,999,067
	0.145% **, 10/14/2010		35,259,000		35,257,154
	0.145% **, 10/28/2010		1,515,000		1,514,835
	0.147% **, 11/12/2010		869,000		868,853
	0.147% **, 11/18/2010		4,510,000		4,509,128
	0.149% **, 1/6/2011		58,500,000		58,476,356
	0.15% **, 10/14/2010		40,000,000		39,997,833
	0.15% **, 1/27/2011		2,005,000		2,004,014
	0.155% **, 1/13/2011		2,000,000		1,999,105
	0.157% **, 1/13/2011		41,016,000		40,997,634
	0.165% **, 12/9/2010		948,000		947,700
	0.172% **, 1/6/2011		66,981,000		66,949,868
	0.18% **, 2/17/2011		95,000,000		94,933,975
	0.185% **, 1/6/2011		3,621,000		3,619,195
	0.19% **, 11/4/2010		17,878,000		17,874,792
US Treasury Notes:
	1.25%, 11/30/2010		25,000,000		25,039,189
	4.5%, 2/28/2011		14,850,000		15,100,439

					451,664,685

Total Government & Agency Obligations (Cost $1,779,795,341)				1,779,795,341
	Short Term Notes * 15.1%
Abbey National Treasury Services PLC, 0.297%, 12/10/2010			4,500,000		4,497,750
ASB Finance Ltd., 144A, 0.377%, 1/14/2011			50,000,000		50,001,451
Bank of Nova Scotia:
	0.266%, 11/23/2010		35,700,000		35,700,000
	0.37%, 9/12/2011		104,450,000		104,450,000
Barclays Bank PLC:
	144A, 0.407%, 2/7/2011		100,000,000		100,000,000
	0.426%, 10/22/2010		307,450,000		307,450,000
	0.657%, 4/21/2011		240,000,000		240,000,000
Bayerische Landesbank, 0.316%, 10/24/2011			40,000,000		40,000,000
Canadian Imperial Bank of Commerce:
	0.257%, 10/15/2010		50,000,000		50,000,000
	0.257%, 12/13/2010		100,000,000		100,000,000
	0.39%, 11/8/2010		125,000,000		125,000,000
	0.46%, 4/26/2011		199,850,000		199,850,000
	0.51%, 11/22/2010		35,000,000		35,000,000
Dexia Credit Local, 1.624%, 4/18/2011			115,000,000		115,006,643
Intesa Sanpaolo SpA, 0.315%, 10/18/2010			75,000,000		74,999,466
JPMorgan Chase Bank NA, 0.256%, 5/31/2011			191,200,000		191,200,000
Kreditanstalt fuer Wiederaufbau, 0.57%, 3/2/2011			7,860,000		7,871,173
National Australia Bank Ltd.:
	144A, 0.286%, 1/27/2011		160,000,000		160,000,000
	0.317%, 6/10/2011		200,000,000		200,000,000
Natixis:
	0.457%, 12/14/2010		38,000,000		38,000,000
	0.519%, 11/1/2010		235,000,000		235,000,000
	0.53%, 11/5/2010		151,000,000		151,000,000
	0.549%, 12/1/2010		105,000,000		105,000,000
Rabobank Nederland NV:
	0.246%, 11/22/2010		52,500,000		52,500,000
	0.257%, 3/11/2011		50,000,000		50,000,000
	0.316%, 4/26/2011		100,000,000		100,000,000
	0.444%, 8/8/2011		238,200,000		238,200,000
	144A, 0.446%, 9/16/2011		75,000,000		75,000,000
	144A, 1.781%, 4/7/2011		278,000,000		278,000,000
Royal Bank of Canada:
	0.256%, 2/24/2011		50,000,000		50,000,000
	0.257%, 3/10/2011		100,000,000		100,000,000
	0.257%, 3/14/2011		50,000,000		50,000,000
	0.282%, 5/13/2011		100,000,000		100,000,000
	0.41%, 8/12/2011		115,000,000		115,000,000
	0.465%, 11/24/2010		70,000,000		70,000,000
	0.689%, 6/23/2011		12,210,000		12,246,099
	1.131%, 7/29/2011		2,000,000		2,011,268
Societe Generale, 0.33%, 11/16/2010			183,800,000		183,800,000
Standard Chartered Bank, 0.44%, 10/28/2010			34,000,000		34,000,000
Toronto-Dominion Bank:
	0.256%, 10/29/2010		3,000,000		3,000,005
	0.257%, 11/5/2010		5,750,000		5,750,003
	0.257%, 2/4/2011		208,000,000		208,000,000
Westpac Banking Corp.:
	0.28%, 10/12/2010		100,000,000		100,000,000
	0.3%, 1/10/2011		130,000,000		130,000,000
	144A, 0.307%, 12/13/2010		100,000,000		100,000,000
	0.507%, 4/14/2011		65,000,000		65,000,000

Total Short Term Notes (Cost $4,792,533,858)				4,792,533,858
	Time Deposits 15.7%
Bank of Nova Scotia, 0.1%, 10/1/2010			500,000,000		500,000,000
Branch Banking & Trust Co., 0.15%, 10/1/2010			1,000,000,000		1,000,000,000
Citibank NA, 0.19%, 10/1/2010			794,349,000		794,349,000
KBC Bank NV, 0.11%, 10/1/2010			490,000,000		490,000,000
Societe Generale, 0.23%, 10/4/2010			480,000,000		480,000,000
Svenska Handelsbanken AB, 0.15%, 10/1/2010			1,212,600,000		1,212,600,000
Wells Fargo Bank NA, 0.08%, 10/1/2010			500,000,000		500,000,000

Total Time Deposits (Cost $4,976,949,000)				4,976,949,000
	Municipal Bonds and Notes 5.3%
Albany, NY, Industrial Development Agency, Civic Facility Revenue, The College of St. Rose, Series A, 0.29% ***, 7/1/2037, Bank of America NA (b) (c)			13,740,000		13,740,000
Arizona, Health Facilities Authority Revenue, Banner Health System, Series B, 0.27% ***, 1/1/2035, Scotiabank (c)			13,760,000		13,760,000
Blount County, TN, Public Building Authority, Local Government Public Improvement:
	Series E-5-B, 0.27% ***, 6/1/2042, Branch Banking & Trust (c)		32,000,000		32,000,000
	Series E-5-A, 0.28% ***, 6/1/2030, Branch Banking & Trust (c)		35,700,000		35,700,000
California, Health Facilities Financing Authority Revenue, Wells Fargo Stage Trust, Series 72C, 144A, 0.26% ***, 8/15/2039			28,275,000		28,275,000
California, Housing Finance Agency Revenue, Series A, AMT, 0.26% ***, 8/1/2035			9,520,000		9,520,000
Chicago, IL, Midway Airport Revenue, Series B, AMT, 0.33% ***, 1/1/2029, JPMorgan Chase Bank (c)			29,000,000		29,000,000
Cohoes, NY, Industrial Development Agency, Urban Cultural Park Facility Revenue, Eddy Cohoes Project, 0.28% ***, 12/1/2033, Bank of America NA (c)			5,000,000		5,000,000
Colorado, Housing & Finance Authority, Series I-A1, 144A, 0.3% ***, 10/1/2036			21,000,000		21,000,000
Colorado, Housing & Finance Authority, Single Family Program, Series I-A1, 0.41% ***, 11/1/2034			9,800,000		9,800,000
Colorado, Housing Finance Authority, Single Family Mortgage Revenue:
	"I", Series B1, 0.25% ***, 5/1/2038		44,535,000		44,535,000
	"I", Series A-2, 0.3% ***, 5/1/2038		27,145,000		27,145,000
Connecticut, State Health & Educational Facilities Authority Revenue, Danbury Hospital, Series J, 144A, 0.24% ***, 7/1/2036, Wells Fargo Bank NA (c)			20,020,000		20,020,000
Delaware, State Health Facilities Authority Revenue, Bayhealth Medical Center, Inc., Series C, 144A, 0.28% ***, 7/1/2039, Wells Fargo Bank NA (c)			6,240,000		6,240,000
District of Columbia, Metropolitan Washington Airport Authority Systems, Series C-1, 144A, AMT, 0.29% ***, 10/1/2033, Barclays Bank PLC (c)			66,750,000		66,750,000
District of Columbia, University Revenue, Wells Fargo Stage Trust, Series 57C, 144A, 0.27% ***, 4/1/2034			24,995,000		24,995,000
Florida, Jacksonville Electric Systems Revenue, Series 3D-2-B, 0.26% ***, 10/1/2037			23,945,000		23,945,000
Florida, Lee Memorial Heath Systems Hospital Revenue, Series B, 0.31% ***, 4/1/2033, Bank of America NA (c)			17,500,000		17,500,000
Georgia, Private Colleges & Universities Authority Revenue, Emory University, Series B-2, 0.23% ***, 9/1/2035			26,535,000		26,535,000
Illinois, Development Finance Authority Revenue, Chicago Symphony Project, 0.24% ***, 12/1/2033, Bank One NA (c)			11,000,000		11,000,000
Illinois, Educational Facilities Authority Revenues, Field Museum of Natural History, 144A, 0.25% ***, 11/1/2032, Bank of America NA (c)			16,500,000		16,500,000
Illinois, Finance Authority Revenue, "A", 144A, 0.27% ***, 12/1/2042			3,120,000		3,120,000
Illinois, Finance Authority Revenue, Rehabilitation Institute of Chicago, Series B, 0.23% ***, 4/1/2032, JPMorgan Chase Bank (c)			17,600,000		17,600,000
Indiana, IPS Multi-School Building Corp., Series R-885WF, 144A, 0.28% ***, 1/15/2025 (b)			7,530,000		7,530,000
Indiana, State Finance Authority Revenue, Ascension Health Credit Group, Series E-7, 144A, 0.23% ***, 11/15/2033			20,100,000		20,100,000
Indiana, State Finance Authority, Environmental Revenue, Duke Energy Indiana, Inc. Project, Series A-5, 0.28% ***, 10/1/2040, Bank of America NA (c)			9,600,000		9,600,000
Iowa, Finance Authority Health Facilities Revenue, Great River Medical Center Project, 0.34% ***, 6/1/2027, JPMorgan Chase Bank (c)			22,690,000		22,690,000
Iowa, Finance Authority Health Facilities Revenue, Iowa Health Systems, Series E, 0.31% ***, 7/1/2039, Bank of America NA (c)			4,900,000		4,900,000
Kansas, State Department of Transportation Highway Revenue, Series A-2, 0.24% ***, 9/1/2014			28,900,000		28,900,000
Kansas City, MO, Special Obligation, H. ROE Bartle Scout Reservation, Series E, 0.28% ***, 4/15/2034, Bank of America NA (c)			23,900,000		23,900,000
Los Angeles County, CA, Multifamily Housing Authority Revenue, Canyon Country Villas Project, Series H, 0.29% ***, 12/1/2032			15,800,000		15,800,000
Maine, State Housing Authority, Mortgage Purchase Revenue, Series D, AMT, 0.33% ***, 11/15/2042			10,000,000		10,000,000
Massachusetts, State Development Finance Agency Revenue, College of the Holy Cross, Series A, 0.29% ***, 9/1/2037, Bank of America NA (c)			10,765,000		10,765,000
Massachusetts, State Development Finance Agency Revenue, Wentworth Institute of Technology, 0.26% ***, 10/1/2030, RBS Citizens NA (c)			27,355,000		27,355,000
Massachusetts, State General Obligation:
	Series A, 0.3% ***, 9/1/2016		31,845,000		31,845,000
	Series B, 0.32% ***, 3/1/2026		7,400,000		7,400,000
Massachusetts, State Health & Educational Facilities Authority Revenue, Pool Loan Program, Series N, 0.33% ***, 2/1/2038, TD Bank NA (c)			4,385,000		4,385,000
Mississippi, Business Finance Corp., Gulf Opportunity Zone, SG Resources Mississippi LLC Project, 144A, 0.26% ***, 8/1/2035, SunTrust Bank (c)			20,000,000		20,000,000
Missouri, Bi-State Development Agency, Illinois Metropolitan District Revenue, Metrolink, Series A, 0.28% ***, 10/1/2035, JPMorgan Chase Bank (c)			8,000,000		8,000,000
Missouri, State Health & Educational Facilities Authority Revenue, St. Francis Medical Center, Series A, 0.34% ***, 6/1/2026, Bank of America NA (c)			5,885,000		5,885,000
Montgomery County, PA, General Obligation, Series A, 0.27% ***, 8/15/2024			15,775,000		15,775,000
Nashville & Davidson County, TN, Metropolitan Government, Health & Educational Facilities Board Revenue, Vanderbilt University, Series A, 0.22% ***, 10/1/2030			24,150,000		24,150,000
New Jersey, Economic Development Authority Revenue, School Facilities Construction, Series V-3, 144A, 0.23% ***, 3/1/2026, Bank of Nova Scotia (c)			9,150,000		9,150,000
New Jersey, Health Care Facilities Financing Authority Revenue, Children's Specialized Hospital, Series B, 144A, 0.22% ***, 7/1/2036, Wells Fargo Bank NA (c)			14,445,000		14,445,000
New Jersey, Health Care Facilities Financing Authority Revenue, Southern Ocean County Hospital, 144A, 0.22% ***, 7/1/2036, Wells Fargo Bank NA (c)			5,245,000		5,245,000
New York, State Dormitory Authority Revenues, Non-State Supported Debt, St. John's University, Series B-2, 0.23% ***, 7/1/2037, Bank of America NA (c)			32,000,000		32,000,000
New York, State Energy Research & Development Authority Facilities Revenue, Consolidated Edison Co. of New York, Inc.:
	Series A-1, 144A, 0.24% ***, 5/1/2039, Mizuho Corporate Bank (c)		22,800,000		22,800,000
	Series C-3, 144A, AMT, 0.24% ***, 11/1/2039, Mizuho Corporate Bank (c)		24,500,000		24,500,000
	Series A-2, 144A, 0.25% ***, 5/1/2039, Mizuho Corporate Bank (c)		21,100,000		21,100,000
New York, State Housing Finance Agency Revenue, 316 Eleventh Avenue Housing, Series A, AMT, 0.26% ***, 5/15/2041			48,500,000		48,500,000
New York, State Housing Finance Agency Revenue, Helena Housing, Series A, AMT, 0.28% ***, 5/15/2036			55,950,000		55,950,000
New York, State Mortgage Agency, Homeowner Mortgage Revenue:
	Series 135, AMT, 0.32% ***, 4/1/2037		5,600,000		5,600,000
	Series 150, AMT, 0.32% ***, 10/1/2037		33,390,000		33,390,000
New York, Triborough Bridge & Tunnel Authority Revenues, Series C, 144A, 0.29% ***, 1/1/2032			88,445,000		88,445,000
New York, Triborough Bridge & Tunnel Authority Revenues, Wells Fargo Stage Trust, Series 11C, 144A, 0.27% ***, 11/15/2037			24,610,000		24,610,000
New York City, NY, Municipal Finance Authority, Water & Sewer Systems Revenue:
	Series F1A, 0.23% ***, 6/15/2035		30,500,000		30,500,000
	Series F-1, 0.3% ***, 6/15/2033		8,000,000		8,000,000
New York City, NY, Municipal Finance Authority, Water & Sewer Systems Revenue, Second Generation Resolution, Series CC-2, 0.21% ***, 6/15/2038			5,895,000		5,895,000
New York, NY, General Obligation:
	Series C-4, 0.25% ***, 8/1/2020, BNP Paribas (c)		46,150,000		46,150,000
	Series G-4, 0.26% ***, 3/1/2039		45,000,000		45,000,000
	Series H-2, 0.3% ***, 8/1/2014 (b)		14,500,000		14,500,000
	Series I-8, 0.33% ***, 4/1/2036, Bank of America NA (c)		10,870,000		10,870,000
	Series J12, 0.45% ***, 8/1/2029		50,280,000		50,280,000
North Carolina, Capital Facilities Finance Agency, Educational Facilities Revenue, Forsyth Country Day School, 0.27% ***, 12/1/2031, Branch Banking & Trust (c)			12,775,000		12,775,000
North Carolina, Medical Care Commission, Health Care Facilities Revenue, Lenoir Memorial Hospital Project, 144A, 0.27% ***, 4/1/2036, Branch Banking & Trust (c)			2,500,000		2,500,000
Oklahoma, State Turnpike Authority Revenue, Series D, 0.24% ***, 1/1/2028			2,210,000		2,210,000
Sarasota County, FL, Public Hospital District Revenue, Sarasota Memorial Hospital, Series B, 0.28% ***, 7/1/2037, Bank of America NA (c)			26,665,000		26,665,000
Texas, Lower Neches Valley Authority, Industrial Development Corp., Exempt Facilities Revenue, ExxonMobil Corp. Project, Series B, AMT, 0.25% ***, 11/1/2029			29,000,000		29,000,000
Texas, State Veterans Housing Assistance Fund II, Series C, 0.27% ***, 6/1/2031			11,700,000		11,700,000
Texas, University of Houston Revenues, Consolidated Systems, 0.24% ***, 2/15/2024			8,565,000		8,565,000
Travis County, TX, Health Facilities Development Corp., Retirement Facilities Revenue, Longhorn Village Project, Series B, 0.24% ***, 7/1/2037, Bank of Scotland (c)			17,500,000		17,500,000
Tulsa, OK, Airports Improvement Trust, Special Facility Revenue, Bizjet International Sales & Support, Inc., 144A, AMT, 0.29% ***, 8/1/2018, Landesbank Hessen-Thuringen (c)			7,000,000		7,000,000
University of California Revenues, 0.314%, 12/15/2010			40,000,000		39,974,167
University of New Mexico, Systems Improvement Revenues, 0.27% ***, 6/1/2026			41,020,000		41,020,000
University of Texas, Financing Systems Revenues, Series B, 0.22% ***, 8/1/2039			40,275,000		40,275,000
Washington, State Housing Finance Commission, Nonprofit Revenue, St. Thomas School Project, Series B, 0.27% ***, 7/1/2036, Bank of America NA (c)			10,510,000		10,510,000
Wisconsin, Housing & Economic Development Authority, Home Ownership Revenue, Series B, 0.25% ***, 3/1/2033 (d)			15,300,000		15,300,000
Wisconsin, University Hospitals & Clinics Authority Revenue, Series B, 0.24% ***, 4/1/2029, US Bank NA (c)			5,330,000		5,330,000

Total Municipal Bonds and Notes (Cost $1,669,914,167)				1,669,914,167
	Repurchase Agreements 1.0%
Banc of America Securities LLC, 0.24%, dated 9/30/2010, to be repurchased at $57,561,741 on 10/1/2010 (e)			57,561,357		57,561,357
Barclays Capital PLC, 0.22%, dated 9/30/2010, to be repurchased at $200,001,222 on 10/1/2010 (f)			200,000,000		200,000,000
JPMorgan Securities, Inc., 0.23%, dated 9/30/2010, to be repurchased at $12,583,058 on 10/1/2010 (g)			12,582,978		12,582,978
Morgan Stanley & Co., Inc., 0.27%, dated 9/30/2010, to be repurchased at $25,000,188 on 10/1/2010 (h)			25,000,000		25,000,000

Total Repurchase Agreements (Cost $295,144,335)				295,144,335

For information on the Portfolio's policies regarding the valuation of investments and other significant accounting policies, please refer to the Portfolio's most recent semi-annual or annual financial statements.
*	These securities are shown at their current rate as of September 30, 2010. Floating rate securities' yields vary with a designated market index or market rate, such as the coupon-equivalent of the US Treasury bill rate.
**	Annualized yield at time of purchase; not a coupon rate.
***	Variable rate demand notes are securities whose interest rates are reset periodically at market levels. These securities are often payable on demand and are shown at their current rates as of September 30, 2010.
†	The cost for federal income tax purposes was $31,701,707,782.
(a)	Government-backed debt issued by financial companies or government sponsored enterprises.

(b)	Bond is insured by one of these companies:

Insurance Coverage		As a % of Total Investment Portfolio
National Public Finance Guarantee Corp.			0.1

Many insurers who have traditionally guaranteed payment of municipal issues have been downgraded by the major rating agencies.
(c)	Security incorporates a letter of credit from the bank listed.
(d)	Federal and state taxable issue.
(e)	Collateralized by $55,596,324 Federal National Mortgage Association, 4.5%, maturing on 10/1/2040 with a value of $59,288,198.
(f)	Collateralized by $180,306,200 US Treasury Bond, 4.375%, maturing on 2/15/2038 with a value of $204,000,012.
(g)	Collateralized by $17,280,000 US Treasury STRIPS, Zero Coupon, maturing on 2/15/2021 with a value of $12,834,893.
(h)	Collateralized by $24,345,652 Federal National Mortgage Association, 5.0%, maturing on 4/1/2038 with a value of $25,750,001.
144A: Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers.
AMT: Subject to alternative minimum tax.
FDIC: Federal Deposit Insurance Corp.
STRIPS: Separate Trading of Registered Interest and Principal Securities

Fair Value Measurements

Various inputs are used in determining the value of the Portfolio's investments. These inputs are summarized in three broad levels. Level 1 includes quoted prices in active markets for identical securities. Level 2 includes other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, and credit risk). Level 3 includes significant unobservable inputs (including the Portfolio's own assumptions in determining the fair value of investments). The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. Securities held by a money market fund are reflected as Level 2 because the securities are valued at amortized cost (which approximates fair value) and, accordingly, the inputs used to determine value are not quoted prices in an active market.

The following is a summary of the inputs used as of September 30, 2010 in valuing the Portfolio's investments.

	Level 1		Level 2		Level 3		Total
Assets
Investments in Securities (i)	$	—	$	31,406,563,447	$	—	$	31,406,563,447
Repurchase Agreements		—		295,144,335		—		295,144,335
Total	$	—	$	31,701,707,782	$	—	$	31,701,707,782

There have been no significant transfers in and out of Level 1 and Level 2 fair value measurements during the period ended September 30, 2010.
(i)	See Investment Portfolio for additional detailed categorizations.

ITEM 2.	CONTROLS AND PROCEDURES

	(a) The Chief Executive and Financial Officers concluded that the Registrant’s Disclosure Controls and Procedures are effective based on the evaluation of the Disclosure Controls and Procedures as of a date within 90 days of the filing date of this report.

	(b) There have been no changes in the registrant’s internal control over financial reporting that occurred during the registrant’s last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal controls over financial reporting.

ITEM 3.	EXHIBITS

	Certification pursuant to Rule 30a-2(a) under the Investment Company Act of 1940 (17 CFR 270.30a-2(a)) is filed and attached hereto as Exhibit 99.CERT.

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:	DWS Money Market Series, a series of DWS Money Market Trust

By:	/s/Michael G. Clark Michael G. Clark President

Date:	November 23, 2010

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:	/s/Michael G. Clark Michael G. Clark President

Date:	November 23, 2010



By:	/s/Paul Schubert Paul Schubert Chief Financial Officer and Treasurer

Date:	November 23, 2010

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% of

Net Assets

Total Investment Portfolio (Cost $31,701,707,782) †

31,701,707,782

Other Assets and Liabilities, Net

Net Assets

31,709,981,589