Delaware Group Cash Reserve N-CSR Certified annual shareholder report (management investment company)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT
INVESTMENT COMPANIES

Investment Company Act file number:	811-02806
Exact name of registrant as specified in charter:	Delaware Group® Cash Reserve
Address of principal executive offices:	2005 Market Street
	Philadelphia, PA 19103
Name and address of agent for service:	David F. Connor, Esq.
	2005 Market Street
	Philadelphia, PA 19103
Registrant’s telephone number, including area code:	(800) 523-1918
Date of fiscal year end:	March 31
Date of reporting period:	September 30, 2010

Item 1. Reports to Stockholders

Semiannual report

Delaware Cash Reserve® Fund

September 30, 2010

Fixed income mutual fund

This semiannual report is for the information of Delaware Cash Reserve Fund shareholders, but it may be used with prospective investors when preceded or accompanied by a current prospectus for Delaware Cash Reserve Fund.

The figures in the semiannual report for Delaware Cash Reserve Fund represent past results, which are not a guarantee of future results. The return and principal value of an investment in the Fund will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. Current performance may be higher or lower than the performance data quoted.

You should consider the investment objectives, risks, charges, and expenses of the Fund carefully before investing. The Delaware Cash Reserve Fund prospectus contains this and other important information about the Fund. Prospectuses for all open-end funds in the Delaware Investments® Family of Funds are available from your financial advisor, online at www.delawareinvestments.com, or by phone at 800 523-1918. Please read the prospectus carefully before you invest or send money.

You can obtain shareholder reports and prospectuses online instead of in the mail.

Visit www.delawareinvestments.com/edelivery.

Experience Delaware Investments

Delaware Investments is committed to the pursuit of consistently superior asset management and unparalleled client service. We believe in our investment processes, which seek to deliver consistent results, and in convenient services that help add value for our clients.

If you are interested in learning more about creating an investment plan, contact your financial advisor.

You can learn more about Delaware Investments or obtain a prospectus for Delaware Cash Reserve® Fund at www.delawareinvestments.com.

Manage your investments online

• 24-hour access to your account information
• Obtain share prices
• Check your account balance and recent transactions
• Request statements or literature
• Make purchases and redemptions

Delaware Management Holdings, Inc., and its subsidiaries (collectively known by the marketing name of Delaware Investments) are wholly owned subsidiaries of Macquarie Group Limited, a global provider of banking, financial, advisory, investment and funds management services.

Investments in Delaware Cash Reserve Fund are not and will not be deposits with or liabilities of Macquarie Bank Limited ABN 46 008 583 542 and its holding companies, including their subsidiaries or related companies (Macquarie Group), and are subject to investment risk, including possible delays in repayment and loss of income and capital invested. No Macquarie Group company guarantees or will guarantee the performance of the Fund, the repayment of capital from the Fund, or any particular rate of return.

Table of contents
Disclosure of Fund expenses	1
Sector allocation	3
Statement of net assets	4
Statement of operations	9
Statements of changes in net assets	10
Financial highlights	12
Notes to financial statements	20
Other Fund information	27
About the organization	28

Unless otherwise noted, views expressed herein are current as of Sept. 30, 2010, and are subject to change.

Funds are not FDIC insured and are not guaranteed. It is possible to lose the principal amount invested.

Mutual fund advisory services provided by Delaware Management Company, a series of Delaware Management Business Trust, which is a registered investment advisor. Delaware Investments, a member of Macquarie Group, refers to Delaware Management Holdings, Inc. and its subsidiaries, including the Fund’s distributor, Delaware Distributors, L.P. Macquarie Group refers to Macquarie Group Limited and its subsidiaries and affiliates worldwide.

© 2010 Delaware Management Holdings, Inc.

All third-party trademarks cited are the property of their respective owners.

Disclosure of Fund expenses
For the six month period April 1, 2010 to September 30, 2010

As a shareholder of the Fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on purchase payments, reinvested dividends, or other distributions; redemption fees; and exchange fees; and (2) ongoing costs, including management fees; distribution and/or service (12b-1) fees; and other Fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds.

The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire six-month period from April 1, 2010 to September 30, 2010.

Actual expenses

The first section of the table shown, “Actual Fund return,” provides information about actual account values and actual expenses. You may use the information in this section of the table, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first section under the heading entitled “Expenses Paid During Period” to estimate the expenses you paid on your account during this period.

Hypothetical example for comparison purposes

The second section of the table shown, “Hypothetical 5% return,” provides information about hypothetical account values and hypothetical expenses based on the Fund’s actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund’s actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds.

Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads), redemption fees, or exchange fees. Therefore, the second section of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. The Fund’s expenses shown in the table reflect fee waivers in effect. The expenses shown in the table assume reinvestment of all dividends and distributions.

1

Disclosure of Fund expenses

Delaware Cash Reserve® Fund
Expense analysis of an investment of $1,000

	Beginning			Ending					Expenses
	Account Value			Account Value			Annualized		Paid During Period
	4/1/10			9/30/10			Expense Ratio		4/1/10 to 9/30/10*
Actual Fund return
Class A		$	1,000.00		$	1,000.30		0.28%		$	1.40
Class B			1,000.00			1,000.30		0.28%			1.40
Class C			1,000.00			1,000.30		0.28%			1.40
Consultant Class			1,000.00			1,000.30		0.28%			1.40
Hypothetical 5% return (5% return before expenses)
Class A		$	1,000.00		$	1,023.66		0.28%		$	1.42
Class B			1,000.00			1,023.66		0.28%			1.42
Class C			1,000.00			1,023.66		0.28%			1.42
Consultant Class			1,000.00			1,023.66		0.28%			1.42

Effective June 17, 2010, Delaware Management Company has voluntarily agreed to waive that portion, if any, of its management fee and reimburse the Fund to the extent necessary to ensure that total annual operating expenses do not exceed 0.24% of average daily net assets of the Fund until such time as the waiver is discontinued. Prior to June 17, 2010, there was a voluntary waiver of 0.34% of average net assets beginning March 5, 2010 and a voluntary waiver of 0.29% beginning May 26, 2010. The Fund’s expense analysis would be as follows if this limit was in effect for the entire period:

	Beginning			Ending					Expenses
	Account Value			Account Value			Annualized		Paid During Period
	4/1/10			9/30/10			Expense Ratio		4/1/10 to 9/30/10*
Actual Fund return
Class A		$	1,000.00		$	1,000.30		0.24%		$	1.20
Class B			1,000.00			1,000.30		0.24%			1.20
Class C			1,000.00			1,000.30		0.24%			1.20
Consultant Class			1,000.00			1,000.30		0.24%			1.20
Hypothetical 5% return (5% return before expenses)
Class A		$	1,000.00		$	1,023.87		0.24%		$	1.22
Class B			1,000.00			1,023.87		0.24%			1.22
Class C			1,000.00			1,023.87		0.24%			1.22
Consultant Class			1,000.00			1,023.87		0.24%			1.22

*“Expenses Paid During Period” are equal to the Fund’s annualized expense ratio, multiplied by the average account value over the period, multiplied by 183/365 (to reflect the one-half year period).

2

Sector allocation
Delaware Cash Reserve® Fund	As of September 30, 2010

Sector designations may be different than the sector designations presented in other Fund materials. The sector designations may represent the investment manager’s internal sector classifications, which may result in the sector designations for one fund being different than another fund’s sector designations.

Sector	Percentage of net assets
Agency Obligation	2.50	%
Certificates of Deposit	12.99	%
Commercial Paper	59.95	%
Colleges & Universities	20.39	%
Financial Services	18.25	%
Healthcare	1.66	%
Industrial	12.16	%
Mortgage Bankers & Brokers	7.49	%
Corporate Bonds	4.25	%
Banking	4.13	%
Financial Services	0.05	%
Pharmaceuticals	0.07	%
Municipal Bonds	20.37	%
Total Value of Securities	100.06	%
Liabilities Net of Receivables and Other Assets	(0.06	%)
Total Net Assets	100.00	%

3

Statement of net assets
Delaware Cash Reserve® Fund	September 30, 2010 (Unaudited)

 

		Principal amount		Value
Agency Obligation – 2.50%
≠	Federal Home Loan Bank 0.50% 10/19/10	$	7,500,000	$	7,499,941
Total Agency Obligation (cost $7,499,941)					7,499,941
Certificates of Deposit – 12.99%
	Abbey National Treasury Service 0.26% 10/12/10		5,000,000		5,000,000
	Bank of Montreal, Chicago 0.20% 10/1/10		14,000,000		14,000,000
	Bank of Nova Scotia, Houston
	0.245% 10/15/10		10,000,000		10,000,000
	0.25% 11/23/10		5,000,000		5,000,000
•	Toronto Dominion Bank New York 0.307% 5/19/11		5,000,000		5,000,000
Total Certificates of Deposit (cost $39,000,000)					39,000,000
Commercial Paper – 59.95%
Colleges & Universities – 20.39%
≠	Brown University
	0.29% 10/4/10		3,750,000		3,749,909
	0.29% 12/14/10		3,500,000		3,497,914
≠	Cornell University
	0.26% 12/2/10		5,000,000		4,997,761
	0.29% 10/7/10		7,500,000		7,499,638
	0.30% 1/25/11		5,000,000		4,995,167
≠	Dartmouth College 0.26% 10/6/10		2,500,000		2,499,910
	Emory University
	0.00% 10/12/10		5,000,000		5,000,000
	0.27% 12/8/10		5,000,000		5,000,000
≠	University of Chicago
	0.22% 11/3/10		2,000,000		1,999,597
	0.22% 11/16/10		5,000,000		4,998,594
	0.33% 10/4/10		6,000,000		5,999,835
≠	Vanderbilt University
	0.29% 11/1/10		3,464,000		3,463,135
	0.401% 1/11/11		7,500,000		7,491,500
					61,192,960
Financial Services – 18.25%
≠	Allianz Finance 0.23% 11/8/10		5,000,000		4,998,786
≠	American Honda Finance 0.30% 11/17/10		5,000,000		4,998,042
≠	Danske
	0.40% 10/4/10		5,000,000		4,999,833
	0.441% 12/17/10		5,000,000		4,995,294

4

		Principal amount		Value
Commercial Paper (continued)
Financial Services (continued)
≠	Eksportfinans
	0.19% 10/5/10	$	4,775,000	$	4,774,899
	0.25% 11/10/10		2,450,000		2,449,319
≠	Nordea North America 0.22% 11/9/10		4,000,000		3,999,047
≠	Toyota Motor Credit
	0.30% 10/20/10		4,570,000		4,569,276
	0.40% 10/8/10		5,000,000		4,999,611
	UBS Finance Delaware 0.19% 10/1/10		14,000,000		14,000,001
					54,784,108
Healthcare – 1.66%
≠	Medtronic 0.22% 11/17/10		5,000,000		4,998,564
					4,998,564
Industrial – 12.16%
	Cargill 0.20% 10/1/10		10,000,000		10,000,000
≠	Koch Resources
	0.22% 10/4/10		5,000,000		4,999,908
	0.24% 10/26/10		7,500,000		7,498,750
	Northern Illinois Gas 0.18% 10/1/10		14,000,000		14,000,000
					36,498,658
Mortgage Bankers & Brokers – 7.49%
≠	Commonwealth Bank of Australia 0.24% 12/13/10		5,000,000		4,997,567
≠	HSBC USA 0.22% 10/12/10		5,000,000		4,999,664
≠	National Australian Funding 0.466% 1/3/11		5,000,000		4,993,929
≠	Skandinav Enskilda Bank 0.31% 11/17/10		7,500,000		7,496,965
					22,488,125
Total Commercial Paper (cost $179,962,415)					179,962,415
Corporate Bonds – 4.25%
Banking – 4.13%
	Bank of America
	4.25% 10/1/10		180,000		180,000
	7.40% 1/15/11		500,000		509,356
	Goldman Sachs Group 6.875% 1/15/11		1,352,000		1,376,439
	JPMorgan Chase 6.75% 2/1/11		2,000,000		2,037,770
	National City Bank/Cleveland 6.25% 3/15/11		1,000,000		1,023,845
	National City Bank of Kentucky 6.30% 2/15/11		750,000		766,068

5

Statement of net assets
Delaware Cash Reserve® Fund

		Principal amount		Value
Corporate Bonds (continued)
Banking (continued)
	PNC Funding 5.125% 12/14/10	$	500,000	$	504,539
•	Rabobank Nederland 0.347% 9/13/11		4,750,000		4,750,000
	Wells Fargo
	4.875% 1/12/11		250,000		252,919
	6.375% 8/1/11		939,000		980,102
					12,381,038
Financial Services – 0.05%
	Countrywide Home Loans 4.00% 3/22/11		150,000		152,249
					152,249
Pharmaceuticals – 0.07%
	American Home Products 6.95% 3/15/11		200,000		205,784
					205,784
Total Corporate Bonds (cost $12,739,071)					12,739,071
•Municipal Bonds – 20.37%
	Catholic Health Initiatives
	0.28% 11/16/10		5,000,000		5,000,000
	0.30% 10/26/10		5,100,000		5,100,000
	Colorado Educational & Cultural Facilities Authority
	(National Jewish Federation Program)
	Series A-8 0.30% 9/1/35 (LOC - Bank of America N.A.)		2,500,000		2,500,000
	Connecticut Health & Education Facilities Authority
	(Yale University Series) 0.25% 10/4/10		4,160,000		4,160,000
	Delaware River Port Authority Pennsylvania & New Jersey
	Revenue Refunding Series C 0.25% 1/1/26		5,000,000		5,000,000
	Hanover County, Virginia Economic Development Authority
	Revenue (Bon Secours Health)
	Series D-2 0.28% 11/1/25 (LOC - Bank of America N.A.)		2,750,000		2,750,000
	Harrisonburg, Virginia Redevelopment &
	Housing Authority Multi-Family Housing
	Revenue Refunding (Amberton Apartments)
	Series A 0.39% 5/1/26 (LOC - Bank of America N.A.)		3,500,000		3,500,000
	Los Angeles, California Water & Power 0.28% 11/2/10		5,000,000		5,000,000
	Maryland State Health & Higher Education Facilities
	Authority Revenue (Pooled Loan Program)
	Series B 0.26% 4/1/35 (LOC - JPMorgan Chase Bank)		7,500,000		7,500,000

6

		Principal amount			Value
•Municipal Bonds (continued)
	Massachusetts Health & Education Facilities Authority
	(Harvard University)
	0.24% 10/5/10	$	7,500,000	$	7,500,000
	0.25% 10/5/10		4,000,000		4,000,000
	Massachusetts Port Authority Revenue Series D
	0.27% 7/1/29 (AMT) (LOC - Bank of America N.A.)		4,000,000		4,000,000
	New York, New York City Health &
	Hospital Revenue (Health System) Series E
	0.25% 2/15/26 (LOC - JPMorgan Chase Bank)		5,135,000		5,135,000
Total Municipal Bonds (cost $61,145,000)					61,145,000
Total Value of Securities – 100.06%
	(cost $300,346,427)©				300,346,427
Liabilities Net of Receivables
	and Other Assets – (0.06%)				(172,713		)
Net Assets Applicable to 300,504,664
	Shares Outstanding – 100.00%			$	300,173,714
Net Asset Value – Delaware Cash Reserve Fund
	Class A ($277,897,548 / 278,203,062 Shares)					$1.00
Net Asset Value – Delaware Cash Reserve Fund
	Class B ($3,778,767 / 3,783,288 Shares)					$1.00
Net Asset Value – Delaware Cash Reserve Fund
	Class C ($9,198,453 / 9,208,744 Shares)					$1.00
Net Asset Value – Delaware Cash Reserve Fund
	Consultant Class ($9,298,946 / 9,309,570 Shares)					$1.00
Components of Net Assets at September 30, 2010:
Shares of beneficial interest (unlimited authorization – no par)				$	300,505,437
Accumulated net realized loss on investments					(331,723		)
Total net assets				$	300,173,714

7

Statement of net assets
Delaware Cash Reserve® Fund

≠	The rate shown is the effective yield at the time of purchase.
•	Variable rate security. The rate shown is the rate as of September 30, 2010. Interest rates reset periodically.
©	Also the cost for federal income tax purposes.

Summary of abbreviations:
AMT — Subject to Alternative Minimum Tax
LOC — Letter of Credit

See accompanying Notes, which are an integral part of the financial statements.

8

Statement of operations
Delaware Cash Reserve® Fund	Six Months Ended September 30, 2010 (Unaudited)

Investment Income:
Interest			$	509,552
Expenses:
Management fees	$	691,794
Dividend and disbursing and transfer agent fees and expenses		264,801
Distribution expenses – Class B		21,337
Distribution expenses – Class C		46,639
Distribution expenses – Consultant Class		14,440
Accounting and administration expenses		60,931
Registration fees		34,053
Legal fees		22,483
Dues and services		20,036
Reports and statements to shareholders		20,022
Audit and tax		13,490
Insurance fees		9,704
Trustees’ fees		8,471
Custodian fees		3,738
Pricing fees		1,880
Consulting fees		1,745
Trustees’ expenses		664		1,236,228
Less expenses waived				(724,101	)
Less waived distribution expenses – Class B				(21,337	)
Less waived distribution expenses – Class C				(46,639	)
Less waived distribution expenses – Consultant Class				(14,440	)
Less expense paid indirectly				(503	)
Total operating expenses				429,208
Net Investment Income				80,344
Net Increase in Net Assets Resulting from Operations			$	80,344

See accompanying Notes, which are an integral part of the financial statements.

9

Statements of changes in net assets
Delaware Cash Reserve® Fund

	Six Months			Year
	Ended			Ended
	9/30/10			3/31/10
	(Unaudited)
Increase in Net Assets from Operations:
Net investment income	$	80,344		$	378,584
Net realized gain on investments		—			37
Net increase in net assets resulting from operations		80,344			378,621
Dividends to Shareholders from:
Net investment income:
Class A		(74,271	)		(350,224	)
Class B		(1,109	)		(6,281	)
Class C		(2,442	)		(10,948	)
Consultant Class		(2,522	)		(11,131	)
		(80,344	)		(378,584	)
Capital Share Transactions:
Proceeds from shares sold:
Class A		59,329,417			390,393,407
Class B		809,582			1,098,172
Class C		4,603,472			6,196,655
Consultant Class		1,733,263			5,226,005
Net asset value of shares issued upon reinvestment
of dividends:
Class A		74,215			349,524
Class B		988			5,502
Class C		2,311			10,197
Consultant Class		2,435			11,070
		66,555,683			403,290,532

10

	Six Months			Year
	Ended			Ended
	9/30/10			3/31/10
	(Unaudited)
Capital Share Transactions (continued):
Cost of shares repurchased:
Class A	$	(69,589,115	)	$	(534,760,733	)
Class B		(1,493,304	)		(6,148,653	)
Class C		(4,554,951	)		(12,373,900	)
Consultant Class		(2,637,020	)		(9,056,397	)
		(78,274,390	)		(562,339,683	)
Decrease in net assets derived from
capital share transactions		(11,718,707	)		(159,049,151	)
Net Decrease in Net Assets		(11,718,707	)		(159,049,114	)
Net Assets:
Beginning of period		311,892,421			470,941,535
End of period (there was no undistributed net
investment income at either period end)	$	300,173,714		$	311,892,421

See accompanying Notes, which are an integral part of the financial statements.

11

Financial highlights
Delaware Cash Reserve® Fund Class A

Selected data for each share of the Fund outstanding throughout each period were as follows:
 

Net asset value, beginning of period

Income from investment operations:

Net investment income

Total from investment operations

Less dividends from:

Net investment income

Total dividends

Net asset value, end of period

Total return2

Ratios and supplemental data:

Net assets, end of period (000 omitted)

Ratio of expenses to average net assets

Ratio of expenses to average net assets

       prior to fees waived and expense paid indirectly

Ratio of net investment income to average net assets

Ratio of net investment income (loss) to average net assets

       prior to fees waived and expense paid indirectly

1 Ratios have been annualized and total return have not been annualized.

2 Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends at net asset value. Total investment return during all of the periods shown reflects a waiver by the manager. Performance would have been lower had the waiver not been in effect.

See accompanying Notes, which are an integral part of the financial statements.

12

Six Months Ended			Year Ended
9/30/101			3/31/10		3/31/09		3/31/08		3/31/07		3/31/06
(Unaudited)
	$1.000		$1.000		$1.000		$1.000		$1.000		$1.000
	—		0.001		0.014		0.043		0.046		0.031
	—		0.001		0.014		0.043		0.046		0.031
	—		(0.001	)	(0.014	)	(0.043	)	(0.046	)	(0.031	)
	—		(0.001	)	(0.014	)	(0.043	)	(0.046	)	(0.031	)
	$1.000		$1.000		$1.000		$1.000		$1.000		$1.000
	0.03%		0.09%		1.42%		4.36%		4.65%		3.11%
	$277,898		$288,112		$432,133		$461,977		$399,433		$400,447
	0.28%		0.63%		0.66%		0.69%		0.71%		0.70%
	0.75%		0.72%		0.69%		0.69%		0.72%		0.75%
	0.05%		0.09%		1.42%		4.27%		4.56%		3.06%
	(0.42%	)	0.00%		1.39%		4.27%		4.55%		3.01%

13

Financial highlights
Delaware Cash Reserve® Fund Class B

Selected data for each share of the Fund outstanding throughout each period were as follows:
 

Net asset value, beginning of period

Income from investment operations:

Net investment income

Total from investment operations

Less dividends from:

Net investment income

Total dividends

Net asset value, end of period

Total return2

Ratios and supplemental data:

Net assets, end of period (000 omitted)

Ratio of expenses to average net assets

Ratio of expenses to average net assets

       prior to fees waived and expense paid indirectly

Ratio of net investment income to average net assets

Ratio of net investment income (loss) to average net assets

       prior to fees waived and expense paid indirectly

1 Ratios have been annualized and total return have not been annualized.

2 Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends at net asset value and does not reflect the impact of a sales charge. Total investment return during all of the periods shown reflects waivers by the manager and/or distributor. Performance would have been lower had the waivers not been in effect.

See accompanying Notes, which are an integral part of the financial statements.

14

Six Months Ended			Year Ended
9/30/101			3/31/10		3/31/09		3/31/08		3/31/07		3/31/06
(Unaudited)
	$1.000		$1.000		$1.000		$1.000		$1.000		$1.000
	—		0.001		0.006		0.033		0.036		0.022
	—		0.001		0.006		0.033		0.036		0.022
	—		(0.001	)	(0.006	)	(0.033	)	(0.036	)	(0.022	)
	—		(0.001	)	(0.006	)	(0.033	)	(0.036	)	(0.022	)
	$1.000		$1.000		$1.000		$1.000		$1.000		$1.000
	0.03%		0.09%		0.60%		3.32%		3.62%		2.21%
	$3,779		$4,444		$9,486		$8,000		$7,058		$9,807
	0.28%		0.63%		1.45%		1.69%		1.71%		1.55%
	1.75%		1.72%		1.69%		1.69%		1.72%		1.75%
	0.05%		0.09%		0.63%		3.27%		3.56%		2.21%
	(1.42%	)	(1.00%	)	0.39%		3.27%		3.55%		2.01%

15

Financial highlights
Delaware Cash Reserve® Fund Class C

Selected data for each share of the Fund outstanding throughout each period were as follows:
 

Net asset value, beginning of period

Income from investment operations:

Net investment income

Total from investment operations

Less dividends from:

Net investment income

Total dividends

Net asset value, end of period

Total return2

Ratios and supplemental data:

Net assets, end of period (000 omitted)

Ratio of expenses to average net assets

Ratio of expenses to average net assets

       prior to fees waived and expense paid indirectly

Ratio of net investment income to average net assets

Ratio of net investment income (loss) to average net assets

       prior to fees waived and expense paid indirectly

1 Ratios have been annualized and total return have not been annualized.

2 Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends at net asset value and does not reflect the impact of a sales charge. Total investment return during all of the periods shown reflects waivers by the manager and/or distributor. Performance would have been lower had the waivers not been in effect.

See accompanying Notes, which are an integral part of the financial statements.

16

Six Months Ended		Year Ended
9/30/101		3/31/10		3/31/09		3/31/08		3/31/07		3/31/06
(Unaudited)
	$1.000	$1.000		$1.000		$1.000		$1.000		$1.000
	—	0.001		0.006		0.033		0.036		0.022
	—	0.001		0.006		0.033		0.036		0.022
	—	(0.001	)	(0.006	)	(0.033	)	(0.036	)	(0.022	)
	—	(0.001	)	(0.006	)	(0.033	)	(0.036	)	(0.022	)
	$1.000	$1.000		$1.000		$1.000		$1.000		$1.000
	0.03%	0.09%		0.60%		3.32%		3.62%		2.21%
	$9,198	$9,149		$15,317		$11,399		$6,781		$5,353
	0.28%	0.63%		1.45%		1.69%		1.71%		1.55%
	1.75%	1.72%		1.69%		1.69%		1.72%		1.75%
	0.05%	0.09%		0.63%		3.27%		3.56%		2.21%
	(1.42%)	(1.00%)		0.39%		3.27%		3.55%		2.01%

17

Financial highlights
Delaware Cash Reserve® Fund Consultant Class

Selected data for each share of the Fund outstanding throughout each period were as follows:

Net asset value, beginning of period

Income from investment operations:

Net investment income

Total from investment operations

Less dividends from:

Net investment income

Total dividends

Net asset value, end of period

Total return2

Ratios and supplemental data:

Net assets, end of period (000 omitted)

Ratio of expenses to average net assets

Ratio of expenses to average net assets

       prior to fees waived and expense paid indirectly

Ratio of net investment income to average net assets

Ratio of net investment income (loss) to average net assets

       prior to fees waived and expense paid indirectly

1 Ratios have been annualized and total return have not been annualized.

2 Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends at net asset value and does not reflect the impact of a sales charge. Total investment return during all of the periods shown reflects waivers by the manager and/or distributor. Performance would have been lower had the waivers not been in effect.

See accompanying Notes, which are an integral part of the financial statements.

18

Six Months Ended			Year Ended
9/30/101			3/31/10		3/31/09		3/31/08		3/31/07		3/31/06
(Unaudited)
	$1.000		$1.000		$1.000		$1.000		$1.000		$1.000
	—		0.001		0.012		0.040		0.043		0.028
	—		0.001		0.012		0.040		0.043		0.028
	—		(0.001	)	(0.012	)	(0.040	)	(0.043	)	(0.028	)
	—		(0.001	)	(0.012	)	(0.040	)	(0.043	)	(0.028	)
	$1.000		$1.000		$1.000		$1.000		$1.000		$1.000
	0.03%		0.09%		1.19%		4.10%		4.39%		2.85%
	$9,299		$10,187		$14,006		$14,678		$15,426		$18,816
	0.28%		0.63%		0.89%		0.94%		0.96%		0.95%
	1.05%		1.02%		0.99%		0.99%		1.02%		1.05%
	0.05%		0.09%		1.19%		4.02%		4.31%		2.81%
	(0.72%	)	(0.30%	)	1.09%		3.97%		4.25%		2.71%

19

Notes to financial statements
Delaware Cash Reserve® Fund	September 30, 2010 (Unaudited)

Delaware Group® Cash Reserve (Trust) is organized as a Delaware statutory trust and offers one series, the Delaware Cash Reserve Fund (Fund). The Trust is an open-end investment company. The Fund is considered diversified under the Investment Company Act of 1940, as amended, and offers Class A, Class B, Class C and Consultant Class shares. Class A and Consultant Class shares are not subject to a sales charge. Class B shares may only be purchased through dividend reinvestment and certain permitted exchanges. Prior to June 1, 2007, Class B shares were sold with a contingent deferred sales charge (CDSC) that declined from 4% to zero depending upon the period of time the shares were held. Class B shares will automatically convert to Consultant Class shares on a quarterly basis approximately eight years after purchase. Class C shares are sold with a CDSC of 1%, if redeemed during the first twelve months.

The investment objective of the Fund is to seek to provide maximum current income, while preserving principal and maintaining liquidity.

1. Significant Accounting Policies

The following accounting policies are in accordance with U.S. generally accepted accounting principles (U.S. GAAP) and are consistently followed by the Fund.

Security Valuation — Securities are valued at amortized cost, which approximates market value.

Federal Income Taxes — No provision for federal income taxes has been made as the Fund intends to continue to qualify for federal income tax purposes as a regulated investment company under Subchapter M of the Internal Revenue Code of 1986, as amended, and make the requisite distributions to shareholders. The Fund evaluates tax positions taken or expected to be taken in the course of preparing the Fund’s tax returns to determine whether the tax positions are “more-likely-than-not” of being sustained by the applicable tax authority. Tax positions not deemed to meet the more-likely-than-not threshold are recorded as a tax benefit or expense in the current year. Management had analyzed the Fund’s tax positions taken on federal income tax returns for all open tax years (March 31, 2007 – March 31 , 2010), and has concluded that no provision for federal income tax is required in the Fund’s financial statements.

Class Accounting — Investment income and common expenses are allocated to the various classes of the Fund on the basis of “settled shares” of each class in relation to the net assets of the Fund. Realized and unrealized gain (loss) on investments are allocated to the various classes of the Fund on the basis of daily net assets of each class. Distribution expenses relating to a specific class are charged directly to that class.

Use of Estimates — The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates and such differences could be material.

20

Other — Expenses directly attributable to the Fund are charged directly to the Fund. Other expenses common to various funds within the Delaware Investments® Family of Funds are generally allocated amongst such funds on the basis of average net assets. Management fees and some other expenses are paid monthly. Security transactions are recorded on the date the securities are purchased or sold (trade date) for financial reporting purposes. Costs used in calculating realized gains and losses on the sale of investment securities are those of the specific securities sold. Interest income is recorded on the accrual basis. Discounts and premiums a re amortized to interest income over the lives of the respective securities. The Fund declares dividends daily from net investment income and pays such dividends monthly and declares and pays distributions from net realized gain on investments, if any, annually. Such dividends and distributions, if any, are recorded on the ex-dividend date.

The Fund may receive earnings credits from its custodian when positive cash balances are maintained, which are used to offset custody fees. There were no earnings credits for the six months ended September 30, 2010.

The Fund may receive earnings credits from its transfer agent when positive cash balances are maintained, which may be used to offset transfer agent fees. The expense paid under this arrangement is included in dividend disbursing and transfer agent fees and expenses on the statement of operations with the corresponding expense offset shown as “expense paid indirectly.” For the six months ended September 30, 2010, the Fund earned $ 503 under this agreement.

2. Investment Management, Administration Agreements and Other Transactions with Affiliates

In accordance with the terms of its investment management agreement, the Fund pays Delaware Management Company (DMC), a series of Delaware Management Business Trust and the investment manager, an annual fee which is calculated daily at the rate of 0.45% on the first $500 million of average daily net assets of the Fund, 0.40% on the next $500 million, 0.35% on the next $1.5 billion, and 0.30% on average daily net assets in excess of $2.5 billion.

Effective March 5, 2010, DMC had voluntarily agreed to waive that portion, if any, of its management fee and reimburse the Fund to the extent necessary to ensure that total annual operating expenses (excluding any 12b-1 plan expenses and certain other expenses), did not exceed 0.34% of average daily net assets of the Fund until such time as the waiver is discontinued. Beginning May 26, 2010, DMC voluntarily reduced the limitation two times, as shown in the chart below.

Voluntary	Effective
Limitation	Date
0.29%	5/26/10
0.24%	6/17/10
0.24%	7/29/10

21

Notes to financial statements
Delaware Cash Reserve® Fund

2. Investment Management, Administration Agreements and Other Transactions with Affiliates (continued)

For purposes of these waivers and reimbursements, nonroutine expenses may also include such additional costs and expenses, as may be agreed upon from time to time by the Fund’s Board of Trustees (Board) and DMC. These expense waivers may be discontinued at any time because they are voluntary, and apply only to expenses paid directly by the Fund.

Delaware Service Company, Inc. (DSC), an affiliate of DMC, provides fund accounting and financial administration oversight services to the Fund. For these services, the Fund pays DSC fees based on the aggregate daily net assets of the Delaware Investments® Family of Funds at the following annual rate: 0.0050% of the first $30 billion; 0.0045% of the next $10 billion; 0.0040% of the next $10 billion; and 0.0025% of aggregate average daily net assets in excess of $50 billion. The fees payable to DSC under the service agreement described above are allocated among all Funds in the Delaware Investments® Family of Funds on a relative net asset value basis. For the six months ended September 30, 2010, the Fund was charged $ 7,683 for these services.

DSC also provides dividend disbursing and transfer agency services. The Fund pays DSC a monthly fee based on the number of shareholder accounts for dividend disbursing and transfer agent services.

Pursuant to a distribution agreement and distribution plan, the Fund pays Delaware Distributors, L.P. (DDLP), the distributor and an affiliate of DMC, an annual distribution and service fee not to exceed 0.30% of the average daily net assets of the Consultant Class shares and 1.00% of the average daily net assets of the Class B and C shares. Class A shares pay no distribution and service expenses. DDLP has elected to waive distribution and service fees to 0.00% of average daily net assets for Class B, Class C and Consultant Class shares. These waivers may be discontinued at any time because they are voluntary.

At September 30, 2010, the Fund had receivables due from or liabilities payable to affiliates as follows:

Dividend disbursing, transfer agent and fund accounting
oversight fees and other expenses payable to DSC	$	(18,967	)
Other expenses payable to DMC and affiliates*		(20,898	)
Receivable from DMC under expense
limitation agreement		20,154

* DMC, as part of its administrative services, pays operating expenses on behalf of the Fund and is reimbursed on a periodic basis. Such expenses include items such as printing of shareholder reports, fees for audit, legal and tax services, registration fees and trustees’ fees.

As provided in the investment management agreement, the Fund bears the cost of certain legal and tax services, including internal legal and tax services provided to the Fund by DMC and/or its affiliates’ employees. For the six months ended September 30, 2010, the Fund was charged $336 for internal legal and tax services provided by DMC and/or its affiliates’ employees.

22

For the six months ended September 30, 2010, DDLP received gross CDSC commissions of $6,972 and $445 on redemption of the Fund’s Class B and Class C shares, respectively, and these commissions were entirely used to offset up-front commissions previously paid by DDLP to broker/dealers on sales of those shares.

Trustees’ fees include expenses accrued by the Fund for each Trustee’s retainer and meeting fees. Certain officers of DMC, DSC and DDLP are officers and/or Trustees of the Trust. These officers and Trustees are paid no compensation by the Fund.

3. Investments

U.S. GAAP defines fair value as the price that the Fund would receive to sell an asset or pay to transfer a liability in an orderly transaction between market participants at the measurement date under current market conditions. A three level hierarchy for fair value measurements has been established based upon the transparency of inputs to the valuation of an asset or liability. Inputs may be observable or unobservable and refer broadly to the assumptions that market participants would use in pricing the asset or liability. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions that market participants would use in pricing the asset or liability developed based on the best information available under the circumstance s. The Fund’s investment in its entirety is assigned a level based upon the observability of the inputs which are significant to the overall valuation. The three level hierarchy of inputs is summarized below.

Level 1 –	inputs are quoted prices in active markets for identical investments (i.e. equity securities, open-end investment companies, futures contracts, options contracts)
Level 2 –	other observable inputs (including, but not limited to: quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market-corroborated inputs) (i.e. debt securities, government securities, swap contracts, foreign currency exchange contracts)
Level 3 –	inputs are significant unobservable inputs (including the Fund’s own assumptions used to determine the fair value of investments) (i.e. broker-quoted securities, fair valued securities)

The following table summarizes the valuation of the Fund’s investments by fair value hierarchy levels as of September 30, 2010:

	Level 2
Agency Securities	$	7,499,941
Corporate Bonds		12,739,071
Municipal Bonds		61,145,000
Short-Term		218,962,415
Total	$	300,346,427

23

Notes to financial statements
Delaware Cash Reserve® Fund

3. Investments (continued)

There were no Level 1 and Level 3 securities at the beginning or end of the period.

In January 2010, the Financial Accounting Standards Board issued an Accounting Standards Update, Improving Disclosures about Fair Value Measurements, which introduced new disclosure requirements and clarified certain existing disclosure requirements around fair value measurements currently presented above. The new disclosures and clarifications of existing disclosures are generally effective for the Fund’s fiscal year ending March 31, 2011 and interim periods therein. During the six months ended September 30, 2010, there were no transfers between Level 1 investments, Level 2 investments or Level 3 investments that had a material impact to the Fund.

4. Dividend Information

Income distributions are determined in accordance with federal income tax regulations, which may differ from U.S. GAAP. Additionally, distributions from net short-term gains on sales of investment securities are treated as ordinary income for federal income tax purposes. The tax character of dividends paid during the six months ended September 30, 2010 and year ended March 31, 2010 was as follows:

	Six Months Ended	Year Ended
	9/30/10*	3/31/10
Ordinary income	$80,344	$378,584

*Tax information for the period ended September 30, 2010 is an estimate and the tax character of dividends and distributions may be redesignated at the fiscal year end.

5. Components of Net Assets on a Tax Basis

The components of net assets are estimated since final tax characteristics cannot be determined until fiscal year end. As of September 30, 2010, the estimated components of net assets on a tax basis were as follows:

Shares of beneficial interest	$	300,505,437
Undistributed ordinary income		2,980
Distribution payable		(2,980	)
Capital loss carryforwards as of 3/31/10		(331,723	)
Net assets	$	300,173,714

For federal income tax purposes, capital loss carryforwards may be carried forward and applied against future capital gains. Capital loss carryforwards remaining at March 31, 2010 will expire as follows: $331,723 expires in 2011.

24

6. Capital Shares

Transactions in capital shares were as follows:

	Six Months Ended		Year Ended
	9/30/10		3/31/10
Shares sold:
Class A	59,329,417		390,391,505
Class B	809,582		1,098,172
Class C	4,603,472		6,196,655
Consultant Class	1,733,263		5,226,005
Shares issued upon reinvestment of dividends:
Class A	74,214		351,425
Class B	988		5,503
Class C	2,311		10,197
Consultant Class	2,435		11,070
	66,555,682		403,290,532
Shares repurchased:
Class A	(69,589,116	)	(534,760,733	)
Class B	(1,493,303	)	(6,148,653	)
Class C	(4,554,951	)	(12,373,900	)
Consultant Class	(2,637,019	)	(9,056,397	)
	(78,274,389	)	(562,339,683	)
Net decrease	(11,718,707	)	(159,049,151	)

For the six months ended September 30, 2010 and the year ended March 31, 2010, 409,678 Class B shares were converted to 409,678 Consultant Class shares valued at $409,678 and 926,037 Class B shares were converted to 926,037 Consultant Class shares valued at $926,037, respectively. The respective amounts are included in Class B redemptions and Consultant Class subscriptions in the table above and the statements of changes in net assets.

7. Line of Credit

The Fund, along with certain other funds in the Delaware Investments® Family of Funds (Participants), participates in a $35,000,000 revolving line of credit with The Bank of New York Mellon to be used for temporary or emergency purposes as an additional source of liquidity to fund redemptions of investor shares. Under the agreement, the Participants are charged an annual commitment fee, which is allocated across the Participants on the basis of each Participant’s allocation of the entire facility. The Participants may borrow up to a maximum of one third of their net assets under the agreement. The agreement expires on November 16, 2010. The Fund had no amounts outstanding as of September 30, 2010, or at any time during the period then ended.

25

Notes to financial statements
Delaware Cash Reserve® Fund

8. Credit and Market Risks

An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.

The Fund may invest up to 10% of its net assets in illiquid securities, which may include securities with contractual restrictions on resale, securities exempt from registration under Rule 144A of the Securities Act of 1933 (Act), as amended, and other securities which may not be readily marketable. The relative illiquidity of these securities may impair the Fund from disposing of them in a timely manner and at a fair price when it is necessary or desirable to do so. While maintaining oversight, the Fund’s Board has delegated to DMC the day-to-day functions of determining whether individual securities are liquid for purposes of the Fund’s limitation on investments in illiquid assets. The Fund may also invest in securities exempt from registration under Section 4(2) of the Act, which exempts from registration transactions by an issuer not involving any public offering. Securities eligible for resale pursuant to Rule 144A, which are determined to be liquid, are not subject to the Fund’s 10% limit on investments in illiquid securities. As of September 30, 2010, there were no Section 4(2) and/or Rule 144A securities and no securities have been determined to be illiquid under the Fund’s Liquidity Procedures.

9. Contractual Obligations

The Fund enters into contracts in the normal course of business that contain a variety of indemnifications. The Fund’s maximum exposure under these arrangements is unknown. However, the Fund has not had prior claims or losses pursuant to these contracts. Management has reviewed the Fund’s existing contracts and expects the risk of loss to be remote.

10. Subsequent Events

Management has determined no material events or transactions occurred subsequent to September 30, 2010 that would require recognition or disclosure in the Fund’s financial statements.

26

Other Fund information
(Unaudited)
Delaware Cash Reserve Fund

Change in Independent Registered Public Accounting Firm

Due to independence matters under the Securities and Exchange Commission’s auditor independence rules relating to the January 4, 2010 acquisition of Delaware Investments (including DMC, DDLP and DSC) by Macquarie Group, Ernst & Young LLP (“E&Y”) has resignedas the independent registered public accounting firm for Delaware Group® Cash Reserve (the “Trust”) effective May 27, 2010. At a meeting held on February 18, 2010, the Board of Trustees of the Trust, upon recommendation of the Audit Committee, selected PricewaterhouseCoopers LLP (“PwC”) to serve as the independent registered public accounting firm for the Fund for the fiscal year ending March 31, 201 1. During the fiscal years ended March 31, 2010 and 2009, E&Y’s audit reports on the financial statements of the Fund did not contain any adverse opinion or disclaimer of opinion, nor were they qualified or modified as to uncertainty, audit scope, or accounting principles. In addition, there were no disagreements between the Fund and E&Y on accounting principles, financial statements disclosures or audit scope, which, if not resolved to the satisfaction of E&Y, would have caused them to make reference to the disagreement in their reports. Neither the Fund nor anyone on its behalf has consulted with PwC at any time prior to their selection with respect to the application of accounting principles to a specified transaction, either completed or proposed or the type of audit opinion that might be rendered on the Fund’s financial statements.

27

About the organization

Board of trustees
Patrick P. Coyne Chairman, President, and Chief Executive Officer Delaware Investments® Family of Funds Philadelphia, PA Thomas L. Bennett Private Investor Rosemont, PA John A. Fry President Drexel University Philadelphia, PA	Anthony D. Knerr Founder and Managing Director Anthony Knerr & Associates New York, NY Lucinda S. Landreth Former Chief Investment Officer Assurant, Inc. Philadelphia, PA	Ann R. Leven Consultant ARL Associates New York, NY Thomas F. Madison President and Chief Executive Officer MLM Partners, Inc. Minneapolis, MN	Janet L. Yeomans Vice President and Treasurer 3M Corporation St. Paul, MN J. Richard Zecher Founder Investor Analytics Scottsdale, AZ
Affiliated officers
David F. Connor Vice President, Deputy General Counsel, and Secretary Delaware Investments Family of Funds Philadelphia, PA	Daniel V. Geatens Vice President and Treasurer Delaware Investments Family of Funds Philadelphia, PA	David P. O’Connor Senior Vice President, General Counsel, and Chief Legal Officer Delaware Investments Family of Funds Philadelphia, PA	Richard Salus Senior Vice President and Chief Financial Officer Delaware Investments Family of Funds Philadelphia, PA

This semiannual report is for the information of Delaware Cash Reserve Fund shareholders, but it may be used with prospective investors when preceded or accompanied by a current prospectus for Delaware Cash Reserve Fund and the Delaware Investments Fund fact sheet for the most recently completed calendar quarter. These documents are available at www.delawareinvestments.com.

The prospectus sets forth details about charges, expenses, investment objectives, and operating policies of the investment company.

Delaware Investments is the marketing name of Delaware Management Holdings, Inc. and its subsidiaries.

The Fund files its complete schedule of portfolio holdings with the Securities and Exchange Commission (SEC) for the first and third quarters of each fiscal year on Form N-Q. The Fund’s Forms N-Q, as well as a description of the policies and procedures that the Fund uses to determine how to vote proxies (if any) relating to portfolio securities are available without charge (i) upon request, by calling 800 523-1918; and (ii) on the SEC’s Web site at www.sec.gov. In addition, a description of the policies and procedures that the Fund uses to determine how to vote proxies (if any) relating to portfolio securities and the Fund’s Schedule of Investments are available without charge on the Fund’s Web site at www.delawareinvestments.com. The Fund’s Forms N-Q may be reviewed and copied at the SEC’s Public Reference Room in Washington, D.C.; information on the operation of the Public Reference Room may be obtaine d by calling 800 SEC-0330.

Information (if any) regarding how the Fund voted proxies relating to portfolio securities during the most recently disclosed 12-month period ended June 30 is available without charge (i) through the Fund’s Web site at www.delawareinvestments.com; and (ii) on the SEC’s Web site at www.sec.gov.

28

Item 2. Code of Ethics

     Not applicable.

Item 3. Audit Committee Financial Expert

Not applicable.

Item 4. Principal Accountant Fees and Services

Not applicable.

Item 5. Audit Committee of Listed Registrants

Not applicable.

Item 6. Investments

(a) Included as part of report to shareholders filed under Item 1 of this Form N-CSR.

(b) Divestment of securities in accordance with Section 13(c) of the Investment Company Act of 1940.

Not applicable.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies

Not applicable.

Item 8. Portfolio Managers of Closed-End Management Investment Companies

Not applicable.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Companies and Affiliated Purchasers

Not applicable.

Item 10. Submission of Matters to a Vote of Security Holders

Not applicable.

Item 11. Controls and Procedures

The registrant’s principal executive officer and principal financial officer have evaluated the registrant’s disclosure controls and procedures within 90 days of the filing of this report and have concluded that they are effective in providing reasonable assurance that the information required to be disclosed by the registrant in its reports or statements filed under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission.

     There were no significant changes in the registrant’s internal control over financial reporting that occurred during the second fiscal quarter of the period covered by the report to stockholders included herein (i.e., the registrant’s second fiscal quarter) that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 12. Exhibits

(a)	(1) Code of Ethics
	Not applicable.
	(2) Certifications of Principal Executive Officer and Principal Financial Officer pursuant to Rule 30a-2 under the Investment Company Act of 1940 are attached hereto as Exhibit 99.CERT.
	(3) Written solicitations to purchase securities pursuant to Rule 23c-1 under the Securities Exchange Act of 1934.
	Not applicable.
(b)	Certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 are furnished herewith as Exhibit 99.906CERT.

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.

DELAWARE GROUP® CASH RESERVE

/s/ PATRICK P. COYNE
By:	Patrick P. Coyne
Title:	Chief Executive Officer
Date:	December 1, 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.

/s/ PATRICK P. COYNE
By:	Patrick P. Coyne
Title:	Chief Executive Officer
Date:	December 1, 2010
/s/ RICHARD SALUS
By:	Richard Salus
Title:	Chief Financial Officer
Date:	December 1, 2010