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        811-5970

Cash        Account Trust

(Exact name of registrant as specified in        charter)

 

222        South Riverside Plaza

Chicago, IL 60606

(Address of principal executive offices)                    (Zip code)

 

Paul Schubert

345 Park Avenue

New York, NY 10154

(Name and address of agent for        service)

Registrant's telephone number, including area        code:(212) 454-7190

Date of fiscal year end:04/30

Date of reporting        period:01/31/08

 

ITEM 1.        SCHEDULE OF INVESTMENTS

 

| Investment Portfolio | **as of January 31, 2008 (Unaudited)** |
|----------------------|----------------------------------------|

         

 

**Cash        Account Trust-Money Market Portfolio**

 

|                                                                      | **Principal****Amount ($)**                                             |       | **Value                        ($)** |
|---------------------------------------------------------------------------|-------------------------------------------------------------------------|------------|--------------------------------------|
|                                                                           |
|                                                                      | **Certificates of Deposit and Bank Notes                        27.2%** |       |
| ABN AMRO Bank NV, 3.85%, 4/22/2008                                        |                                                                    | 34,500,000 |                                 | 34,502,275 |
| Banco Santander Central Hispano SA:                                       |                                                                    |
|                                                                      | 3.91%, 5/16/2008                                                        |       | 35,000,000                           |   | 35,003,023 |
|                                                                      | 4.22%, 6/16/2008                                                        |       | 40,000,000                           |   | 40,010,393 |
|                                                                      | 4.36%, 4/11/2008                                                        |       | 15,000,000                           |   | 15,001,731 |
|                                                                      | 4.91%, 2/1/2008                                                         |       | 15,000,000                           |   | 15,000,000 |
|                                                                      | 4.99%, 2/1/2008                                                         |       | 45,550,000                           |   | 45,550,000 |
| Bank of Scotland PLC:                                                     |                                                                    |
|                                                                      | 4.5%, 11/19/2008                                                        |       | 20,000,000                           |   | 20,000,000 |
|                                                                      | 4.93%, 10/9/2008                                                        |       | 10,000,000                           |   | 10,000,000 |
| Bank of Tokyo-Mitsubishi-UFJ Ltd., 5.3%,                        2/21/2008 |                                                                    | 35,000,000 |                                 | 35,000,000 |
| Bank Scotland PLC:                                                        |                                                                    |
|                                                                           |                                                                         |            |                                      |  |  |  |  |

|                                                                                         | 4.77%, 4/25/2008             |              | 15,000,000 |       | 15,000,000 |
|----------------------------------------------------------------------------------------------|------------------------------|-------------------|------------|------------|------------|
|                                                                                         | 4.91%, 4/23/2008             |              | 20,000,000 |       | 20,002,639 |
| Barclays Bank PLC:                                                                           |                         |
|                                                                                         | 3.15%, 7/30/2008             |              | 45,480,000 |       | 45,480,000 |
|                                                                                         | 5.2%, 4/9/2008               |              | 22,200,000 |       | 22,200,000 |
|                                                                                         | 5.5%, 3/12/2008              |              | 38,000,000 |       | 38,000,000 |
| BNP Paribas:                                                                                 |                         |
|                                                                                         | 4.4%, 7/7/2008               |              | 20,000,000 |       | 20,000,853 |
|                                                                                         | 5.1%, 3/13/2008              |              | 35,000,000 |       | 35,000,000 |
| Calyon:                                                                                      |                         |
|                                                                                         | 3.85%, 4/22/2008             |              | 34,000,000 |       | 34,047,587 |
|                                                                                         | 4.03%, 7/14/2008             |              | 15,000,000 |       | 15,000,000 |
|                                                                                         | 4.8%, 3/25/2008              |              | 22,000,000 |       | 22,000,000 |
| Canadian Imperial Bank of Commerce, 4.326%,                        3/17/2008                 |                         | 45,000,000        |       | 45,000,391 |
| Chase Bank USA NA, 5.15%, 2/12/2008                                                          |                         | 22,000,000        |       | 22,000,000 |
| Citibank NA, 5.3%, 2/20/2008                                                                 |                         | 15,000,000        |       | 15,000,000 |
| Credit Agricole SA, 4.61%, 4/7/2008                                                          |                         | 45,900,000        |       | 45,900,832 |
| Credit Industrial et Commercial:                                                             |                         |
|                                                                                         | 4.135%, 4/15/2008            |              | 25,000,000 |       | 25,000,254 |
|                                                                                         | 4.615%, 4/7/2008             |              | 30,000,000 |       | 30,000,272 |
| JPMorgan Chase Bank NA:                                                                      |                         |
|                                                                                         | 3.05%, 4/25/2008             |              | 80,000,000 |       | 80,000,000 |
|                                                                                         | 4.75%, 6/10/2008             |              | 22,000,000 |       | 22,000,000 |
| KBC Bank NV:                                                                                 |                         |
|                                                                                         | 3.15%, 3/4/2008              |              | 22,720,000 |       | 22,720,365 |
|                                                                                         | 5.7%, 3/6/2008               |              | 21,300,000 |       | 21,301,939 |
| Landesbank Baden Wurttemberg, 5.4%, 3/18/2008                                                |                         | 15,000,000        |       | 15,000,000 |
| Landesbank Hessen-Thuringen Girozentrale, 3.1%,                        5/5/2008              |                         | 47,900,000        |       | 47,900,000 |
| Mizuho Corporate Bank:                                                                       |                         |
|                                                                                         | 3.11%, 4/1/2008              |              | 48,000,000 |       | 48,000,000 |
|                                                                                         | 3.35%, 4/24/2008             |              | 45,350,000 |       | 45,350,000 |
|                                                                                         | 4.93%, 2/19/2008             |              | 50,000,000 |       | 50,000,000 |
| Natixis SA, 3.1%, 5/23/2008                                                                  |                         | 15,000,000        |       | 15,000,000 |
| Norinchukin Bank, 4.37%, 4/11/2008                                                           |                         | 21,000,000        |       | 21,000,000 |
| UBS AG:                                                                                      |                         |
|                                                                                         | 3.33%, 5/23/2008             |              | 51,000,000 |       | 51,000,000 |
|                                                                                         | 4.03%, 7/11/2008             |              | 10,580,000 |       | 10,581,392 |
|                                                                                         | 4.3%, 7/8/2008               |              | 70,000,000 |       | 70,000,000 |
|                                                                                         | 5.38%, 3/18/2008             |              | 15,000,000 |       | 15,042,290 |
|                                                                                         | 5.39%, 3/18/2008             |              | 45,000,000 |       | 45,000,000 |
|                                                                                         | 5.48%, 3/7/2008              |              | 40,000,000 |       | 40,000,000 |
|                                                                                              |
| **Total Certificates of Deposit and Bank                        Notes**(Cost $1,319,596,236) |                         | **1,319,596,236** |
|                                                                                         | **Commercial Paper** 41.4%** |              |
| AstraZeneca PLC:                                                                             |                         |
|                                                                                         | 3.67%, 7/17/2008             |              | 20,000,000 |       | 19,659,506 |
|                                                                                         | 4.05%, 7/7/2008              |              | 18,840,000 |       | 18,507,239 |
|                                                                                         | 4.205%, 6/3/2008             |              | 20,000,000 |       | 19,712,658 |
|                                                                                         | 4.95%, 4/7/2008              |              | 32,000,000 |       | 31,709,600 |
| AT&T, Inc., 3.8%, 2/28/2008                                                              |                         | 25,000,000        |       | 24,928,750 |
| Atlantic Asset Securitization Corp., 3.35%,                        2/8/2008                  |                         | 25,000,000        |       | 24,983,715 |
| Bank of America Corp., 4.865%, 4/11/2008                                                     |                         | 25,000,000        |       | 24,763,507 |
| BP Capital Markets PLC:                                                                      |                         |
|                                                                                         | 4.45%, 3/28/2008             |              | 35,000,000 |       | 34,757,722 |
|                                                                                         | 4.47%, 4/11/2008             |              | 12,400,000 |       | 12,292,223 |
| Cafco LLC, 5.35%, 2/12/2008                                                                  |                         | 45,000,000        |       | 44,926,438 |
| Cancara Asset Securitization LLC:                                                            |                         |
|                                                                                              |                              |                   |            |            |            |  |  |  |

|                                                                                    | 4.87%, 2/8/2008   |       | 20,000,000 |       | 19,981,061 |
|-----------------------------------------------------------------------------------------|-------------------|------------|------------|------------|------------|
|                                                                                    | 5.75%, 2/1/2008   |       | 40,000,000 |       | 40,000,000 |
| Chariot Funding LLC:                                                                    |              |
|                                                                                    | 3.11%, 3/10/2008  |       | 10,000,000 |       | 9,967,172  |
|                                                                                    | 3.65%, 2/14/2008  |       | 70,000,000 |       | 69,907,736 |
| Ciesco LLC:                                                                             |              |
|                                                                                    | 5.43%, 2/14/2008  |       | 25,000,000 |       | 24,950,979 |
|                                                                                    | 5.45%, 2/14/2008  |       | 25,000,000 |       | 24,950,799 |
| CVS Corp., 3.4%, 2/1/2008                                                               |              | 12,500,000 |       | 12,500,000 |
| Dexia Delaware LLC, 5.025%, 3/3/2008                                                    |              | 10,000,000 |       | 9,956,729  |
| Diageo Capital PLC, 3.4%, 2/1/2008                                                      |              | 15,000,000 |       | 15,000,000 |
| Eksportfinans AS, 4.61%, 4/21/2008                                                      |              | 30,000,000 |       | 29,692,667 |
| Electricite de France, 4.4%, 3/5/2008                                                   |              | 15,000,000 |       | 14,939,500 |
| General Electric Capital Corp.:                                                         |              |
|                                                                                    | 2.75%, 9/19/2008  |       | 24,000,000 |       | 23,576,500 |
|                                                                                    | 3.0%, 5/27/2008   |       | 35,000,000 |       | 34,661,667 |
|                                                                                    | 3.92%, 9/30/2008  |       | 25,000,000 |       | 24,341,222 |
|                                                                                    | 4.62%, 4/21/2008  |       | 15,000,000 |       | 14,846,000 |
| Giro Balanced Funding Corp., 3.31%, 3/6/2008                                            |              | 47,000,000 |       | 46,853,073 |
| GlaxoSmithKline Finance PLC, 4.58%, 3/26/2008                                           |              | 26,400,000 |       | 26,218,632 |
| Grampian Funding LLC:                                                                   |              |
|                                                                                    | 4.865%, 2/11/2008 |       | 15,000,000 |       | 14,979,729 |
|                                                                                    | 5.16%, 2/5/2008   |       | 33,000,000 |       | 32,981,080 |
| Greenwich Capital Holdings, Inc.:                                                       |              |
|                                                                                    | 3.32%, 4/21/2008  |       | 80,000,000 |       | 79,409,778 |
|                                                                                    | 3.34%, 4/24/2008  |       | 21,300,000 |       | 21,135,978 |
|                                                                                    | 3.72%, 5/23/2008  |       | 20,000,000 |       | 19,768,533 |
|                                                                                    | 3.8%, 5/23/2008   |       | 10,000,000 |       | 9,881,778  |
|                                                                                    | 4.81%, 5/28/2008  |       | 21,900,000 |       | 21,557,648 |
| Home Depot, Inc.:                                                                       |              |
|                                                                                    | 3.4%, 2/1/2008    |       | 15,000,000 |       | 15,000,000 |
|                                                                                    | 3.65%, 2/5/2008   |       | 13,500,000 |       | 13,494,525 |
| KBC Financial Products International Ltd.:                                              |              |
|                                                                                    | 4.22%, 7/11/2008  |       | 22,300,000 |       | 21,879,137 |
|                                                                                    | 4.97%, 2/12/2008  |       | 50,000,000 |       | 49,924,070 |
| Kellogg Co.:                                                                            |              |
|                                                                                    | 3.3%, 3/31/2008   |       | 5,000,000  |       | 4,972,958  |
|                                                                                    | 3.65%, 2/22/2008  |       | 2,500,000  |       | 2,494,677  |
|                                                                                    | 4.55%, 2/13/2008  |       | 14,500,000 |       | 14,478,008 |
| Kitty Hawk Funding Corp., 4.87%, 2/14/2008                                              |              | 40,000,000 |       | 39,929,656 |
| Kraft Foods, Inc., 3.3%, 2/1/2008                                                       |              | 14,000,000 |       | 14,000,000 |
| Liberty Street Funding, 5.4%, 2/19/2008                                                 |              | 45,000,000 |       | 44,878,500 |
| Market Street Funding Corp., 3.35%, 2/1/2008                                            |              | 7,000,000  |       | 7,000,000  |
| Natexis Banques Populaires US Finance Co., LLC, 4.745%,                        2/6/2008 |              | 20,000,000 |       | 19,986,820 |
| Nestle Capital Corp.:                                                                   |              |
|                                                                                    | 2.49%, 12/17/2008 |       | 15,000,000 |       | 14,668,000 |
|                                                                                    | 4.3%, 10/31/2008  |       | 5,000,000  |       | 4,836,958  |
|                                                                                    | 4.75%, 3/7/2008   |       | 25,000,000 |       | 24,884,549 |
| Nieuw Amsterdam Receivables Corp., 3.2%,                        2/1/2008                |              | 49,000,000 |       | 49,000,000 |
| Nissan Motor Acceptance Corp.:                                                          |              |
|                                                                                    | 3.65%, 2/15/2008  |       | 20,000,000 |       | 19,971,611 |
|                                                                                    | 3.8%, 2/7/2008    |       | 8,000,000  |       | 7,994,933  |
|                                                                                    | 4.5%, 2/8/2008    |       | 13,000,000 |       | 12,988,625 |
|                                                                                    | 4.5%, 2/12/2008   |       | 3,000,000  |       | 2,995,875  |
| North Sea Funding LLC, 3.81%, 2/1/2008                                                  |              | 45,000,000 |       | 45,000,000 |
| Old Line Funding LLC:                                                                   |              |
|                                                                                    | 3.65%, 2/15/2008  |       | 15,000,000 |       | 14,978,708 |
|                                                                                         |                   |            |            |            |            |  |

|                                                                                     | 5.85%, 2/8/2008             |              | 30,000,000 |        | 29,965,875 |
|------------------------------------------------------------------------------------------|-----------------------------|-------------------|------------|-------------|------------|
| Pfizer, Inc.:                                                                            |                        |
|                                                                                     | 4.4%, 5/14/2008             |              | 30,000,000 |        | 29,622,333 |
|                                                                                     | 4.41%, 5/16/2008            |              | 10,000,000 |        | 9,871,375  |
|                                                                                     | 4.53%, 4/28/2008            |              | 22,000,000 |        | 21,759,155 |
| Procter & Gamble International Funding                        SCA:                   |                        |
|                                                                                     | 4.47%, 2/14/2008            |              | 7,500,000  |        | 7,487,894  |
|                                                                                     | 4.5%, 2/5/2008              |              | 14,000,000 |        | 13,993,000 |
| Ranger Funding Corp., 3.25%, 4/10/2008                                                   |                        | 92,680,000        |       | 92,102,681  |
| Romulus Funding Corp, 4.65%, 2/15/2008                                                   |                        | 15,000,000        |       | 14,972,875  |
| Royal Bank of Scotland Group PLC, 4.25%,                        6/9/2008                 |                        | 25,000,000        |       | 24,619,271  |
| Scaldis Capital LLC, 4.15%, 2/15/2008                                                    |                        | 12,500,000        |       | 12,479,826  |
| Sheffield Receivables Corp., 3.55%, 2/5/2008                                             |                        | 20,000,000        |       | 19,992,111  |
| Societe Generale North America, Inc.:                                                    |                        |
|                                                                                     | 3.88%, 4/15/2008            |              | 54,300,000 |        | 53,866,927 |
|                                                                                     | 4.0%, 7/7/2008              |              | 20,000,000 |        | 19,651,111 |
|                                                                                     | 4.775%, 2/1/2008            |              | 15,000,000 |        | 15,000,000 |
| Swedbank AB, 4.73%, 2/29/2008                                                            |                        | 18,000,000        |       | 17,933,780  |
| Thunder Bay Funding LLC, 3.3%, 3/10/2008                                                 |                        | 37,806,000        |       | 37,674,309  |
| Toyota Motor Credit Corp.:                                                               |                        |
|                                                                                     | 3.24%, 4/25/2008            |              | 12,500,000 |        | 12,405,500 |
|                                                                                     | 4.29%, 4/7/2008             |              | 35,000,000 |        | 34,724,725 |
|                                                                                     | 4.5%, 2/12/2008             |              | 28,350,000 |        | 28,311,019 |
|                                                                                     | 4.61%, 4/25/2008            |              | 25,000,000 |        | 24,731,083 |
|                                                                                     | 4.84%, 3/31/2008            |              | 20,000,000 |        | 19,841,356 |
| Tulip Funding Corp, 4.15%, 2/19/2008                                                     |                        | 20,000,000        |       | 19,958,500  |
| United Parcel Service, Inc., 4.18%, 5/30/2008                                            |                        | 10,000,000        |       | 9,861,828   |
| Variable Funding Capital Co., LLC, 4.29%,                        2/4/2008                |                        | 22,000,000        |       | 21,992,135  |
| Victory Receivables Corp.:                                                               |                        |
|                                                                                     | 5.11%, 2/8/2008             |              | 21,543,000 |        | 21,521,595 |
|                                                                                     | 5.5%, 2/15/2008             |              | 30,000,000 |        | 29,935,833 |
| Windmill Funding Corp., 5.35%, 2/1/2008                                                  |                        | 20,000,000        |       | 20,000,000  |
|                                                                                          |
| **Total Commercial Paper**(Cost                        $2,007,933,326)                   |                        | **2,007,933,326** |
|                                                                                     | **Short Term Notes* 21.5%** |              |
| Alliance & Leicester PLC, 4.535%, 8/7/2008                                           |                        | 50,000,000        |       | 50,000,000  |
| American Express Bank FSB, 4.475%, 2/8/2008                                              |                        | 20,000,000        |       | 20,000,000  |
| Anz National (International) Ltd., 144A, 4.231%,                        2/9/2009         |                        | 12,500,000        |       | 12,500,000  |
| Australia & New Zealand Banking Group Ltd., 3.922%,                        8/22/2008 |                        | 20,000,000        |       | 20,000,000  |
| Bank of America NA, 3.065%, 5/16/2008                                                    |                        | 15,000,000        |       | 15,000,000  |
| Bank of Ireland, 3.934%, 8/19/2008                                                       |                        | 100,000,000       |       | 100,000,000 |
| Bank Scotland PLC, 4.614%, 2/6/2009                                                      |                        | 30,000,000        |       | 30,000,000  |
| BMW (UK) Capital PLC, 4.256%, 8/14/2008                                                  |                        | 20,000,000        |       | 20,000,000  |
|                                                                                     |                        |
| BNP Paribas:                                                                             |                        |
|                                                                                     | 3.285%, 8/25/2008           |              | 35,000,000 |        | 35,000,000 |
|                                                                                     | 4.079%, 2/13/2009           |              | 15,000,000 |        | 15,000,000 |
| Canadian Imperial Bank of Commerce:                                                      |                        |
|                                                                                     | 3.16%, 6/9/2008             |              | 14,000,000 |        | 14,000,000 |
|                                                                                     | 3.991%, 7/18/2008           |              | 15,000,000 |        | 14,986,580 |
| Commonwealth Bank of Australia, 3.793%,                        9/23/2008                 |                        | 30,000,000        |       | 30,000,000  |
| Credit Agricole SA:                                                                      |                        |
|                                                                                     | 144A, 4.175%, 2/13/2009     |              | 40,000,000 |        | 40,000,000 |
|                                                                                     | 4.853%, 7/22/2008           |              | 35,000,000 |        | 35,000,000 |
| DNB NOR Bank ASA, 3.376%, 9/24/2008                                                      |                        | 30,000,000        |       | 30,000,000  |
| General Electric Capital Corp., 5.171%,                        3/4/2008                  |                        | 45,000,000        |       | 45,002,813  |
| HSBC Bank USA NA, 4.246%, 8/14/2008                                                      |                        | 165,000,000       |       | 165,000,860 |
|                                                                                          |                             |                   |            |             |            |  |  |  |

| HSBC Finance Corp., 4.55%, 8/6/2008                                                                                                       |                                                                                                                                                                                                                                                                               | 30,000,000        |                                 | 30,000,000     |
|-------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------|--------------------------------------|----------------|
| Intesa Bank Ireland PLC, 3.386%, 8/22/2008                                                                                                |                                                                                                                                                                                                                                                                               | 21,000,000        |                                 | 21,000,000     |
| Marshall & Ilsley Bank, 4.236%, 8/14/2008                                                                                             |                                                                                                                                                                                                                                                                               | 35,000,000        |                                 | 35,000,000     |
| Metropolitan Life Global Funding I, 144A, 4.247%,                        2/9/2009                                                         |                                                                                                                                                                                                                                                                               | 7,500,000         |                                 | 7,500,000      |
| Mitsubishi UFJ Trust & Banking Corp., 4.071%,                        2/19/2008                                                        |                                                                                                                                                                                                                                                                               | 30,000,000        |                                 | 30,000,000     |
| Nordea Bank AB, 4.431%, 9/8/2008                                                                                                          |                                                                                                                                                                                                                                                                               | 30,000,000        |                                 | 30,000,000     |
| Pyxis Master Trust, Series 2007-6, 5.17%,                        3/6/2008                                                                 |                                                                                                                                                                                                                                                                               | 19,000,000        |                                 | 19,000,000     |
| Skandinaviska Enskilda Banken:                                                                                                            |                                                                                                                                                                                                                                                                               |
|                                                                                                                                      | 4.009%, 8/19/2008                                                                                                                                                                                                                                                                  |              | 25,000,000                           |           | 25,000,000 |
|                                                                                                                                      | 4.441%, 8/8/2008                                                                                                                                                                                                                                                                   |              | 50,000,000                           |           | 50,000,000 |
| SunTrust Bank, Atlanta, 3.893%, 4/21/2008                                                                                                 |                                                                                                                                                                                                                                                                               | 15,000,000        |                                 | 14,993,107     |
| UniCredito Italiano Bank (Ireland) PLC:                                                                                                   |                                                                                                                                                                                                                                                                               |
|                                                                                                                                      | 4.339%, 8/13/2008                                                                                                                                                                                                                                                                  |              | 25,000,000                           |           | 25,000,000 |
|                                                                                                                                      | 4.461%, 8/8/2008                                                                                                                                                                                                                                                                   |              | 42,000,000                           |           | 42,000,000 |
| UniCredito Italiano SpA, 4.621%, 5/2/2008                                                                                                 |                                                                                                                                                                                                                                                                               | 22,000,000        |                                 | 21,999,993     |
|                                                                                                                                           |
| **Total Short Term Notes**(Cost                        $1,042,983,353)                                                                    |                                                                                                                                                                                                                                                                               | **1,042,983,353** |
|                                                                                                                                      | **Master Notes* 2.7%**                                                                                                                                                                                                                                                             |              |
| Citigroup Global Markets, Inc., 3.225%, 2/1/2008                        (a)                                                               |                                                                                                                                                                                                                                                                               | 82,000,000        |                                 | 82,000,000     |
| The Bear Stearns Companies, Inc., 3.725%, 2/1/2008                        (a)                                                             |                                                                                                                                                                                                                                                                               | 50,000,000        |                                 | 50,000,000     |
|                                                                                                                                           |
| **Total Master Notes**(Cost                        $132,000,000)                                                                          |                                                                                                                                                                                                                                                                               | **132,000,000**   |
|                                                                                                                                      | **Promissory Note 1.8%**                                                                                                                                                                                                                                                           |              |
| Merrill Lynch & Co., Inc., 5.16% *, 3/4/2008 (Cost                        $85,000,000)                                                |                                                                                                                                                                                                                                                                               | 85,000,000        |                                 | **85,000,000** |
|                                                                                                                                      | **Government & Agency Obligations                        2.6%**                                                                                                                                                                                                                |              |
| **US Government Sponsored Agencies 2.6%**                                                                                                 |
| Federal Home Loan Bank:                                                                                                                   |                                                                                                                                                                                                                                                                               |
|                                                                                                                                      | 3.96%**, 4/9/2008                                                                                                                                                                                                                                                                  |              | 24,000,000                           |           | 23,820,480 |
|                                                                                                                                      | 4.1%**, 7/22/2008                                                                                                                                                                                                                                                                  |              | 12,000,000                           |           | 11,764,933 |
| Federal Home Loan Mortgage Corp.:                                                                                                         |                                                                                                                                                                                                                                                                               |              |                                 |           |
| 4.15%**, 6/9/2008                                                                                                                         |                                                                                                                                                                                                                                                                               | 12,000,000        |                                 | 11,821,550     |
| 4.27%**,                        3/20/2008                                                                                                 |                                                                                                                                                                                                                                                                               | 20,000,000        |                                 | 19,886,133     |
| Federal National Mortgage Association:                                                                                                    |                                                                                                                                                                                                                                                                               |
|                                                                                                                                      | 3.73%**, 5/29/2008                                                                                                                                                                                                                                                                 |              | 15,000,000                           |           | 14,816,608 |
|                                                                                                                                      | 4.2%**, 4/18/2008                                                                                                                                                                                                                                                                  |              | 18,000,000                           |           | 17,838,300 |
|                                                                                                                                      | 4.235%**, 3/19/2008                                                                                                                                                                                                                                                                |              | 24,000,000                           |           | 23,867,304 |
|                                                                                                                                           |
| **Total Government & Agency Obligations**(Cost $123,815,308)                                                                          |                                                                                                                                                                                                                                                                               | **123,815,308**   |
|                                                                                                                                      | **Repurchase Agreements 5.8%**                                                                                                                                                                                                                                                     |              |
| BNP Paribas, 3.0%, dated 1/31/2008, to be repurchased at                        $50,004,167 on 2/1/2008 (b)                               |                                                                                                                                                                                                                                                                               | 50,000,000        |                                 | 50,000,000     |
| JPMorgan Securities, Inc., 3.0%, dated 1/31/2008, to be                        repurchased at $50,004,167 on 2/1/2008 (c)                 |                                                                                                                                                                                                                                                                               | 50,000,000        |                                 | 50,000,000     |
| Merrill Lynch Government Securities, Inc., 2.8%, dated                        1/31/2008, to be repurchased at $35,002,722 on 2/1/2008 (d) |                                                                                                                                                                                                                                                                               | 35,000,000        |                                 | 35,000,000     |
| The Bear Stearns & Co., Inc., 3.0%, dated 1/31/2008,                        to be repurchased at $144,125,894 on 2/1/2008 (e)         |                                                                                                                                                                                                                                                                               | 144,113,885       |                                 | 144,113,885    |
|                                                                                                                                           |
| **Total Repurchase Agreements**(Cost $279,113,885)                                                                                        |                                                                                                                                                                                                                                                                               | **279,113,885**   |
|                                                                                                                                      | **%                        of****Net Assets**                                                                                                                                                                                                                                      |              | **Value                        ($)** |
|                                                                                                                                           |
| **Total Investment Portfolio**(Cost $4,990,442,108)                                                                                       | 103.0                                                                                                                                                                                                                                                                              |              | **4,990,442,108**                    |
| **Other Assets and Liabilities, Net**                                                                                                     | (3.0)                                                                                                                                                                                                                                                                              |              | **(145,034,985)**                    |
|                                                                                                                                           |
| **Net Assets**                                                                                                                            | 100.0                                                                                                                                                                                                                                                                              |              | **4,845,407,123**                    |
|                                                                                                                                      | *For information on the Fund's policies regarding the                        valuation of investments and other significant accounting policies, please                        refer to the Fund's most recent semi-annual or annual financial                        statements.* |
|                                                                                                                                           |                                                                                                                                                                                                                                                                                    |                   |                                      |                |  |  |  |  |  |

| ***   | *Floating rate notes are securities whose yields vary                        with a designated market index or market rate, such as the                        coupon-equivalent of the US Treasury bill rate. These securities are shown                        at their current rate as of January 31, 2008.* |
|-------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ****  | *Annualized yield at time of purchase; not a coupon                        rate.*                                                                                                                                                                                                                               |
| *(a)* | *Reset date; not a maturity date*                                                                                                                                                                                                                                                                               |
| *(b)* | *Collateralized by:*                                                                                                                                                                                                                                                                                            |

 

| ***Principal***              |                                    |           | ***Maturity***       | ***Collateral*** |
|------------------------------|-----------------------------------------|----------------|----------------------|------------------|
| ***Amount ($)***             | ***Security***                          | ***Rate (%)*** | ***Date***           | ***Value ($)***  |
| *49,410,846*                 | *Federal Home Loan Mortgage Corp.*      | *5.485-5.93*   | *1/1/2037-11/1/2037* | *50,747,184*     |
| *245,655*                    | *Federal National Mortgage Association* | *5.348*        | *11/1/2035*          | *252,816*        |
| ***Total Collateral Value*** |                                    |           | ***51,000,000***     |

 

| *(c)* | *Collateralized by $50,468,895 Government National                        Mortgage Association, with various coupon rates from 3.11-5.786%, with                        various maturities of 4/16/2017-4/16/2044 with a value of                        $51,000,752.* |
|-------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

 

| *(d)* | *Collateralized by:* |
|-------|----------------------|

 

| ***Principal***              |                                                                           |           | ***Maturity***        | ***Collateral*** |
|------------------------------|--------------------------------------------------------------------------------|----------------|-----------------------|------------------|
| ***Amount ($)***             | ***Security***                                                                 | ***Rate (%)*** | ***Date***            | ***Value ($)***  |
| *31,647,221*                 | *Federal National Mortgage Association*                                        | *10.515-22.35* | *8/25/2032-8/25/2037* | *35,277,618*     |
| *3,314,705*                  | *Federal National Mortgage Association - Interest                        Only* | *4.624-5.224*  | *6/25/2029-8/25/2031* | *426,507*        |
| ***Total Collateral Value*** |                                                                           |           | ***35,704,125***      |

 

| *(e)*                                                                                                                                                                                                                                                                                                                           | *Collateralized by $144,643,189 Federal National                        Mortgage Association, 5.5%, with various maturities of 4/1/2016-7/1/2037                        with a value of $146,999,954.* |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| *Interest Only: Interest Only (IO) bonds represent the                        “interest only” portion of payments on a pool of underlying                        mortgages or mortgage-backed securities. IO securities are subject to                        prepayment risk of the pool of underlying mortgages.* |

 

| **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 half-year (the                        registrant’s second fiscal half-year in the case of the annual                        report) 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: | Money Market Portfolio, a series of Cash Account                        Trust |
|-------------|-------------------------------------------------------------------------------|

 

| By: | /s/Michael G. Clark |
|-----|---------------------|

|   | Michael G. Clark |
|--------|------------------|

President

 

| Date: | March 17, 2008 |
|-------|----------------|

 

 

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.

 

| Registrant: | Money Market Portfolio, a series of Cash Account                        Trust |
|-------------|-------------------------------------------------------------------------------|

 

| By: | /s/Michael G. Clark |
|-----|---------------------|

|   | Michael G. Clark |
|--------|------------------|

President

 

| Date: | March 17, 2008 |
|-------|----------------|

 

 

| By: | /s/Paul Schubert |
|-----|------------------|

|   | Paul Schubert |
|--------|---------------|

Chief Financial Officer and Treasurer

 

Date:                                        March        17, 2008