N-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number: 811-02819

Natixis Cash Management Trust

(Exact name of registrant as specified in charter)

399 Boylston Street, Boston, Massachusetts 02116

(Address of principal executive offices) (Zip code)

Coleen Downs Dinneen, Esq.

Natixis Distributors, L.P.

399 Boylston Street

Boston, Massachusetts 02116

(Name and address of agent for service)

Registrant’s telephone number, including area code: (617) 449-2810

Date of fiscal year end: June 30

Date of reporting period: September 30, 2010

ITEM I SCHEDULE OF INVESTMENTS

PORTFOLIO OF INVESTMENTS – as of September 30, 2010 (Unaudited)

Natixis Cash Management Trust - Money Market Series

Principal Amount		Description	Value (†)
	Certificates of Deposit – 55.1% of Net Assets
$	9,000,000	Credit Agricole CIB (NY), 0.660%, 10/04/2010	$	9,000,225
	10,000,000	Credit Industriel et Commercial (NY), 0.700%, 10/04/2010		10,000,000
	10,000,000	Royal Bank of Scotland (CT), 0.510%, 10/22/2010		10,000,058
	5,000,000	Banco Santander (NY), 0.280%, 10/25/2010		5,000,000
	10,000,000	Rabobank Nederland NV (NY), 0.460%, 11/01/2010		10,000,258
	9,500,000	Skandinaviska Enskilda Banken (NY), 0.510%, 11/08/2010		9,500,500
	9,500,000	Landesbank Hessen Thueringen Girozentrale, 0.520%, 12/13/2010		9,500,192
	9,200,000	Intesa Sanpaolo (NY), 0.280%, 12/17/2010		9,200,000
	6,300,000	Bank of Nova Scotia (TX), 0.260%, 12/21/2010		6,300,000
	9,500,000	Standard Chartered Bank (NY), 0.320%, 1/05/2011		9,500,000
	10,000,000	Svenska Handelsbanken (NY), 0.460%, 1/27/2011		10,000,327
	10,000,000	Dexia Credit Local SA (NY), 0.456%, 6/29/2011(b)		10,000,000
		Total Certificates of Deposit (Identified Cost $108,001,560)		108,001,560
	Other Instruments – 18.6%
	9,700,000	Royal Bank of Canada, 0.150%, 10/01/2010		9,700,000
	7,300,000	Commerzbank AG, 0.170%, 10/01/2010		7,300,000
	9,700,000	National Bank of Canada, 0.180%, 10/01/2010		9,700,000
	9,700,000	Citibank, 0.230%, 10/01/2010		9,700,000
		Total Other Instruments (Identified Cost $36,400,000)		36,400,000
	Financial Company Commercial Paper – 17.3%
	9,500,000	Societe Generale North America, 0.225%, 10/05/2010(c)		9,499,762
	10,000,000	Lloyd’s TSB Bank PLC, 0.500%, 10/13/2010(c)		9,998,333
	4,400,000	ING (US) Funding LLC, 0.250%, 10/14/2010(c)		4,399,603
	10,000,000	Nordea North America, Inc., 0.440%, 1/14/2011(c)		9,987,167
		Total Financial Company Commercial Paper (Identified Cost $33,884,865)		33,884,865

Principal Amount		Description	Value (†)
	Asset-Backed Commercial Paper – 4.8%
$	9,500,000	Chesham Finance LLC, 0.400%, 10/01/2010, 144A(c) (Identified Cost $9,500,000)	$	9,500,000
	Variable Rate Demand Notes – 4.7%
	1,615,000	Kansas City, MO Special Obligation Bond, 0.350%, 3/01/2028, (Credit Support: JPMorgan Chase)(d)		1,615,000
	7,500,000	New Jersey State Housing & Mortgage Finance Agency, 0.360%, 11/01/2039, (Credit Support: Bank of America)(d)		7,500,000
		Total Variable Rate Demand Notes (Identified Cost $9,115,000)		9,115,000
		Total Investments — 100.5% (Identified Cost $196,901,425)(a)		196,901,425
		Other assets less liabilities — (0.5)%		(904,329	)
		Net Assets — 100.0%	$	195,997,096

(†) The Fund employs the amortized cost method of security valuation as set forth in Rule 2a-7 under the 1940 Act which, in the opinion of the Trustees of the Trust, represents the fair value of the particular security. The amortized cost of a security is determined by valuing it at original cost and thereafter assumes a constant accretion/amortization to maturity of any discount/premium. By using amortized cost valuation, the Fund seeks to maintain a constant net asset value of $1.00 per share despite minor shifts in the market value of its portfolio securities.

(a) The aggregate cost for federal income tax purposes was $196,901,425.

(b) Security payable on demand at par including accrued interest with seven days notice. The interest rate changes monthly based upon 1 month Libor. The spread to 1 month Libor changes each month. The rate shown is the rate in effect at the date of this statement.

(c) Interest rate represents discount rate at time of purchase; not a coupon rate.

(d) Security payable on demand at par including accrued interest (usually with seven days notice). The interest rate is adjustable and is based on bank prime rates or other interest rate adjustment indices. The rate shown is the rate in effect at the date of this statement.

144A Security exempt from registration under Rule 144A of the Securities Act of 1933. This security may be resold in transactions exempt from registration, normally to qualified institutional buyers. At September 30, 2010, the value of this security amounted to $9,500,000 or 4.8% of net assets.

Fair Value Measurements

In accordance with accounting standards related to fair value measurements and disclosures, the Fund has categorized the inputs utilized in determining the value of the Fund’s assets or liabilities. These inputs are summarized in the three broad levels listed below:

• Level 1 - quoted prices in active markets for identical assets or liabilities;

• Level 2 - prices determined using other significant inputs that are observable either directly, or indirectly through corroboration with observable market data (which could include quoted prices for similar assets or liabilities, interest rates, credit risk, etc.);

• Level 3 - prices determined using significant unobservable inputs when quoted prices or observable inputs are unavailable such as when there is little or no market activity for an asset or liability (unobservable inputs reflect the Fund’s own assumptions in determining the fair value of assets or liabilities and would be based on the best information available).

The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

The following is a summary of the inputs used to value the Fund’s investments as of September 30, 2010, at value:

Asset Valuation Inputs

Description*	Level 1		Level 2		Level 3		Total
Investments in Securities	$	—	$	196,901,425	$	—	$	196,901,425

* Major categories of the Fund’s investments are included above.

Investment Summary at September 30, 2010 (Unaudited)

Certificates of Deposit	55.1	%
Other Instruments	18.6
Financial Company Commercial Paper	17.3
Asset-Backed Commercial Paper	4.8
Variable Rate Demand Notes	4.7
Total Investments	100.5
Other assets less liabilities	(0.5	)
Net Assets	100.0	%

ITEM 2. CONTROLS AND PROCEDURES.

The registrant’s principal executive officer and principal financial officer have concluded that the registrant’s disclosure controls and procedures are sufficient to ensure that information required to be disclosed by the registrant in this Form N-Q was recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, based upon such officers’ evaluation of these controls and procedures as of a date within 90 days of the filing date of the report.

There were 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 control over financial reporting.

ITEM 3. EXHIBITS

(a)(1)	Certification for the Principal Executive Officer pursuant to Rule 30a-2(a) of the Investment Company Act of 1940 (17 CFR 270.30a-2(a)), filed herewith.
(a)(2)	Certification for the Principal Financial Officer pursuant to Rule 30a-2(a) of the Investment Company Act of 1940 (17 CFR 270.30a-2(a)), filed herewith.

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.

Natixis Cash Management Trust
By:	/s/    DAVID L. GIUNTA
Name:	David L. Giunta
Title:	President and Chief Executive Officer
Date:	November 22, 2010

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

By:	/s/    DAVID L. GIUNTA
Name:	David L. Giunta
Title:	President and Chief Executive Officer
Date:	November 22, 2010
By:	/s/    MICHAEL C. KARDOK
Name:	Michael C. Kardok
Title:	Treasurer
Date:	November 22, 2010

EX-99.CERT

Exhibit (a)(1)

Natixis Cash Management Trust

Exhibit to SEC Form N-Q

Section 302 Certification

I, David L. Giunta, certify that:

1. I have reviewed this report on Form N-Q of Natixis Cash Management Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the schedules of investments included in this report fairly present in all material respects the investments of the registrant as of the end of the fiscal quarter for which the report is filed;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of such disclosure controls and procedures, as of a date within 90 days prior to the filing of this report, based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 22, 2010

/s/ David L. Giunta

David L. Giunta

President and Chief Executive Officer

Exhibit (a)(2)

Natixis Cash Management Trust

Exhibit to SEC Form N-Q

Section 302 Certification

I, Michael C. Kardok, certify that:

1. I have reviewed this report on Form N-Q of Natixis Cash Management Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the schedules of investments included in this report fairly present in all material respects the investments of the registrant as of the end of the fiscal quarter for which the report is filed;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of such disclosure controls and procedures, as of a date within 90 days prior to the filing of this report, based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 22, 2010

/s/ Michael C. Kardok

Michael C. Kardok

Treasurer