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: 811-2071 Exact name of registrant as specified in charter: Delaware Group Income Funds 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: July 31 Date of reporting period: July 31, 2006 Item 1. Reports to Stockholders Annual Report Delaware Corporate Bond Fund Delaware Extended Duration Bond Fund July 31, 2006 Fixed income mutual funds [DELAWARE INVESTMENTS LOGO] [LOGO] POWERED BY RESEARCH(R) <page> Table of contents > Portfolio management review .................................................1 > Performance summary .........................................................4 > Disclosure of Fund expenses .................................................8 > Sector/Country allocation and credit rating breakdown .......................9 > Statements of net assets ...................................................11 > Statements of operations ...................................................25 > Statements of changes in net assets ........................................26 > Financial highlights .......................................................27 > Notes to financial statements ..............................................37 > Report of independent registered public accounting firm ....................42 > Other Fund information .....................................................43 > Board of trustees/directors and officers addendum ..........................46 > About the organization .....................................................48 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. (C)2006 Delaware Distributors, L.P. <page> Portfolio management review Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund July 31, 2006 Ryan K. Brist Lead Portfolio Manager of the Funds What was the investment climate for investment-grade corporate bonds during the fiscal year ended July 31, 2006? In general, the fiscal year 2006 proved to be a difficult one for investment-grade bond holders as interest rates rose. Fundamentals remained intact for investment-grade corporate bonds, although rising interest rates, a flattening treasury yield curve, and continued shareholder-friendly actions did not foster an environment supportive of the asset class. During the 12-month period, the U.S. Federal Reserve (Fed) continued to increase interest rates, pushing its overnight lending rate target from 3.25% to 5.25%. One significant effect of the Fed's actions was a flatter yield curve. For example, as the fiscal period began, the 2-year Treasury note yielded 0.27% less than its 10-year counterpart. By July 31, 2006, that gap had compressed to 0.02% (source: Bloomberg). In addition, the general continuation of shareholder friendly actions, such as dividend increases, share repurchases, corporate mergers, and leveraged buyouts, demonstrated a preference among some corporate management teams for attempting to create shareholder value over paying down debt. How did the funds perform for the fiscal year ended July 31, 2006? Delaware Corporate Bond Fund Class A shares returned 0.70% at net asset value and -3.79% at maximum offer price (both returns include distributions reinvested) for the fiscal year ended July 31, 2006. By comparison, the funds comprising the Lipper Corporate Debt BBB-rated Funds Average category returned 0.81% for the same period. The Fund's benchmark, the Lehman Brothers U.S. Credit Index, returned 0.37%. For complete, annualized performance for Delaware Corporate Bond Fund, please see the table on page 4. With its longer-term profiles, Delaware Extended Duration Bond Fund did not perform as well as Delaware Corporate Bond Fund in the rising interest rate environment. Class A shares returned -2.89% at net asset value and -7.26% at maximum offer price (both returns include distributions reinvested) for the fiscal year ended July 31, 2006. By comparison, the funds comprising the Lipper Corporate Debt BBB-Rated Funds Average category returned 0.81% for the same period. The Fund's benchmark, the Lehman Brothers Long U.S. Credit Index, returned -3.03%. For complete, annualized performance for Delaware Extended Duration Bond Fund, please see the table on page 6. What strategies did you implement for the funds during the fiscal year? One of our primary strategies was simply to invest in, or remain invested in, companies that we believed were fundamentally sound and that we believed would perform well regardless of general economic or industry-related trends. We continued to invest in a diverse mix of investment grade securities, with a heavier weighting than our benchmark indices in BBB-rated bonds. We also invested a portion of both funds' assets in high yield securities, emerging market securities, and non-U.S. dollar denominated debt. How did your approach to credit-quality selection influence performance? Within the investment grade universe (bonds rated BBB and above), higher-quality bonds generally performed best. Therefore, our decision to invest more heavily than the benchmark in bonds with BBB-quality ratings modestly detracted from performance. On the other hand, our strategy of investing about 20% of each Fund's portfolio in high yield securities during the year helped both funds outperform their respective benchmarks at net asset value. Generally, high yield bonds continued to perform well, even as the 1 <page> Portfolio management review Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund investment-grade universe underperformed. One reason for the success of the high yield sector is that this asset class tends to be less sensitive to interest rate movement. In addition, low default rates and solid demand supported this asset class. What specific factors contributed positively to performance? High yielding automobile bonds (General Motors, for example) and other specific bond issues (GMAC, Residential Capital, and Visteon) made positive contributions to the fiscal year returns of both funds. After suffering deep declines in the fourth calendar quarter of 2005, auto industry bonds rebounded nicely in 2006 because of new cost-cutting efforts in the industry, as well as product improvement initiatives. Among investment grade bonds, the funds' continued to invest more heavily in the airline sector than what is represented in the benchmark indices. Airlines were the top-performing sector within the benchmarks for the period. Specifically, our positions in American Airlines and Continental Airlines performed well. The funds also realized solid performance from the insurance sector, where investments in property and casualty insurers contributed to performance as the sector recovered from weakness after the 2005 hurricanes. What factors detracted from performance? Poor performance during the year was primarily attributable to the selection of individual securities, rather than each Fund's sector positioning or any industry-wide issues. For example, several companies announced that they would engage in leveraged buyouts, and this shareholder friendly news led to poor performance for some of those companies' bonds. Frequently, bondholders will view dividend declarations negatively, as it signals that the company has opted - - at least in the short term - to use its available cash to reward its equity shareholders, rather than to pay off the company's debt. Specifically, our positions in supermarket retailer Albertson's (later sold by the funds) and energy provider Kinder Morgan each posted disappointing results. Similarly, paper manufacturer Georgia Pacific positions were sold at a loss and detracted from Fund performance. How were the Funds positioned at the end of the fiscal year? Our focus at the end of the fiscal year was on two areas that we believed to be attractive from a valuation standpoint: hybrid securities, which typically combine equity and debt characteristics, and Tier 1 securities, which reflect core capital among financial institutions. In particular, we were focused at fiscal year end on securities issued by highly rated insurance companies and U.S., European, and Japanese banks. Also by year end, our strategy evolved to accommodate changes in the investment environment. The rationale for the funds' allocations to high yield securities at fiscal year end was two-fold. First, we continued to favor a heavier weighting in high quality, shorter-term securities that have the advantage of higher yield over comparative investment-grade debt. We continued to favor bank loans because they offer attractive yields with better recovery rates, more covenant protection, and lower default risk than comparable investment-grade debt. Second, we anticipate exploring the market for securities we believe to be undervalued, specifically in the automotive industry and in certain leveraged buyout situations. As the fiscal year drew to a close, we had also slightly extended the duration in the funds. As of July 31, 2006, our duration strategy was neutral compared to the benchmarks. We implemented this posture due to the market's expectation for a near-term conclusion to the Federal Reserve's rate-tightening campaign. 2 <page> Performance summary Delaware Corporate Bond Fund The performance data quoted represent past performance; past performance does not guarantee future results. Investment return and principal value will fluctuate so your shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance data quoted. A rise or fall in interest rates can have a significant impact on bond prices and the net asset value (NAV) of the Fund. Funds that invest in bonds can lose their value, as interest rates can rise, and an investor can lose principal. Please obtain the performance data for the most recent month end by calling 800 523-1918 or visiting our Web site at www.delawareinvestments.com/performance. You should consider the investment objectives, risks, charges, and expenses of the investment carefully before investing. The Delaware Corporate Bond Fund prospectus contains this and other important information about the investment company. Please request a prospectus by calling 800 523-1918 or obtain one online at www.delawareinvestments.com. Read it carefully before you invest or send money. Performance includes reinvestment of all distributions. Fund Performance Average Annual Total Returns Through July 31, 2006 1 Year 5 Years Lifetime ________________________________________________________________________________ Class A (Est. 9/15/98) Excluding Sales Charge +0.70% +7.04% +6.47% Including Sales Charge -3.79% +6.07% +5.84% ________________________________________________________________________________ Class B (Est. 9/15/98) Excluding Sales Charge +0.13% +6.25% +5.70% Including Sales Charge -3.68% +6.02% +5.70% ________________________________________________________________________________ Class C (Est. 9/15/98) Excluding Sales Charge -0.05% +6.25% +5.70% Including Sales Charge -1.00% +6.25% +5.70% ________________________________________________________________________________ Returns reflect the reinvestment of all distributions and any applicable sales charges as noted below. Performance for Class B and C shares, excluding sales charges, assumes either contingent deferred sales charges did not apply or the investment was not redeemed. The Fund offers Class A, B, C, R, and Institutional Class shares. Class A shares are sold with a front-end sales charge of up to 4.50% and have an annual distribution and service fee of up to 0.30%. The distributor has contracted to limit the amount to 0.25% through November 30, 2006. Class B shares are sold with a contingent deferred sales charge that declines from 4% to zero depending upon the period of time the shares are held. Class B shares will automatically convert to Class A shares on a quarterly basis approximately eight years after purchase. They are also subject to an annual distribution and service fee of 1%. Class C shares are sold with a contingent deferred sales charge of 1% if redeemed during the first 12 months. They are also subject to an annual distribution and service fee of 1%. The average annual total returns for the one-year and lifetime periods ended July 31, 2006 for Delaware Corporate Bond Fund's Class R shares were +0.45% and +3.53%, respectively. Class R shares were first made available on June 2, 2003 and are available only for certain retirement plan products. They are sold without a sales charge and have an annual distribution and service fee of 0.60%. The distributor has contracted to limit the amount to 0.50% through November 30, 2006. The average annual total returns for the 1-year, 5-year, and lifetime periods ended July 31, 2006 for Delaware Corporate Bond Fund's Institutional Class were +0.95%, +7.28%, and +6.71%, respectively. Institutional Class shares were first made available on September 15, 1998 and are available without sales or asset-based distribution charges only to certain eligible institutional accounts. An expense limitation was in effect for all classes of Delaware Corporate Bond Fund during some periods shown. Performance would have been lower had the expense limitation not been in effect. The performance table does not reflect the deduction of taxes the shareholder would pay on Fund distributions or redemptions of Fund shares. 4 <page> Fund basics As of July 31, 2006 ________________________________________________________________________________ Fund objective ________________________________________________________________________________ The Fund seeks to provide investors with total return. ________________________________________________________________________________ Total Fund net assets ________________________________________________________________________________ $569 million ________________________________________________________________________________ Number of holdings ________________________________________________________________________________ 357 ________________________________________________________________________________ Fund start date ________________________________________________________________________________ September 15, 1998 ________________________________________________________________________________ Your fund manager ________________________________________________________________________________ Prior to joining Delaware Investments in 2000, Ryan K. Brist, CFA, was a member of the portfolio management team that managed Conseco Capital Management's investment grade Core and Core Plus products for five years. He previously worked in investment banking as an analyst for Dean Witter Reynolds in New York. Brist holds a bachelor's degree in finance from Indiana University. ________________________________________________________________________________ Nasdaq symbols CUSIPs ________________________________________________________________________________ Class A DGCAX 245908785 Class B DGCBX 245908777 Class C DGCCX 245908769 Class R DGCRX 245908744 Institutional Class DGCIX 245908751 [PERFORMANCE OF A $10,000 INVESTMENT LINE CHART] Chart assumes $10,000 invested on September 15, 1998 and includes the effect of a 4.50% front-end sales charge and the reinvestment of all distributions. Performance of other Fund classes will vary due to differing charges and expenses. The chart also assumes $10,000 invested in the Lehman Brothers U.S. Credit Index at that month's end, September 30, 1998. After September 30,1998, returns plotted on the chart were as of the last day of each month shown. The Lehman Brothers U.S. Credit Index is an unmanaged composite of investment grade corporate and non-corporate bonds. An index is unmanaged and does not reflect the costs of operating a mutual fund, such as the costs of buying, selling, and holding securities. You cannot invest directly in an index. The performance graph does not reflect the deduction of taxes the shareholder would pay on Fund distributions or redemptions of Fund shares. An expense limitation was in effect for all classes of Delaware Corporate Bond Fund during the periods shown. Performance would have been lower had the expense limitation not been in effect. Past performance is not a guarantee of future results. 5 <page> Performance summary Delaware Extended Duration Bond Fund The performance data quoted represent past performance; past performance does not guarantee future results. Investment return and principal value will fluctuate so your shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance data quoted. A rise or fall in interest rates can have a significant impact on bond prices and the net asset value (NAV) of the Fund. Funds that invest in bonds can lose their value, as interest rates can rise, and an investor can lose principal. Please obtain the performance data for the most recent month end by calling 800 523-1918 or visiting our Web site at www.delawareinvestments.com/performance. You should consider the investment objectives, risks, charges, and expenses of the investment carefully before investing. The Delaware Extended Duration Bond Fund prospectus contains this and other important information about the investment company. Please request a prospectus by calling 800 523-1918 or obtain one online at www.delawareinvestments.com. Read it carefully before you invest or send money. Performance includes reinvestment of all distributions. Fund Performance Average Annual Total Returns Through July 31, 2006 1 Year 5 Years Lifetime ________________________________________________________________________________ Class A (Est. 9/15/98) Excluding Sales Charge -2.89% +8.14% +6.97% Including Sales Charge -7.26% +7.14% +6.35% ________________________________________________________________________________ Class B (Est. 9/15/98) Excluding Sales Charge -3.45% +7.35% +6.19% Including Sales Charge -7.10% +7.12% +6.19% ________________________________________________________________________________ Class C (Est. 9/15/98) Excluding Sales Charge -3.45% +7.34% +6.20% Including Sales Charge -4.36% +7.34% +6.20% ________________________________________________________________________________ Returns reflect the reinvestment of all distributions and any applicable sales charges as noted below. Performance for Class B and C shares, excluding sales charges, assumes either contingent deferred sales charges did not apply or the investment was not redeemed. The Fund offers Class A, B, C, R, and Institutional Class shares. Class A shares are sold with a front-end sales charge of up to 4.50% and have an annual distribution and service fee of up to 0.30%. The distributor has contracted to limit the amount to 0.25% through November 30, 2006. Class B shares are sold with a contingent deferred sales charge that declines from 4% to zero depending upon the period of time the shares are held. Class B shares will automatically convert to Class A shares on a quarterly basis approximately eight years after purchase. They are also subject to an annual distribution and service fee of 1%. Class C shares are sold with a contingent deferred sales charge of 1% if redeemed during the first 12 months. They are also subject to an annual distribution and service fee of 1%. The cumulative total return for the lifetime period ended July 31, 2006 for Delaware Extended Duration Bond Fund Class R shares was -2.67%. Class R shares were first made available on October 1, 2005 and are available only for certain retirement plan products. They are sold without a sales charge and have an annual distribution and service fee of 0.60%. The distributor has contracted to limit the amount to 0.50% through November 30, 2006. The average annual total returns for the 1-year, 5-year, and lifetime periods ended July 31, 2006 for Delaware Extended Duration Bond Fund's Institutional Class were -2.48%, +8.43%, and +7.25%, respectively. Institutional Class shares were first made available on September 15, 1998 and are available without sales or asset-based distribution charges only to certain eligible institutional accounts. An expense limitation was in effect for all classes of Delaware Extended Duration Bond Fund during the periods shown. Performance would have been lower had the expense limitation not been in effect. The performance table does not reflect the deduction of taxes the shareholder would pay on Fund distributions or redemptions of Fund shares. 6 <page> Fund basics As of July 31, 2006 ________________________________________________________________________________ Fund objective ________________________________________________________________________________ The Fund seeks to provide investors with total return. ________________________________________________________________________________ Total Fund net assets ________________________________________________________________________________ $179 million ________________________________________________________________________________ Number of holdings ________________________________________________________________________________ 266 ________________________________________________________________________________ Fund start date ________________________________________________________________________________ September 15, 1998 ________________________________________________________________________________ Your fund manager ________________________________________________________________________________ Prior to joining Delaware Investments in 2000, Ryan K. Brist, CFA, was a member of the portfolio management team that managed Conseco Capital Management's investment grade Core and Core Plus products for five years. He previously worked in investment banking as an analyst for Dean Witter Reynolds in New York. Brist holds a bachelor's degree in finance from Indiana University. ________________________________________________________________________________ Nasdaq symbols CUSIPs ________________________________________________________________________________ Class A DEEAX 245908835 Class B DEEBX 245908827 Class C DEECX 245908819 Class R DEERX 245908728 Institutional Class DEEIX 245908793 [PERFORMANCE OF A $10,000 INVESTMENT LINE CHART] Chart assumes $10,000 invested on September 15, 1998 and includes the effect of a 4.50% front-end sales charge and the reinvestment of all distributions. Performance of other Fund classes will vary due to differing charges and expenses. The chart also assumes $10,000 invested in the Lehman Brothers Long U.S. Credit Index at that month's end, September 30, 1998. After September 30, 1998, returns plotted on the chart were as of the last day of each month shown. The Lehman Brothers Long U.S. Credit Index is an unmanaged composite of corporate and non-corporate fixed income securities that are rated investment grade and have at least 10 years to final maturity. An index is unmanaged and does not reflect the costs of operating a mutual fund, such as the costs of buying, selling, and holding securities. You cannot invest directly in an index. The performance graph does not reflect the deduction of taxes the shareholder would pay on Fund distributions or redemptions of Fund shares. An expense limitation was in effect for all classes of Delaware Extended Duration Bond Fund during the periods shown. Performance would have been lower had the expense limitation not been in effect. Past performance is not a guarantee of future results. 7 <page> Disclosure of Fund expenses For the period February 1, 2006 to July 31, 2006 As a shareholder of a 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. The following examples are intended to help you understand your ongoing costs (in dollars) of investing in a Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The examples are based on an investment of $1,000 invested at the beginning of the period and held for the entire period February 1, 2006 to July 31, 2006. Actual Expenses The first section of the tables 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 tables 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 Funds 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 tables 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 each 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 Funds' actual expenses shown in the tables reflect fee waivers in effect. The expenses shown in each table assume reinvestment of all dividends and distributions. "Expenses Paid During Period" are equal to the Funds' annualized expense ratios, multiplied by the average account value over the period, multiplied by 181/365 (to reflect the one-half year period). Delaware Corporate Bond Fund Expense Analysis of an Investment of $1,000 Expenses Beginning Ending Paid During Account Account Annualized Period Value Value Expense 2/1/06 to 2/1/06 7/31/06 Ratio 7/31/06 ________________________________________________________________________________ Actual Fund Return Class A $1,000.00 $1,005.70 0.82% $4.08 Class B 1,000.00 1,002.00 1.57% 7.79 Class C 1,000.00 1,002.00 1.57% 7.79 Class R 1,000.00 1,004.40 1.07% 5.32 Institutional Class 1,000.00 1,005.10 0.57% 2.83 ________________________________________________________________________________ Hypothetical 5% Return (5% return before expenses) Class A $1,000.00 $1,020.73 0.82% $4.11 Class B 1,000.00 1,017.01 1.57% 7.85 Class C 1,000.00 1,017.01 1.57% 7.85 Class R 1,000.00 1,019.49 1.07% 5.36 Institutional Class 1,000.00 1,021.97 0.57% 2.86 ________________________________________________________________________________ Delaware Extended Duration Bond Fund Expense Analysis of an Investment of $1,000 Expenses Beginning Ending Paid During Account Account Annualized Period Value Value Expense 2/1/06 to 2/1/06 7/31/06 Ratio 7/31/06 ________________________________________________________________________________ Actual Fund Return Class A $1,000.00 $978.50 0.80% $3.92 Class B 1,000.00 976.70 1.55% 7.60 Class C 1,000.00 974.90 1.55% 7.59 Class R 1,000.00 976.80 1.05% 5.15 Institutional Class 1,000.00 981.50 0.55% 2.70 ________________________________________________________________________________ Hypothetical 5% Return (5% return before expenses) Class A $1,000.00 $1,020.83 0.80% $4.01 Class B 1,000.00 1,017.11 1.55% 7.75 Class C 1,000.00 1,017.11 1.55% 7.75 Class R 1,000.00 1,019.59 1.05% 5.26 Institutional Class 1,000.00 1,022.07 0.55% 2.76 ________________________________________________________________________________ 8 <page> Sector/country allocation and credit rating breakdown Delaware Corporate Bond Fund As of July 31, 2006 Sector designations may be different than the sector designations presented in other Fund materials. Percentage Sector/Country of Net Assets ________________________________________________________________________________ Agency Collateralized Mortgage Obligations 0.42% ________________________________________________________________________________ Agency Mortgage-Backed Securities 0.74% ________________________________________________________________________________ Collateralized Bond Obligations 0.18% ________________________________________________________________________________ Commercial Mortgage-Backed Securities 2.39% ________________________________________________________________________________ Corporate Bonds 78.40% Banking 8.98% Basic Industry 5.66% Brokerage 4.35% Capital Goods 0.36% Communications 11.26% Consumer Cyclical 9.93% Consumer Non-Cyclical 6.46% Electric 6.32% Energy 4.21% Financials 5.65% Insurance 8.43% Natural Gas 3.40% Real Estate 1.23% Technology 0.26% Transportation 1.90% ________________________________________________________________________________ Foreign Agencies 1.09% ________________________________________________________________________________ Municipal Bonds 1.54% ________________________________________________________________________________ Non-Agency Asset-Backed Securities 0.74% ________________________________________________________________________________ Non-Agency Collateralized Mortgage Obligations 2.22% ________________________________________________________________________________ Regional Agency 0.47% ________________________________________________________________________________ Regional Authority 0.47% ________________________________________________________________________________ Senior Secured Loans 4.27% ________________________________________________________________________________ Sovereign Debt 3.21% Brazil 0.70% Colombia 0.37% Germany 0.19% Mexico 0.25% Netherlands 0.14% Poland 0.09% Russia 0.18% Sweden 0.57% United Kingdom 0.51% Venezuela 0.21% ________________________________________________________________________________ Supranational Banks 0.14% ________________________________________________________________________________ U.S. Treasury Obligations 2.60% ________________________________________________________________________________ Common Stock 0.01% ________________________________________________________________________________ Preferred Stock 0.14% ________________________________________________________________________________ Warrant 0.00% ________________________________________________________________________________ Repurchase Agreements 1.11% ________________________________________________________________________________ Total Market Value of Securities 100.14% ________________________________________________________________________________ Liabilities Net of Receivables and Other Assets (0.14%) ________________________________________________________________________________ Total Net Assets 100.00% ________________________________________________________________________________ Credit Rating Breakdown (as a % of fixed income investments) ________________________________________________________________________________ AAA+/AAA 12.42% AA 3.53% A 22.57% BBB 42.24% BB 9.69% B 8.47% CCC 0.43% NR 0.65% ________________________________________________________________________________ Total 100.00% ________________________________________________________________________________ 9 <page> Sector/country allocation and credit rating breakdown Delaware Extended Duration Bond Fund As of July 31, 2006 Sector designations may be different than the sector designations presented in other Fund materials. Percentage Sector/Country of Net Assets ________________________________________________________________________________ Agency Collateralized Mortgage Obligations 0.25% ________________________________________________________________________________ Agency Mortgage-Backed Securities 0.28% ________________________________________________________________________________ Collateralized Bond Obligations 0.03% ________________________________________________________________________________ Commercial Mortgage-Backed Securities 1.90% ________________________________________________________________________________ Corporate Bonds 84.05% Banking 8.30% Basic Industry 6.00% Brokerage 3.85% Capital Goods 0.84% Communications 14.75% Consumer Cyclical 10.56% Consumer Non-Cyclical 7.88% Electric 8.82% Energy 5.70% Financials 3.09% Industrial 0.17% Insurance 8.55% Natural Gas 2.99% Real Estate 0.14% Technology 1.45% Transportation 0.96% ________________________________________________________________________________ Foreign Agencies 1.42% ________________________________________________________________________________ Municipal Bonds 1.23% ________________________________________________________________________________ Non-Agency Asset-Backed Securities 0.22% ________________________________________________________________________________ Non-Agency Collateralized Mortgage Obligations 0.34% ________________________________________________________________________________ Regional Agency 0.47% ________________________________________________________________________________ Regional Authority 0.47% ________________________________________________________________________________ Senior Secured Loans 4.68% ________________________________________________________________________________ Sovereign Debt 3.70% Brazil 0.72% Colombia 0.35% Germany 0.19% Mexico 0.97% Netherlands 0.14% Poland 0.08% Russia 0.08% Sweden 0.50% United Kingdom 0.51% Venezuela 0.16% ________________________________________________________________________________ Supranational Banks 0.12% ________________________________________________________________________________ U.S. Treasury Obligations 1.41% ________________________________________________________________________________ Preferred Stock 0.12% ________________________________________________________________________________ Warrant 0.00% ________________________________________________________________________________ Total Market Value of Securities 100.69% ________________________________________________________________________________ Liabilities Net of Receivables and Other Assets (0.69%) ________________________________________________________________________________ Total Net Assets 100.00% ________________________________________________________________________________ Credit Rating Breakdown (as a % of fixed income investments) ________________________________________________________________________________ AAA+/AAA 6.31% AA 4.31% A 28.25% BBB 41.76% BB 9.86% B 8.53% CCC 0.43% NR 0.55% ________________________________________________________________________________ Total 100.00% ________________________________________________________________________________ 10 <page> Statements of net assets Delaware Corporate Bond Fund July 31, 2006 Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Agency Collateralized Mortgage Obligations - 0.42% ________________________________________________________________________________ Fannie Mae Interest Strip Series 265 2 9.00% 3/1/24 USD 31,915 $ 34,266 Fannie Mae Series 2003-122 AJ 4.50% 2/25/28 513,109 494,272 Freddie Mac Series 2890 PC 5.00% 7/15/30 1,405,000 1,355,571 GNMA Series 2003-5 B 4.486% 10/16/25 540,000 522,617 __________ Total Agency Collateralized Mortgage Obligations (cost $2,500,014) 2,406,726 __________ ________________________________________________________________________________ Agency Mortgage-Backed Securities - 0.74% ________________________________________________________________________________ Fannie Mae S.F. 30 yr 6.00% 8/1/36 TBA 4,050,000 4,024,687 7.00% 2/1/36 203,886 209,174 __________ Total Agency Mortgage-Backed Securities (cost $4,195,642) 4,233,861 __________ ________________________________________________________________________________ =@# Collateralized Bond Obligations - 0.18% ________________________________________________________________________________ Alliance Capital Funding CBO Series 1 A3 144A 5.84% 2/15/10 92,526 92,526 Juniper CBO Series 1999-1A A1 144A 6.83% 4/15/11 411,425 413,794 Putnam CBO II Limited 144A 6.875% 11/8/09 33,330 33,330 Travelers Funding Limited CBO Series 1A A2 144A 6.35% 2/18/14 500,000 498,855 __________ Total Collateralized Bond Obligations (cost $1,063,468) 1,038,505 __________ ________________________________________________________________________________ Commercial Mortgage-Backed Securities - 2.39% ________________________________________________________________________________ ~ Bank of America Commercial Mortgage Securities Series 2006-3 A4 5.889% 7/10/44 4,225,000 4,271,211 # Bear Stearns Commercial Mortgage Securities Series 2004-ESA E 144A 5.064% 5/14/16 1,105,000 1,096,117 # Credit Suisse First Boston Mortgage Securities Series 2001-SPGA A2 144A 6.515% 8/13/18 2,395,000 2,500,993 JPMorgan Chase Commercial Mortgage Securities Series 2002-C2 A2 5.05% 12/12/34 800,000 778,497 ~ Series 2006-LDP7 AJ 6.066% 4/15/45 1,920,000 1,939,949 # Merrill Lynch Mortgage Trust Series 2002-MW1 J 144A 5.695% 7/12/34 325,000 308,258 # Morgan Stanley Capital I Series 1999-FNV1 G 144A 6.12% 3/15/31 510,000 511,316 # Tower 144A Series 2004-2A A 4.232% 12/15/14 935,000 902,110 Series 2006-1 B 5.588% 2/15/36 510,000 504,251 Series 2006-1 C 5.707% 2/15/36 785,000 777,098 __________ Total Commercial Mortgage-Backed Securities (cost $13,629,524) 13,589,800 __________ ________________________________________________________________________________ Corporate Bonds 78.40% ________________________________________________________________________________ Banking - 8.98% BAC Capital Trust XI 6.625% 5/23/36 USD 1,380,000 $ 1,410,701 ~# Banco Santander 144A 5.633% 12/9/09 730,000 730,665 BB&T Capital Trust I 5.85% 8/18/35 1,525,000 1,400,876 BB&T Capital Trust II 6.75% 6/7/36 295,000 304,036 Citigroup 6.625% 6/15/32 330,000 349,471 # CoreStates Capital I Trust 144A 8.00% 12/15/26 630,000 658,050 ~# Glitnir Banki 144A 6.693% 6/15/16 2,530,000 2,539,184 ~# HBOS 144A 5.92% 9/29/49 1,400,000 1,315,874 # ICICI Bank 144A 5.75% 11/16/10 1,850,000 1,810,266 # Kaupthing Bank 144A 7.125% 5/19/16 4,075,000 4,126,189 MBNA 5.00% 6/15/15 700,000 664,113 Popular North America 4.25% 4/1/08 1,235,000 1,206,205 ~ 5.886% 4/6/09 2,220,000 2,226,229 Popular North America Capital Trust I 6.564% 9/15/34 1,730,000 1,602,798 ~# Rabobank Capital Funding II 144A 5.26% 12/29/49 1,870,000 1,786,768 ~ RBS Capital Trust I 4.709% 12/29/49 895,000 821,142 ~# Resona Preferred Global Securities Cayman 144A 7.191% 12/29/49 8,030,000 8,194,551 Russian Agriculture Bank 6.875% 11/29/10 1,760,000 1,772,723 # 144A 7.175% 5/16/13 980,000 995,680 ~# Shinsei Finance Cayman 144A 6.418% 1/29/49 1,760,000 1,707,886 ~# Skandinaviska Enskilda Banken 144A 8.125% 9/29/49 835,000 836,986 # Sovereign Bancorp 144A 4.80% 9/1/10 2,435,000 2,353,401 Sovereign Capital Trust VI 7.908% 6/13/36 2,755,000 2,920,402 ~# Sumitomo Mitsui Banking 144A 5.625% 7/29/49 2,030,000 1,929,430 ~# United Overseas Bank 144A 5.375% 9/3/19 1,315,000 1,259,725 ~ Wachovia Capital Trust III 5.80% 8/29/49 6,315,000 6,218,886 __________ 51,142,237 __________ Basic Industry - 5.66% Abitibi-Consolidated 7.875% 8/1/09 1,100,000 1,067,000 Alcan 5.75% 6/1/35 800,000 727,506 Barrick Gold 5.80% 11/15/34 1,550,000 1,396,438 Bowater 9.00% 8/1/09 1,490,000 1,530,975 Donohue Forest Products 7.625% 5/15/07 795,000 800,963 Georgia-Pacific 8.875% 5/15/31 2,749,000 2,752,436 9.50% 12/1/11 675,000 712,125 Grupo Minero Mexico 8.25% 4/1/08 2,105,000 2,178,675 Huntsman International 10.125% 7/1/09 1,295,000 1,320,900 IMC Global 7.375% 8/1/18 300,000 275,250 (continues) 11 <page> Statements of net assets Delaware Corporate Bond Fund Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Basic Industry (continued) Ispat Inland 9.75% 4/1/14 USD 1,755,000 $ 1,950,721 Lubrizol 4.625% 10/1/09 2,890,000 2,801,719 Newmont Gold 8.91% 1/5/09 264,253 275,409 Newmont Mining 5.875% 4/1/35 2,125,000 1,911,359 Norske Skog 8.625% 6/15/11 1,713,000 1,678,740 # Norske Skogindustrier 144A 7.125% 10/15/33 2,200,000 1,942,541 Placer Dome 6.45% 10/15/35 1,760,000 1,726,901 Sherwin-Williams 6.85% 2/1/07 681,000 684,416 # Southern Copper 144A 7.50% 7/27/35 1,200,000 1,193,387 Southern Peru Copper 7.50% 7/27/35 3,495,000 3,475,740 Vale Overseas 6.25% 1/11/16 690,000 683,790 Witco 6.875% 2/1/26 1,265,000 1,144,825 _________ 32,231,816 __________ Brokerage - 4.35% ~ Ameriprise Financial 7.518% 6/1/66 4,785,000 4,929,544 Amvescap 4.50% 12/15/09 2,870,000 2,767,131 E Trade Financial 8.00% 6/15/11 1,795,000 1,853,338 Goldman Sachs 5.25% 10/15/13 1,855,000 1,796,004 6.125% 2/15/33 745,000 715,275 6.345% 2/15/34 3,465,000 3,323,589 LaBranche & Company 9.50% 5/15/09 1,980,000 2,049,300 Lehman Brothers Holdings 4.50% 7/26/10 390,000 376,070 ~ Lehman Brothers Holdings E-Capital Trust I 5.954% 8/19/65 400,000 400,634 Merrill Lynch 6.05% 5/16/16 2,870,000 2,881,681 Morgan Stanley ~ 5.358% 11/24/06 350,000 350,194 5.375% 10/15/15 1,410,000 1,352,705 Nuveen Investments 5.00% 9/15/10 1,995,000 1,935,302 _________ 24,730,767 __________ Capital Goods - 0.36% Allied Waste North America 9.25% 9/1/12 1,114,000 1,189,195 # Sealed Air 144A 5.375% 4/15/08 830,000 825,911 __________ 2,015,106 __________ Communications - 11.26% AT&T 7.30% 11/15/11 3,495,000 3,744,631 AT&T Wireless Services 7.875% 3/1/11 525,000 570,143 8.75% 3/1/31 3,660,000 4,544,868 BellSouth 4.20% 9/15/09 3,050,000 2,929,095 6.00% 11/15/34 1,480,000 1,339,668 ` British Telecommunications 8.875% 12/15/30 2,200,000 2,781,101 Comcast 6.50% 11/15/35 2,400,000 2,304,336 Comcast Cable Communications 6.75% 1/30/11 2,205,000 2,291,892 Cox Communications 4.625% 1/15/10 2,580,000 2,480,827 CSC Holdings 8.125% 7/15/09 120,000 123,450 8.125% 8/15/09 950,000 977,313 GTE Hawaiian Telephone 7.375% 9/1/06 380,000 380,950 # Hanarotelecom 144A 7.00% 2/1/12 1,250,000 1,195,346 Insight Midwest 10.50% 11/1/10 1,325,000 1,384,625 Intelsat Bermuda 8.625% 1/15/15 520,000 517,400 Liberty Media 8.50% 7/15/29 795,000 794,944 News America 6.20% 12/15/34 2,575,000 2,365,058 Nextel Communications 6.875% 10/31/13 1,280,000 1,295,546 Sprint Capital 8.75% 3/15/32 2,670,000 3,261,448 Telecom Italia Capital 4.00% 1/15/10 415,000 390,920 ~ 6.108% 7/18/11 1,620,000 1,622,864 7.20% 7/18/36 3,315,000 3,391,185 Telefonica Emisones ~ 5.714% 6/19/09 2,410,000 2,413,789 5.984% 6/20/11 1,450,000 1,457,911 6.421% 6/20/16 795,000 806,359 7.045% 6/20/36 2,290,000 2,359,584 Telefonos de Mexico 4.50% 11/19/08 1,825,000 1,781,906 Time Warner Entertainment 8.375% 3/15/23 1,409,000 1,569,961 Triton Communications 8.50% 6/1/13 2,005,000 1,879,688 US Unwired 10.00% 6/15/12 580,000 640,900 # Viacom 144A ~ 5.691% 6/16/09 2,735,000 2,736,947 5.75% 4/30/11 905,000 889,043 6.875% 4/30/36 1,700,000 1,635,381 # Vimpelcom 144A 8.25% 5/23/16 530,000 528,675 Vodafone Group 5.375% 1/30/15 1,795,000 1,702,437 # Windstream 144A 8.125% 8/1/13 960,000 1,003,200 8.625% 8/1/16 1,925,000 2,011,625 __________ 64,105,016 __________ Consumer Cyclical - 9.93% Centex 6.50% 5/1/16 3,165,000 3,118,734 Corrections Corporation of America 7.50% 5/1/11 885,000 898,275 ~ DaimlerChrysler Holdings 5.74% 3/13/09 4,960,000 4,968,744 Disney (Walt) 7.55% 7/15/93 1,565,000 1,732,356 Ford Motor 7.45% 7/16/31 3,895,000 2,882,300 Ford Motor Credit 5.70% 1/15/10 2,255,000 2,021,953 Fortune Brands 5.125% 1/15/11 100,000 96,945 5.875% 1/15/36 1,090,000 976,926 # Galaxy Entertainment Finance 144A 9.875% 12/15/12 1,435,000 1,506,750 General Motors 8.375% 7/15/33 4,915,000 4,054,875 General Motors Acceptance Corporation 6.875% 9/15/11 4,670,000 4,526,710 8.00% 11/1/31 8,785,000 8,638,467 # Johnson (SC) & Son 144A 5.75% 2/15/33 515,000 477,761 Kohl's 7.25% 6/1/29 425,000 451,822 Lodgenet Entertainment 9.50% 6/15/13 335,000 358,450 12 <page> Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Consumer Cyclical (continued) May Department Stores 3.95% 7/15/07 USD 1,875,000 $ 1,843,251 6.65% 7/15/24 860,000 858,619 Neiman Marcus 10.375% 10/15/15 1,435,000 1,530,069 # Nissan Motor Acceptance 144A 5.625% 3/14/11 700,000 695,020 Office Depot 6.25% 8/15/13 1,395,000 1,410,122 Penney (J.C.) 7.625% 3/1/97 275,000 277,519 7.65% 8/15/16 3,000,000 3,298,908 Royal Caribbean Cruises 7.25% 6/15/16 620,000 617,057 Target 5.875% 7/15/16 1,175,000 1,189,069 Time Warner 8.18% 8/15/07 3,155,000 3,236,096 Visteon 7.00% 3/10/14 1,200,000 984,000 8.25% 8/1/10 4,205,000 3,889,625 __________ 56,540,423 __________ Consumer Non-Cyclical - 6.46% Altria Group 7.65% 7/1/08 1,585,000 1,644,363 7.75% 1/15/27 1,040,000 1,211,428 AmerisourceBergen 5.625% 9/15/12 1,785,000 1,714,851 5.875% 9/15/15 125,000 118,752 Anheuser Busch 5.75% 4/1/36 1,615,000 1,549,457 Biovail 7.875% 4/1/10 2,105,000 2,147,100 Boston Scientific 7.00% 11/15/35 1,410,000 1,358,113 Constellation Brands 8.125% 1/15/12 632,000 654,120 Genentech 4.75% 7/15/15 645,000 598,850 # HealthSouth 144A 10.75% 6/15/16 1,745,000 1,675,200 Kraft Foods 4.125% 11/12/09 1,825,000 1,749,356 5.25% 6/1/07 1,050,000 1,045,515 Kroger 5.50% 2/1/13 3,510,000 3,404,796 Marsh Supermarket 8.875% 8/1/07 570,000 568,575 Medco Health Solutions 7.25% 8/15/13 3,530,000 3,778,407 Merck 4.75% 3/1/15 265,000 245,644 5.95% 12/1/28 1,585,000 1,523,380 # Miller Brewing 144A 4.25% 8/15/08 860,000 837,748 Pilgrim's Pride 9.625% 9/15/11 1,055,000 1,110,388 # Reynolds American 144A 7.875% 5/15/09 1,115,000 1,162,480 Schering-Plough 5.55% 12/1/13 695,000 682,088 6.75% 12/1/33 565,000 595,213 US Oncology 9.00% 8/15/12 1,275,000 1,332,375 UST 6.625% 7/15/12 920,000 955,571 Wyeth 5.50% 2/1/14 5,195,000 5,098,088 __________ 36,761,858 __________ Electric - 6.32% Alabama Power 5.875% 12/1/22 1,520,000 1,499,469 Avista 7.75% 1/1/07 1,380,000 1,390,629 9.75% 6/1/08 100,000 106,443 BVPS II Funding 8.33% 12/1/07 451,000 451,532 CenterPoint Energy Houston Electric 5.60% 7/1/23 2,080,000 1,959,599 Cleveland Electric Illuminating 7.88% 11/1/17 200,000 227,865 Detroit Edison 4.80% 2/15/15 1,450,000 1,334,713 Dominion Resources 6.30% 3/15/33 2,095,000 2,015,224 Duke Capital 4.331% 11/16/06 845,000 841,349 5.668% 8/15/14 2,390,000 2,310,862 Entergy Gulf States 5.12% 8/1/10 1,575,000 1,524,513 6.00% 12/1/12 1,855,000 1,837,663 # MidAmerican Energy Holdings 144A 6.125% 4/1/36 1,770,000 1,708,910 Monongahela Power 5.00% 10/1/06 685,000 684,138 NRG Energy 7.375% 2/1/16 1,795,000 1,759,100 Pacific Gas & Electric 6.05% 3/1/34 2,720,000 2,633,132 PacifiCorp 7.00% 7/15/09 500,000 519,473 Peco Energy 5.95% 11/1/11 2,150,000 2,180,455 # Power Contract Financing 144A 6.256% 2/1/10 2,209,000 2,218,737 # Power Receivables Finance 144A 6.29% 1/1/12 183,772 184,183 ~ Progress Energy 5.957% 1/15/10 1,305,000 1,310,575 PSEG Funding Trust I 5.381% 11/16/07 1,680,000 1,673,453 PSEG Power 5.50% 12/1/15 2,640,000 2,516,792 # Tenaska Alabama Partners 144A 7.00% 6/30/21 908,829 899,170 TXU Energy 6.125% 3/15/08 935,000 939,953 Westar Energy 6.00% 7/1/14 1,250,000 1,252,725 __________ 35,980,657 __________ Energy - 4.21% Amerada Hess 7.125% 3/15/33 2,235,000 2,379,520 # Canadian Oil Sands 144A 4.80% 8/10/09 489,000 475,639 ConocoPhillips 5.90% 10/15/32 1,250,000 1,232,650 EnCana 6.50% 8/15/34 2,340,000 2,362,600 Nexen 5.875% 3/10/35 1,270,000 1,151,416 # Ras Laffan Liquefied Natural Gas II 144A 5.298% 9/30/20 1,000,000 946,348 # Ras Laffan Liquefied Natural Gas III 144A 5.838% 9/30/27 1,775,000 1,682,343 SEACOR Holdings 7.20% 9/15/09 2,115,000 2,164,447 ~ Secunda International 13.507% 9/1/12 1,275,000 1,340,344 Siberian Oil 10.75% 1/15/09 1,210,000 1,333,178 Smith International 7.00% 9/15/07 2,360,000 2,390,885 Talisman Energy 5.85% 2/1/37 1,645,000 1,492,819 # TNK-BP Finance 144A 7.50% 7/18/16 2,800,000 2,836,240 Tyumen Oil 11.00% 11/6/07 1,340,000 1,417,854 USX 9.125% 1/15/13 600,000 706,880 Weatherford International 4.95% 10/15/13 50,000 47,383 __________ 23,960,546 __________ (continues) 13 <page> Statements of net assets Delaware Corporate Bond Fund Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Financials - 5.65% American General Finance 4.875% 7/15/12 USD 2,185,000 $ 2,092,432 Capital One Bank 5.75% 9/15/10 1,250,000 1,255,633 HSBC Finance 4.625% 9/15/10 1,250,000 1,207,829 5.00% 6/30/15 750,000 704,717 ~ HSBC Finance Capital Trust IX 5.911% 11/30/35 2,600,000 2,537,434 # Mantis Reef 144A 4.799% 11/3/09 2,140,000 2,070,313 ~ MUFG Capital Finance 1 6.346% 7/29/49 1,775,000 1,739,305 Residential Capital 5.125% 5/17/12 790,000 1,010,565 6.125% 11/21/08 2,875,000 2,857,847 6.375% 6/30/10 815,000 812,948 ~ 6.489% 11/21/08 1,920,000 1,937,739 6.50% 4/17/13 1,430,000 1,424,515 6.875% 6/30/15 10,750,000 10,920,548 ~# 144A 7.337% 4/17/09 1,610,000 1,609,383 __________ 32,181,208 __________ Insurance - 8.43% # Farmers Exchange Capital 144A 7.05% 7/15/28 2,262,000 2,199,200 # Farmers Insurance Exchange 144A 6.00% 8/1/14 885,000 861,217 8.625% 5/1/24 4,105,000 4,616,269 Humana 6.45% 6/1/16 1,115,000 1,122,528 # Liberty Mutual 144A 5.75% 3/15/14 1,450,000 1,378,801 7.00% 3/15/34 805,000 771,341 # Liberty Mutual Insurance 144A 7.697% 10/15/97 2,745,000 2,655,551 Marsh & McLennan 5.15% 9/15/10 895,000 874,385 5.375% 3/15/07 2,145,000 2,141,650 ~ 5.64% 7/13/07 1,745,000 1,744,756 Montpelier Re Holdings 6.125% 8/15/13 2,645,000 2,487,522 # Nationwide Mutual Insurance 144A 7.875% 4/1/33 1,465,000 1,652,514 # Nippon Life Insurance 144A 4.875% 8/9/10 2,880,000 2,792,523 ~/# North Front Pass-Through Trust 144A 5.81% 12/15/24 4,850,000 4,662,154 Phoenix 6.675% 2/16/08 1,405,000 1,412,237 Safeco Capital Trust I 8.072% 7/15/37 1,055,000 1,110,634 St. Paul Travelers 5.01% 8/16/07 2,605,000 2,578,510 ~/# Twin Reefs Pass-Through Trust 144A 6.345% 12/31/49 2,000,000 2,000,120 UnitedHealth Group 5.80% 3/15/36 2,365,000 2,202,491 WellPoint 4.25% 12/15/09 1,505,000 1,445,909 5.85% 1/15/36 1,930,000 1,791,204 Willis Group 5.125% 7/15/10 2,080,000 2,023,570 5.625% 7/15/15 2,170,000 2,033,494 ~# ZFS Finance USA Trust I 144A 6.45% 12/15/65 1,510,000 1,421,278 __________ 47,979,858 __________ Natural Gas - 3.40% Atmos Energy 4.00% 10/15/09 1,020,000 967,031 Energy Transfer 5.95% 2/1/15 2,475,000 2,424,233 Enterprise Products Operating 4.00% 10/15/07 590,000 577,646 4.625% 10/15/09 1,565,000 1,510,723 # GulfSouth Pipeline 144A 5.05% 2/1/15 1,825,000 1,714,963 Kaneb Pipe Line 5.875% 6/1/13 455,000 448,020 KeySpan Gas East 6.90% 1/15/08 725,000 737,736 Kinder Morgan 5.70% 1/5/16 1,075,000 941,624 Northern Border Pipeline 6.25% 5/1/07 700,000 702,211 ONEOK 5.51% 2/16/08 2,665,000 2,657,882 Sempra Energy 4.621% 5/17/07 230,000 228,373 4.75% 5/15/09 735,000 719,432 ~ 5.659% 5/21/08 245,000 245,338 Sunoco Logistics Partners 6.125% 5/15/16 2,740,000 2,739,633 Texas East Transmission 5.25% 7/15/07 615,000 611,198 Valero Logistics Operations 6.05% 3/15/13 2,155,000 2,151,640 __________ 19,377,683 __________ Real Estate - 1.23% Brandywine Operating Partnership 5.625% 12/15/10 1,455,000 1,438,302 ~ 5.958% 4/1/09 1,560,000 1,562,220 Developers Diversified Realty 4.625% 8/1/10 2,765,000 2,652,005 5.375% 10/15/12 530,000 515,828 HRPT Properties Trust 5.75% 2/15/14 845,000 825,495 __________ 6,993,850 __________ Technology - 0.26% Sungard Data Systems 10.25% 8/15/15 1,452,000 1,479,225 __________ 1,479,225 __________ Transportation - 1.90% American Airlines 6.817% 5/23/11 2,070,000 2,028,600 6.977% 5/23/21 121,993 117,414 Continental Airlines 6.503% 6/15/11 2,080,000 2,092,056 6.703% 6/15/21 371,953 373,582 ~ CSX 5.43% 8/3/06 294,000 294,000 # Erac USA Finance 144A 5.30% 11/15/08 2,555,000 2,533,821 7.35% 6/15/08 1,320,000 1,359,513 14 <page> Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Transportation (continued) # Hertz 144A 10.50% 1/1/16 USD 1,735,000 $ 1,895,488 ++ United Air Lines 8.70% 10/7/08 494,749 141,004 ___________ 10,835,478 ___________ Total Corporate Bonds (cost $454,794,982) 446,315,728 ___________ ________________________________________________________________________________ Foreign Agencies - 1.09% ________________________________________________________________________________ Pemex Project Funding Master Trust 6.125% 8/15/08 2,095,000 2,104,428 6.625% 6/15/35 810,000 781,354 Series A 6.625% 6/15/35 3,475,000 3,339,071 ___________ Total Foreign Agencies (cost $6,103,054) 6,224,853 ___________ ________________________________________________________________________________ Municipal Bonds - 1.54% ________________________________________________________________________________ American Eagle Northwest Series A 4.97% 12/15/18 585,000 554,381 California State 5.00% 2/1/33 890,000 904,979 California State University Systemwide Revenue 5.00% 11/1/30 (AMBAC) 1,460,000 1,509,552 Illinois State Taxable Pension 5.10% 6/1/33 2,140,000 1,952,130 New York State Urban Development Series A-1 5.25% 3/15/34 (FGIC) 1,430,000 1,504,317 Oregon State Taxable Pension 5.892% 6/1/27 1,600,000 1,612,496 West Virginia Economic Development Authority 5.37% 7/1/20 (MBIA) 290,000 281,689 Wisconsin State General Taxable Revenue Series A 5.70% 5/1/26 (FSA) 475,000 471,670 ___________ Total Municipal Bonds (cost $8,946,522) 8,791,214 ___________ ________________________________________________________________________________ Non-Agency Asset-Backed Securities - 0.74% ________________________________________________________________________________ Citibank Credit Card Issuance Trust Series 2003-A7 A7 4.15% 7/7/17 285,000 259,086 # GSAA Trust Series 2004-4N Note 144A 6.25% 5/25/34 18,099 18,065 Mid-State Trust Series 11 A1 4.864% 7/15/38 232,217 218,450 Series 2004-1 A 6.005% 8/15/37 290,253 291,207 Series 2005-1 A 5.745% 1/15/40 348,078 338,832 Renaissance Home Equity Loan Trust Series 2005-2 AF2 4.361% 8/25/35 1,570,000 1,548,694 ~ Residential Asset Mortgage Products Series 2004-RZ2 AI3 4.30% 1/25/31 734,040 725,147 # Sharp Net Interest Margin Trust Series 2004-2N Note 144A 7.00% 1/25/34 77,107 77,107 # Sierra Receivables Funding Company Series 2003-1A A 144A 3.09% 1/15/14 88,759 87,002 Structured Asset Securities Series 2001-SB1 A2 3.375% 8/25/31 708,361 636,435 ___________ Total Non-Agency Asset-Backed Securities (cost $4,277,336) 4,200,025 ___________ ________________________________________________________________________________ Non-Agency Collateralized Mortgage Obligations - 2.22% ________________________________________________________________________________ ~ Bear Stearns Adjustable Rate Mortgage Trust Series 2005-7 1A2 4.75% 8/25/35 489,425 476,020 ~ Bear Stearns Alternative A Trust Series 2006-3 34A1 6.219% 5/25/36 1,712,016 1,727,369 Countrywide Alternative Loan Trust Series 2006-2CB A3 5.50% 3/25/36 1,239,479 1,238,094 ~ GMAC Mortgage Loan Trust Series 2005-AR2 4A 5.187% 5/25/35 1,548,409 1,496,723 ~ Indymac Index Mortgage Loan Trust Series 2006-AR7 5A1 6.164% 5/25/36 1,423,124 1,428,867 Series 2006-AR7 5A2 6.164% 5/25/36 2,105,058 2,107,114 Lehman Mortgage Trust Series 2005-2 2A3 5.50% 12/25/35 1,555,163 1,545,636 ~ MASTR Adjustable Rate Mortgage Trust Series 2004-10 2A2 4.947% 10/25/34 594,206 600,720 `# MASTR Specialized Loan Trust Series 2005-2 A2 144A 5.006% 7/25/35 805,751 784,963 ~ Nomura Asset Acceptance Series 2006-AF1 1A2 6.159% 5/25/36 1,200,000 1,203,894 __________ Total Non-Agency Collateralized Mortgage Obligations (cost $12,664,231) 12,609,400 __________ ________________________________________________________________________________ Regional Agency - 0.47% ________________________________________________________________________________ Queensland Treasury 6.00% 10/14/15 AUD 3,512,000 2,691,760 __________ Total Regional Agency (cost $2,668,195) 2,691,760 __________ ________________________________________________________________________________ Regional Authority - 0.47% ________________________________________________________________________________ Ontario Province 4.50% 3/8/15 CAD 1,098,000 963,880 Quebec Province 5.00% 12/1/15 CAD 1,884,000 1,698,455 __________ Total Regional Authority (cost $2,607,793) 2,662,335 __________ ________________________________________________________________________________ << Senior Secured Loans - 4.27% ________________________________________________________________________________ Alltel/Windstream Term Loan B 7.196% 7/17/13 USD 3,225,000 3,233,063 AWAS Capital 7.25% 3/21/13 2,450,134 2,450,134 Georgia Pacific Term Loan Tranche B 7.35% 12/20/12 3,084,500 3,084,500 Tranche C 8.30% 12/23/13 2,200,000 2,224,750 HealthSouth 8.52% 3/10/13 5,100,000 5,093,625 @ Neiman Marcus Term Bank Loan 7.77% 4/6/13 2,408,228 2,432,310 NRG Energy Bank 7.499% 2/1/13 1,000,000 1,003,750 (continues) 15 <page> Statements of net assets Delaware Corporate Bond Fund Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ << Senior Secured Loans (continued) ________________________________________________________________________________ @ Qwest Communications Bank Loan Tranch A 11.00% 6/30/07 USD 1,000,000 $ 1,018,750 Tranch B 6.95% 6/30/10 1,250,000 1,246,094 United Airlines Bank Loan Tranche B 8.625% 2/1/12 1,437,500 1,453,672 9.125% 2/1/12 162,500 164,328 Visteon 8.61% 6/13/13 900,000 900,000 __________ Total Senior Secured Loans (cost $24,270,684) 24,304,976 __________ ________________________________________________________________________________ Sovereign Debt - 3.21% ________________________________________________________________________________ Brazil - 0.70% Republic of Brazil # 144A 6.00% 8/15/10 BRL 6,188,405 2,580,177 12.50% 1/5/16 BRL 3,082,000 1,424,424 __________ 4,004,601 __________ Colombia - 0.37% Republic of Colombia 7.375% 1/27/17 USD 885,000 904,913 12.00% 10/22/15 COP 2,445,000,000 1,181,934 __________ 2,086,847 __________ Germany - 0.19% Deutschland Republic 5.00% 7/4/11 EUR 813,000 1,098,028 __________ 1,098,028 __________ Mexico - 0.25% Mexican Bonos 10.00% 12/5/24 MXN 14,025,000 1,421,789 __________ 1,421,789 __________ Netherlands - 0.14% Netherlands Government 5.75% 2/15/07 EUR 617,000 798,072 __________ 798,072 __________ Poland - 0.09% Poland Government 6.25% 10/24/15 PLN 1,529,000 518,811 __________ 518,811 __________ Russia - 0.18% ~/@ Russian Paris Club Participation Note 2.654% 8/20/20 JPY 118,501,334 1,033,637 __________ 1,033,637 __________ Sweden - 0.57% Swedish Government 4.00% 12/1/09 SEK 12,995,000 1,831,080 4.50% 8/12/15 SEK 5,805,000 847,754 5.00% 12/1/20 SEK 3,535,000 550,319 __________ 3,229,153 __________ United Kingdom - 0.51% U.K. Treasury 8.00% 9/27/13 GBP 1,296,000 2,908,570 __________ 2,908,570 __________ Venezuela - 0.21% Venezuela Government 6.00% 12/9/20 USD 1,315,000 $ 1,188,760 __________ 1,188,760 __________ Total Sovereign Debt (cost $17,692,909) 18,288,268 __________ ________________________________________________________________________________ Supranational Banks - 0.14% ________________________________________________________________________________ Inter-American Development Bank 1.90% 7/8/09 JPY 4,000,000 35,757 ^ International Bank for Reconstruction & Development 6.861% 8/20/07 NZD 1,269,000 728,813 __________ Total Supranational Banks (cost $802,905) 764,570 __________ ________________________________________________________________________________ U.S. Treasury Obligations - 2.60% ________________________________________________________________________________ U.S. Treasury Bonds 5.375% 2/15/31 USD 4,360,000 4,509,535 U.S. Treasury Inflation Index Notes oo 1.875% 7/15/15 348,705 333,926 3.875% 1/15/09 475,306 492,164 U.S. Treasury Notes 4.875% 5/15/09 780,000 779,208 oo 4.875% 5/31/11 4,840,000 4,832,062 5.125% 6/30/11 1,295,000 1,307,040 5.125% 5/15/16 2,505,000 2,531,814 __________ Total U.S. Treasury Obligations (cost $14,714,379) 14,785,749 __________ Number of Shares ________________________________________________________________________________ Common Stock - 0.01% ________________________________________________________________________________ Masco 281 7,511 + UAL 2,320 60,649 __________ Total Common Stock (cost $77,459) 68,160 __________ ________________________________________________________________________________ Preferred Stock - 0.14% ________________________________________________________________________________ Nexen 7.35% 32,495 815,949 __________ Total Preferred Stock (cost $846,759) 815,949 __________ ________________________________________________________________________________ Warrant - 0.00% ________________________________________________________________________________ +# Solutia144A, exercise price $7.59, expiration date 7/15/09 1,590 0 __________ Total Warrant (cost $135,295) 0 __________ 16 <page> Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Repurchase Agreements - 1.11% ________________________________________________________________________________ With BNP Paribas 5.22% 8/1/06 (dated 7/31/06, to be repurchased at $3,348,485, collateralized by $2,038,000 U.S. Treasury Bills due 1/25/07, market value $1,987,757, $1,012,000 U.S. Treasury Notes 3.375% due 9/15/09, market value $979,828 and $424,000 U.S. Treasury Notes 6.00% due 8/15/09, market value $ 448,443) USD 3,348,000 $ 3,348,000 With Cantor Fitzgerald 5.22% 8/1/06 (dated 7/31/06, to be repurchased at $1,698,246, collateralized by $255,000 U.S. Treasury Notes 3.00% due 2/15/09, market value $246,478, $192,000 U.S. Treasury Notes 3.625% due 7/15/09, market value $185,620, $424,000 U.S. Treasury Notes 3.875% due 5/15/09, market value $416,037, $424,000 U.S. Treasury Notes 5.50% due 5/15/09, market value $435,738 and $424,000 U.S. Treasury Notes 6.00% due 8/15/09, market value $ 448,443) 1,698,000 1,698,000 With UBS Warburg 5.20% 8/1/06 (dated 7/31/06, to be repurchased at $1,273,184, collateralized by $1,325,000 U.S. Treasury Notes 3.875% due 5/15/09, market value $1,299,265) 1,273,000 1,273,000 ____________ Total Repurchase Agreements (cost $6,319,000) 6,319,000 ____________ Total Market Value of Securities - 100.14% (cost $578,310,151) 570,110,879 Liabilities Net of Receivables and Other Assets - (0.14%) (788,473) ____________ Net Assets Applicable to 103,819,335 Shares Outstanding - 100.00% $569,322,406 ____________ Net Asset Value - Delaware Corporate Bond Fund Class A ($256,775,958 / 46,811,897 Shares) $5.49 _____ Net Asset Value - Delaware Corporate Bond Fund Class B ($23,791,828 / 4,339,888 Shares) $5.48 _____ Net Asset Value - Delaware Corporate Bond Fund Class C ($48,424,952 / 8,827,561 Shares) $5.49 _____ Net Asset Value - Delaware Corporate Bond Fund Class R ($6,048,691 / 1,102,495 Shares) $5.49 _____ Net Asset Value - Delaware Corporate Bond Fund Institutional Class ($234,280,977 / 42,737,494) $5.48 _____ Components of Net Assets at July 31, 2006: Shares of beneficial interest (unlimited authorization - no par) $590,759,627 Distribution in excess of net investment income (753,270) Accumulated net realized loss on investments (12,729,670) Net unrealized depreciation of investments and foreign currencies (7,954,281) ____________ Total net assets $569,322,406 ____________ o Principal amount shown is stated in the currency in which each security is denominated. AUD - Australian Dollar BRL - Brazilian Real CAD - Canadian Dollar COP - Colombian Peso EUR - European Monetary Unit GBP - British Pound Sterling JPY - Japanese Yen MXN - Mexican Peso NZD - New Zealand Dollar PLN - Polish Zloty SEK - Swedish Krona USD - U.S. Dollar + Non-income producing security for the year ended July 31, 2006. ++ Non-income producing security. Security is currently in default. ^ Zero coupon security. The interest rate shown is the yield at the time of purchase. ~ Variable rate security. The interest rate shown is the rate as of July 31, 2006. ` Step coupon bond. Coupon increases periodically based on a predetermined schedule. Stated interest rate in effect at July 31, 2006. @ Illiquid security. At July 31, 2006, the aggregate amount of illiquid securities equals $6,769,296, which represented 1.19% of the Fund's net assets. See Note 10 in "Notes to Financial Statements." # Security exempt from registration under Rule 144A of the Securities Act of 1933, as amended. At July 31, 2006, the aggregate amount of Rule 144A securities equals $108,893,651, which represented 19.13% of the Fund's net assets. See Note 10 in "Notes to Financial Statements." << Senior Secured Loans in which the Fund invests generally pay interest at rates which are periodically redetermined by reference to a base lending rate plus a premium. These base lending rates are generally (i) the prime rate offered by one or more United States banks, (ii) the lending rate offered by one or more European banks such as the London Inter-Bank Offered Rate ('LIBOR') and (iii) the certificate of deposit rate. Senior Secured Loans may be subject to restrictions on resale. / Pass Through Agreement. Security represents the contractual right to receive a proportionate amount of underlying payments due to the counterparty pursuant to various agreements related to the rescheduling of obligations and the exchange of certain notes. oo Fully or partially pledged as collateral for financial futures contracts. = Security is being fair valued in accordance with the Fund's fair valuation policy. At July 31, 2006, the aggregate amount of fair valued securities equals $1,038,505, which represented 0.18% of the Fund's net assets. See Note 1 in "Notes to Financial Statements." (continues) 17 <page> Statements of net assets Delaware Corporate Bond Fund ________________________________________________________________________________ ________________________________________________________________________________ Summary of Abbreviations: AMBAC - Insured by the AMBAC Assurance Corporation CBO - Collateralized Bond Obligation CDO - Collateralized Debt Obligation FGIC - Insured by the Financial Guaranty Insurance Company FSA - Insured by Financial Security Assurance GNMA - Government National Mortgage Association MBIA - Insured by the Municipal Bond Insurance Association S.F. - Single Family TBA - To be announced yr - Year Net Asset Value and Offering Price Per Share - Delaware Corporate Bond Fund Net asset value Class A (A) $5.49 Sales charge (4.50% of offering price) (B) 0.26 _____ Offering price $5.75 _____ (A) Net asset value per share, as illustrated, is the amount which would be paid upon redemption or repurchase of shares. (B) See the current prospectus for purchases of $100,000 or more. The following foreign currency exchange contracts, forward foreign cross-currency exchange contracts and futures contracts were outstanding at July 31, 2006: Foreign Currency Exchange Contracts and Forward Foreign Cross-Currency Exchange Contracts (1) Contracts to Unrealized Receive Settlement Appreciation (Deliver) In Exchange For Date (Depreciation) _______________ _______________ __________ ______________ AUD (3,687,410) USD 2,807,225 8/4/06 $(17,769) CAD (2,403,800) USD 2,174,401 8/4/06 50,098 EUR 360,800 USD (461,312) 8/4/06 (353) GBP (1,610,000) USD 2,969,666 8/4/06 (37,888) JPY 97,728,500 EUR (682,600) 8/4/06 (19,357) JPY 211,847,000 USD(1,868,056) 8/4/06 (19,575) JPY 443,543,000 USD(3,916,702) 11/2/06 4,285 NZD (1,150,800) USD 734,636 8/4/06 24,110 PLN (2,069,310) USD 690,852 8/4/06 20,572 SEK (15,311,200) USD 2,137,958 11/2/06 (3,116) ________ $ 1,007 ________ Futures Contracts (2) Notional Unrealized Contracts Cost Notional Expiration Appreciation to Buy (Sell) (Proceeds) Value Date (Depreciation) ____________________ ___________ ___________ __________ ______________ 434 U.S. Treasury 5 year Notes $45,091,989 $45,230,938 9/30/06 $ 138,949 548 U.S. Treasury 10 year Notes 57,691,241 58,105,125 9/30/06 413,884 (168) U.S. Treasury long Bond (17,895,253) (18,191,250) 9/30/06 (295,997) _________ $ 256,836 _________ The use of futures contracts involves elements of market risk and risks in excess of the amount recognized in the financial statements. The notional amounts presented above represent the Fund's total exposure in such contracts, whereas only the net unrealized appreciation (depreciation) is reflected in the Fund's net assets. (1) See Note 8 in "Notes to Financial Statements." (2) See Note 9 in "Notes to Financial Statements." See accompanying notes 18 <page> Statements of net assets Delaware Extended Duration Bond Fund July 31, 2006 Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Agency Collateralized Mortgage Obligations - 0.25% ________________________________________________________________________________ oo Freddie Mac Series 2890 PC 5.00% 7/15/30 USD 300,000 $ 289,446 GNMA Series 2003-5 B 4.486% 10/16/25 160,000 154,849 ___________ Total Agency Collateralized Mortgage Obligations (cost $462,016) 444,295 ___________ ________________________________________________________________________________ Agency Mortgage-Backed Securities - 0.28% ________________________________________________________________________________ Fannie Mae S.F. 30 yr 5.00% 9/1/35 126,664 119,975 oo 5.50% 3/1/29 255,487 249,418 Fannie Mae S.F. 30 yr TBA 5.50% 8/1/36 130,000 126,263 ___________ Total Agency Mortgage-Backed Securities (cost $500,323) 495,656 ___________ ________________________________________________________________________________ @=# Collateralized Bond Obligations - 0.03% ________________________________________________________________________________ Juniper CBO Series 1999-1A A1 144A 6.83% 4/15/11 48,163 48,440 Putnam CBO II Limited 144A 6.875% 11/8/09 11,403 11,403 ___________ Total Collateralized Bond Obligations (cost $61,679) 59,843 ___________ ________________________________________________________________________________ Commercial Mortgage-Backed Securities - 1.90% ________________________________________________________________________________ ~ Bank of America Commercial Mortgage Series 2006-3 A4 5.889% 7/10/44 1,395,000 1,410,257 # Bear Stearns Commercial Mortgage Securities Series 2004-ESA E 144A 5.064% 5/14/16 260,000 257,910 # Credit Suisse First Boston Mortgage Securities Series 2001-SPGA A2 144A 6.515% 8/13/18 610,000 636,996 ~ JPMorgan Chase Commercial Mortgage Securities Series 2006-LDP7 AJ 6.066% 4/15/45 600,000 606,234 Merrill Lynch Mortgage Trust # Series 2002-MW1 J 144A 5.695% 7/12/34 110,000 104,334 Series 2005-CIP1 A2 4.96% 7/12/38 50,000 49,007 # Morgan Stanley Capital I Series 1999-FNV1 G 144A 6.12% 3/15/31 155,000 155,400 # Tower Series 2004-2A A 144A 4.232% 12/15/14 195,000 188,141 ___________ Total Commercial Mortgage-Backed Securities (cost $3,389,730) 3,408,279 ___________ ________________________________________________________________________________ Corporate Bonds - 84.05% ________________________________________________________________________________ Banking - 8.30% BAC Capital Trust XI 6.625% 5/23/36 655,000 669,572 ~ Barclays Bank 6.278% 12/29/49 1,035,000 935,317 BB&T Capital Trust I 5.85% 8/18/35 875,000 803,781 Citigroup 6.625% 6/15/32 100,000 105,900 6.875% 2/15/98 750,000 803,588 ~# HBOS 144A 5.92% 9/29/49 300,000 281,973 6.413% 9/29/49 1,000,000 924,478 HSBC 7.625% 5/17/32 500,000 580,795 # Kaupthing Bank 144A 7.125% 5/19/16 1,290,000 1,306,205 Popular North America Capital Trust I 6.564% 9/15/34 580,000 537,354 ~# Rabobank Capital Funding II 144A 5.26% 12/29/49 505,000 482,523 ~ RBS Capital Trust I 4.709% 12/29/49 285,000 261,481 ~# Resona Preferred Global Securities Cayman 144A 7.191% 12/29/49 2,270,000 2,316,517 # Russian Agriculture Bank 144A 7.175% 5/16/13 300,000 304,800 ~# Shinsei Finance Cayman 144A 6.418% 1/29/49 550,000 533,715 Sovereign Capital Trust VI 7.908% 6/13/36 900,000 954,033 ~# Sumitomo Mitsui Banking 144A 5.625% 7/29/49 540,000 513,247 Travelers Capital III 7.625% 12/1/36 581,000 659,817 ~# United Overseas Bank 144A 5.375% 9/3/19 305,000 292,180 ~ Wachovia Capital Trust III 5.80% 8/29/49 1,600,000 1,575,648 ___________ 14,842,924 ___________ Basic Industry - 6.00% Abitibi-Consolidated 7.875% 8/1/09 395,000 383,150 Alcan 5.75% 6/1/35 930,000 845,726 Barrick Gold 5.80% 11/15/34 500,000 450,464 Bowater 9.00% 8/1/09 320,000 328,800 Georgia-Pacific 8.875% 5/15/31 870,000 871,088 9.50% 12/1/11 250,000 263,750 Huntsman International 10.125% 7/1/09 495,000 504,900 IMC Global 7.375% 8/1/18 200,000 183,500 Ispat Inland 9.75% 4/1/14 380,000 422,378 Lubrizol 6.50% 10/1/34 835,000 818,532 Newmont Mining 5.875% 4/1/35 500,000 449,732 Norske Skog 8.625% 6/15/11 460,000 450,800 # Norske Skogindustrier 144A 7.125% 10/15/33 1,120,000 988,929 Phelps Dodge 9.50% 6/1/31 500,000 631,697 Placer Dome 6.45% 10/15/35 675,000 662,306 # Southern Copper 144A 7.50% 7/27/35 625,000 621,556 Southern Peru Copper 7.50% 7/27/35 940,000 934,820 Vale Overseas 6.25% 1/11/16 215,000 213,065 Weyerhaeuser 7.125% 7/15/23 340,000 338,900 Witco 6.875% 2/1/26 400,000 362,000 ___________ 10,726,093 ___________ Brokerage - 3.85% ~ Ameriprise Financial 7.518% 6/1/66 1,370,000 1,411,385 E Trade Financial 8.00% 6/15/11 495,000 511,088 # FMR 144A 7.57% 6/15/29 350,000 414,234 (continues) 19 <page> Statements of net assets Delaware Extended Duration Bond Fund Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Brokerage (continued) Goldman Sachs 6.125% 2/15/33 USD 555,000 $ 532,856 6.345% 2/15/34 2,370,000 2,273,277 LaBranche & Company 9.50% 5/15/09 595,000 615,825 Merrill Lynch 6.05% 5/16/16 725,000 727,951 Morgan Stanley 5.375% 10/15/15 420,000 402,933 ___________ 6,889,549 ___________ Capital Goods - 0.84% Allied Waste North America 9.25% 9/1/12 405,000 432,338 Honeywell International 5.70% 3/15/36 300,000 287,381 United Technologies 6.05% 6/1/36 785,000 789,961 ___________ 1,509,680 ___________ Communications - 14.75% America Movil 6.375% 3/1/35 600,000 556,884 AT&T 8.00% 11/15/31 1,100,000 1,287,217 AT&T Wireless Services 8.75% 3/1/31 1,720,000 2,135,839 BellSouth 6.00% 11/15/34 1,170,000 1,059,062 ` British Telecommunications 8.875% 12/15/30 985,000 1,245,175 Citizens Communications 9.00% 8/15/31 500,000 515,000 Comcast 6.50% 11/15/35 1,260,000 1,209,776 Cox Communications 6.80% 8/1/28 984,000 978,996 6.95% 1/15/28 645,000 643,185 CSC Holdings 8.125% 8/15/09 215,000 221,181 # Hanarotelecom 144A 7.00% 2/1/12 285,000 272,539 Insight Midwest 10.50% 11/1/10 260,000 271,700 Intelsat Bermuda 8.625% 1/15/15 165,000 164,175 Liberty Media 8.50% 7/15/29 530,000 529,962 News America 6.20% 12/15/34 755,000 693,444 7.30% 4/30/28 700,000 721,986 Nextel Communications 6.875% 10/31/13 310,000 313,765 Pacific Bell 7.125% 3/15/26 100,000 104,536 SBC Communications 5.10% 9/15/14 1,125,000 1,057,581 Sprint Capital 8.75% 3/15/32 2,255,000 2,754,518 Telecom Italia Capital 7.20% 7/18/36 2,075,000 2,122,688 Telefonica Emisones 6.421% 6/20/16 305,000 309,358 7.045% 6/20/36 1,455,000 1,499,212 Telefonos de Mexico 5.50% 1/27/15 600,000 574,201 Time Warner Entertainment 8.375% 3/15/23 1,670,000 1,860,777 Triton Communications 8.50% 6/1/13 630,000 590,625 US Unwired 10.00% 6/15/12 180,000 198,900 # Viacom 144A 6.875% 4/30/36 1,130,000 1,087,048 Vodafone Group 7.875% 2/15/30 400,000 448,331 # Windstream 144A 8.125% 8/1/13 305,000 318,725 8.625% 8/1/16 605,000 632,225 ___________ 26,378,611 ___________ Consumer Cyclical - 10.56% Centex 6.50% 5/1/16 1,225,000 1,207,093 Corrections Corporation of America 7.50% 5/1/11 280,000 284,200 DaimlerChrysler Holdings 8.50% 1/18/31 600,000 694,862 Disney (Walt) 7.55% 7/15/93 1,920,000 2,125,319 Ford Motor 7.45% 7/16/31 1,880,000 1,391,200 Fortune Brands 5.875% 1/15/36 680,000 609,458 # Galaxy Entertainment Finance 144A 9.875% 12/15/12 415,000 435,750 General Motors 8.375% 7/15/33 1,620,000 1,336,500 General Motors Acceptance Corporation 6.875% 9/15/11 1,120,000 1,085,635 8.00% 11/1/31 3,695,000 3,633,367 # Johnson (SC) & Son 144A 5.75% 2/15/33 225,000 208,730 Kohl's 7.25% 6/1/29 600,000 637,867 Lodgenet Entertainment 9.50% 6/15/13 195,000 208,650 May Department Stores 6.65% 7/15/24 500,000 499,197 6.70% 7/15/34 960,000 955,747 Neiman Marcus 10.375% 10/15/15 490,000 522,463 Office Depot 6.25% 8/15/13 300,000 303,252 Penney (J.C.) 7.625% 3/1/97 85,000 85,779 7.65% 8/15/16 550,000 604,800 Royal Caribbean Cruises 7.25% 6/15/16 235,000 233,885 Target 5.875% 7/15/16 375,000 379,490 Visteon 7.00% 3/10/14 385,000 315,700 8.25% 8/1/10 1,230,000 1,137,750 ___________ 18,896,694 ___________ Consumer Non-Cyclical - 7.88% Altria Group 7.75% 1/15/27 785,000 914,395 AmerisourceBergen 5.625% 9/15/12 525,000 504,368 5.875% 9/15/15 450,000 427,508 Biovail 7.875% 4/1/10 615,000 627,300 Boston Scientific 7.00% 11/15/35 1,640,000 1,579,650 # Cargill 144A 6.125% 4/19/34 1,000,000 986,760 Delhaize America 9.00% 4/15/31 455,000 512,804 Genentech 5.25% 7/15/35 800,000 706,595 # HealthSouth 144A 10.75% 6/15/16 550,000 528,000 Kraft Foods 6.50% 11/1/31 1,195,000 1,221,047 Marsh Supermarket 8.875% 8/1/07 180,000 179,550 Medco Health Solutions 7.25% 8/15/13 1,335,000 1,428,944 Merck 5.95% 12/1/28 655,000 629,536 Pilgrim's Pride 9.625% 9/15/11 285,000 299,963 # Reynolds American 144A 7.875% 5/15/09 355,000 370,117 Schering-Plough 6.75% 12/1/33 950,000 1,000,801 US Oncology 9.00% 8/15/12 400,000 418,000 UST 6.625% 7/15/12 255,000 264,859 Wyeth 6.00% 2/15/36 1,545,000 1,488,166 ___________ 14,088,363 ___________ Electric - 8.82% Alabama Power 5.875% 12/1/22 925,000 912,506 CalEnergy 8.48% 9/15/28 1,345,000 1,654,072 20 <page> Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Electric (continued) Carolina Power & Light 8.625% 9/15/21 USD 1,410,000 $ 1,744,743 CenterPoint Energy Houston Electric 5.60% 7/1/23 830,000 781,955 Cleveland Electric Illuminating 7.88% 11/1/17 530,000 603,841 Dominion Resources 5.95% 6/15/35 450,000 414,334 6.30% 3/15/33 800,000 769,537 Duke Capital 5.668% 8/15/14 780,000 754,173 # MidAmerican Energy Holdings 144A 6.125% 4/1/36 1,115,000 1,076,517 Northern States Power-Minnesota 5.25% 7/15/35 805,000 712,993 NRG Energy 7.375% 2/1/16 610,000 597,800 Ohio Edison 6.875% 7/15/36 1,120,000 1,169,724 Oncor Electric 7.25% 1/15/33 625,000 680,868 Otter Tail 6.80% 10/1/32 450,000 439,008 Pacific Gas & Electric 6.05% 3/1/34 1,295,000 1,253,642 PSEG Power 5.50% 12/1/15 860,000 819,864 Tampa Electric 6.55% 5/15/36 100,000 102,174 # Tenaska Alabama Partners 144A 7.00% 6/30/21 268,740 265,884 Xcel Energy 6.50% 7/1/36 1,025,000 1,029,644 ___________ 15,783,279 ___________ Energy - 5.70% Amerada Hess 7.125% 3/15/33 800,000 851,730 ConocoPhillips 5.90% 10/15/32 850,000 838,202 EnCana 6.50% 8/15/34 650,000 656,278 Global Marine 7.00% 6/1/28 525,000 561,388 Nexen 5.875% 3/10/35 1,050,000 951,958 Petro-Canada 5.95% 5/15/35 1,450,000 1,333,408 # Ras Laffan Liquefied Natural Gas II 144A 5.298% 9/30/20 500,000 473,174 # Ras Laffan Liquefied Natural Gas III 144A 5.838% 9/30/27 1,220,000 1,156,315 SEACOR Holdings 7.20% 9/15/09 240,000 245,611 ~ Secunda International 13.507% 9/1/12 225,000 236,531 Siberian Oil 10.75% 1/15/09 475,000 523,355 Talisman Energy 5.85% 2/1/37 990,000 898,414 # TNK-BP Finance 144A 7.50% 7/18/16 1,105,000 1,119,302 Tyumen Oil 11.00% 11/6/07 330,000 349,173 ___________ 10,194,839 ___________ Financials - 3.09% ~ HSBC Finance Capital Trust IX 5.911% 11/30/35 900,000 878,342 # Mantis Reef 144A 4.799% 11/3/09 340,000 328,928 ~ MUFG Capital Finance 1 6.346% 7/29/49 555,000 543,839 Residential Capital 5.125% 5/17/12 EUR 250,000 319,799 6.875% 6/30/15 USD 3,410,000 3,464,100 ___________ 5,535,008 ___________ Industrial - 0.17% President and Fellows of Harvard College 6.30% 10/1/37 305,000 307,602 ___________ 307,602 ___________ Insurance - 8.55% American RE 7.45% 12/15/26 155,000 167,708 # Farmers Exchange Capital 144A 7.05% 7/15/28 365,000 354,867 # Farmers Insurance Exchange 144A 6.00% 8/1/14 300,000 291,938 8.625% 5/1/24 1,680,000 1,889,241 Humana 6.45% 6/1/16 345,000 347,329 # Liberty Mutual 144A 7.00% 3/15/34 270,000 258,710 # Liberty Mutual Insurance 144A 7.697% 10/15/97 1,110,000 1,073,830 MetLife 5.70% 6/15/35 715,000 657,337 6.375% 6/15/34 500,000 500,845 Montpelier Re Holdings 6.125% 8/15/13 735,000 691,240 # Mutual of Omaha 144A 6.80% 6/15/36 900,000 893,643 # Nationwide Mutual Insurance 144A 7.875% 4/1/33 410,000 462,478 # New York Life Insurance 144A 5.875% 5/15/33 295,000 287,973 ~/# North Front Pass-Through Trust 144A 5.81% 12/15/24 1,660,000 1,595,707 UnitedHealth Group 5.80% 3/15/36 1,860,000 1,732,192 WellPoint 5.85% 1/15/36 2,195,000 2,037,146 Willis Group 5.625% 7/15/15 1,205,000 1,129,198 ~# ZFS Finance USA Trust I 144A 6.45% 12/15/65 990,000 931,832 ___________ 15,303,214 ___________ Natural Gas - 2.99% Energy Transfer 5.95% 2/1/15 490,000 479,949 Enterprise Products 5.75% 3/1/35 650,000 565,535 # GulfSouth Pipeline 144A 5.05% 2/1/15 175,000 164,449 Kaneb Pipe Line 5.875% 6/1/13 145,000 142,776 Kinder Morgan 6.40% 1/5/36 1,750,000 1,440,550 San Diego Gas & Electric 6.00% 6/1/26 1,020,000 1,019,312 Sunoco Logistics Partners 6.125% 5/15/16 845,000 844,887 Valero Logistics Operations 6.05% 3/15/13 685,000 683,932 ___________ 5,341,390 ___________ Real Estate - 0.14% HRPT Properties Trust 5.75% 2/15/14 265,000 258,883 ___________ 258,883 ___________ Technology - 1.45% Dell 7.10% 4/15/28 420,000 461,775 International Business Machines 7.125% 12/1/96 100,000 110,164 (continues) 21 <page> Statements of net assets Delaware Extended Duration Bond Fund Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Technology (continued) Motorola 6.50% 9/1/25 USD 415,000 $ 420,651 6.50% 11/15/28 1,050,000 1,065,371 Sungard Data Systems 10.25% 8/15/15 530,000 539,938 ___________ 2,597,899 ___________ Transportation - 0.96% American Airlines 6.817% 5/23/11 380,000 372,400 6.977% 5/23/21 72,537 69,814 Continental Airlines 6.503% 6/15/11 725,000 729,202 # Hertz 144A 10.50% 1/1/16 495,000 540,788 ___________ 1,712,204 ___________ Total Corporate Bonds (cost $154,523,411) 150,366,232 ___________ ________________________________________________________________________________ Foreign Agencies - 1.42% ________________________________________________________________________________ Pemex Project Funding Master Trust 6.625% 6/15/35 1,075,000 1,036,982 Series A 6.625% 6/15/35 1,560,000 1,498,979 ___________ Total Foreign Agencies (cost $2,357,840) 2,535,961 ___________ ________________________________________________________________________________ Municipal Bonds - 1.23% ________________________________________________________________________________ American Eagle Northwest Series A 4.97% 12/15/18 125,000 118,458 California State 5.00% 2/1/33 180,000 183,029 California State University Systemwide Revenue 5.00% 11/1/30 (AMBAC) 600,000 620,364 Illinois State Taxable Pension 5.10% 6/1/33 355,000 323,835 New York State Urban Development Series A-1 5.25% 3/15/34 (FGIC) 295,000 310,331 Oregon State Taxable Pension 5.892% 6/1/27 410,000 413,202 West Virginia Economic Development Authority 5.37% 7/1/20 (MBIA) 60,000 58,280 Wisconsin State General Taxable Revenue Series A 5.70% 5/1/26 (FSA) 170,000 168,808 ___________ Total Municipal Bonds (cost $2,228,167) 2,196,307 ___________ ________________________________________________________________________________ Non-Agency Asset-Backed Securities - 0.22% ________________________________________________________________________________ Citibank Credit Card Issuance Trust Series 2003-A7 A7 4.15% 7/7/17 150,000 136,361 # GSAA Trust Series 2004-4N Note 144A 6.25% 5/25/34 3,810 3,803 Mid-State Trust Series 11 A1 4.864% 7/15/38 63,030 59,294 Series 2005-1 A 5.745% 1/15/40 171,836 167,271 # Sharp Net Interest Margin Trust Series 2004-2N 144A 7.00% 1/25/34 23,366 23,366 ___________ Total Non-Agency Asset-Backed Securities (cost $394,138) 390,095 ___________ ________________________________________________________________________________ Non-Agency Collateralized Mortgage Obligations - 0.34% ________________________________________________________________________________ # GSMPS Mortgage Loan Trust 144A Series 2005-RP1 1A3 8.00% 1/25/35 156,943 164,478 ~ Indymac Index Mortgage Loan Trust Series 2006-AR7 5A1 6.164% 5/25/36 446,851 448,654 ___________ Total Non-Agency Collateralized Mortgage Obligations (cost $619,262) 613,132 ___________ ________________________________________________________________________________ Regional Agency - 0.47% ________________________________________________________________________________ Queensland Treasury 6.00% 10/14/15 AUD 1,105,000 846,923 ___________ Total Regional Agency (cost $845,088) 846,923 ___________ ________________________________________________________________________________ Regional Authority - 0.47% ________________________________________________________________________________ Ontario Province 4.50% 3/8/15 CAD 345,000 302,859 Quebec Province 5.00% 12/1/15 CAD 589,000 530,992 ___________ Total Regional Authority (cost $817,026) 833,851 ___________ ________________________________________________________________________________ <<Senior Secured Loans - 4.68% ________________________________________________________________________________ Alltel/Windstream Term Loan B 7.196% 7/17/13 USD 1,020,000 1,022,550 AWAS Capital 7.25% 3/21/13 833,046 833,046 Georgia Pacific Loan Tranche B 7.35% 12/20/12 995,000 995,000 Tranche C 8.30% 12/23/13 700,000 707,875 HealthSouth 8.52% 3/10/13 1,600,000 1,598,000 @ Neiman Marcus Term Bank Loan 7.77% 4/6/13 1,000,000 1,010,000 @ Qwest Communications Bank Loan Tranch B 6.95% 6/30/10 1,400,000 1,395,625 United Airlines Bank Loan Tranche B 8.625% 2/1/12 437,500 442,422 9.125% 2/1/12 62,500 63,203 Visteon 8.61% 6/13/13 300,000 300,000 ___________ Total Senior Secured Loans (cost $8,351,364) 8,367,721 ___________ ________________________________________________________________________________ Sovereign Debt - 3.70% ________________________________________________________________________________ Brazil - 0.72% Republic of Brazil # 144A 6.00% 8/15/10 BRL 2,715,046 1,132,004 12.50% 1/5/16 BRL 310,000 143,274 ___________ 1,275,278 ___________ Colombia - 0.35% Republic of Colombia 7.375% 1/27/17 USD 250,000 255,625 12.00% 10/22/15 COP 775,000,000 374,642 ___________ 630,267 ___________ Germany - 0.19% Deutschland Republic 5.00% 7/4/11 EUR 251,000 338,997 ___________ 338,997 ___________ Mexico - 0.97% Mexican Bonos 10.00% 12/5/24 MXN 4,425,000 448,586 Mexico Government 6.75% 9/27/34 USD 1,250,000 1,276,250 ___________ 1,724,836 ___________ 22 Principal Market Amount o Value (U.S. $) ________________________________________________________________________________ Sovereign Debt (continued) ________________________________________________________________________________ Netherlands - 0.14% Netherlands Government 5.75% 2/15/07 EUR 197,000 $ 254,814 _______________ 254,814 _______________ Poland - 0.08% Poland Government 6.25% 10/24/15 PLN 420,000 142,512 _______________ 142,512 _______________ Russia - 0.08% / ~ @ Russian Paris Club Participation Note 2.654% 8/20/20 JPY 16,595,898 144,759 _______________ 144,759 _______________ Sweden - 0.50% Swedish Government 4.00% 12/1/09 SEK 4,045,000 569,967 4.50% 8/12/15 SEK 1,355,000 197,882 5.00% 12/1/20 SEK 850,000 132,326 _______________ 900,175 _______________ United Kingdom - 0.51% U.K. Treasury 8.00% 9/27/13 GBP 405,000 908,928 _______________ 908,928 _______________ Venezuela - 0.16% Venezuela Government 6.00% 12/9/20 USD 325,000 293,800 _______________ 293,800 _______________ Total Sovereign Debt (cost $6,423,271) 6,614,366 _______________ ________________________________________________________________________________ Supranational Banks - 0.12% ________________________________________________________________________________ Inter-American Development Bank 1.90% 7/8/09 JPY 1,000,000 8,939 ^ International Bank for Reconstruction & Development 6.861% 8/20/07 NZD 357,000 205,033 _______________ Total Supranational Banks (cost $224,681) 213,972 _______________ ________________________________________________________________________________ U.S. Treasury Obligations - 1.41% ________________________________________________________________________________ U.S. Treasury Bonds 5.375% 2/15/31 USD 2,290,000 2,368,540 oo U.S. Treasury Notes 3.75% 3/31/07 75,000 74,335 5.125% 5/15/16 85,000 85,910 _______________ Total U.S. Treasury Obligations (cost $2,516,296) 2,528,785 _______________ Number of Shares ________________________________________________________________________________ Preferred Stock - 0.12% ________________________________________________________________________________ Nexen 7.35% 8,710 218,708 ______________ Total Preferred Stock (cost $217,750) 218,708 ______________ ________________________________________________________________________________ Warrant - 0.00% ________________________________________________________________________________ ~ # Solutia 144A, exercise price $7.59, expiration date 7/15/09 550 - ______________ Total Warrant (cost $46,787) - ______________ Total Market Value of Securities - 100.69% (cost $183,978,829) 180,134,126 Liabilities Net of Receivables and Other Assets - (0.69%) (1,230,081) ______________ Net Assets Applicable to 33,061,699 Shares Outstanding - 100.00% $178,904,045 ______________ Net Asset Value - Delaware Extended Duration Bond Fund Class A ($92,132,502 / 17,017,497 Shares) $5.41 _____ Net Asset Value - Delaware Extended Duration Bond Fund Class B ($6,370,523 / 1,177,958 Shares) $5.41 _____ Net Asset Value - Delaware Extended Duration Bond Fund Class C ($11,021,322 / 2,036,664 Shares) $5.41 _____ Net Asset Value - Delaware Extended Duration Bond Fund Class R ($22,690 / 4,190.35 Shares) $5.41 _____ Net Asset Value - Delaware Extended Duration Bond Fund Institutional Class ($69,357,008 / 12,825,390 Shares) $5.41 _____ Components of Net Assets at July 31, 2006: Shares of beneficial interest (unlimited authorization - no par) $189,140,010 Distributions in excess of net investment income (75,228) Accumulated net realized loss on investments (6,949,040) Net unrealized depreciation of investments and foreign currencies (3,211,697) ______________ Total net assets $178,904,045 ______________ o Principal amount shown is stated in the currency in which each security is denominated. AUD - Australian Dollar BRL - Brazilian Real CAD - Canadian Dollar COP - Colombian Peso EUR - European Monetary Unit GBP - British Pound Sterling JPY - Japanese Yen MXN - Mexican Peso NZD - New Zealand Dollar PLN - Polish Zloty SEK - Swedish Krona USD - U.S. Dollar ` Step coupon bond. Coupon increases periodically based on a predetermined schedule. Stated interest rate in effect at July 31, 2006. (continues) 23 <page> Statements of net assets Delaware Extended Duration Bond Fund ________________________________________________________________________________ ________________________________________________________________________________ / Pass Through Agreement. Security represents the contractual right to receive a proportionate amount of underlying payments due to the counterparty pursuant to various agreements related to the rescheduling of obligations and the exchange of certain notes. << Senior Secured Loans in which the Fund invests generally pay interest at rates which are periodically redetermined by reference to a base lending rate plus a premium. These base lending rates are generally (i) the prime rate offered by one or more United States banks, (ii) the lending rate offered by one or more European banks such as the London Inter-Bank Offered Rate ("LIBOR") and (iii) the certificate of deposit rate. Senior Secured Loans may be subject to restrictions on resale. ~ Variable rate security. The interest rate shown is the rate as of July 31, 2006. ^ Zero coupon security. The interest rate shown is the yield at the time of purchase. = Security is being fair valued in accordance with the Fund's fair valuation policy. At July 31, 2006, the aggregate amount of fair valued securities equaled $59,843, which represented 0.03% of the Fund's net assets. See Note 1 in "Notes to Financial Statements." + Non-income producing security for the year ended July 31, 2006. @ Illiquid security. At July 31, 2006, the aggregate amount of illiquid securities equaled $2,610,227, which represented 1.46% of the Fund's net assets. See Note 10 in "Notes to Financial Statements." # Security exempt from registration under Rule 144A of the Securities Act of 1933, as amended. At July 31, 2006, the aggregate amount of Rule 144A securities equaled $29,712,102, which represented 16.61% of the Fund's net assets. See Note 10 in "Notes to Financial Statements." oo Fully or partially pledged as collateral for financial futures contracts. Summary of Abbreviations: AMBAC - Insured by the AMBAC Assurance Corporation CBO - Collateralized Bond Obligation FGIC - Insured by the Financial Guaranty Insurance Company FSA - Insured by Financial Security Assurance GNMA - Government National Mortgage Association MBIA - Insured by the Municipal Bond Insurance Association S.F. - Single Family TBA - To be announced yr - Year Net Asset Value and Offering Price Per Share - Delaware Extended Duration Bond Fund Net asset value Class A (A) $ 5.41 Sales charge (4.50% of offering price) (B) 0.25 ______ Offering price $ 5.66 ______ (A) Net asset value per share, as illustrated, is the amount which would be paid upon redemption or repurchase of shares. (B) See the current prospectus for purchases of $100,000 or more. The following foreign currency exchange contracts, forward foreign cross-currency exchange contracts and futures contracts were outstanding at July 31, 2006: Foreign Currency Exchange Contracts(1) Unrealized Contracts In Exchange Settlement Appreciation Receive (Deliver) For Date (Depreciation) ________________ ___________ __________ ______________ AUD (1,144,990) USD 871,681 8/4/06 $(5,517) CAD (754,150) USD 682,180 8/4/06 15,717 EUR 125,100 USD (159,934) 8/4/06 (106) GBP (494,000) USD 912,212 8/4/06 (10,603) JPY135,687,000 USD(1,198,183) 11/2/06 1,311 JPY 95,194,000 USD (840,143) 8/4/06 (9,523) JPY 30,716,280 EUR (215,100) 8/4/06 (6,796) NZD (323,800) USD 206,704 8/4/06 6,784 PLN (568,970) USD 189,954 8/4/06 5,656 SEK (4,356,000) USD 608,244 11/2/06 (887) _________ $(3,964) _________ Futures Contracts(2) Notional Unrealized Contracts to Cost Notional Expiration Appreciation to Buy (Sell) (Proceeds) Value Date (Depreciation) _____________ __________ ________ __________ ______________ (65) U.S. Treasury 2 year Notes $(13,231,440) $(13,225,469) 9/30/06 $ 5,971 (132) U.S. Treasury 5 year Notes (13,709,883) (13,756,875) 9/30/06 (46,992) 4 U.S. Treasury 10 year Notes 416,260 424,125 9/30/06 7,865 480 U.S. Treasury long Bond 51,314,393 51,975,000 9/30/06 660,607 _________ $ 627,451 _________ The use of futures contracts involves elements of market risk and risks in excess of the amount recognized in the financial statements. The notional amounts presented above represent the Fund's total exposure in such contracts, whereas only the net unrealized appreciation (depreciation) is reflected in the Fund's net assets. (1) See Note 8 in "Notes to Financial Statements." (2) See Note 9 in "Notes to Financial Statements." See accompanying notes 24 <page> Statements of operations Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund Year Ended July 31, 2006 Delaware Extended Delaware Corporate Duration Bond Fund Bond Fund Investment Income: Interest $ 25,743,228 $ 9,751,366 Dividends 50,035 16,005 Foreign tax withheld 850 - ____________ ___________ 25,794,113 9,767,371 ____________ ___________ Expenses: Management fees 2,238,307 873,794 Distribution expense - Class A 467,594 235,811 Distribution expense - Class B 239,185 69,080 Distribution expense - Class C 440,277 109,694 Distribution expense - Class R 23,552 11 Dividend disbursing and transfer agent fees and expenses 537,848 339,725 Accounting and administration expenses 179,986 63,949 Reports and statements to shareholders 138,911 35,393 Registration fees 101,043 85,026 Professional fees 85,904 23,063 Trustees' fees 23,096 8,194 Custodian fees 21,986 10,920 Insurance fees 14,474 6,298 Pricing fees 10,017 8,090 Taxes (other than taxes on income) 2,290 699 Other 14,808 8,764 ____________ ___________ 4,539,278 1,878,511 Less expenses absorbed or waived (851,058) (590,177) Less waiver of distribution expenses - Class A (77,932) (39,302) Less waiver of distribution expenses - Class R (3,925) (1) Less expense paid indirectly - (1,477) ____________ ___________ Total operating expenses 3,606,363 1,247,554 ____________ ___________ Net Investment Income 22,187,750 8,519,817 ____________ ___________ Net Realized and Unrealized Loss on Investments and Foreign Currencies: Net realized loss on: Investments (5,701,780) (3,389,104) Futures contracts (1,390,979) (3,058,419) Foreign currencies (837,079) (275,553) ____________ ___________ Net realized loss (7,929,838) (6,723,076) Net change in unrealized appreciation/depreciation of investments and foreign currencies (8,941,724) (6,030,443) ____________ ___________ Net Realized and Unrealized Loss on Investments and Foreign Currencies (16,871,562) (12,753,519) ____________ ___________ Net Increase (Decrease) in Net Assets Resulting from Operations $ 5,316,188 $(4,233,702) ____________ ___________ See accompanying notes 25 <page> Statements of changes in net assets Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund Delaware Corporate Delaware Extended Duration Bond Fund Bond Fund Year Ended Year Ended 7/31/06 7/31/05 7/31/06 7/31/05 Increase (Decrease) in Net Assets from Operations: Net investment income $ 22,187,750 $ 13,422,941 $ 8,519,817 $ 4,591,784 Net realized gain (loss) on investments and foreign currencies (7,929,838) 4,050,027 (6,723,076) 3,757,115 Net change in unrealized appreciation/depreciation of investments and foreign currencies (8,941,724) 2,537,346 (6,030,443) 1,401,740 ____________ ____________ ____________ ____________ Net increase (decrease) in net assets resulting from operations 5,316,188 20,010,314 (4,233,702) 9,750,639 ____________ ____________ ____________ ____________ Dividends and Distributions to Shareholders from: Net investment income: Class A (8,637,844) (4,476,591) (4,371,012) (1,749,163) Class B (1,135,624) (950,409) (328,905) (277,133) Class C (2,096,816) (1,076,891) (526,030) (258,941) Class R (206,642) (91,868) (99) - Institutional Class (12,571,536) (8,153,570) (3,590,579) (2,587,552) Net realized gain on investments: Class A (527,705) (1,020,537) (665,542) (838,361) Class B (89,966) (258,873) (65,519) (199,563) Class C (158,079) (279,634) (95,451) (171,958) Class R (10,588) (19,889) (9) - Institutional Class (789,910) (1,397,911) (495,282) (1,463,367) ____________ ____________ ____________ ____________ (26,224,710) (17,726,173) (10,138,428) (7,546,038) ____________ ____________ ____________ ____________ Capital Share Transactions: Proceeds from shares sold: Class A 116,965,373 67,510,111 70,033,345 44,757,568 Class B 5,480,756 6,587,587 1,596,666 2,260,874 Class C 26,840,816 16,718,033 7,767,959 4,847,769 Class R 5,286,473 2,294,745 22,712 - Institutional Class 69,191,641 109,274,403 34,246,110 18,354,063 Net asset value of shares issued upon reinvestment of dividends and distributions: Class A 6,026,893 3,833,309 3,475,657 1,717,296 Class B 747,693 698,514 268,415 324,939 Class C 1,607,530 972,083 453,128 292,717 Class R 199,553 110,054 78 - Institutional Class 8,720,594 5,784,351 1,194,150 1,087,272 Net assets from reorganization(1): Class A 90,009,269 - - - ____________ ____________ ____________ ____________ 331,076,591 213,783,190 119,058,220 73,642,498 ____________ ____________ ____________ ____________ Cost of shares repurchased: Class A $(65,553,470) $(30,692,383) $(32,301,474) $(8,613,255) Class B (5,157,997) (4,094,480) (1,811,833) (1,379,079) Class C (10,799,030) (6,046,918) (4,352,401) (2,089,944) Class R (1,875,122) (666,356) (303) - Institutional Class (34,395,149) (18,298,850) (13,025,806) (8,661,124) ____________ ____________ ____________ ____________ (117,780,768) (59,798,987) (51,491,817) (20,743,402) ____________ ____________ ____________ ____________ Increase in net assets derived from capital share transactions 213,295,823 153,984,203 67,566,403 52,899,096 ____________ ____________ ____________ ____________ Net Increase in Net Assets 192,387,301 156,268,344 53,194,273 55,103,697 ____________ ____________ ____________ ____________ Net Assets: Beginning of year 376,935,105 220,666,761 125,709,772 70,606,075 ____________ ____________ ____________ ____________ End of year $569,322,406 $376,935,105 $178,904,045 $125,709,772 ____________ ____________ ____________ ____________ Undistributed (distributions in excess of) net investment income $ (753,270) $ 791,358 $ (75,228) $ 198,164 ____________ ____________ ____________ ____________ (1) See Note 6 in "Notes to Financial Statements." See accompanying notes 26 <page> Financial highlights Delaware Corporate Bond Fund Class A Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _____________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ___________________________________________________________________________________________________________________________________ Net asset value, beginning of period $ 5.780 $ 5.700 $ 5.620 $ 5.220 $ 5.370 Income (loss) from investment operations: Net investment income (1) 0.276 0.260 0.296 0.339 0.364 Net realized and unrealized gain (loss) on investments and foreign currencies (0.239) 0.174 0.183 0.410 (0.152) ________ _______ _______ _______ _______ Total from investment operations 0.037 0.434 0.479 0.749 0.212 ________ _______ _______ _______ _______ Less dividends and distributions: Net investment income (0.306) (0.286) (0.307) (0.349) (0.362) Net realized gain on investments (0.021) (0.068) (0.092) - - ________ _______ _______ _______ _______ Total dividends and distributions (0.327) (0.354) (0.399) (0.349) (0.362) ________ _______ _______ _______ _______ Net asset value, end of period $ 5.490 $ 5.780 $ 5.700 $ 5.620 $ 5.220 ________ _______ _______ _______ _______ Total return (2) 0.70% 7.76% 8.65% 14.61% 4.02% Ratios and supplemental data: Net assets, end of period (000 omitted) $256,776 $115,456 $73,867 $34,707 $17,932 Ratio of expenses to average net assets 0.81% 0.82% 0.80% 0.80% 0.80% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.05% 1.08% 1.17% 1.32% 1.22% Ratio of net investment income to average net assets 4.95% 4.48% 5.09% 5.98% 6.79% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 4.71% 4.22% 4.72% 5.46% 6.37% Portfolio turnover 173% 232% 300% 861% 1044% ___________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2006, 2005 and 2004. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager and distributor, as applicable. Performance would have been lower had the expense limitation not been in effect. See accompanying notes (continues) 27 <page> Financial highlights Delaware Corporate Bond Fund Class B Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _____________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ___________________________________________________________________________________________________________________________________ Net asset value, beginning of period $ 5.770 $ 5.700 $ 5.620 $ 5.220 $ 5.370 Income (loss) from investment operations: Net investment income (1) 0.234 0.216 0.253 0.298 0.325 Net realized and unrealized gain (loss) on investments and foreign currencies (0.239) 0.164 0.183 0.410 (0.152) _______ _______ _______ _______ _______ Total from investment operations (0.005) 0.380 0.436 0.708 0.173 _______ _______ _______ _______ _______ Less dividends and distributions from: Net investment income (0.264) (0.242) (0.264) (0.308) (0.323) Net realized gain on investments (0.021) (0.068) (0.092) - - _______ _______ _______ _______ _______ Total dividends and distributions (0.285) (0.310) (0.356) (0.308) (0.323) _______ _______ _______ _______ _______ Net asset value, end of period $ 5.480 $ 5.770 $ 5.700 $ 5.620 $ 5.220 _______ _______ _______ _______ _______ Total return (2) 0.13% 6.77% 7.85% 13.78% 3.25% Ratios and supplemental data: Net assets, end of period (000 omitted) $23,792 $23,963 $20,510 $18,551 $11,709 Ratio of expenses to average net assets 1.56% 1.57% 1.55% 1.55% 1.55% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.75% 1.78% 1.87% 2.03% 1.97% Ratio of net investment income to average net assets 4.20% 3.73% 4.33% 5.23% 6.04% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 4.01% 3.52% 4.01% 4.75% 5.62% Portfolio turnover 173% 232% 300% 861% 1044% ___________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2006, 2005 and 2004. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager. Performance would have been lower had the expense limitation not been in effect. See accompanying notes 28 <page> Delaware Corporate Bond Fund Class C Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _____________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ___________________________________________________________________________________________________________________________________ Net asset value, beginning of period $ 5.780 $ 5.700 $ 5.620 $ 5.220 $ 5.370 Income (loss) from investment operations: Net investment income (1) 0.234 0.216 0.253 0.297 0.324 Net realized and unrealized gain (loss) on investments and foreign currencies (0.239) 0.174 0.183 0.410 (0.152) _______ _______ _______ _______ _______ Total from investment operations (0.005) 0.390 0.436 0.707 0.172 _______ _______ _______ _______ _______ Less dividends and distributions from: Net investment income (0.264) (0.242) (0.264) (0.307) (0.322) Net realized gain on investments (0.021) (0.068) (0.092) - - _______ _______ _______ _______ _______ Total dividends and distributions (0.285) (0.310) (0.356) (0.307) (0.322) _______ _______ _______ _______ _______ Net asset value, end of period $ 5.490 $ 5.780 $ 5.700 $ 5.620 $ 5.220 _______ _______ _______ _______ _______ Total return (2) (0.05%) 6.95% 7.86% 13.77% 3.24% Ratios and supplemental data: Net assets, end of period (000 omitted) $48,425 $33,013 $21,139 $18,313 $ 6,063 Ratio of expenses to average net assets 1.56% 1.57% 1.55% 1.55% 1.55% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.75% 1.78% 1.87% 2.03% 1.97% Ratio of net investment income to average net assets 4.20% 3.73% 4.33% 5.23% 6.04% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 4.01% 3.52% 4.01% 4.75% 5.62% Portfolio turnover 173% 232% 300% 861% 1044% ___________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2006, 2005 and 2004. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager. Performance would have been lower had the expense limitation not been in effect. See accompanying notes (continues) 29 <page> Financial highlights Delaware Corporate Bond Fund Class R Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended ____________________________________________ 6/2/03 (1) to 7/31/06 7/31/05 7/31/04 7/31/03 ____________________________________________________________________________________________________________________________________ Net asset value, beginning of period $5.780 $5.700 $5.620 $5.930 Income (loss) from investment operations: Net investment income (2) 0.262 0.240 0.273 0.030 Net realized and unrealized gain (loss) on investments and foreign currencies (0.239) 0.174 0.188 (0.300) ______ ______ ______ ______ Total from investment operations 0.023 0.414 0.461 (0.270) ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.292) (0.266) (0.289) (0.040) Net realized gain on investments (0.021) (0.068) (0.092) - ______ ______ ______ ______ Total dividends and distributions (0.313) (0.334) (0.381) (0.040) ______ ______ ______ ______ Net asset value, end of period $5.490 $5.780 $5.700 $5.620 ______ ______ ______ ______ Total return(3) 0.45% 7.38% 8.33% (4.58%) Ratios and supplemental data: Net assets, end of period (000 omitted) $6,048 $2,608 $ 869 $ 0 Ratio of expenses to average net assets 1.06% 1.17% 1.15% 1.15% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.35% 1.38% 1.47% 1.57% Ratio of net investment income to average net assets 4.70% 4.13% 4.73% 4.93% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 4.41% 3.92% 4.41% 4.51% Portfolio turnover 173% 232% 300% 861% (4) ___________________________________________________________________________________________________________________________________ (1) Date of commencement of operations; ratios have been annualized and total return has not been annualized. (2) The average shares outstanding method has been applied for per share information for the years ended July 31, 2006, 2005 and 2004. (3) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value. Total investment return reflects waivers and payment of fees by the manager and distributor, as applicable. Performance would have been lower had the expense limitation not been in effect. (4) Represents portfolio turnover for the Fund for the entire year. See accompanying notes 30 <page> Delaware Corporate Bond Fund Institutional Class Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _____________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ___________________________________________________________________________________________________________________________________ Net asset value, beginning of period $ 5.770 $ 5.700 $ 5.620 $ 5.220 $ 5.370 Income (loss) from investment operations: Net investment income (1) 0.289 0.274 0.310 0.354 0.378 Net realized and unrealized gain (loss) on investments and foreign currencies (0.238) 0.164 0.183 0.410 (0.152) ________ _______ _______ _______ _______ Total from investment operations 0.051 0.438 0.493 0.764 0.226 ________ _______ _______ _______ _______ Less dividends and distributions from: Net investment income (0.320) (0.300) (0.321) (0.364) (0.376) Net realized gain on investments (0.021) (0.068) (0.092) - - ________ _______ _______ _______ _______ Total dividends and distributions (0.341) (0.368) (0.413) (0.364) (0.376) ________ _______ _______ _______ _______ Net asset value, end of period $ 5.480 $ 5.770 $ 5.700 $ 5.620 $ 5.220 ________ ________ ________ _______ _______ Total return (2) 0.95% 7.84% 8.92% 14.92% 4.29% Ratios and supplemental data: Net assets, end of period (000 omitted) $234,281 $201,895 $104,282 $72,744 $52,681 Ratio of expenses to average net assets 0.56% 0.57% 0.55% 0.55% 0.55% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 0.75% 0.78% 0.87% 1.03% 0.97% Ratio of net investment income to average net assets 5.20% 4.73% 5.33% 6.23% 7.04% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 5.01% 4.52% 5.01% 5.75% 6.62% Portfolio turnover 173% 232% 300% 861% 1044% ___________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2006, 2005 and 2004. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value. Total investment return reflects waivers and payment of fees by the manager. Performance would have been lower had the expense limitation not been in effect. See accompanying notes (continues) 31 Financial highlights Delaware Extended Duration Bond Fund Class A Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _____________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ___________________________________________________________________________________________________________________________________ Net asset value, beginning of period $ 5.940 $ 5.770 $ 5.550 $ 5.050 $ 5.260 Income (loss) from investment operations: Net investment income (1) 0.299 0.292 0.334 0.373 0.384 Net realized and unrealized gain (loss) on investments and foreign currencies (0.468) 0.390 0.322 0.500 (0.218) _______ _______ _______ _______ _______ Total from investment operations (0.169) 0.682 0.656 0.873 0.166 _______ _______ _______ _______ _______ Less dividends and distributions from: Net investment income (0.309) (0.312) (0.339) (0.373) (0.376) Net realized gain on investments (0.052) (0.200) (0.097) - - _______ _______ _______ _______ _______ Total dividends and distributions (0.361) (0.512) (0.436) (0.373) (0.376) _______ _______ _______ _______ _______ Net asset value, end of period $ 5.410 $ 5.940 $ 5.770 $ 5.550 $ 5.050 _______ _______ _______ _______ _______ Total return (2) (2.89%) 12.17% 11.99% 17.55% 3.16% Ratios and supplemental data: Net assets, end of period (000 omitted) $92,132 $58,003 $19,439 $ 9,539 $ 4,629 Ratio of expenses to average net assets 0.80% 0.84% 0.80% 0.80% 0.80% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.22% 1.31% 1.30% 1.24% 1.23% Ratio of net investment income to average net assets 5.35% 4.92% 5.72% 6.65% 7.34% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 4.93% 4.45% 5.22% 6.21% 6.91% Portfolio turnover 184% 233% 267% 789% 923% ___________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2006, 2005 and 2004. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager and distributor, as applicable. Performance would have been lower had the expense limitation not been in effect. See accompanying notes 32 <page> Delaware Extended Duration Bond Fund Class B Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _____________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ___________________________________________________________________________________________________________________________________ Net asset value, beginning of period $5.930 $5.760 $5.550 $5.050 $5.260 Income (loss) from investment operations: Net investment income (1) 0.257 0.247 0.291 0.332 0.343 Net realized and unrealized gain (loss) on investments and foreign currencies (0.458) 0.391 0.312 0.500 (0.218) _______ _______ _______ _______ _______ Total from investment operations (0.201) 0.638 0.603 0.832 0.125 _______ _______ _______ _______ _______ Less dividends and distributions from: Net investment income (0.267) (0.268) (0.296) (0.332) (0.335) Net realized gain on investments (0.052) (0.200) (0.097) _ _ ______ ______ ______ ______ ______ Total dividends and distributions (0.319) (0.468) (0.393) (0.332) (0.335) ______ ______ ______ ______ ______ Net asset value, end of period $5.410 $5.930 $5.760 $5.550 $5.050 ______ ______ ______ ______ ______ Total return (2) (3.45%) 11.35% 10.98% 16.70% 2.37% Ratios and supplemental data: Net assets, end of period (000 omitted) $6,371 $6,964 $5,597 $5,375 $3,413 Ratio of expenses to average net assets 1.55% 1.59% 1.55% 1.55% 1.55% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.92% 2.01% 2.00% 1.95% 1.98% Ratio of net investment income to average net assets 4.60% 4.17% 4.97% 5.90% 6.59% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 4.23% 3.75% 4.52% 5.50% 6.16% Portfolio turnover 184% 233% 267% 789% 923% ___________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2006, 2005 and 2004. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager. Performance would have been lower had the expense limitation not been in effect. See accompanying notes (continues) 33 <page> Financial highlights Delaware Extended Duration Bond Fund Class C Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _____________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ___________________________________________________________________________________________________________________________________ Net asset value, beginning of period $5.930 $5.760 $5.550 $5.050 $5.260 Income (loss) from investment operations: Net investment income (1) 0.257 0.248 0.291 0.331 0.343 Net realized and unrealized gain (loss) on investments and foreign currencies (0.450) 0.390 0.312 0.500 (0.218) ______ ______ ______ ______ ______ Total from investment operations (0.201) 0.638 0.603 0.831 0.125 ______ ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.267) (0.268) (0.296) (0.331) (0.335) Net realized gain on investments (0.052) (0.200) (0.097) _ _ ______ ______ ______ ______ ______ Total dividends and distributions (0.319) (0.468) (0.393) (0.331) (0.335) ______ ______ ______ ______ ______ Net asset value, end of period $5.410 $5.930 $5.760 $5.550 $5.050 ______ ______ ______ ______ ______ Total return (2) (3.45%) 11.35% 10.98% 16.67% 2.37% Ratios and supplemental data: Net assets, end of period (000 omitted) $11,021 $8,196 $5,025 $4,751 $1,431 Ratio of expenses to average net assets 1.55% 1.59% 1.55% 1.55% 1.55% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.92% 2.01% 2.00% 1.95% 1.98% Ratio of net investment income to average net assets 4.60% 4.17% 4.97% 5.90% 6.59% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 4.23% 3.75% 4.52% 5.50% 6.16% Portfolio turnover 184% 233% 267% 789% 923% ___________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2006, 2005 and 2004. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager. Performance would have been lower had the expense limitation not been in effect. See accompanying notes 34 <page> Delaware Extended Duration Bond Fund Class R Selected data for each share of the Fund outstanding throughout each period were as follows: 10/1/05 (1) to 7/31/06 _____________________________________________________________________________________________________________________ Net asset value, beginning of period $5.820 Income (loss) from investment operations: Net investment income (2) 0.236 Net realized and unrealized gain (loss) on investments and foreign currencies (0.391) ______ Total from investment operations (0.155) ______ Less dividends and distributions from: Net investment income (0.203) Net realized gain on investments (0.052) ______ Total dividends and distributions (0.255) ______ Net asset value, end of period $5.410 ______ Total return (3) (2.67%) Ratios and supplemental data: Net assets, end of period (000 omitted) $ 23 Ratio of expenses to average net assets 1.05% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.52% Ratio of net investment income to average net assets 5.12% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 4.65% Portfolio turnover 184% (4) _____________________________________________________________________________________________________________________ (1) Date of commencement of operations; ratios have been annualized and total return has not been annualized. (2) The average shares outstanding method has been applied for per share information. (3) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value. Total investment return reflects waivers and payment of fees by the manager and distributor. Performance would have been lower had the expense limitation not been in effect. (4) Represents portfolio turnover for the Fund for the entire year. See accompanying notes (continues) 35 <page> Financial highlights Delaware Extended Duration Bond Fund Institutional Class Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _____________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ___________________________________________________________________________________________________________________________________ Net asset value, beginning of period $5.930 $5.760 $5.550 $5.050 $5.260 Income (loss) from investment operations: Net investment income (1) 0.313 0.307 0.350 0.387 0.397 Net realized and unrealized gain (loss) on investments and foreign currencies (0.458) 0.391 0.312 0.500 (0.218) _______ _______ _______ _______ _______ Total from investment operations (0.145) 0.698 0.662 0.887 0.179 _______ _______ _______ _______ _______ Less dividends and distributions from: Net investment income (0.323) (0.328) (0.355) (0.387) (0.389) Net realized gain on investments (0.052) (0.200) (0.097) _ _ _______ _______ _______ _______ _______ Total dividends and distributions (0.375) (0.528) (0.452) (0.387) (0.389) _______ _______ _______ _______ _______ Net asset value, end of period $5.410 $5.930 $5.760 $5.550 $5.050 _______ _______ _______ _______ _______ Total return (2) (2.48%) 12.47% 12.10% 17.87% 3.43% Ratios and supplemental data: Net assets, end of period (000 omitted) $69,357 $52,547 $40,545 $49,891 $56,664 Ratio of expenses to average net assets 0.55% 0.59% 0.55% 0.55% 0.55% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 0.92% 1.01% 1.00% 0.95% 0.98% Ratio of net investment income to average net assets 5.60% 5.17% 5.97% 6.90% 7.59% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 5.23% 4.75% 5.52% 6.50% 7.16% Portfolio turnover 184% 233% 267% 789% 923% ___________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2006, 2005 and 2004. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value. Total investment return reflects waivers and payment of fees by the manager. Performance would have been lower had the expense limitation not been in effect. See accompanying notes 36 Notes to financial statements Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund July 31, 2006 Delaware Group Income Funds (the "Trust") is organized as a Delaware statutory trust and offers four series: Delaware Corporate Bond Fund, Delaware Delchester Fund, Delaware Extended Duration Bond Fund and Delaware High-Yield Opportunities Fund. These financial statements and the related notes pertain to the Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund (each referred to as a "Fund" or collectively as the "Funds"). The Trust is an open-end investment company. The Funds are considered diversified under the Investment Company Act of 1940, as amended, and offer Class A, Class B, Class C, Class R and Institutional Class shares. Class A shares are sold with a front-end sales charge of up to 4.50%. Class B shares are sold with a contingent deferred sales charge that declines from 4% to zero depending upon the period of time the shares are held. Class B shares will automatically convert to Class A shares on a quarterly basis approximately eight years after purchase. Class C shares are sold with a contingent deferred sales charge of 1%, if redeemed during the first 12 months. Class R and Institutional Class shares are not subject to a sales charge and are offered for sale exclusively to a limited group of investors. The investment objective of the Funds is to seek to provide investors with total return. 1. Significant Accounting Policies The following accounting policies are in accordance with U.S. generally accepted accounting principles and are consistently followed by the Funds. Security Valuation - Equity securities, except those traded on the Nasdaq Stock Markets, Inc. (Nasdaq), are valued at the last quoted sales price as of the time of the regular close of the New York Stock Exchange (NYSE) on the valuation date. Securities traded on the Nasdaq are valued in accordance with the Nasdaq Official Closing Price, which may not be the last sales price. If on a particular day an equity security does not trade, then the mean between the bid and asked prices will be used. Securities listed on a foreign exchange are valued at the last quoted sales price before each Fund is valued. U.S. government and agency securities are valued at the mean between the bid and asked prices. Other long-term debt securities are valued by an independent pricing service and such prices are believed to reflect the fair value of such securities. Short-term debt securities having less than 60 days to maturity are valued at amortized cost, which approximates market value. Forward foreign currency exchange contracts and forward foreign cross-currency exchange contracts are valued at the mean between the bid and asked prices of the contracts and are marked-to-market daily. Interpolated values are derived when the settlement date of the contract is an interim date for which quotations are not available. Futures contracts are valued at the daily quoted settlement prices. Other securities and assets for which market quotations are not readily available are valued at fair value as determined in good faith under the direction of the Funds' Board of Trustees. In determining whether market quotations are readily available or fair valuation will be used, various factors will be taken into consideration, such as market closures, or with respect to foreign securities, aftermarket trading or significant events after local market trading (e.g., government actions or pronouncements, trading volume or volatility on markets, exchanges among dealers, or news events). Federal Income Taxes - Each Fund intends to continue to qualify for federal income tax purposes as a regulated investment company and make the requisite distributions to shareholders. Accordingly, no provision for federal income taxes has been made in the financial statements. On July 13, 2006, the Financial Accounting Standards Board (FASB) released FASB Interpretation No. 48 "Accounting for Uncertainty in Income Taxes" (FIN 48). FIN 48 provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements. FIN 48 requires the evaluation of tax positions taken or expected to be taken in the course of preparing each 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 would be recorded as a tax benefit or expense in the current year. Adoption of FIN 48 is required for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. Although each Fund's tax positions are currently being evaluated, management does not expect the adoption of FIN 48 to have a material impact on each Fund's financial statements. Class Accounting - Investment income and common expenses are allocated to the classes of the Fund on the basis of "settled shares" of each class in relation to the net assets of the Funds. Realized and unrealized gain (loss) on investments are allocated to the various classes of the Funds on the basis of daily net assets of each class. Distribution expenses relating to a specific class are charged directly to that class. Repurchase Agreements - Each Fund may invest in a pooled cash account along with other members of the Delaware Investments(R) Family of Funds pursuant to an exemptive order issued by the Securities and Exchange Commission. The aggregate daily balance of the pooled cash account is invested in repurchase agreements secured by obligations of the U.S. government. The respective collateral is held by each Fund's custodian bank until the maturity of the respective repurchase agreements. Each repurchase agreement is at least 102% collateralized. However, in the event of default or bankruptcy by the counterparty to the agreement, realization of the collateral may be subject to legal proceedings. Foreign Currency Transactions - Transactions denominated in foreign currencies are recorded at the prevailing exchange rates on the valuation date. The value of all assets and liabilities denominated in foreign currencies is translated into U.S. dollars at the exchange rate of such currencies against the U.S. dollar daily. Transaction gains or losses resulting from changes in exchange rates during the reporting period or upon settlement of the foreign currency transaction are reported in operations for the current period. The Funds isolate that portion of realized gains and losses on investments in debt securities, which are due to changes in foreign exchange rates from that which are due to changes in market prices of debt securities. The Funds report certain foreign currency related transactions as components of realized gains (losses) for financial reporting purposes, where such components are treated as ordinary income (loss) for federal income tax purposes. Use of Estimates - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of 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. (continues) 37 <page> Notes to financial statements Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund Other - Expenses common to all funds within the Delaware Investments Family of Funds are allocated amongst the 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. Dividend income is recorded on the ex-dividend date and interest income is recorded on the accrual basis. Discounts and premiums are amortized to interest income over the lives of the respective securities. Realized gains (losses) on paydowns of mortgage - and asset-backed securities are classified as interest income. Witholding taxes on foreign interest have been recorded in accordance with each Fund's understanding of the applicable country's tax rules and rates. Each 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. The Funds receive earnings credits from their custodian when positive cash balances are maintained, which are used to offset custody fees. The expense paid under the above arrangement is included in custodian fees on the Statements of Operations with the corresponding expense offset shown as "expense paid indirectly." 2. Investment Management, Administration Agreements and Other Transactions with Affiliates In accordance with the terms of its respective investment management agreement, each Fund pays Delaware Management Company (DMC), a series of Delaware Management Business Trust and the investment manager, an annual fee, which is calculated based on each Fund's average daily net assets as follows: Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund _________ _________ On the first $500 million 0.500% 0.550% On the next $500 million 0.475% 0.500% On the next $1.5 billion 0.450% 0.450% In excess of $2.5 billion 0.425% 0.425% DMC has contractually agreed to waive that portion, if any, of its management fee and reimburse each Fund to the extent necessary to ensure that annual operating expenses, exclusive of taxes, interest, brokerage commissions, distribution fees, certain insurance costs and extraordinary expenses, do not exceed 0.55% of average daily net assets for each Fund through November 30, 2006. Delaware Service Company, Inc. (DSC), an affiliate of DMC, provides accounting, administration, dividend disbursing and transfer agent services. Each Fund pays DSC a monthly fee computed at the annual rate 0.04% of the Fund's average daily net assets for accounting and administration services. The Funds pay 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, each 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 Class A shares, 1.00% of the average daily net assets of the Class B and C shares and 0.60% of the average daily net assets of Class R shares. Institutional Class shares pay no distribution and service expenses. DDLP has contracted to waive distribution and service fees through November 30, 2006 in order to prevent distribution and service fees of Class A shares from exceeding 0.25% of average daily net assets and distribution and service fees of Class R shares from exceeding 0.50% of average daily net assets. At July 31, 2006, each Fund had receivables due from or liabilities payable to affiliates as follows: Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund _________ _________ Investment Management fee payable (receivable) to DMC $81,501 $(4,660) Dividend disbursing, transfer agent, accounting and administration fees and other expenses payable to DSC 75,710 39,507 Distribution fees payable to DDLP 117,523 34,665 Other expenses payable to DMC and affiliates* 18,803 5,573 * DMC, as part of its administrative services, pays operating expenses on behalf of each 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, each Fund bears the cost of certain legal services, including internal legal services provided to the Funds by DMC employees. For the year ended July 31, 2006, the Delaware Corporate Bond Fund and Extended Duration Bond Fund were charged $25,684 and $8,982, respectively for internal legal services provided by DMC. For the year ended July 31, 2006, DDLP earned commissions on sales of Class A shares for each Fund as follows: Delaware Corporate Bond Fund $55,819 Delaware Extended Duration Bond Fund 30,806 For the year ended July 31, 2006, DDLP received gross contingent deferred sales charge commissions on redemption of each Fund's Class A, 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. The amounts received were as follows: Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund _________ _________ Class A $ 5 $ 100 Class B 49,111 15,330 Class C 11,750 5,236 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 Funds. 38 <page> 3. Investments For the year ended July 31, 2006, the Funds made purchases and sales of investments securities other than short-term investments as follows: Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund ____________ _____________ Purchases other than U.S. government securities $599,750,255 $232,098,852 Purchases of U.S. government securities 290,741,731 121,643,764 Sales other than U.S. government securities 482,322,226 161,873,187 Sales of U.S. government securities 281,323,974 124,453,520 At July 31, 2006, the cost of investments and unrealized appreciation (depreciation) for federal income tax purposes for each Fund were as follows: Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund ____________ _____________ Cost of investments $581,154,076 $184,743,216 ____________ _____________ Aggregate unrealized appreciation $ 4,774,534 $ 1,816,003 Aggregate unrealized depreciation (15,817,731) (6,425,093) ____________ _____________ Net unrealized depreciation $(11,043,197) $ (4,609,090) ____________ _____________ 4. Dividend and Distribution Information Income and long-term capital gain distributions are determined in accordance with federal income tax regulations, which may differ from U.S. generally accepted accounting principles. Additionally, gains (losses) on foreign currency transactions and net short-term gains on sales of investment securities are treated as ordinary income for federal income tax purposes. The tax character of dividends and distributions paid during the years ended July 31, 2006 and July 31, 2005 was as follows: Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund ________________________ _______________________ 2006 2005 2006 2005 Ordinary income $25,115,850 $16,740,938 $ 9,450,017 $6,102,484 Long-term capital gain 1,108,860 985,235 688,411 1,443,554 ___________ ___________ ___________ __________ Total $26,224,710 $17,726,173 $10,138,428 $7,546,038 ___________ ___________ ___________ __________ As of July 31, 2006, the components of net assets on a tax basis were as follows: Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund ____________ _____________ Shares of beneficial interest $590,759,627 $189,140,010 Undistributed ordinary income 251,883 255,880 Post-October currency losses (869,564) (306,345) Post-October capital losses (6,881,777) (4,737,415) Capital loss carryforwards (2,675,762) (807,298) Other temporary differences (205,952) (41,216) Unrealized depreciation on investments and foreign currency (11,056,049) (4,599,571) ____________ _____________ Net Assets $569,322,406 $178,904,045 ____________ _____________ Post-October losses represent losses realized on investments and foreign currency transactions from November 1, 2005 through July 31, 2006 that, in accordance with federal income tax regulations, the Funds have elected to defer and treat as having arisen in the following fiscal year. The differences between book basis and tax basis components of the net assets are primarily attributable to tax deferral of losses on wash sales, mark-to-market on futures contracts, mark-to-market on foreign currency contracts, straddle deferrals and tax treatment of market discount and premium on debt instruments. For financial reporting purposes, capital accounts are adjusted to reflect the tax character of permanent book/tax differences. Reclassifications are primarily due to tax treatment of gain (loss) on foreign currency transactions, dividends and distributions, market discount and premium on certain debt instruments and paydowns of mortgage- and asset-backed securities. Results of operations and net assets were not affected by these reclassifications. For the year ended July 31, 2006, the Funds recorded the following reclassifications. Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund __________ __________ Undistributed net investment income $954,283 $23,416 Accumulated net realized gain (loss) (954,283) (23,416) For federal income tax purposes, capital loss carryforwards may be carried forward and applied against future capital gains. Capital loss carryforwards remaining at July 31, 2006 will expire as follows: Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund __________ __________ 2013 $2,155,797 $ - 2014 519,965 807,298 __________ __________ Total $2,675,762 $807,298 __________ __________ (continues) 39 <page> Notes to financial statements Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund 5. Capital Shares Transactions in capital shares were as follows: Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund __________________________ __________________________ Year Ended Year Ended 7/31/06 7/31/05 7/31/06 7/31/05 Shares sold: Class A 20,908,895 11,643,840 12,487,326 7,551,366 Class B 979,102 1,135,587 281,248 380,255 Class C 4,772,696 2,881,177 1,364,818 810,930 Class R 956,999 394,848 4,232 - Institutional Class 12,395,281 18,818,176 6,109,855 3,097,764 Shares issued upon reinvestment of dividends and distributions: Class A 1,083,532 660,807 623,213 290,331 Class B 134,081 120,430 47,845 55,046 Class C 288,687 167,604 81,050 49,563 Class R 35,933 18,974 14 - Institutional Class 1,565,057 998,303 213,796 183,972 Shares issued from reorganization (1): Class A 16,637,573 - - - __________ __________ __________ __________ 59,757,836 36,839,746 21,213,397 12,419,227 __________ __________ __________ __________ Shares repurchased: Class A (11,804,693) (5,282,196) (5,860,545) (1,445,379) Class B (923,707) (706,318) (324,962) (232,505) Class C (1,949,500) (1,043,542) (790,258) (351,126) Class R (341,933) (114,773) (56) - Institutional Class (6,192,917) (3,154,442) (2,356,425) (1,458,597) __________ __________ __________ __________ (21,212,750) (10,301,271) (9,332,246) (3,487,607) __________ __________ __________ __________ Net increase 38,545,086 26,538,475 11,881,151 8,931,620 __________ __________ __________ __________ (1) See note 6. For the years ended July 31, 2006 and 2005, Class B shares converted to Class A shares as follows*: Year Year Ended Ended 7/31/06 7/31/05 Class B Class A Class B Class A Shares Shares Value Shares Shares Value _______ _______ ________ _______ _______ ________ Corporate Bond 114,996 114,996 $643,345 20,782 20,782 $120,347 Extended Duration 27,279 27,300 152,445 6,859 6,848 40,811 * The respective amounts are included in Class B redemptions and Class A subscriptions in the table above and the Statements of Changes in Net Assets. 6. Fund Reorganization Effective June 16, 2006, the Delaware Corporate Bond Fund completed the acquisition of the net assets of the Lincoln National Income Fund,Inc. ("LND Fund") pursuant to an Agreement and Plan of Acquisition (the "Plan of Acquisition") approved by the shareholders of LND Fund at a reconvened Special Meeting of Shareholders held on June 1, 2006. The transaction, which was structured as a tax-free reorganization, entailed (i) the acquisition of all of the assets of LND Fund by Delaware Corporate Bond Fund in exchange for Class A shares of Delaware Corporate Bond Fund and (ii) the pro rata distribution of such shares to LND Fund's shareholders in exchange for their shares of LND Fund. LND Fund was a closed-end, non-diversified investment management company managed by Delaware Management Company. The net assets, net unrealized depreciation and accumulated realized losses of LND Fund as of the close of business on June 16, 2006, were as follows: Accumulated Net Net Investment Net Unrealized Net Assets Loss Realized Loss Depreciation __________ _____________ _____________ ____________ Lincoln National Income Fund $90,009,269 $(38,199) $(2,585,050) $(2,605,091) The net assets of the Delaware Corporate Bond Fund prior to the acquisition were $466,560,627. 7. Line of Credit Each Fund, along with certain other funds in the Delaware Investments(R) Family of Funds (the "Participants"), participates in a $225,000,000 revolving line of credit facility to be used for temporary or emergency purposes as an additional source of liquidity to fund redemptions of investor shares. The Participants are charged an annual commitment fee, which is allocated across the Participants on the basis of each fund'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 Funds had no amounts outstanding as of July 31, 2006, or at any time during the year. 8. Foreign Currency Exchange Contracts Each Fund may enter into forward foreign currency exchange contracts and forward foreign cross currency exchange contracts as a way of managing foreign exchange rate risk. Each Fund may enter into these contracts to fix the U.S. dollar value of a security that it has agreed to buy or sell for the period between the date the trade was entered into and the date the security is delivered and paid for. The Funds may also use these contracts to hedge the U.S. dollar value of securities they already own that are denominated in foreign currencies. The change in market value is recorded as an unrealized gain or loss. When the contract is closed, a realized gain or loss is recorded equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. The use of forward foreign currency exchange contracts and forward foreign cross currency exchange contracts does not eliminate fluctuations in the underlying prices of the securities, but does establish a rate of exchange that can be achieved in the future. Although forward foreign currency exchange contracts limit the risk of loss due to a decline in the value of the hedged currency, they also limit any potential gain that might result should the value of the currency increase. In addition, the Funds could be exposed to risks if the counterparties to the contracts are unable to meet the terms of their contracts. The unrealized gain (loss) is included in liabilities net of receivables and other assets on the Statement of Net Assets. 9. Futures Contracts Each Fund may invest in financial futures contracts to hedge its existing portfolio securities against fluctuations in value caused by changes in prevailing market interest rates. Upon entering into a futures contract, 40 <page> each Fund deposits cash or pledges U.S. government securities to a broker, equal to the minimum "initial margin" requirements of the exchange on which the contract is traded. Subsequent payments are received from the broker or paid to the broker each day, based on the daily fluctuation in the market value of the contract. These receipts or payments are known as "variation margin" and are recorded daily by each Fund as unrealized gains or losses until the contracts are closed. When the contracts are closed, each Fund records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. Risk of entering into futures contracts include potential imperfect correlation between the futures contracts and the underlying securities and the possibility of an illiquid secondary market for these instruments. The unrealized gain (loss) is included in liabilities net of receivables and other assets on the Statement of Net Assets. 10. Credit and Market Risk Each Fund may invest in high yield fixed income securities, which carry ratings of BB or lower by Standard and Poor's Rating Group and/or Ba or lower by Moody's Investor Services, Inc. Investments in these higher yielding securities are generally accompanied by a greater degree of credit risk than higher rated securities. Additionally, lower rated securities may be more susceptible to adverse economic and competitive industry conditions than investment grade securities. Each Fund invests in fixed income securities whose value is derived from an underlying pool of mortgages or consumer loans. Investors receive principal and interest payments as the underlying mortgages and consumer loans are paid back. Some of these securities are collateralized mortgage obligations (CMOs). CMOs are debt securities issued by U.S.government agencies or by financial institutions and other mortgage lenders, which are collateralized by a pool of mortgages held under an indenture. Prepayment of mortgages may shorten the stated maturity of the obligation and can result in a loss of premium, if any has been paid. Certain of these securities may be stripped (securities, which provide only the principal or interest feature of the underlying security). The yield to maturity on an interest-only CMO is extremely sensitive not only to changes in prevailing interest rates, but also to the rate of principal payments (including prepayments) on the related underlying mortgage assets. A rapid rate of principal payments may have a material adverse effect on each Fund's yield to maturity. If the underlying mortgage assets experience greater than anticipated prepayments of principal, each Fund may fail to fully recoup its initial investment in these securities even if the securities are rated in the highest rating categories. Each Fund may invest up to 15% of its total 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, as amended, and other securities which may not be readily marketable. The relative illiquidity of these securities may impair each 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 the Board of Trustees has delegated to DMC the day-to-day functions of determining whether individual Rule 144A securities are liquid for purposes of the Fund's limitation on investments in illiquid assets. Rule 144A and illiquid securities have been identified on the Statements of Net Assets. 11. Contractual Obligations The Funds enter into contracts in the normal course of business that contain a variety of indemnifications. The Funds' maximum exposure under these arrangements is unknown. However, the Funds have not had prior claims or losses pursuant to theses contracts. Management has reviewed the Funds' existing contracts and expects the risk of loss to be remote. 12. Tax Information (Unaudited) The Information set forth below is for each Fund's fiscal year as required by federal laws. Shareholders, however, must report distributions on a calendar year basis for income tax purposes, which may include distributions for portions of two fiscal years of a fund. Accordingly, the information needed by shareholders for income tax purposes will be sent to them in January of each year. Please consult your tax advisor for proper treatment of this information. For the fiscal year ended July 31, 2006, each Fund designates distributions paid during the year as follows: Delaware Delaware Extended Corporate Duration Bond Fund Bond Fund _________ _________ (A) Long Term Capital Gains Distributions (Tax Basis) 4% 7% (B) Ordinary Income Distributions (Tax Basis)* 96% 93% Total Distributions (Tax Basis) 100% 100% (A) and (B) are based on a percentage of the Fund's total distributions. * For the fiscal year ended July 31, 2006, certain interest income paid by the Funds, determined to be Qualified Interest Income and Short-Term Capital Gains, may be subject to relief from U.S. withholding for foreign shareholders, as provided by the American Jobs Creation Act of 2004. For the fiscal year ended July 31, 2006, the Delaware Corporate Bond Fund and the Delaware Extended Duration Bond Fund have designated a maximum distribution of $23,938,796 and $8,814,717 of Qualified Interest Income, respectively. 41 <page> Report of independent registered public accounting firm To the Shareholders and Board of Trustees Delaware Group Income Funds - Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund We have audited the accompanying statements of net assets of Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund (two of the series constituting Delaware Group Income Funds) (the "Funds") as of July 31, 2006, and the related statements of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Funds' management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Funds' internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Funds' internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of July 31, 2006, by correspondence with the custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of the Delaware Corporate Bond Fund and the Delaware Extended Duration Bond Fund series of Delaware Group Income Funds at July 31,2006, the results of their operations for the year then ended, the changes in their net assets for each of the two years in the period then ended, and their financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ Ernst and Young LLP Philadelphia, Pennsylvania September 13, 2006 42 <page> Other Fund information Delaware Corporate Bond Fund Board Consideration of Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund Investment Advisory Agreement At a meeting held on May 17-18, 2006 (the "Annual Meeting"), the Board of Trustees, including a majority of disinterested or independent Trustees, approved the renewal of the Investment Advisory Agreements for the Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund (each a "Fund" and collectively the "Funds"). In making its decision, the Board considered information furnished throughout the year at regular Board meetings, as well as information prepared specifically in connection with the Annual Meeting. Information furnished and discussed throughout the year included reports detailing Fund performance, investment strategies, expenses, compliance matters and other services provided by Delaware Management Company ("DMC"), the investment advisor. Information furnished specifically in connection with the Annual Meeting included materials provided by DMC and its affiliates ("Delaware Investments") concerning, among other things, the level of services provided to the Funds, the costs of such services to the Funds, economies of scale and the financial condition and profitability of Delaware Investments. In addition, in connection with the Annual Meeting, the Board considered independent historical and comparative reports prepared by Lipper Inc. ("Lipper"), an independent statistical compilation organization. The Board also considered industry comparative information presented by representatives from Lipper. The Lipper reports compared each Fund's investment performance and expenses with those of other comparable mutual funds. The Board also received certain supplemental information regarding management's policy with respect to advisory fee levels and its philosophy with respect to breakpoints; the structure of portfolio manager compensation; and any constraints or limitations on the availability of securities in certain investment styles which might inhibit DMC's ability to fully invest in accordance with Fund policies. In considering such materials, the independent Trustees received assistance and advice from and met separately with independent counsel and representatives from Lipper. At the meeting with representatives from Lipper, Mr. Driscoll, then Chairman of the Delaware Investments(R) Family of Funds, and Chairman and Chief Executive Officer of the investment advisor, was present to respond to questions by Lipper and the independent Trustees. While the Board considered the Investment Advisory Agreements for all of the funds in the Delaware Investments Family of Funds at the same Board meeting, information was provided and considered by the Board for each fund individually. In approving the continuance of the Investment Advisory Agreement for each Fund, the Board, including a majority of independent Trustees, determined that the existing advisory fee structure was fair and reasonable and that the continuance of the Investment Advisory Agreement was in the best interests of the Fund and its shareholders. While attention was given to all information furnished, the following discusses the primary factors relevant to the Board's deliberations and determination, including those relating to the selection of the investment advisor and the approval of the advisory fee. Nature, Extent and Quality of Service. Consideration was given to the services provided by Delaware Investments to the Funds and their shareholders. In reviewing the nature, extent and quality of services, the Board emphasized reports furnished to it throughout the year at regular Board meetings covering matters such as the relative performance of the Funds, compliance of portfolio managers with the investment policies, strategies and restrictions for the Funds, the compliance of management personnel with the Code of Ethics adopted throughout the Delaware Investments Family of Funds complex, the adherence to fair value pricing procedures as established by the Board and the accuracy of net asset value calculations. The Board noted that it was pleased with the current staffing of the Funds' investment advisor and management's efforts to strengthen and deepen portfolio management teams during the past year, the emphasis on research and the compensation system for advisory personnel. Favorable consideration was given to DMC's efforts to maintain, and in some instances increase, financial and human resources committed to fund matters. Other factors taken into account by the Board were Delaware Investments' preparedness for, and response to, legal and regulatory matters. The Board also considered the transfer agent and shareholder services provided to Fund shareholders by Delaware Investments' affiliate, Delaware Service Company, Inc. ("DSC"), noting DSC's commitment to maintain a high level of service in keeping with its past receipt of the DALBAR Pyramid Award, and the continuing expenditures by Delaware Investments to improve the delivery of shareholder services. Additionally, the Board noted the extent of benefits provided to Fund shareholders for being part of the Delaware Investments Family of Funds, including the privilege to exchange investments between the same class of shares of funds without a sales charge, the ability to reinvest Fund dividends into other funds and the privilege to combine holdings in other funds to obtain a reduced sales charge. The Board was satisfied with the nature, extent and quality of the overall services provided by Delaware Investments. Investment Performance. The Board considered the investment performance of DMC and the Funds. The Board was pleased with DMC's investment performance. The Board placed significant emphasis on the investment performance of the Funds in view of its importance to shareholders. While consideration was given to performance reports and discussions with portfolio managers at Board meetings throughout the year, particular weight was given to the Lipper reports furnished for the Annual Meeting. The Lipper reports prepared for each Fund showed the investment performance of its Class A shares in comparison to a group of similar funds as selected by Lipper (the "Performance Universe"). A fund with the best performance is ranked first, and a fund with the poorest performance is ranked last. The highest/best performing 25% of funds in the Performance Universe make up the first quartile; the next 25% - the second quartile; the next 25% - the third quartile; and the poorest/worst performing 25% of funds in the Performance Universe make up the fourth quartile. Comparative annualized performance for the Funds was shown for the past one, three and five year periods ended January 31, 2006. The Board noted its objective that each Fund's performance for the periods considered be at or above the median of its Performance Universe. The following paragraphs summarize the performance results for each Fund and the Board's view of such performance. (continues) 43 <page> Other fund information Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund Delaware Corporate Bond Fund - The Performance Universe for the Fund consisted of the Fund and all retail and institutional BBB-rated corporate debt funds as selected by Lipper. The Lipper report comparison showed that the Fund's total return for the one year period was in the third quartile of such Performance Universe. The report further showed that the Fund's total return for the three and five year periods was in the first quartile. The Board noted that the Fund's performance results were mixed, but on an overall basis tended toward above median, which was acceptable. Delaware Extended Duration Bond Fund - The Performance Universe for the Fund consisted of the Fund and all retail and institutional BBB-rated corporate debt funds as selected by Lipper. The Lipper report comparison showed that the Fund's total return for the one year period was in the fourth quartile of such Performance Universe. The report further showed that the Fund's total return for the three and five year periods was in the first quartile. The Board noted that the Fund's performance results were mixed, but on an overall basis tended toward median, which was acceptable. Comparative Expenses. The Board considered expense data for the Delaware Investments(R) Family of Funds. Management provided the Board with information on pricing levels and fee structures for the Funds. The Board focused particularly on the comparative analysis of the management fees and total expense ratios of each Fund and the management fees and expense ratios of a group of similar funds as selected by Lipper (the "Expense Group"). In reviewing comparative costs, each Fund's contractual management fee and the actual management fee incurred by the Fund were compared with the contractual management fees (assuming all funds in the Expense Group were similar in size to the Fund) and actual management fees (as reported by each fund) of other funds within the Expense Group, taking into effect any applicable breakpoints and fee waivers. Each Fund's total expenses were also compared with those of its Expense Group. The Lipper total expenses, for comparative consistency, were shown by Lipper for Class A shares and compared total expenses including 12b-1 and non-12b-1 service fees. The Board also considered fees paid to Delaware Investments for non-management services. The Board noted its objective to limit each Fund's total expense ratio to an acceptable range as compared to the median of the Expense Group. The following paragraph summarizes the expense results for each Fund and the Board's view of such expenses. Delaware Corporate Bond Fund - The expense comparisons for the Fund showed that its actual management fee and total expenses were in the quartile with the lowest expenses of its Expense Group. The Board was satisfied with the management fees and total expenses of the Fund in comparison to its Expense Group as shown in the Lipper report. Delaware Extended Duration Bond Fund - The expense comparisons for the Fund showed that its actual management fee and total expenses were in the quartile with the lowest expenses of its Expense Group. The Board was satisfied with the management fees and total expenses of the Fund in comparison to its Expense Group as shown in the Lipper report. Management Profitability. The Board considered the level of profits, if any, realized by Delaware Investments in connection with the operation of the Funds. In this respect, the Board reviewed the Investment Management Profitability Analysis that addressed the overall profitability of Delaware Investments' business in providing management and other services to each of the individual funds and the Delaware Investments Family of Funds as a whole. Specific attention was given to the methodology followed in allocating costs for the purpose of determining profitability. Management stated that the level of profits of Delaware Investments, to a certain extent, reflected operational cost savings and efficiencies initiated by Delaware Investments. The Board considered Delaware Investments' expenditures to improve services provided to fund shareholders and to meet additional regulatory and compliance requirements resulting from recent SEC initiatives. The Board also considered the extent to which Delaware Investments might derive ancillary benefits from fund operations, including the potential for procuring additional business as a result of the prestige and visibility associated with its role as service provider to the Delaware Investments Family of Funds, the benefits from allocation of fund brokerage to improve trading efficiencies and the use of "soft" commission dollars to pay for proprietary and non-proprietary research. The Board did not find that the level of profits realized by Delaware Investments from the relationships with the Funds and the Delaware Investments Family of Funds required negotiation of reduction of fees. Economies of Scale. The Trustees considered whether economies of scale are realized by Delaware Investments as each Fund's assets increase and the extent to which any economies of scale are reflected in the level of management fees charged. The Trustees took into account the standardized advisory fee pricing and structure approved by the Board and shareholders as part of a complex-wide shareholder meeting conducted in 1998/1999. At that time, Delaware Investments introduced breakpoints to account for management economies of scale. The Board noted that the fee under each Fund's management contract fell within the standard structure. Although the Funds have not reached a size at which they can take advantage of breakpoints, the Board recognized that the fees were structured so that when the Funds grow economies of scale may be shared. 44 <page> Board of trustees/directors and officers addendum Delaware Investments(R) Family of Funds A mutual fund is governed by a Board of Trustees/Directors ("Trustees"), which has oversight responsibility for the management of a fund's business affairs. Trustees establish procedures and oversee and review the performance of the investment manager, the distributor, and others who perform services for the fund. The independent fund trustees, in particular, are advocates for shareholder interests. Each trustee has served in that capacity since he or she was elected to or appointed to the Board of Trustees, and will continue to serve until his or her retirement or the election of a new trustee in his or her place. The following is a list of the Trustees and Officers with certain background and related information. Number of Porfolios in Fund Other Name, Complex Overseen Directorships Address, Position(s) Length of Principal Occupation(s) by Trustee Held by and Birth Date Held with Fund(s) Time Served During Past 5 Years or Officer Trustee or Officer ____________________________________________________________________________________________________________________________________ Interested Trustees ____________________________________________________________________________________________________________________________________ Patrick P. Coyne(1) Chairman, Chairman and Trustee Patrick P. Coyne has served in 83 None 2005 Market Street President, since August 16, 2006 various executive capacities Philadelphia, PA Chief Executive at different times at 19103 Officer, and President and Delaware Investments.(2) Trustee Chief Executive Officer April 14, 1963 since August 1, 2006 ____________________________________________________________________________________________________________________________________ Independent Trustees ____________________________________________________________________________________________________________________________________ Thomas L. Bennett Trustee Since Private Investor - 83 None 2005 Market Street March 2005 (March 2004-Present) Philadelphia, PA 19103 Investment Manager - Morgan Stanley & Co. October 4, 1947 (January 1984-March 2004) ____________________________________________________________________________________________________________________________________ John A. Fry Trustee Since President - 83 Director - 2005 Market Street January 2001 Franklin & Marshall College Community Health Philadelphia, PA (June 2002-Present) Systems 19103 Executive Vice President - Director - May 28, 1960 University of Pennsylvania Allied Barton (April 1995-June 2002) Security Holdings ____________________________________________________________________________________________________________________________________ Anthony D. Knerr Trustee Since Founder and Managing Director - 83 None 2005 Market Street April 1990 Anthony Knerr & Associates Philadelphia, PA (Strategic Consulting) 19103 (1990-Present) December 7, 1938 ____________________________________________________________________________________________________________________________________ Lucinda S. Landreth Trustee Since Chief Investment Officer - 83 None 2005 Market Street March 2005 Assurant, Inc. Philadelphia, PA (Insurance) 19103 (2002-2004) June 24, 1947 ____________________________________________________________________________________________________________________________________ Ann R. Leven Trustee Since Owner - 83 Director and 2005 Market Street September 1989 ARL Associates, Audit Committee Philadelphia, PA Strategic Financial Planning Chairperson - Andy 19103 Consulting Firm Warhol Foundation (1983-Present) November 1, 1940 Director and Audit Committee Member - Systemax, Inc. ____________________________________________________________________________________________________________________________________ 46 <page> Number of Porfolios in Fund Other Name, Complex Overseen Directorships Address, Position(s) Length of Principal Occupation(s) by Trustee Held by and Birth Date Held with Fund(s) Time Served During Past 5 Years or Officer Trustee or Officer ____________________________________________________________________________________________________________________________________ Interested Trustees (continued) ____________________________________________________________________________________________________________________________________ Thomas F. Madison Trustee Since President and Chief 83 Director - 2005 Market Street May 1999 Executive Officer - Banner Health Philadelphia, PA MLM Partners, Inc. 19103 (Small Business Investing Director- and Consulting) CenterPoint Energy February 25, 1936 (January 1993-Present) Director and Audit Committee Member - Digital River, Inc. Director and Audit Committee Member - Rimage Corporation Director - Valmont Industries, Inc. ____________________________________________________________________________________________________________________________________ Janet L. Yeomans Trustee Since Vice President 83 None 2005 Market Street April 1999 (January 2003-Present) Philadelphia, PA and Treasurer 19103 (January 2006-Present) 3M Corporation July 31, 1948 Ms. Yeomans has held various management positions at 3M Corporation since 1983. ____________________________________________________________________________________________________________________________________ J. Richard Zecher Trustee Since Founder - 83 Director and Audit 2005 Market Street March 2005 Investor Analytics Committee Member - Philadelphia, PA (Risk Management) Investor Analytics 19103 (May 1999-Present) Director and Audit July 3, 1940 Founder - Committee Member - Sutton Asset Management Oxigene, Inc. (Hedge Fund) (September 1998-Present) ____________________________________________________________________________________________________________________________________ Officers ____________________________________________________________________________________________________________________________________ Michael P. Bishof Senior Chief Financial Michael P. Bishof has served in 83 None(3) 2005 Market Street Vice President Officer since various executive capacities Philadelphia, PA and February 2005 at different times at 19103 Chief Financial Delaware Investments. Officer August 18, 1962 ____________________________________________________________________________________________________________________________________ David F. Connor Vice President, Vice President since David F. Connor has served as 83 None(3) 2005 Market Street Deputy General September 21, 2000 Vice President and Deputy Philadelphia, PA Counsel, and Secretary and Secretary General Counsel of 19103 since Delaware Investments October 2005 since 2000. December 2, 1963 ____________________________________________________________________________________________________________________________________ David P. O'Connor Senior Vice Senior Vice President, David P. O'Connor has served in 83 None(3) 2005 Market Street President, General Counsel, and various executive and legal Philadelphia, PA General Counsel, Chief Legal Officer capacities at different times 19103 and Chief since at Delaware Investments. Legal Officer October 2005 February 21, 1966 ____________________________________________________________________________________________________________________________________ John J. O'Connor Senior Vice President Treasurer John J. O'Connor has served in 83 None(3) 2005 Market Street and Treasurer since various executive capacities Philadelphia, PA February 2005 at different times at 19103 Delaware Investments. June 16, 1957 ____________________________________________________________________________________________________________________________________ (1) Mr. Coyne is considered to be an "Interested Trustee" because he is an executive officer of the Fund's(s') investment advisor. (2) Delaware Investments is the marketing name for Delaware Management Holdings, Inc. and its subsidiaries, including the Fund's(s') investment advisor, principal underwriter, and its transfer agent. (3) Michael P. Bishof, David F. Connor, David P. O'Connor, and John J. O'Connor serve in similar capacities for the six portfolios of the Optimum Fund Trust, which have the same investment advisor, principal underwriter, and transfer agent as the registrant. John J. O'Connor also serves in a similar capacity for Lincoln Variable Insurance Products Trust, which has the same investment advisor as the registrant. The Statement of Additional Information for the Fund(s) includes additional information about the Trustees and Officers and is available, without charge, upon request by calling 800 523-1918. 47 <page> About the organization This annual report is for the information of Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund shareholders, but it may be used with prospective investors when preceded or accompanied by a current prospectus for Delaware Corporate Bond Fund and Delaware Extended Duration Bond Fund and the Delaware Investments(R) Performance Update for the most recently completed calendar quarter. The prospectus sets forth details about charges, expenses, investment objectives, and operating policies of the funds. You should read the prospectus carefully before you invest. The figures in this report represent past results that are not a guarantee of future results. The return and principal value of an investment in the funds will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. 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 Franklin & Marshall College Lancaster, 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 Owner - ARL Associates, Strategic Financial Planning Consulting Firm Washington, DC 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 Michael P. Bishof Senior Vice President and Chief Financial Officer Delaware Investments Family of Funds Philadelphia, PA David F. Connor Vice President, Deputy General Counsel, and Secretary 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 John J. O'Connor Senior Vice President and Treasurer Delaware Investments Family of Funds Philadelphia, PA Contact information Investment manager Delaware Management Company, a series of Delaware Management Business Trust Philadelphia, PA National distributor Delaware Distributors, L.P. Philadelphia, PA Shareholder servicing, dividend disbursing, and transfer agent Delaware Service Company, Inc. 2005 Market Street Philadelphia, PA 19103-7094 For shareholders 800 523-1918 For securities dealers and financial institutions representatives only 800 362-7500 Web site www.delawareinvestments.com Delaware Investments is the marketing name of Delaware Management Holdings, Inc. and its subsidiaries. Each Fund files its complete schedule of portfolio holdings with the Securities and Exchange Commission for the first and third quarters of each fiscal year on Form N-Q. Each Fund's Forms N-Q, as well as a description of the policies and procedures that each 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; (ii) on each Fund's Web site at http://www.delawareinvestments.com; and (iii) on the Commission's Web site at http://www.sec.gov. Each Fund's Forms N-Q may be reviewed and copied at the Commission's Public Reference Room in Washington, D.C.; information on the operation of the Public Reference Room may be obtained by calling 800 SEC-0330. Information (if any) regarding how each Fund voted proxies relating to portfolio securities during the most recently disclosed 12-month period ended June 30 is available without charge (i) through each Fund's Web site at http://www.delawareinvestments.com; and (ii) on the Commission's Web site at http://www.sec.gov. 48 <page> Get shareholder reports and prospectuses online instead of in the mail. > Visit www.delawareinvestments.com/edelivery <page> Simplify your life. Manage your investments online! Get Account Access, the Delaware Investments(R) secure Web site that allows you to conduct your business online. Gain 24-hour access to your account and one of the highest levels of Web security available. You also get: o Hassle-free investing - Make online purchases and redemptions at any time. o Simplified tax processing - Automatically retrieve your Delaware Investments accounts' 1099 information and import it directly into your 1040 tax return. Available only with Turbo Tax (R) Online (SM) and Desktop software - www.turbotax.com. o Less mail clutter - Get instant access to your fund materials online with Delaware eDelivery. Register for Account Access today! Please visit us at www.delawareinvestments.com, select Individual Investors, and click Account Access. Please call our Shareholder Service Center at 800 523-1918 Monday through Friday from 8:00 a.m. to 7:00 p.m., Eastern Time, for assistance with any questions. [DELAWARE INVESTMENTS LOGO] 831 Printed in the USA AR-460 [7/06] CGI 9/06 MF-06-08-023 PO11210 Annual Report Delaware Delchester Fund July 31, 2006 Fixed income mutual fund [DELAWARE INVESTMENTS LOGO] [LOGO] POWERED BY RESEARCH(R) Table of contents > Portfolio management review .................................................1 > Performance summary .........................................................4 > Disclosure of Fund expenses .................................................6 > Sector allocation and credit rating breakdown ...............................7 > Statement of net assets .....................................................8 > Statement of assets and liabilities ........................................12 > Statement of operations ....................................................13 > Statements of changes in net assets ........................................14 > Financial highlights .......................................................15 > Notes to financial statements ..............................................19 > Report of independent registered public accounting firm ....................23 > Other Fund information .....................................................24 > Board of trustees/directors and officers addendum ..........................26 > About the organization .....................................................28 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. [C] 2006 Delaware Distributors, L.P. Portfolio management review Delaware Delchester Fund July 31, 2006 Timothy L. Rabe Senior Portfolio Manager The manager of Delaware Delchester Fund provided the answers to the questions below as a review of the Fund's activities over the fiscal year ending July 31, 2006. Please see page 5 to learn more about the portfolio manager. What was the investment climate for high yield fixed income investments during the fiscal year ended July 31, 2006? Overall, the U.S. economy provided a relatively favorable backdrop for the high yield fixed income market. The economy recovered nicely from Hurricanes Rita and Katrina early in our fiscal year, and then grew at a robust pace while interest rates, although rising, remained relatively low. This setting helped foster an environment, that kept default rates near their all-time lows and contributed to positive total returns for high yield bonds. In particular, high yield bonds with CCC credit ratings performed well based on the returns of Lehman Brothers credit indices (ratings below BBB are generally considered high yield, higher risk bonds that are deemed below investment grade). This performance in CCC-rated bonds was primarily the result of a rebound among automotive industry debt. After experiencing credit downgrades in the last calendar quarter of 2005, Ford and General Motors securities performed consistently well throughout 2006, which boosted high yield debt performance throughout the auto industry. Furthermore, the supply of high yield debt remained healthy, with several large companies, including Hertz, Neiman Marcus, and HRC bringing issues to market (source: AMG Data Services). How did the Fund perform for the fiscal year? Delaware Delchester Fund achieved positive gains for the fiscal year ended July 31, 2006 with all but a few sectors making contributions. Class A shares returned 6.42% at net asset value and 1.53% at the maximum offer price (both figures represent all distributions reinvested). For complete, annualized performance for Delaware Delchester Fund, please see the table on page 4. By comparison, the Bear Stearns High Yield Index, which serves as the Fund's benchmark, gained 3.80% during the same period. The Fund's peers in the Lipper High Current Yield Funds category also averaged a gain of 3.80% for the period. What broad strategies influenced Fund performance? We continued to focus on security selection as the primary driver of the Fund's performance. Although the economic climate and other big-picture factors were influential in the high yield market, company-specific characteristics and influences generally played larger roles in overall performance during the fiscal year. As such, we generally avoided making significant sector "bets," preferring instead to focus on our in-depth research efforts to uncover attractively valued securities throughout the high yield universe. We believe these efforts helped the Fund outperform the benchmark at net asset value for the one-year period ended July 31, 2006. There were no "themes" or significant sector-performance advantages that generated specific positive results. Instead, the Fund's performance was realized from a wide array of individual fixed income securities, selected for their overall value and yield advantages. From a quality standpoint, Delaware Delchester Fund held a lesser weighting than the Bear Stearns High Yield Index in BB-rated bonds because we preferred to hold more B-rated securities. By focusing on bonds with B credit-quality ratings, we were able to capture extra yield, compared to the benchmark, as well as good value. This strategy helped the Fund's total return at net asset value compared to that of its benchmark index. Which holdings were significant performers within the Fund over the fiscal year? There were notable performers on both the positive and negative side of performance. The Fund benefited from a number of mergers and acquisitions, and initial public offerings. In terms of individual bonds, holdings of Mirant Americas Generation, an Atlanta-based power company, provided positive return during the year. (continues) 1 Portfolio management review Delaware Delchester Fund July 31, 2006 Mirant is a holding that we first purchased before the corporation filed for bankruptcy in July 2003. We held onto our position throughout its bankruptcy proceedings and when the company reorganized and emerged from bankruptcy in January 2006, the bonds posted strong performance. We also held a position in paper company Georgia-Pacific, which declined slightly during the first eight months of the fiscal year and then rallied after the company agreed to a buyout by Koch Industries. Horizon Lines, a shipping company represented in the Fund, reported strong financials and eventually announced an initial public offering, which caused the company's bonds to rally. Comparatively, the Fund realized disappointing results from Uno Restaurant. The company's bonds have underperformed since they came to market, primarily because of the company's inclination for promoting shareholder value through dividend payments. In addition, our position in Anchor Glass (later sold by the Fund) detracted from the Fund's overall performance after the company filed for bankruptcy because it was unable to meet its creditors' demands. From an industry standpoint, our positions in Canadian paper companies suffered losses. The strength of the Canadian dollar compared to other currencies generally made Canadian paper manufacturers less attractive to global investors. At fiscal year end, how was the portfolio positioned? We continue to hold a broadly diversified portfolio of securities that we believe offer value and yield advantages. We do not favor any single industry or sector, preferring to generate return potential and manage risk on a security-by-security basis. An example of this is our approach to the auto industry, which has heavily influenced performance of the high yield market, but where our security-by-security analysis has led us to be cautious. Throughout the one-year period, auto industry bonds, particularly Ford and General Motors, were significant market movers and represented approximately 15% of the Bear Stearns High Yield Index. We maintain a significantly lighter weighting than the index when it comes to auto bonds. This approach is also reflective of our belief that a single industry comprised of only two available bond issues should not represent such a large component of the portfolio. In terms of individual securities, we continue to believe that there is compelling value among the larger leveraged buyouts coming to market. We believe the size, scale, and complexity of these new issues make them more attractive from a historical perspective. Of course, we continue to monitor the economic backdrop because a significant slowdown in growth could hurt the high yield market from a macroeconomic perspective. In addition, we continue to closely watch the supply-and-demand forces at work in the high yield market. 2 Performance summary Delaware Delchester Fund The performance data quoted represent past performance; past performance does not guarantee future results. Investment return and principal value will fluctuate so your shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance data quoted. Adverse conditions may affect the issuer's ability to pay interest and principal on securities held by the Fund. A rise or fall in the interest rates can have a significant impact on bond prices and the NAV (net asset value) of the Fund. Funds that invest in bonds can lose their value as interest rates rise, and an investor can lose principal. Please obtain the performance data for the most recent month end by calling 800 523-1918 or by visiting www. delawareinvestments.com/performance. You should consider the investment objectives, risks, charges, and expenses of the investment carefully before investing. Delaware Delchester Fund prospectus contains this and other important information about the investment company. Please request a prospectus through your financial advisor or by calling 800 523-1918 or visiting our Web site. Read it carefully before you invest or send money. Performance includes reinvestment of all distributions. Fund Performance Average Annual Total Returns Through July 31, 2006 1 Year 5 Years 10 Years Lifetime ________________________________________________________________________________ Class A (Est. 8/20/70) Excluding Sales Charge 6.42% 10.39% 3.30% 7.81% Including Sales Charge 1.53% 9.35% 2.83% 7.67% ________________________________________________________________________________ Class B (Est. 5/2/94) Excluding Sales Charge 5.34% 9.59% 2.72% 3.39% Including Sales Charge 1.41% 9.38% 2.72% 3.39% ________________________________________________________________________________ Class C (Est. 11/29/95) Excluding Sales Charge 5.65% 9.64% 2.57% 2.89% Including Sales Charge 4.67% 9.64% 2.57% 2.89% ________________________________________________________________________________ Delaware Delchester Fund invests primarily in high yield bonds (commonly known as "junk bonds"), which involve greater risk than higher-quality investment-grade bonds. Returns reflect the reinvestment of distributions and any applicable sales charges as noted below. Performance for Class B and C shares, excluding sales charges, assumes either that contingent deferred sales charges did not apply or that the investment was not redeemed. The Fund offers Class A, B, C, R, and Institutional Class shares. Class A shares are sold with a front-end sales charge of up to 4.50% and have an annual distribution and service fee of up to 0.30%. Class B shares are sold with a contingent deferred sales charge that declines from 4% to zero depending upon the period of time the shares are held. Class B shares will automatically convert to Class A shares on a quarterly basis approximately eight years after purchase. They are also subject to an annual distribution and service fee of 1%. Ten-year and lifetime performance figures for Class B shares reflect conversion to Class A shares after eight years. Class C shares are sold with a contingent deferred sales charge of 1% if redeemed during the first 12 months. They are also subject to an annual distribution and service fee of 1%. Class R shares are available only for certain retirement plan products. They are sold without a sales charge and have an annual distribution and service fee of up to 0.60%. The distributor has contracted to limit distribution and service fee to 0.50% through November 30, 2006. No Class R shares were made available during the periods shown. The average annual total returns for the 1-year, 5-year, 10-year, and lifetime (since August 20, 1970) periods ended July 31, 2006 for Delaware Delchester Fund's Institutional Class were +6.72%, +10.70%, +3.58%, and +7.95%, respectively. Institutional Class shares, were first made available on June 1, 1992 and are available without sales or asset-based distribution charges only to certain eligible institutional accounts. Institutional Class performance prior to June 1, 1992 for Delaware Delchester Fund is based on Class A performance and was adjusted to eliminate the sales charges, but not the asset-based distribution charge of Class A shares. The performance table does not reflect the deduction of taxes the shareholder would pay on Fund distributions or redemptions of Fund shares. An expense limitation was in effect for all classes of Delaware Delchester Fund during some periods shown. Performance would have been lower had the expense limitation not been in effect. 4 Fund basics As of July 31, 2006 ________________________________________________________________________________ Fund objective ________________________________________________________________________________ The Fund seeks total return and, as a secondary objective, high current income. ________________________________________________________________________________ Total Fund net assets ________________________________________________________________________________ $283 million ________________________________________________________________________________ Number of holdings ________________________________________________________________________________ 176 (excludes security lending collateral holdings) ________________________________________________________________________________ Fund start date ________________________________________________________________________________ August 20, 1970 ________________________________________________________________________________ Your Fund manager ________________________________________________________________________________ Timothy L. Rabe, CFA, joined Delaware Investments in 2000. He is head of the high yield trading department responsible for investing strategy. Prior to joining Delaware Investments, Timothy L. Rabe was a high yield portfolio manager for Conseco Capital Management for five years. Prior to that, he worked as a tax analyst for the Northern Trust Company. He received a bachelor's degree in finance from the University of Illinois. ________________________________________________________________________________ Nasdaq symbols CUSIPs ________________________________________________________________________________ Class A DETWX 245908207 Class B DHYBX 245908405 Class C DELCX 245908504 Institutional Class DETIX 245908306 [PERFORMANCE OF A $10,000 INVESTMENT LINE CHART] Chart assumes $10,000 invested on July 31, 1996 and includes the effect of a 4.50% front-end sales charge and the reinvestment of all distributions. Performance of other Fund classes will vary due to different charges and expenses. The Bear Stearns High Yield Bond Index is an unmanaged index that generally measures the performance of domestic high yield bonds. An index is unmanaged and does not incur the costs of operating a mutual fund, such as the costs of buying, selling, and holding securities. You cannot invest directly in an index. The performance graph does not reflect the deduction of taxes the shareholder would pay on Fund distributions or redemptions of Fund shares. An expense limitation was in effect for Class A shares of Delaware Delchester Fund during some periods shown. Performance would have been lower had the expense limitation not been in effect. Past performance is not a guarantee of future results. 5 Disclosure of Fund expenses For the period February 1, 2006 to July 31, 2006 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 period February 1, 2006 to July 31, 2006. 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 actual expenses shown in the table reflect fee waivers in effect. The expenses shown in the table assume reinvestment of all dividends and distributions. Delaware Delchester Fund Expense Analysis of an Investment of $1,000 Expenses Beginning Ending Paid During Account Account Annualized Period Value Value Expense 2/1/06 to 2/1/06 7/31/06 Ratios 7/31/06* ________________________________________________________________________________ Actual Fund Return Class A $1,000.00 $1,039.70 1.20% $6.07 Class B 1,000.00 1,036.00 1.91% 9.64 Class C 1,000.00 1,035.90 1.91% 9.64 Institutional Class 1,000.00 1,041.10 0.91% 4.61 ________________________________________________________________________________ Hypothetical 5% Return (5% return before expenses) Class A $1,000.00 $1,018.84 1.20% $6.01 Class B 1,000.00 1,015.32 1.91% 9.54 Class C 1,000.00 1,015.32 1.91% 9.54 Institutional Class 1,000.00 1,020.28 0.91% 4.56 ________________________________________________________________________________ *"Expenses Paid During Period" are equal to the Fund's annualized expense ratio, multiplied by the average account value over the period, multiplied by 181/365 (to reflect the one-half year period). 6 Sector allocation and credit rating breakdown Delaware Delchester Fund As of July 31, 2006 Sector designations may be different than the sector designations presented in other Fund materials. Percentage Sector of Net Assets ________________________________________________________________________________ Collateralized Bond Obligations 0.04% ________________________________________________________________________________ Commercial Mortgage-Backed Securities 0.72% ________________________________________________________________________________ Commercial Paper 0.34% ________________________________________________________________________________ Convertible Bonds 0.32% ________________________________________________________________________________ Corporate Bonds 88.47% Banking 0.67% Basic Industry 10.68% Brokerage 1.63% Capital Goods 5.68% Consumer Cyclical 8.08% Consumer Non-Cyclical 9.53% Energy 6.82% Finance & Investments 0.48% Media 9.53% Real Estate 1.37% Services Cyclical 11.72% Services Non-Cyclical 6.13% Technology & Electronics 2.27% Telecommunications 10.05% Utilities 3.83% ________________________________________________________________________________ Emerging Markets Bonds 1.49% ________________________________________________________________________________ Common Stock 1.46% ________________________________________________________________________________ Warrants 0.00% ________________________________________________________________________________ Securities Lending Collateral 19.16% Fixed Rate Notes 3.26% Variable Rate Notes 15.90% ________________________________________________________________________________ Total Market Value of Securities 112.00% ________________________________________________________________________________ Obligation to Return Securities Lending Collateral (19.16%) ________________________________________________________________________________ Receivables and Other Assets Net of Liabilities 7.16% ________________________________________________________________________________ Total Net Assets 100.00% ________________________________________________________________________________ Credit Rating Breakdown (as a % of fixed income investments) ________________________________________________________________________________ AAA 7.16% AA 0.25% A 0.09% BBB 1.38% BB 18.81% B 53.61% CCC 13.89% C 0.02% D 0.64% NR 4.15% ________________________________________________________________________________ Total 100.00% ________________________________________________________________________________ 7 Statement of net assets Delaware Delchester Fund July 31, 2006 Principal Market Amount (U.S.$) Value (U.S.$) ________________________________________________________________________________ Collateralized Bond Obligations - 0.04% ________________________________________________________________________________ #=@~ Merrill Lynch CBO VII Series 1997-C3 144A 5.824% 3/23/08 $ 576,246 $ 46,646 #=@ South Street CBO Series 1999-1A A1 144A 7.16% 7/1/11 52,272 52,533 __________ Total Collateralized Bond Obligations (cost $377,024) 99,179 __________ ________________________________________________________________________________ Commercial Mortgage-Backed Securities - 0.72% ________________________________________________________________________________ # First Union National Bank Commercial Mortgage Series 2001-C2 L 144A 6.46% 1/12/43 2,025,000 2,022,967 __________ Total Commercial Mortgage-Backed Securities (cost $2,055,296) 2,022,967 __________ ________________________________________________________________________________ Commercial Paper - 0.34% ________________________________________________________________________________ [ Cox Enterprises 5.545% 8/1/06 960,000 960,000 __________ Total Commercial Paper (cost $960,000) 960,000 __________ ________________________________________________________________________________ Convertible Bonds - 0.32% ________________________________________________________________________________ # Charter Communications 144A 5.875% 11/16/09, exercise price $2.42, expiration date 11/16/09 1,080,000 907,200 __________ Total Convertible Bonds (cost $1,054,650) 907,200 __________ ________________________________________________________________________________ Corporate Bonds - 88.47% ________________________________________________________________________________ Banking - 0.67% *# iPayment 144A 9.75% 5/15/14 1,170,000 1,175,850 Western Financial Bank 9.625% 5/15/12 645,000 712,142 __________ 1,887,992 __________ Basic Industry - 10.68% Abitibi-Consolidated 6.95% 12/15/06 125,000 126,250 * 7.875% 8/1/09 1,180,000 1,144,600 * AK Steel 7.875% 2/15/09 1,970,000 1,970,000 Bowater 9.50% 10/15/12 3,375,000 3,391,875 Donohue Forest Products 7.625% 5/15/07 1,000,000 1,007,500 Georgia-Pacific 9.50% 12/1/11 1,825,000 1,925,375 * Gold Kist 10.25% 3/15/14 1,261,000 1,330,355 *# Nell AF Sarl 144A 8.375% 8/15/15 1,825,000 1,781,656 NewPage 10.00% 5/1/12 1,555,000 1,621,088 Norske Skog Canada 8.625% 6/15/11 2,225,000 2,180,500 # Port Townsend Paper 144A 12.00% 4/15/11 2,735,000 2,338,425 Potlatch 13.00% 12/1/09 2,100,000 2,472,546 Rhodia 8.875% 6/1/11 1,320,000 1,349,700 *++ Solutia 6.72% 10/15/37 2,335,000 2,136,525 Tembec Industries 8.625% 6/30/09 5,310,000 2,880,675 # Verso Paper 144A 9.125% 8/1/14 1,125,000 1,130,625 Witco 6.875% 2/1/26 1,520,000 1,375,600 __________ 30,163,295 __________ Brokerage - 1.63% E Trade Financial 8.00% 6/15/11 1,250,000 1,290,625 LaBranche & Co. 9.50% 5/15/09 1,310,000 1,355,850 11.00% 5/15/12 1,825,000 1,952,750 __________ 4,599,225 __________ Capital Goods - 5.68% Armor Holdings 8.25% 8/15/13 2,050,000 2,152,499 # Compression Polymer 144A 10.50% 7/1/13 1,285,000 1,323,550 * Graham Packaging 9.875% 10/15/14 1,375,000 1,344,063 Interface 10.375% 2/1/10 1,470,000 1,613,325 Interline Brands 8.125% 6/15/14 325,000 329,063 Intertape Polymer 8.50% 8/1/14 1,850,000 1,720,500 *{ Mueller Holdings 14.75% 4/15/14 2,151,000 1,839,105 *{ NTK Holdings 10.75% 3/1/14 1,715,000 1,209,075 # RBS Global & Rexnord 144A 9.50% 8/1/14 1,370,000 1,376,850 * Solo Cup 8.50% 2/15/14 1,500,000 1,305,000 * Trimas 9.875% 6/15/12 1,970,000 1,827,175 __________ 16,040,205 __________ Consumer Cyclical - 8.08% * Accuride 8.50% 2/1/15 1,540,000 1,439,900 # Baker & Taylor 144A 11.50% 7/1/13 1,125,000 1,130,625 Boyd Gaming 8.75% 4/15/12 1,825,000 1,916,250 Ford Motor Credit 7.375% 10/28/09 1,735,000 1,637,725 * General Motors 8.375% 7/15/33 945,000 779,625 General Motors Acceptance Corporation 6.875% 9/15/11 2,225,000 2,156,730 * 8.00% 11/1/31 1,570,000 1,543,812 Landry's Restaurant 7.50% 12/15/14 950,000 885,875 * Metaldyne 10.00% 11/1/13 2,105,000 2,026,063 * Neiman Marcus 9.00% 10/15/15 1,000,000 1,058,750 *# NPC International 144A 9.50% 5/1/14 1,985,000 1,915,525 * O'Charleys 9.00% 11/1/13 2,050,000 2,101,250 *# Uno Restaurant 144A 10.00% 2/15/11 1,075,000 835,813 Visteon * 7.00% 3/10/14 465,000 381,300 * 8.25% 8/1/10 1,680,000 1,554,000 Warnaco 8.875% 6/15/13 1,435,000 1,472,669 __________ 22,835,912 __________ Consumer Non-Cyclical - 9.53% # Angiotech Pharmaceuticals 144A 7.75% 4/1/14 1,450,000 1,410,125 Biovail 7.875% 4/1/10 3,635,000 3,707,699 Constellation Brands 8.125% 1/15/12 1,225,000 1,267,875 * Cott Beverages 8.00% 12/15/11 1,330,000 1,349,950 * Dole Food 8.875% 3/15/11 1,550,000 1,457,000 # Healthsouth 144A 10.75% 6/15/16 1,875,000 1,800,000 Ingles Markets 8.875% 12/1/11 1,700,000 1,785,000 8 Principal Market Amount (U.S.$) Value (U.S.$) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Consumer Non-Cyclical (continued) # Le-Natures 144A 10.00% 6/15/13 $1,500,000 $1,597,500 * Marsh Supermarkets 8.875% 8/1/07 625,000 623,438 National Beef Packing 10.50% 8/1/11 1,975,000 2,058,938 *# Penhall International 144A 12.00% 8/1/14 1,000,000 1,037,500 Pilgrim's Pride 9.625% 9/15/11 1,575,000 1,657,688 Pinnacle Foods 8.25% 12/1/13 670,000 659,950 * Playtex Products 9.375% 6/1/11 1,480,000 1,552,150 # Reynolds American 144A 7.875% 5/15/09 850,000 886,196 True Temper Sports 8.375% 9/15/11 1,190,000 1,085,875 * Warner Chilcott 8.75% 2/1/15 2,995,000 2,987,512 __________ 26,924,396 __________ Energy - 6.82% # Basic Energy Service 144A 7.125% 4/15/16 555,000 520,313 Bluewater Finance 10.25% 2/15/12 1,355,000 1,385,488 # Brigham Exploration 144A 9.625% 5/1/14 595,000 587,563 Compton Petroleum Finance 7.625% 12/1/13 805,000 778,838 Copano Energy 8.125% 3/1/16 605,000 611,050 El Paso Natural Gas 7.625% 8/1/10 1,350,000 1,380,375 # El Paso Performance Linked Trust 144A 7.75% 7/15/11 995,000 1,006,194 El Paso Production Holding 7.75% 6/1/13 1,825,000 1,863,780 # Hilcorp Energy 144A 9.00% 6/1/16 1,475,000 1,533,999 Inergy Finance 6.875% 12/15/14 1,395,000 1,321,763 * 8.25% 3/1/16 490,000 502,250 # Mariner Energy 144A 7.50% 4/15/13 540,000 523,800 # Markwest Energy 144A 8.50% 7/15/16 325,000 329,875 # PetroHawk Energy 144A 9.125% 7/15/13 1,950,000 2,003,624 ~ Secunda International 13.507% 9/1/12 1,395,000 1,466,494 Tennessee Gas Pipeline 8.375% 6/15/32 1,265,000 1,384,443 # VeraSun Energy 144A 9.875% 12/15/12 740,000 791,800 Whiting Petroleum 7.25% 5/1/13 1,270,000 1,266,825 __________ 19,258,474 __________ Finance & Investments - 0.48% FINOVA Group 7.50% 11/15/09 4,607,850 1,359,316 __________ 1,359,316 __________ Media - 9.53% } Adelphia Communications 8.125% 12/15/06 2,600,000 1,527,500 # Affinion Group 144A 11.50% 10/15/15 600,000 604,500 *++ Century Communications 9.50% 9/1/06 2,800,000 3,045,000 Charter Communications Holdings 11.125% 1/15/11 1,225,000 888,125 13.50% 1/15/11 4,620,000 3,534,300 ~# Cleveland Unlimited 144A 13.579% 12/15/10 820,000 877,400 CSC Holdings 8.125% 7/15/09 600,000 617,250 8.125% 8/15/09 2,100,000 2,160,375 Insight Midwest 10.50% 11/1/10 4,110,000 4,294,949 * Lodgenet Entertainment 9.50% 6/15/13 2,450,000 2,621,500 * Mediacom Capital 9.50% 1/15/13 2,045,000 2,080,788 RH Donnelley 8.875% 1/15/16 1,350,000 1,351,688 Sheridan Group 10.25% 8/15/11 1,240,000 1,258,600 * Vertis 10.875% 6/15/09 510,000 508,088 * Warner Music Group 7.375% 4/15/14 1,615,000 1,566,550 __________ 26,936,613 __________ Real Estate - 1.37% American Real Estate Partners 8.125% 6/1/12 1,961,000 2,000,220 BF Saul REIT 7.50% 3/1/14 1,820,000 1,874,600 __________ 3,874,820 __________ Services Cyclical - 11.72% Adesa 7.625% 6/15/12 1,600,000 1,580,000 American Airlines 7.377% 5/23/19 744,679 670,212 Corrections Corporation of America 7.50% 5/1/11 2,500,000 2,537,499 FTI Consulting 7.625% 6/15/13 1,460,000 1,481,900 *# Galaxy Entertainment Finance 144A 9.875% 12/15/12 3,150,000 3,307,499 Gaylord Entertainment 8.00% 11/15/13 1,100,000 1,120,625 { H-Lines Finance Holdings 11.00% 4/1/13 2,773,000 2,419,443 # Hertz 144A 8.875% 1/1/14 1,080,000 1,131,300 * 10.50% 1/1/16 480,000 524,400 Horizon Lines 9.00% 11/1/12 1,065,000 1,088,963 Kansas City Southern Railway 9.50% 10/1/08 1,610,000 1,694,525 # Knowledge Learning 144A 7.75% 2/1/15 1,575,000 1,456,875 Mandalay Resort Group 9.50% 8/1/08 1,480,000 1,568,800 OMI 7.625% 12/1/13 2,345,000 2,368,450 # Pokagon Gaming Authority 144A 10.375% 6/15/14 1,475,000 1,548,750 Royal Caribbean Cruises 7.25% 3/15/18 565,000 553,142 Seabulk International 9.50% 8/15/13 1,605,000 1,781,550 Stena 9.625% 12/1/12 1,660,000 1,801,100 { Town Sports International 11.00% 2/1/14 1,450,000 1,152,750 Wheeling Island Gaming 10.125% 12/15/09 3,200,000 3,319,999 __________ 33,107,782 __________ (continues) 9 Statement of net assets Delaware Delchester Fund Principal Market Amount (U.S.$) Value (U.S.$) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Services Non-Cyclical - 6.13% Aleris International 9.00% 11/15/14 $1,405,000 $ 1,587,650 Allied Waste North America 9.25% 9/1/12 1,500,000 1,601,250 Brickman Group 11.75% 12/15/09 710,000 766,800 Casella Waste Systems 9.75% 2/1/13 2,800,000 2,954,000 # CRC Health 144A 10.75% 2/1/16 2,087,000 2,128,740 * Geo Subordinate 11.00% 5/15/12 2,135,000 2,156,350 US Oncology 10.75% 8/15/14 1,805,000 1,967,450 *{ Vanguard Health 11.25% 10/1/15 3,635,000 2,589,938 # WCA Waste 144A 9.25% 6/15/14 1,525,000 1,559,313 __________ 17,311,491 __________ Technology & Electronics - 2.27% * MagnaChip Semiconductor 8.00% 12/15/14 3,850,000 2,569,875 * STATS ChipPAC 7.50% 7/19/10 1,600,000 1,564,000 Sungard Data System 10.25% 8/15/15 1,480,000 1,507,750 # UGS Capital II PIK 144A 10.38% 6/1/11 775,000 771,125 __________ 6,412,750 __________ Telecommunications - 10.05% ++ Allegiance Telecommunication 11.75% 2/15/08 2,045,000 910,025 American Tower 7.125% 10/15/12 1,630,000 1,646,300 * Cincinnati Bell 8.375% 1/15/14 1,490,000 1,467,650 *# Digicel Limited 144A 9.25% 9/1/12 1,600,000 1,676,000 *# Hughes Network Systems 144A 9.50% 4/15/14 1,225,000 1,225,000 { Inmarsat Finance 10.375% 11/15/12 3,600,000 3,095,999 # Intelsat Bermuda 144A 11.25% 6/15/16 1,850,000 1,877,750 * Intelsat Subsidiary Holding 8.625% 1/15/15 975,000 970,125 * iPCS 11.50% 5/1/12 1,445,000 1,625,625 ~ IWO Holdings 9.257% 1/15/12 235,000 243,813 # Mobile Service Group 144A 9.75% 8/1/14 1,135,000 1,154,863 Rural Cellular * 9.875% 2/1/10 1,410,000 1,466,400 *~ 10.899% 11/1/12 1,025,000 1,066,000 # Telcordia Technologies 144A 10.00% 3/15/13 2,475,000 1,992,375 Triton Communications 9.375% 2/1/11 1,645,000 1,213,188 ~ US LEC 13.62% 10/1/09 1,300,000 1,387,750 # Vimpel Communication 144A 8.25% 5/23/16 1,300,000 1,296,750 *# Wind Acquisition 144A 10.75% 12/1/15 2,490,000 2,695,425 # Windstream 144A 8.625% 8/1/16 1,325,000 1,384,625 __________ 28,395,663 __________ Utilities - 3.83% ++# Calpine 144A 9.90% 7/15/07 1,827,925 1,814,216 Elwood Energy 8.159% 7/5/26 1,100,475 1,204,344 Midwest Generation 8.30% 7/2/09 1,909,127 1,932,991 8.75% 5/1/34 1,250,000 1,335,938 * Mirant Americas Generation 8.30% 5/1/11 2,870,000 2,812,599 Orion Power Holdings 12.00% 5/1/10 1,490,000 1,709,775 =++# USGen New England 144A 7.459% 1/2/15 38,286 25,840 ___________ 10,835,703 ___________ Total Corporate Bonds (cost $253,780,624) 249,943,637 ___________ _______________________________________________________________________________ Emerging Markets Bonds - 1.49% _______________________________________________________________________________ *# C&M Finance 144A 8.10% 2/1/16 825,000 783,197 * Republic of El Salvador 7.65% 6/15/35 1,500,000 1,521,000 Venezuela Government 6.00% 12/9/20 2,110,000 1,907,440 ___________ Total Emerging Markets Bonds (cost $4,252,138) 4,211,637 ___________ Number of Shares _______________________________________________________________________________ Common Stock - 1.46% _______________________________________________________________________________ =@+II Avado Brands 9,305 8,747 * B&G Foods 4,000 66,800 *+ Foster Wheeler 42,375 1,616,173 + Mirant 56,423 1,499,159 *+ Petrojarl ADR 15,331 97,445 *+ Petroleum Geo-Services ADR 15,331 844,278 ___________ Total Common Stock (cost $2,865,039) 4,132,602 ___________ _______________________________________________________________________________ Warrants - 0.00% _______________________________________________________________________________ +# Solutia 144A, exercise price $7.59, expiration date 7/15/09 4,410 0 ___________ Total Warrants (cost $367,920) 0 ___________ Total Market Value of Securities Before Securities Lending Collateral - 92.84% ___________ (cost $265,712,691) 262,277,222 ___________ Principal Amount (U.S.$) _______________________________________________________________________________ Securities Lending Collateral** - 19.16% _______________________________________________________________________________ Short-Term Investments - 19.16% Fixed Rate Notes - 3.26% Citigroup Global Markets 5.32% 8/1/06 $9,227,483 9,227,483 ___________ 9,227,483 ___________ ~ Variable Rate Notes - 15.90% American Honda Finance 5.32% 2/21/07 1,547,454 1,547,454 ANZ National 5.32% 8/31/07 343,879 343,879 Australia New Zealand 5.40% 8/31/07 1,719,393 1,719,393 Bank of America 5.32% 2/23/07 2,235,211 2,235,211 10 Principal Market Amount (U.S.$) Value (U.S.$) ________________________________________________________________________________ Securities Lending Collateral (continued) ________________________________________________________________________________ Short-Term Investments (continued) Variable Rate Notes (continued) Bank of New York 5.34% 8/31/07 $1,375,514 $ 1,375,514 Barclays New York 5.31% 5/18/07 2,235,211 2,235,211 Bayerische Landesbank 5.45% 8/25/06 1,719,393 1,719,393 Bear Stearns 5.40% 1/31/07 2,063,272 2,063,272 BNP Paribas 5.14% 8/31/07 1,719,393 1,719,393 Canadian Imperial Bank 5.32% 11/22/06 1,719,393 1,719,393 5.38% 8/31/07 859,696 859,696 CDC Financial Products 5.41% 8/31/06 2,235,211 2,235,211 Citigroup Global Markets 5.38% 8/7/06 2,235,211 2,235,211 Commonwealth Bank 5.37% 8/31/07 1,719,393 1,719,393 Goldman Sachs 5.45% 7/31/07 2,235,211 2,235,211 Manufacturers & Traders 5.38% 9/26/06 1,719,386 1,719,321 Marshall & Ilsley Bank 5.35% 8/31/07 1,891,332 1,891,332 Merrill Lynch Mortgage Capital 5.41% 8/3/06 1,547,454 1,547,454 National Australia Bank 5.31% 3/7/07 2,132,047 2,132,047 National City Bank 5.32% 3/2/07 2,063,398 2,063,848 National Rural Utilities 5.34% 8/31/07 2,716,641 2,716,641 Nordea Bank New York 5.31% 5/16/07 859,687 859,654 Nordea Bank Norge 5.33% 8/31/07 1,719,393 1,719,393 Royal Bank of Scotland 5.38% 8/31/07 1,719,393 1,719,393 Societe Generale 5.32% 8/31/07 859,697 859,697 Wells Fargo 5.38% 8/31/07 1,719,393 1,719,393 _____________ 44,911,008 _____________ Total Securities Lending Collateral (cost $54,138,491) 54,138,491 _____________ Total Market Value of Securities - 112.00% (cost $319,851,182) 316,415,713 ! Obligation to Return Securities Lending Collateral** - (19.16%) (54,138,491) Receivables and Other Assets Net of Liabilities - 7.16% 20,240,167 _____________ Net Assets Applicable to 86,432,668 Shares Outstanding - 100.00% $ 282,517,389 _____________ Net Asset Value - Delaware Delchester Fund Class A ($225,352,496 / 68,967,864 Shares) $3.27 _____ Net Asset Value - Delaware Delchester Fund Class B ($28,313,681 / 8,647,765 Shares) $3.27 _____ Net Asset Value - Delaware Delchester Fund Class C ($12,706,543 / 3,876,695 Shares) $3.28 _____ Net Asset Value - Delaware Delchester Fund Institutional Class ($16,144,669 / 4,940,344 Shares) $3.27 _____ Components of Net Assets at July 31, 2006: Shares of beneficial interest (unlimited authorization - no par) $924,798,722 Accumulated net realized loss on investments (638,845,864) Net unrealized depreciation of investments (3,435,469) _____________ Total net assets $282,517,389 _____________ # Security exempt from registration under Rule 144A of the Securities Act of 1933, as amended. At July 31, 2006, the aggregate amount of Rule 144A securities equaled $59,902,697, which represented 21.20% of the Fund's net assets. See Note 8 in "Notes to Financial Statements." II Restricted Security. Investment in a security not registered under the Securities Act of 1933, as amended. This security has certain restrictions on resale which may limit its liquidity. At July 31, 2006, the aggregate amount of the restricted security equaled $8,747 or 0.00% of the Fund's net assets. See Note 8 in "Notes to Financial Statements." { Step coupon bond. Indicates security that has a zero coupon that remains in effect until a predetermined date at which time the stated interest rate becomes effective. * Fully or partially on loan. ** See note 7 in "Notes to Financial Statements." ! Includes $52,991,734 of securities loaned. ~ Variable rate security. The interest rate shown is the rate as of July 31, 2006. + Non-income producing security for the year ended July 31, 2006. ++ Non-income producing security. Security is currently in default. } Security is currently in default. The issue has missed the maturity date. Bankruptcy proceedings are in process to determine distribution of assets. The date listed is the estimate of when proceedings will be finalized. @ Illiquid security. At July 31, 2006, the aggregate amount of illiquid securities equaled $107,926, which represented 0.04% of the Fund's net assets. See Note 8 in "Notes to Financial Statements." = Security is being fair valued in accordance with the Fund's fair valuation policy. At July 31, 2006, the aggregate amount of fair valued securities equaled $133,766, which represented 0.05% of the Fund's net assets. See Note 1 in "Notes to Financial Statements." [ The interest rate shown is the effective yield as of the time of purchase. Summary of Abbreviations: ADR - American Depositary Receipts CBO - Collateralized Bond Obligation PIK - Pay-in-Kind REIT - Real Estate Investment Trust Net Asset Value and Offering Price per Share - Delaware Delchester Fund Net asset value Class A (A) $3.27 Sales charge (4.50% of offering price) (B) 0.15 _____ Offering price $3.42 _____ (A) Net asset value per share, as illustrated, is the amount which would be paid upon redemption or repurchase of shares. (B) See the current prospectus for purchases of $100,000 or more. See accompanying notes 11 Statement of assets and liabilities Delaware Delchester Fund July 31, 2006 Assets: Investments at market (including $52,991,734 of securities loaned) $262,277,222 Short-term investments held as collateral for loaned securities 54,138,491 Subscriptions receivable 17,279,507 Interest receivable 5,325,223 Receivable for securities sold 4,256,256 Other assets 1,822 ____________ Total assets 343,278,521 ____________ Liabilities: Obligations to return securities lending collateral 54,138,491 Payable for securities purchased 5,391,029 Distributions payable 490,334 Liquidations payable 361,111 Due to manager and affiliates 291,567 Other accrued expenses 75,676 Other liabilities 12,924 ____________ Total liabilities 60,761,132 ____________ Total Net Assets $282,517,389 ____________ Investments at Cost $265,712,691 ____________ Cost of short-term investments held as collateral for loaned securities $ 54,138,491 ____________ See accompanying notes 12 Statement of operations Delaware Delchester Fund Year Ended July 31, 2006 Investment Income: Interest $26,785,454 Securities lending income 215,834 Dividends 42,120 $27,043,408 ___________ ___________ Expenses: Management fees 1,944,259 Distribution expenses - Class A 668,550 Distribution expenses - Class B 363,832 Distribution expenses - Class C 141,868 Dividend disbursing and transfer agent fees and expenses 687,286 Accounting and administration expenses 120,771 Registration fees 86,507 Reports and statements to shareholders 61,732 Legal and professional fees 60,868 Custodian fees 27,898 Trustees' fees 15,971 Insurance fees 7,059 Pricing fees 5,159 Other 11,080 4,202,840 ___________ ___________ Less expenses absorbed or waived (303,793) ___________ Total operating expenses 3,899,047 ___________ Net Investment Income 23,144,361 ___________ Net Realized and Unrealized Gain (Loss) on Investments: Net realized gain on investments 969,389 Net change in unrealized appreciation/depreciation of investments (6,404,110) ___________ Net Realized and Unrealized Loss on Investments (5,434,721) ___________ Net Increase in Net Assets Resulting from Operations $17,709,640 ___________ See accompanying notes 13 Statements of changes in net assets Delaware Delchester Fund Year Ended 7/31/06 7/31/05 Increase (Decrease) in Net Assets from Operations: Net investment income $ 23,144,361 $ 25,877,808 Net realized gain on investments 969,389 20,059,634 Net change in unrealized appreciation/depreciation of investments (6,404,110) (800,316) _____________ ____________ Net increase in net assets resulting from operations 17,709,640 45,137,126 _____________ ____________ Dividends and Distributions to Shareholders from: Net investment income: Class A (17,992,334) (20,606,367) Class B (2,545,021) (3,987,176) Class C (991,894) (1,157,169) Institutional Class (1,301,764) (1,745,099) _____________ ____________ (22,831,013) (27,495,811) _____________ ____________ Capital Share Transactions: Proceeds from shares sold: Class A 62,659,889 86,807,210 Class B 3,341,549 6,503,838 Class C 7,393,332 7,835,958 Institutional Class 5,091,797 14,999,421 Net asset value of shares issued upon reinvestment of dividends and distributions: Class A 10,339,947 11,323,524 Class B 1,278,905 1,773,712 Class C 654,386 674,100 Institutional Class 1,236,304 1,588,434 _____________ ____________ 91,996,109 131,506,197 _____________ ____________ Cost of shares repurchased: Class A (112,766,868) (106,102,348) Class B (21,543,944) (27,460,989) Class C (11,400,686) (8,397,656) Institutional Class (7,273,814) (19,126,027) _____________ ____________ (152,985,312) (161,087,020) _____________ ____________ Decrease in net assets derived from capital share transactions (60,989,203) (29,580,823) _____________ ____________ Net Decrease in Net Assets (66,110,576) (11,939,508) Net Assets: Beginning of year 348,627,965 360,567,473 _____________ ____________ End of year (including undistributed net investment income of $- and $12,265, respectively) $ 282,517,389 $348,627,965 _____________ ____________ See accompanying notes 14 Financial highlights Delaware Delchester Fund Class A Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended __________________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ____________________________________________________________________________________________________________________________________ Net asset value, beginning of period $3.320 $3.180 $3.000 $2.580 $3.110 Income (loss) from investment operations: Net investment income (1) 0.258 0.243 0.258 0.303 0.317 Net realized and unrealized gain (loss) on investments (0.054) 0.155 0.186 0.399 (0.543) ______ ______ ______ ______ ______ Total from investment operations 0.204 0.398 0.444 0.702 (0.226) ______ ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.254) (0.258) (0.264) (0.282) (0.304) ______ ______ ______ ______ ______ Total dividends and distributions (0.254) (0.258) (0.264) (0.282) (0.304) ______ ______ ______ ______ ______ Net asset value, end of period $3.270 $3.320 $3.180 $3.000 $2.580 ______ ______ ______ ______ ______ Total return (2) 6.42% 12.84% 15.22% 28.67% (7.94%) Ratios and supplemental data: Net assets, end of period (000 omitted) $225,352 $269,002 $263,960 $253,966 $188,736 Ratio of expenses to average net assets 1.20% 1.25% 1.34% 1.47% 1.32% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.30% 1.27% 1.34% 1.47% 1.32% Ratio of net investment income to average net assets 7.84% 7.36% 8.19% 10.93% 10.76% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 7.74% 7.34% 8.19% 10.93% 10.76% Portfolio turnover 138% 254% 674% 788% 441% ____________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2003 and 2002. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager, as applicable. Performance would have been lower had the expense limitation not been in effect. See accompanying notes (continues) 15 Financial highlights Delaware Delchester Fund Class B Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended __________________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ____________________________________________________________________________________________________________________________________ Net asset value, beginning of period $3.330 $3.180 $3.010 $2.590 $3.120 Income (loss) from investment operations: Net investment income (1) 0.234 0.219 0.236 0.283 0.295 Net realized and unrealized gain (loss) on investments (0.064) 0.165 0.176 0.399 (0.543) ______ ______ ______ ______ ______ Total from investment operations 0.170 0.384 0.412 0.682 (0.248) ______ ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.230) (0.234) (0.242) (0.262) (0.282) ______ ______ ______ ______ ______ Total dividends and distributions (0.230) (0.234) (0.242) (0.262) (0.282) ______ ______ ______ ______ ______ Net asset value, end of period $3.270 $3.330 $3.180 $3.010 $2.590 ______ ______ ______ ______ ______ Total return (2) 5.34% 12.37% 14.02% 27.68% (8.28%) Ratios and supplemental data: Net assets, end of period (000 omitted) $28,314 $45,973 $62,243 $82,345 $79,507 Ratio of expenses to average net assets 1.91% 1.97% 2.06% 2.19% 2.04% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 2.01% 1.99% 2.06% 2.19% 2.04% Ratio of net investment income to average net assets 7.13% 6.64% 7.48% 10.21% 10.04% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 7.03% 6.62% 7.48% 10.21% 10.04% Portfolio turnover 138% 254% 674% 788% 441% ____________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2003 and 2002. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager, as applicable. Performance would have been lower had the expense limitation not been in effect. See accompanying notes 16 Delaware Delchester Fund Class C Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended __________________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ____________________________________________________________________________________________________________________________________ Net asset value, beginning of period $3.330 $3.180 $3.010 $2.590 $3.120 Income (loss) from investment operations: Net investment income (1) 0.234 0.219 0.235 0.283 0.295 Net realized and unrealized gain (loss) on investments (0.054) 0.165 0.176 0.399 (0.543) ______ ______ ______ ______ ______ Total from investment operations 0.180 0.384 0.411 0.682 (0.248) ______ ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.230) (0.234) (0.241) (0.262) (0.282) ______ ______ ______ ______ ______ Total dividends and distributions (0.230) (0.234) (0.241) (0.262) (0.282) ______ ______ ______ ______ ______ Net asset value, end of period $3.280 $3.330 $3.180 $3.010 $2.590 ______ ______ ______ ______ ______ Total return (2) 5.65% 12.35% 14.00% 27.68% (8.28%) Ratios and supplemental data: Net assets, end of period (000 omitted) $12,706 $16,271 $15,337 $16,965 $11,176 Ratio of expenses to average net assets 1.91% 1.97% 2.06% 2.19% 2.04% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 2.01% 1.99% 2.06% 2.19% 2.04% Ratio of net investment income to average net assets 7.13% 6.64% 7.48% 10.21% 10.04% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 7.03% 6.62% 7.48% 10.21% 10.04% Portfolio turnover 138% 254% 674% 788% 441% ____________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2003 and 2002. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager, as applicable. Performance would have been lower had the expense limitation not been in effect. See accompanying notes (continues) 17 Financial highlights Delaware Delchester Fund Institutional Class Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended __________________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ____________________________________________________________________________________________________________________________________ Net asset value, beginning of period $3.320 $3.180 $3.000 $2.590 $3.110 Income (loss) from investment operations: Net investment income (1) 0.267 0.252 0.267 0.311 0.325 Net realized and unrealized gain (loss) on investments (0.054) 0.155 0.186 0.389 (0.533) ______ ______ ______ ______ ______ Total from investment operations 0.213 0.407 0.453 0.700 (0.208) ______ ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.263) (0.267) (0.273) (0.290) (0.312) ______ ______ ______ ______ ______ Total dividends and distributions (0.263) (0.267) (0.273) (0.290) (0.312) ______ ______ ______ ______ ______ Net asset value, end of period $3.270 $3.320 $3.180 $3.000 $2.590 ______ ______ ______ ______ ______ Total return (2) 6.72% 13.16% 15.17% 29.46% (7.69%) Ratios and supplemental data: Net assets, end of period (000 omitted) $16,145 $17,382 $19,027 $17,296 $10,542 Ratio of expenses to average net assets 0.91% 0.97% 1.06% 1.19% 1.04% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.01% 0.99% 1.06% 1.19% 1.04% Ratio of net investment income to average net assets 8.13% 7.64% 8.48% 11.21% 11.04% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 8.03% 7.62% 8.48% 11.21% 11.04% Portfolio turnover 138% 254% 674% 788% 441% ____________________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2003 and 2002. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value. Total investment return reflects waivers and payment of fees by the manager, as applicable. Performance would have been lower had the expense limitation not been in effect. See accompanying notes 18 Notes to financial statements Delaware Delchester Fund July 31, 2006 Delaware Group Income Funds (the "Trust") is organized as a Delaware statutory trust and offers four Series: Delaware Corporate Bond Fund, Delaware Delchester Fund, Delaware Extended Duration Bond Fund and Delaware High-Yield Opportunities Fund. These financial statements and the related notes pertain to Delaware Delchester Fund (the "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, Class R and Institutional Class shares. Class A shares are sold with a front-end sales charge of up to 4.50%. Class A share purchases of $1,000,000 or more will incur a contingent deferred sales charge of up to 1% if redeemed during the first two years, provided that a financial advisor was paid commission on the purchase of those shares. Class B shares are sold with a contingent deferred sales charge that declines from 4% to zero depending upon the period of time the shares are held. Class B shares will automatically convert to Class A shares on a quarterly basis approximately eight years after purchase. Class C shares are sold with a contingent deferred sales charge of 1%, if redeemed during the first 12 months. Class R and Institutional Class shares are not subject to a sales charge and are offered for sale exclusively to a limited group of investors. As of July 31, 2006, Class R has not commenced operations. The investment objective of the Fund is to seek total return and, as a secondary objective, high current income. 1. Significant Accounting Policies The following accounting policies are in accordance with U.S. generally accepted accounting principles and are consistently followed by the Fund. Security Valuation - Equity securities, except those traded on the Nasdaq Stock Market, Inc. (Nasdaq), are valued at the last quoted sales price as of the time of the regular close of the New York Stock Exchange (NYSE) on the valuation date. Securities traded on the Nasdaq are valued in accordance with the Nasdaq Official Closing Price, which may not be the last sales price. If on a particular day an equity security does not trade, then the mean between the bid and asked prices will be used. Long-term debt securities are valued by an independent pricing service and such prices are believed to reflect the fair value of such securities. Short-term debt securities having less than 60 days to maturity are valued at amortized cost, which approximates market value. Securities lending collateral is valued at amortized cost, which approximates market value. Other securities and assets for which market quotations are not readily available are valued at fair value as determined in good faith under the direction of the Fund's Board of Trustees. In determining whether market quotations are readily available or fair valuation will be used, various factors will be taken into consideration, such as market closures, or with respect to foreign securities, aftermarket trading or significant events after local market trading (e.g., government actions or pronouncements, trading volume or volatility on markets, exchanges among dealers, or news events). Federal Income Taxes - The Fund intends to continue to qualify for federal income tax purposes as a regulated investment company and make the requisite distributions to shareholders. Accordingly, no provision for federal income taxes has been made in the financial statements. On July 13, 2006, the Financial Accounting Standards Board (FASB) released FASB Interpretation No. 48 "Accounting for Uncertainty in Income Taxes" (FIN 48). FIN 48 provides guidance for how uncertain tax positions should be recognized, measured, presented, and disclosed in the financial statements. FIN 48 requires the evaluation of 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 would be recorded as a tax benefit or expense in the current year. Adoption of FIN 48 is required for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. Although the Fund's tax positions are currently being evaluated, management does not expect the adoption of FIN 48 to have a material impact on the Fund's financial statements. Class Accounting - Investment income and common expenses are allocated to the 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. Repurchase Agreements - The Fund may invest in a pooled cash account along with other members of the Delaware Investments(R) Family of Funds pursuant to an exemptive order issued by the Securities and Exchange Commission. The aggregate daily balance of the pooled cash account is invested in repurchase agreements secured by obligations of the U.S. government. The respective collateral is held by the Fund's custodian bank until the maturity of the respective repurchase agreements. Each repurchase agreement is at least 102% collateralized. However, in the event of default or bankruptcy by the counterparty to the agreement, realization of the collateral may be subject to legal proceedings. Use of Estimates - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of 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. Other - Expenses common to all funds within the Delaware Investments Family of Funds are allocated amongst the 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. Dividend income is recorded on the ex-dividend date and interest income is recorded on the accrual basis. Discounts and premiums are amortized to interest income over the lives of the respective securities. Realized gains (losses) on paydowns of mortgage- and asset-backed securities are classified as interest income. 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. 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 0.65% on the first $500 million of average daily net assets of the Fund, 0.60% on the next $500 million, 0.55% on the next $1.5 billion, and 0.50% on average daily net assets in excess of $2.5 billion. (continues) 19 Notes to financial statements Delaware Delchester Fund 2. Investment Management, Administration Agreements and Other Transactions with Affiliates (continued) DMC has contractually agreed to waive that portion, if any, of its management fee and reimburse the Fund to the extent necessary to ensure that annual operating expenses, exclusive of taxes, interest, brokerage commissions, distribution fees, certain insurance costs and extraordinary expenses, do not exceed 0.91% of average daily net assets of the Fund through November 30, 2006. Delaware Service Company, Inc. (DSC), an affiliate of DMC, provides accounting, administration, dividend disbursing and transfer agent services. The Fund pays DSC a monthly fee computed at the annual rate of 0.04% of the Fund's average daily net assets for accounting and administration 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 Class A shares, 1.00% of the average daily net assets of the Class B and C shares and 0.60% of the average daily net assets of the Class R shares. DDLP has contracted to limit distribution and service fees through November 30, 2006 in order to prevent distribution and service fees of Class R shares from exceeding 0.50% of average daily net assets. Institutional Class shares pay no distribution and service expenses. The Board of Trustees has adopted a formula for calculating 12b-1 plan fees for the Fund's Class A shares that went into effect on June 1, 1992. The total 12b-1 fees to be paid by Class A shareholders of the Fund will be the sum of 0.10% of the average daily net assets representing shares that were acquired prior to June 1, 1992 and 0.30% of the average daily net assets representing shares that were acquired on or after June 1, 1992. All Class A shareholders will bear 12b-1 fees at the same rate, the blended rate based upon the allocation of the 0.10% and 0.30% rates described above. At July 31, 2006, the Fund had liabilities payable to affiliates as follows: Investment management fee payable to DMC $135,365 Dividend disbursing, transfer agent, accounting and administration fees and other expenses payable to DSC 61,863 Distribution fee payable to DDLP 84,856 Other expenses payable to DMC and affiliates* 9,483 * 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 services, including internal legal services provided to the Fund by DMC employees. For the year ended July 31, 2006, the Fund was charged $17,052 for internal legal services provided by DMC. For the year ended July 31, 2006, DDLP earned $17,227 for commissions on sales of the Fund's Class A shares. For the year ended July 31, 2006, DDLP received gross contingent deferred sales charge commissions of $474, $43,498 and $2,995 on redemption of the Fund's Class A, 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. 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 For the year ended July 31, 2006, the Fund made purchases of $401,730,119 and sales of $476,127,388 of investment securities other than short-term investments. At July 31, 2006, the cost of investments for federal income tax purposes was $320,334,537. At July 31, 2006, net unrealized depreciation was $3,918,824, of which $6,712,942 related to unrealized appreciation of investments and $10,631,766 related to unrealized depreciation of investments. 4. Dividend and Distribution Information Income and long-term capital gain distributions are determined in accordance with federal income tax regulations, which may differ from U.S. generally accepted accounting principles. Additionally, net short-term gains on sales of investment securities are treated as ordinary income for federal income tax purposes. The tax character of dividends and distributions paid during the years ended July 31, 2006 and 2005 was as follows: Year Ended 7/31/06 7/31/05 _________ _________ Ordinary income $22,831,013 $27,495,811 As of July 31, 2006, the components of net assets on a tax basis were as follows: Shares of beneficial interest $924,798,722 Capital loss carryforwards (638,362,509) Unrealized depreciation of investments (3,918,824) ____________ Net assets $282,517,389 ____________ The differences between book basis and tax basis components of net assets are primarily attributable to tax deferral of losses on wash sales and tax treatment of market discount and premium on debt instruments. For financial reporting purposes, capital accounts are adjusted to reflect the tax character of permanent book/tax differences. Reclassifications are primarily due to tax treatment of gain (loss) on paydowns of mortgage- and asset-backed securities and market discount and premium on certain debt instruments. Results of operations and net assets were not affected by these reclassifications. For the year ended July 31, 2006, the Fund recorded the following reclassifications. Undistributed net investment income $(325,613) Accumulated net realized gain (loss) 325,613 For federal income tax purposes, capital loss carryforwards may be carried forward and applied against future capital gains. $694,887 was utilized in 2006. Capital loss carryforwards remaining at July 31, 2006 will expire as follows: $122,795,424 expires in 2008, $284,053,994 expires in 2009, $211,481,773 expires in 2010 and $20,031,318 expires in 2011. 20 5. Capital Shares Transactions in capital shares were as follows: Year Ended 7/31/06 7/31/05 Shares sold: Class A 19,221,892 26,432,120 Class B 1,023,016 1,990,820 Class C 2,266,941 2,375,096 Institutional Class 1,561,744 4,523,623 Shares issued upon reinvestment of dividends and distributions: Class A 3,156,106 3,431,877 Class B 390,108 536,838 Class C 199,497 203,703 Institutional Class 377,850 480,197 __________ __________ 28,197,154 39,974,274 __________ __________ Shares repurchased: Class A (34,377,137) (32,008,734) Class B (6,578,407) (8,276,203) Class C (3,473,709) (2,512,311) Institutional Class (2,230,435) (5,762,194) __________ __________ (46,659,688) (48,559,442) __________ __________ Net decrease (18,462,534) (8,585,168) __________ __________ For the years ended July 31, 2006 and 2005, 2,331,339 Class B shares were converted to 2,334,775 Class A shares valued at $7,633,584 and 2,838,347 Class B shares were converted to 2,844,669 Class A shares valued at $9,448,878, respectively. The respective amounts are included in Class B redemptions and Class A subscriptions in the table above and the Statements of Changes in Net Assets. 6. Line of Credit The Fund, along with certain other funds in the Delaware Investments(R) Family of Funds (the "Participants"), participates in a $225,000,000 revolving line of credit facility to be used for temporary or emergency purposes as an additional source of liquidity to fund redemptions of investor shares. The Participants are charged an annual commitment fee, which is allocated across the Participants on the basis of each funds' allocation of the entire facility. The Participants may borrow up to a maximum of one third of their net assets under the agreement. The Fund had no amounts outstanding as of July 31, 2006, or at any time during the year. 7. Securities Lending The Fund, along with other funds in the Delaware Investments Family of Funds, may lend its securities pursuant to a security lending agreement (Lending Agreement) with JPMorgan Chase. Initial security loans made pursuant to the Lending Agreement are required to be secured by U.S. government obligations and/or cash collateral not less than 102% of the market value of the securities issued in the United States. With respect to each loan, if the aggregate market value of the collateral held on any business day is less than the aggregate market value of the securities which are the subject of such loan, the borrower will be notified to provide additional collateral not less than the applicable collateral requirements. Cash collateral received is invested in fixed income securities, with a weighted average maturity not to exceed 90 days, rated in one of the top two tiers by Standard & Poor's Ratings Group or Moody's Investors Service, Inc. or repurchase agreements collateralized by such securities. However, in the event of default or bankruptcy by the lending agent, realization and/or retention of the collateral may be subject to legal proceedings. In the event the borrower fails to return loaned securities and the collateral received is insufficient to cover the value of the loaned securities and provided such collateral shortfall is not the result of investment losses, the lending agent has agreed to pay the amount of the shortfall to the Fund, or at the discretion of the lending agent, replace the loaned securities. The Fund continues to record dividends on the securities loaned and is subject to change in value of the securities loaned that may occur during the term of the loan. The Fund has the right under the Lending Agreement to recover the securities from the borrower on demand. The security lending agent and the borrower retain a portion of the earnings from the collateral investments. The Fund records security lending income net of such allocation. At July 31, 2006, the market value of the securities on loan was $52,991,734, for which cash collateral was received and invested in accordance with the Lending Agreement. Such investments are presented on the Statement of Net Assets under the caption "Securities Lending Collateral." 8. Credit and Market Risk The Fund invests a portion of its assets in high yield fixed income securities, which carry ratings of BB or lower by Standard & Poor's Ratings Group and/or Ba or lower by Moody's Investors Service, Inc. Investments in these higher yielding securities are generally accompanied by a greater degree of credit risk than higher rated securities. Additionally, lower rated securities may be more susceptible to adverse economic and competitive industry conditions than investment grade securities. The Fund may invest up to 15% of its total 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, 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 of Trustees 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. Rule 144A and illiquid securities have been identified on the Statement of Net Assets. 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. (continues) 21 Notes to financial statements Delaware Delchester Fund 10. Tax Information (Unaudited) The information set forth below is for the Fund's fiscal year as required by federal laws. Shareholders, however, must report distributions on a calendar year basis for income tax purposes, which may include distributions for portions of two fiscal years of a fund. Accordingly, the information needed by shareholders for income tax purposes will be sent to them in January of each year. Please consult your tax advisor for proper treatment of this information. For the fiscal year ended July 31, 2006, the Fund designates distributions paid during the year as follows: (A) (B) Long-Term Ordinary Capital Gains Income Total Distributions Distributions* Distributions (Tax Basis) (Tax Basis) (Tax Basis) _____________ ______________ _____________ 0% 100% 100% (A) and (B) are based on a percentage of the Fund's total distributions. * For the fiscal year ended July 31, 2006, certain interest income paid by the Fund, determined to be Qualified Interest Income and Short-Term Capital Gains, may be subject to relief from U.S. withholding for foreign shareholders, as provided by the American Jobs Creation Act of 2004. For the fiscal year ended July 31, 2006, the Delaware Delchester Fund has designated a maximum distribution of $22,782,776 of Qualified Interest Income. 22 Report of independent registered public accounting firm To the Shareholders and Board of Trustees Delaware Group Income Funds - Delaware Delchester Fund We have audited the accompanying statement of net assets and statement of assets and liabilities of Delaware Delchester Fund (one of the series constituting Delaware Group Income Funds) (the "Fund") as of July 31, 2006, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of July 31, 2006, by correspondence with the custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of the Delaware Delchester Fund series of Delaware Group Income Funds at July 31, 2006, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the five years in the period then ended, in conformity with U.S. generally accepted accounting principles. /s/ Ernst and Young LLP Philadelphia, Pennsylvania September 13, 2006 23 Other Fund information Delaware Delchester Fund Board Consideration of Delaware Delchester Fund Investment Advisory Agreement. At a meeting held on May 17-18, 2006 (the "Annual Meeting"), the Board of Trustees, including a majority of disinterested or independent Trustees, approved the renewal of the Investment Advisory Agreement for the Delaware Delchester Fund (the "Fund"). In making its decision, the Board considered information furnished throughout the year at regular Board meetings, as well as information prepared specifically in connection with the Annual Meeting. Information furnished and discussed throughout the year included reports detailing Fund performance, investment strategies, expenses, compliance matters and other services provided by Delaware Management Company ("DMC"), the investment advisor. Information furnished specifically in connection with the Annual Meeting included materials provided by DMC and its affiliates ("Delaware Investments") concerning, among other things, the level of services provided to the Fund, the costs of such services to the Fund, economies of scale and the financial condition and profitability of Delaware Investments. In addition, in connection with the Annual Meeting, the Board considered independent historical and comparative reports prepared by Lipper Inc. ("Lipper"), an independent statistical compilation organization. The Board also considered industry comparative information presented by representatives from Lipper. The Lipper reports compared the Fund's investment performance and expenses with those of other comparable mutual funds. The Board also received certain supplemental information regarding management's policy with respect to advisory fee levels and its philosophy with respect to breakpoints; the structure of portfolio manager compensation; and any constraints or limitations on the availability of securities in certain investment styles which might inhibit DMC's ability to fully invest in accordance with Fund policies. In considering such materials, the independent Trustees received assistance and advice from and met separately with independent counsel and representatives from Lipper. At the meeting with representatives from Lipper, Mr. Driscoll, then Chairman of the Delaware Investments Family of Funds, and Chairman and Chief Executive Officer of the investment advisor, was present to respond to questions by Lipper and the independent Trustees. While the Board considered the Investment Advisory Agreements for all of the funds in the Delaware Investments Family of Funds at the same Board meeting, information was provided and considered by the Board for each fund individually. In approving the continuance of the Investment Advisory Agreement for the Fund, the Board, including a majority of independent Trustees, determined that the existing advisory fee structure was fair and reasonable and that the continuance of the Investment Advisory Agreement was in the best interests of the Fund and its shareholders. While attention was given to all information furnished, the following discusses the primary factors relevant to the Board's deliberations and determination, including those relating to the selection of the investment advisor and the approval of the advisory fee. Nature, Extent and Quality of Service. Consideration was given to the services provided by Delaware Investments to the Fund and its shareholders. In reviewing the nature, extent and quality of services, the Board emphasized reports furnished to it throughout the year at regular Board meetings covering matters such as the relative performance of the Fund, compliance of portfolio managers with the investment policies, strategies and restrictions for the Fund, the compliance of management personnel with the Code of Ethics adopted throughout the Delaware Investments Family of Funds complex, the adherence to fair value pricing procedures as established by the Board and the accuracy of net asset value calculations. The Board noted that it was pleased with the current staffing of the Fund's investment advisor and management's efforts to strengthen and deepen portfolio management teams during the past year, the emphasis on research and the compensation system for advisory personnel. Favorable consideration was given to DMC's efforts to maintain, and in some instances increase, financial and human resources committed to fund matters. Other factors taken into account by the Board were Delaware Investments' preparedness for, and response to, legal and regulatory matters. The Board also considered the transfer agent and shareholder services provided to Fund shareholders by Delaware Investments' affiliate, Delaware Service Company, Inc. ("DSC"), noting DSC's commitment to maintain a high level of service in keeping with its past receipt of the DALBAR Pyramid Award, and the continuing expenditures by Delaware Investments to improve the delivery of shareholder services. Additionally, the Board noted the extent of benefits provided to Fund shareholders for being part of the Delaware Investments Family of Funds, including the privilege to exchange investments between the same class of shares of funds without a sales charge, the ability to reinvest Fund dividends into other funds and the privilege to combine holdings in other funds to obtain a reduced sales charge. The Board was satisfied with the nature, extent and quality of the overall services provided by Delaware Investments. Investment Performance. The Board considered the investment performance of DMC and the Fund. The Board was pleased with DMC's investment performance. The Board placed significant emphasis on the investment performance of the Fund in view of its importance to shareholders. While consideration was given to performance reports and discussions with portfolio managers at Board meetings throughout the year, particular weight was given to the Lipper reports furnished for the Annual Meeting. The Lipper reports prepared for the Fund showed the investment performance of its Class A shares in comparison to a group of similar funds as selected by Lipper (the "Performance Universe"). A fund with the best performance is ranked first, and a fund with the poorest performance is ranked last. The highest/best performing 25% of funds in the Performance Universe make up the first quartile; the next 25% - the second quartile; the next 25% - the third quartile; and the poorest/worst performing 25% of funds in the Performance Universe make up the fourth quartile. Comparative annualized performance for the Fund was shown for the past one, three, five and 10 year periods ended January 31, 2006. The Board noted its objective that the Fund's performance for the periods considered be at or above the median of its Performance Universe. The following paragraph summarizes the performance results for the Fund and the Board's view of such performance. The Performance Universe for the Fund consisted of the Fund and all retail and institutional high current yield funds as selected by Lipper. The Lipper report comparison showed that the Fund's total return for the one and three year periods was in the first quartile of such Performance Universe. The report further showed that the Fund's total return for the five and 10 year periods was in the third and fourth quartiles, respectively. The Board noted that the Fund's performance results were mixed. However, given the strong recent returns, which were achieved by the current portfolio manager, the Board was satisfied with such performance. 24 Comparative Expenses. The Board considered expense data for the Delaware Investments Family of Funds. Management provided the Board with information on pricing levels and fee structures for the Fund. The Board focused particularly on the comparative analysis of the management fees and total expense ratios of the Fund and the management fees and expense ratios of a group of similar funds as selected by Lipper (the "Expense Group"). In reviewing comparative costs, the Fund's contractual management fee and the actual management fee incurred by the Fund were compared with the contractual management fees (assuming all funds in the Expense Group were similar in size to the Fund) and actual management fees (as reported by each fund) of other funds within the Expense Group, taking into effect any applicable breakpoints and fee waivers. The Fund's total expenses were also compared with those of its Expense Group. The Lipper total expenses, for comparative consistency, were shown by Lipper for Class A shares and compared total expenses including 12b-1 and non-12b-1 service fees. The Board also considered fees paid to Delaware Investments for non-management services. The Board noted its objective to limit the Fund's total expense ratio to an acceptable range as compared to the median of the Expense Group. The following paragraph summarizes the expense results for the Fund and the Board's view of such expenses. The expense comparisons for the Fund showed that its actual management fee was in the quartile with the second lowest expenses of its Expense Group and its total expenses were in the quartile with the highest expenses of its Expense Group. The Board gave favorable consideration to the Fund's management fee, but noted that the Fund's total expenses were not in line with the Board's objective. In evaluating the total expenses, the Board considered waivers in place through November 2006 and recent initiatives implemented by management, such as the outsourcing of certain transfer agency services, creating an opportunity for a reduction in expenses. The Board was satisfied with management's efforts to improve the Fund's total expense ratio and bring it in line with the Board's objective. Management Profitability. The Board considered the level of profits, if any, realized by Delaware Investments in connection with the operation of the Fund. In this respect, the Board reviewed the Investment Management Profitability Analysis that addressed the overall profitability of Delaware Investments' business in providing management and other services to each of the individual funds and the Delaware Investments Family of Funds as a whole. Specific attention was given to the methodology followed in allocating costs for the purpose of determining profitability. Management stated that the level of profits of Delaware Investments, to a certain extent, reflected operational cost savings and efficiencies initiated by Delaware Investments. The Board considered Delaware Investments' expenditures to improve services provided to fund shareholders and to meet additional regulatory and compliance requirements resulting from recent SEC initiatives. The Board also considered the extent to which Delaware Investments might derive ancillary benefits from fund operations, including the potential for procuring additional business as a result of the prestige and visibility associated with its role as service provider to the Delaware Investments Family of Funds, the benefits from allocation of fund brokerage to improve trading efficiencies and the use of "soft" commission dollars to pay for proprietary and non-proprietary research. The Board did not find that the level of profits realized by Delaware Investments from the relationships with the Fund and the Delaware Investments Family of Funds required negotiation of reduction of fees. Economies of Scale. The Trustees considered whether economies of scale are realized by Delaware Investments as the Fund's assets increase and the extent to which any economies of scale are reflected in the level of management fees charged. The Trustees took into account the standardized advisory fee pricing and structure approved by the Board and shareholders as part of a complex-wide shareholder meeting conducted in 1998/1999. At that time, Delaware Investments introduced breakpoints to account for management economies of scale. The Board noted that the fee under the Fund's management contract fell within the standard structure. Although the Fund has not reached a size at which it can take advantage of breakpoints, the Board recognized that the fee was structured so that when the Fund grows, economies of scale may be shared. 25 Board of trustees/directors and officers addendum Delaware Investments(R) Family of Funds A mutual fund is governed by a Board of Trustees/Directors ("Trustees"), which has oversight responsibility for the management of a fund's business affairs. Trustees establish procedures and oversee and review the performance of the investment manager, the distributor, and others who perform services for the fund. The independent fund trustees, in particular, are advocates for shareholder interests. Each trustee has served in that capacity since he or she was elected to or appointed to the Board of Trustees, and will continue to serve until his or her retirement or the election of a new trustee in his or her place. The following is a list of the Trustees and Officers with certain background and related information. Number of Portfolios in Fund Other Name, Complex Overseen Directorships Address, Position(s) Length of Principal Occupation(s) by Trustee Held by and Birth Date Held with Fund(s) Time Served During Past 5 Years or Officer Trustee or Officer ____________________________________________________________________________________________________________________________________ Interested Trustees ____________________________________________________________________________________________________________________________________ Patrick P. Coyne (1) Chairman, Chairman and Trustee Patrick P. Coyne has served in 83 None 2005 Market Street President, since August 16, 2006 various executive capacities Philadelphia, PA Chief Executive at different times at 19103 Officer, and President and Delaware Investments.(2) Trustee Chief Executive Officer April 14, 1963 since August 1, 2006 ____________________________________________________________________________________________________________________________________ Independent Trustees ____________________________________________________________________________________________________________________________________ Thomas L. Bennett Trustee Since Private Investor - 83 None 2005 Market Street March 2005 (March 2004-Present) Philadelphia, PA 19103 Investment Manager - Morgan Stanley & Co. October 4, 1947 (January 1984-March 2004) ____________________________________________________________________________________________________________________________________ John A. Fry Trustee Since President - 83 Director - 2005 Market Street January 2001 Franklin & Marshall College Community Health Philadelphia, PA (June 2002-Present) Systems 19103 Executive Vice President - Director - May 28, 1960 University of Pennsylvania Allied Barton (April 1995-June 2002) Security Holdings ____________________________________________________________________________________________________________________________________ Anthony D. Knerr Trustee Since Founder and Managing Director - 83 None 2005 Market Street April 1990 Anthony Knerr & Associates Philadelphia, PA (Strategic Consulting) 19103 (1990-Present) December 7, 1938 ____________________________________________________________________________________________________________________________________ Lucinda S. Landreth Trustee Since Chief Investment Officer - 83 None 2005 Market Street March 2005 Assurant, Inc. Philadelphia, PA (Insurance) 19103 (2002-2004) June 24, 1947 ____________________________________________________________________________________________________________________________________ Ann R. Leven Trustee Since Owner - 83 Director and 2005 Market Street September 1989 ARL Associates, Audit Committee Philadelphia, PA Strategic Financial Planning Chairperson - Andy 19103 Consulting Firm Warhol Foundation (1983-Present) November 1, 1940 Director and Audit Committee Member - Systemax, Inc. ____________________________________________________________________________________________________________________________________ 26 Number of Portfolios in Fund Other Name, Complex Overseen Directorships Address, Position(s) Length of Principal Occupation(s) by Trustee Held by and Birth Date Held with Fund(s) Time Served During Past 5 Years or Officer Trustee or Officer ____________________________________________________________________________________________________________________________________ Independent Trustees (continued) ____________________________________________________________________________________________________________________________________ Thomas F. Madison Trustee Since President and Chief 83 Director - 2005 Market Street May 1999 Executive Officer - Banner Health Philadelphia, PA MLM Partners, Inc. 19103 (Small Business Investing Director - and Consulting) CenterPoint Energy February 25, 1936 (January 1993-Present) Director and Audit Committee Member - Digital River, Inc. Director and Audit Committee Member - Rimage Corporation Director - Valmont Industries, Inc. ____________________________________________________________________________________________________________________________________ Janet L. Yeomans Trustee Since Vice President 83 None 2005 Market Street April 1999 (January 2003-Present) Philadelphia, PA and Treasurer 19103 (January 2006-Present) 3M Corporation July 31, 1948 Ms. Yeomans has held various management positions at 3M Corporation since 1983. ____________________________________________________________________________________________________________________________________ J. Richard Zecher Trustee Since Founder - 83 Director and Audit 2005 Market Street March 2005 Investor Analytics Committee Member - Philadelphia, PA (Risk Management) Investor Analytics 19103 (May 1999-Present) Director and Audit July 3, 1940 Founder - Committee Member - Sutton Asset Management Oxigene, Inc. (Hedge Fund) (September 1998-Present) ____________________________________________________________________________________________________________________________________ Officers ____________________________________________________________________________________________________________________________________ Michael P. Bishof Senior Chief Financial Michael P. Bishof has served in 83 None (3) 2005 Market Street Vice President Officer since various executive capacities Philadelphia, PA and February 2005 at different times at 19103 Chief Financial Delaware Investments. Officer August 18, 1962 ____________________________________________________________________________________________________________________________________ David F. Connor Vice President, Vice President since David F. Connor has served as 83 None (3) 2005 Market Street Deputy General September 21, 2000 Vice President and Deputy Philadelphia, PA Counsel, and Secretary and Secretary General Counsel of 19103 since Delaware Investments October 2005 since 2000. December 2, 1963 ____________________________________________________________________________________________________________________________________ David P. O'Connor Senior Vice Senior Vice President, David P. O'Connor has served in 83 None (3) 2005 Market Street President, General Counsel, and various executive and legal Philadelphia, PA General Counsel, Chief Legal Officer capacities at different times 19103 and Chief since at Delaware Investments. Legal Officer October 2005 February 21, 1966 ____________________________________________________________________________________________________________________________________ John J. O'Connor Senior Vice President Treasurer John J. O'Connor has served in 83 None (3) 2005 Market Street and Treasurer since various executive capacities Philadelphia, PA February 2005 at different times at 19103 Delaware Investments. June 16, 1957 ____________________________________________________________________________________________________________________________________ (1) Mr. Coyne is considered to be an "Interested Trustee" because he is an executive officer of the Fund's(s') investment advisor. (2) Delaware Investments is the marketing name for Delaware Management Holdings, Inc. and its subsidiaries, including the Fund's(s') investment advisor, principal underwriter, and its transfer agent. (3) Michael P. Bishof, David F. Connor, David P. O'Connor, and John J. O'Connor serve in similar capacities for the six portfolios of the Optimum Fund Trust, which have the same investment advisor, principal underwriter, and transfer agent as the registrant. John J. O'Connor also serves in a similar capacity for Lincoln Variable Insurance Products Trust, which has the same investment advisor as the registrant. The Statement of Additional Information for the Fund(s) includes additional information about the Trustees and Officers and is available, without charge, upon request by calling 800 523-1918. 27 About the organization This semiannual report is for the information of Delaware Delchester Fund shareholders, but it may be used with prospective investors when preceded or accompanied by a current prospectus for Delaware Delchester Fund and the Delaware Investments(R) Performance Update for the most recently completed calendar quarter. The prospectus sets forth details about charges, expenses, investment objectives, and operating policies of the Fund. You should read the prospectus carefully before you invest. The figures in this report represent past results that 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. 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 Franklin & Marshall College Lancaster, 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 Owner - ARL Associates, Strategic Financial Planning Consulting Firm Washington, DC 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 Michael P. Bishof Senior Vice President and Chief Financial Officer Delaware Investments Family of Funds Philadelphia, PA David F. Connor Vice President, Deputy General Counsel, and Secretary 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 John J. O'Connor Senior Vice President and Treasurer Delaware Investments Family of Funds Philadelphia, PA Contact information Investment manager Delaware Management Company, a series of Delaware Management Business Trust Philadelphia, PA National distributor Delaware Distributors, L.P. Philadelphia, PA Shareholder servicing, dividend disbursing, and transfer agent Delaware Service Company, Inc. 2005 Market Street Philadelphia, PA 19103-7094 For shareholders 800 523-1918 For securities dealers and financial institutions representatives only 800 362-7500 Web site www.delawareinvestments.com 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 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; (ii) on the Fund's Web site at http://www.delawareinvestments.com; and (iii) on the Commission's Web site at http://www.sec.gov. The Fund's Forms N-Q may be reviewed and copied at the Commission's Public Reference Room in Washington, D.C.; information on the operation of the Public Reference Room may be obtained 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 http://www.delawareinvestments.com; and (ii) on the Commission's Web site at http://www.sec.gov. 28 Get shareholder reports and prospectuses online instead of in the mail. > Visit www.delawareinvestments.com/edelivery Simplify your life. Manage your investments online! Get Account Access, the Delaware Investments(R) secure Web site that allows you to conduct your business online. Gain 24-hour access to your account and one of the highest levels of Web security available. You also get: o Hassle-free investing - Make online purchases and redemptions at any time. o Simplified tax processing - Automatically retrieve your Delaware Investments accounts' 1099 information and import it directly into your 1040 tax return. Available only with Turbo Tax(R) Online(SM) and Desktop software - www.turbotax.com. o Less mail clutter - Get instant access to your fund materials online with Delaware eDelivery. Register for Account Access today! Please visit us at www.delawareinvestments.com, select Individual Investors, and click Account Access. Please call our Shareholder Service Center at 800 523-1918 Monday through Friday from 8:00 a.m. to 7:00 p.m., Eastern Time, for assistance with any questions. [DELAWARE INVESTMENTS LOGO] 833 Printed in the USA AR-024 [7/06] CGI 9/06 MF-06-08-024 PO11208 Annual Report Delaware High-Yield Opportunities Fund July 31, 2006 Fixed income mutual fund [DELAWARE INVESTMENTS LOGO] [LOGO] POWERED BY RESEARCH (R) <page> Table of contents > Portfolio management review ................................................1 > Performance summary ........................................................4 > Disclosure of Fund expenses ................................................6 > Sector allocation and credit rating breakdown ..............................7 > Statement of net assets ....................................................8 > Statement of operations ...................................................13 > Statements of changes in net assets .......................................14 > Financial highlights ......................................................15 > Notes to financial statements .............................................20 > Report of independent registered public accounting firm ...................23 > Other Fund information ....................................................24 > Board of trustees/directors and officers addendum .........................26 > About the organization ....................................................28 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. (C) 2006 Delaware Distributors, L.P. <page> Portfolio management review Delaware High-Yield Opportunities Fund July 31, 2006 Timothy L. Rabe Senior Portfolio Manager The manager of Delaware High-Yield Opportunities Fund provided the answers to the questions below as a review of the Fund's activities over the fiscal year ended July 31, 2006. Please see page 5 to learn more about the portfolio manager. Q: What was the investment climate among high yield fixed income investments during the fiscal year ended July 31, 2006? A: Overall, the economic environment provided a relatively favorable backdrop for the high yield fixed income market. The U.S. economy continued to grow at a robust pace and interest rates, although rising, remained relatively low. This setting helped foster an environment, that kept default rates near their all-time lows and contributed to positive overall returns for high yield bonds. In particular, bonds with CCC credit ratings performed well, primarily because of a rebound among automotive industry bonds. After experiencing credit downgrades in the last calendar quarter of 2005, Ford and General Motors securities performed consistently well throughout 2006, which boosted high yield debt performance throughout the auto industry. In addition, the market experienced significant cash inflows, as investors throughout the world turned to the U.S. debt market to capture yield (source: AMG Data Services). Furthermore, the supply of high yield debt remained healthy, with several large companies, including Hertz, Neiman-Marcus and Healthsouth, bringing issues to market. Q: How did the Fund perform for the fiscal year? A: Delaware High-Yield Opportunities Fund achieved positive gains for the fiscal year ended July 31, 2006 with all but a few sectors making contributions. Class A shares returned 5.49% at net asset value and 0.64% at the maximum offer price (both figures represent all distributions reinvested). For complete, annualized performance for Delaware High-Yield Opportunities Fund, please see the table on page 4. By comparison, the Bear Stearns High Yield Index, which serves as the Fund's benchmark, gained 3.80% during the same period. Q: What broad strategies influenced Fund performance during the fiscal year? A: We continued to focus on security selection as the primary driver of the Fund's performance. Although the economic climate and other "big picture" factors were influential in the high yield market, company-specific characteristics and influences generally played larger roles in overall performance during the fiscal year. As such, we generally avoided making significant sector "bets," preferring instead to focus on our in-depth research that attempts to uncover attractively valued securities throughout the high yield universe. We believe these efforts helped the Fund outperform the benchmark at net asset value for the one-year period ended July 31, 2006. There were no "themes" or significant sector-performance advantages that generated our positive results. Instead, the Fund's performance was realized from a wide array of individual fixed income securities, selected for their overall value and yield advantages. From a quality standpoint, Delaware High-Yield Opportunities Fund held a lesser weighting than the Bear Stearns High Yield Index in BB-rated credits, because we preferred to hold more B-rated securities. By focusing on bonds with B credit-quality ratings, we were able to capture extra yield, compared to the benchmark, as well as good value. This strategy helped the Fund's overall return compared to that of its benchmark index. Q: Which holdings were significant performers within the Fund over the fiscal year? A: Overall, the Fund benefited from a number of mergers and acquisitions, and initial public offerings (IPOs). In terms of individual bonds, our holdings of Mirant Americas Generation, an Atlanta-based power company, provided positive return during the year. We purchased Mirant bonds before the corporation filed for bankruptcy (continues) 1 <page> Portfolio management review Delaware High-Yield Opportunities Fund July 31, 2006 in July 2003, and we held the position throughout the bankruptcy proceedings. When the company reorganized and emerged from bankruptcy in January 2006, the bonds posted strong performance. We also held a position in paper company Georgia-Pacific, which declined slightly during the first eight months of the fiscal year and then rallied after Georgia-Pacific agreed to a buyout by Koch Industries. Horizon Lines, a shipping company represented in the Fund's portfolio, reported strong financials and eventually announced an initial public offering, which caused the company's bonds to rally. Comparatively, the Fund realized disappointing results from Uno Restaurant. The company's bonds have underperformed since they came to market, primarily because of the company's inclination for promoting shareholder value through dividend payments. In addition, our position in Anchor Glass (later sold by the Fund) detracted from the Fund's overall performance, after the company filed for bankruptcy because it was unable to meet its creditors' demands. From an industry standpoint, our positions in Canadian paper companies suffered losses for the Fund. The strength of the Canadian dollar compared to other currencies made Canadian paper manufacturers less attractive to global investors. Q: At fiscal year end, how was the portfolio positioned? A: We continue to hold a broadly diversified portfolio of securities that we believe offer value and yield advantages. We do not favor any single industry or sector, preferring to generate return potential and manage risk on a security-by-security basis. An example of this is our approach to the auto industry. Throughout the one-year period, auto industry bonds, particularly Ford and General Motors, were significant market movers and represented approximately 15% of the high yield benchmark, the Bear Stearns High Yield Index. We maintain a significantly lighter weighting than the index when it comes to auto bonds. This approach is also reflective of our belief that a single industry should not represent such a large component of the portfolio. In terms of individual securities, we continue to believe that there is compelling value among the larger leveraged buyouts coming to market. We believe the size, scale, and complexity of these new issues make them more attractive from an historical perspective. Of course, we continue to monitor the economic backdrop, because a significant slowdown in growth could hurt the high yield market from a macroeconomic perspective. In addition, we continue to closely watch the supply-and-demand forces at work in the high yield market. 2 Performance summary Delaware High-Yield Opportunities Fund The performance data quoted represent past performance; past performance does not guarantee future results. Investment return and principal value will fluctuate so your shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance data quoted. Adverse conditions may affect the issuer's ability to pay interest and principal on securities held by the Fund. A rise or fall in the interest rates can have a significant impact on bond prices and the NAV (net asset value) of the Fund. Funds that invest in bonds can lose their value as interest rates rise, and an investor can lose principal. Please obtain the performance data for the most recent month end by calling 800 523-1918 or by visiting our Web site at www.delawareinvestments.com/performance. You should consider the investment objectives, risks, charges, and expenses of the investment carefully before investing. The Delaware High-Yield Opportunities Fund prospectus contains this and other important information about the Fund. Please request a prospectus through your financial advisor, or by calling 800 523-1918 or visiting our Web site. Read it carefully before you invest or send money. Performance includes reinvestment of all distributions. Fund Performance Average Annual Total Returns Through July 31, 2006 1 Year 5 Years Lifetime _______________________________________________________________________________ Class A (Est. 12/30/96) Excluding Sales Charge +5.49% +10.74% +6.92% Including Sales Charge +0.64% +9.71% +6.41% ______________________________________________________________________________ Class B (Est. 2/17/98) Excluding Sales Charge +4.75% +9.92% +4.55% Including Sales Charge +0.85% +9.72% +4.55% ______________________________________________________________________________ Class C (Est. 2/17/98) Excluding Sales Charge +4.75% +9.91% +4.51% Including Sales Charge +3.77% +9.91% +4.51% _______________________________________________________________________________ The Fund invests primarily in high yield bonds (commonly known as "junk bonds"), which involve greater risk than investing in higher-quality investment-grade bonds. The portfolio may be invested in foreign high yield corporate bonds, which have special risks that include currency fluctuations, economic and political changes, and different accounting standards. Returns reflect the reinvestment of distributions and any applicable sales charges as noted below. Performance for Class B and C shares, excluding sales charges, assumes either that contingent deferred sales charges did not apply or the investment was not redeemed. The Fund offers Class A, B, C, R, and Institutional Class shares. Class A shares are sold with a front-end sales charge of up to 4.50% and have an annual distribution and service fee of up to 0.30%. Class B shares are sold with a contingent deferred sales charge that declines from 4% to zero depending on the period of time the shares are held. Class B shares will automatically convert to Class A shares on a quarterly basis approximately eight years after purchase. They are also subject to an annual distribution and service fee of 1%. Lifetime performance figures for Class B shares reflect conversion to Class A shares after eight years. Class C shares are sold with a contingent deferred sales charge of 1% if redeemed during the first 12 months. They are also subject to an annual distribution and service fee of 1%. The average annual total return for the one-year and lifetime periods ended July 31, 2006 for Class R shares of the Delaware High-Yield Opportunities Fund were +5.27% and +10.33%, respectively. Class R shares were first made available on June 2, 2003 and are available only for certain retirement plan products. They are sold without a sales charge and have an annual distribution and service fee of up to 0.60%. The distributor has contracted to limit distribution and service fees to 0.50% through November 30, 2006. The average annual total returns for the one-year, five-year, and lifetime periods ended July 31, 2006 for Institutional Class shares of Delaware High-Yield Opportunities Fund were +5.80%, +11.08%, and +7.22%, respectively. Institutional Class shares were first made available on December 30, 1996 and are available without sales or asset-based distribution charges only to certain eligible institutional accounts. An expense limitation was in effect for all classes of Delaware High-Yield Opportunities Fund during some periods shown. Performance would have been lower had the expense limitation not been in effect. The performance table does not reflect the deduction of taxes the shareholder would pay on Fund distributions or redemptions of Fund shares. 4 <page> Fund basics As of July 31, 2006 _______________________________________________________________________________ Fund objective _______________________________________________________________________________ The Fund seeks total return and, as a secondary objective, high current income. _______________________________________________________________________________ Total Fund net assets _______________________________________________________________________________ $111 million _______________________________________________________________________________ Number of holdings _______________________________________________________________________________ 178 _______________________________________________________________________________ Fund start date _______________________________________________________________________________ December 30, 1996 _______________________________________________________________________________ Your Fund manager _______________________________________________________________________________ Timothy L. Rabe, CFA, joined Delaware Investments in 2000. He is head of the high yield trading department responsible for investing strategy. Prior to joining Delaware Investments, Timothy L. Rabe was a high yield portfolio manager for Conseco Capital Management for five years. Prior to that, he worked as a tax analyst for the Northern Trust Company. He received a bachelor's degree in finance from the University of Illinois. _______________________________________________________________________________ Nasdaq symbols CUSIPs _______________________________________________________________________________ Class A DHOAX 245908876 Class B DHOBX 245908868 Class C DHOCX 245908850 Class R DHIRX 245908736 Institutional Class DHOIX 245908843 [DELAWARE PERFORMANCE GRAPH] Chart assumes $10,000 invested on December 30, 1996 and includes the effect of a 4.50% front-end sales charge and the reinvestment of all distributions. Performance of other Fund classes will vary due to different charges and expenses. Returns plotted on the chart were as of the last day of each month shown. The Bear Stearns High Yield Index is an unmanaged index that generally tracks the performance of high yield bonds. An index is unmanaged and does not incur the costs of operating a mutual fund, such as the costs of buying, selling, and holding securities. You cannot invest directly in an index. The performance graph does not reflect the deduction of taxes the shareholder would pay on Fund distributions or redemptions of Fund shares. An expense limitation was in effect for Class A shares of Delaware High-Yield Fund during the periods shown. Performance would have been lower had the expense limitation not been in effect. Past performance is not a guarantee of future results. 5 <page> Disclosure of Fund expenses For the period February 1, 2006 to July 31, 2006 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 period February 1, 2006 to July 31, 2006. 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 actual expenses shown in the table reflect fee waivers in effect. The expenses shown in the table assume reinvestment of all dividends and distributions. Delaware High-Yield Opportunities Fund Expense Analysis of an Investment of $1,000 _______________________________________________________________________________ Expenses Beginning Ending Paid During Account Account Annualized Period Value Value Expense 2/1/06 to 2/1/06 7/31/06 Ratios 7/31/06 * ________________________________________________________________________________ Actual Fund Return Class A $1,000.00 $1,035.00 1.13% $5.70 Class B 1,000.00 1,031.40 1.83% 9.22 Class C 1,000.00 1,031.40 1.83% 9.22 Class R 1,000.00 1,033.90 1.33% 6.71 Institutional Class 1,000.00 1,036.50 0.83% 4.19 ________________________________________________________________________________ Hypothetical 5% Return (5% return before expenses) Class A $1,000.00 $1,019.19 1.13% $5.66 Class B 1,000.00 1,015.72 1.83% 9.15 Class C 1,000.00 1,015.72 1.83% 9.15 Class R 1,000.00 1,018.20 1.33% 6.66 Institutional Class 1,000.00 1,020.68 0.83% 4.16 ________________________________________________________________________________ * "Expenses Paid During Period" are equal to the Fund's annualized expense ratio, multiplied by the average account value over the period, multiplied by 181/365 (to reflect the one-half year period). 6 <page> Sector allocation and credit rating breakdown Delaware High-Yield Opportunities Fund As of July 31, 2006 Sector designations may be different than the sector designations presented in other Fund materials. Percentage Sector of Net Assets ________________________________________________________________________________ Collateralized Bond Obligations 0.02% ________________________________________________________________________________ Commercial Mortgage-Backed Securities 0.72% ________________________________________________________________________________ Convertible Bonds 0.23% ________________________________________________________________________________ Corporate Bonds 92.24% Banking 0.55% Basic Industry 10.46% Brokerage 1.85% Capital Goods 5.92% Consumer Cyclical 8.38% Consumer Non-Cyclical 10.53% Energy 6.13% Finance & Investments 0.49% Media 9.15% Real Estate 1.86% Services Cyclical 12.83% Services Non-Cyclical 6.60% Technology & Electronics 2.35% Telecommunications 10.64% Utilities 4.50% ________________________________________________________________________________ Emerging Markets Bonds 1.24% ________________________________________________________________________________ Common Stock 1.10% ________________________________________________________________________________ Warrants 0.00% ________________________________________________________________________________ Repurchase Agreements 3.31% ________________________________________________________________________________ Total Market Value of Securities 98.86% ________________________________________________________________________________ Receivables and Other Assets Net of Liabilities 1.14% ________________________________________________________________________________ Total Net Assets 100.00% ________________________________________________________________________________ Credit Rating Breakdown (as a % of fixed income investments) ________________________________________________________________________________ AAA 4.44% AA 0.26% A 0.12% BBB 1.18% BB 20.20% B 57.58% CCC 13.43% C 0.01% D 0.54% NR 2.24% ________________________________________________________________________________ Total 100.00% ________________________________________________________________________________ 7 <page> Statement of net assets Delaware High-Yield Opportunities Fund July 31, 2006 Principal Market Amount Value (U.S. $) (U.S. $) ________________________________________________________________________________ Collateralized Bond Obligations - 0.02% ________________________________________________________________________________ #@=~ Merrill Lynch CBO VII Series 1997-C3A A 144A 5.824% 3/23/08 $ 142,871 $ 11,565 #@= South Street CBO Series 1999-1A A1 144A 7.16% 7/1/11 11,616 11,674 __________ Total Collateralized Bond Obligations (cost $92,904) 23,239 __________ ________________________________________________________________________________ Commercial Mortgage-Backed Securities - 0.72% ________________________________________________________________________________ # First Union National Bank Commercial Mortgage Series 2001-C2 L 144A 6.46% 1/12/43 800,000 799,197 __________ Total Commercial Mortgage-Backed Securities (cost $811,969) 799,197 __________ ________________________________________________________________________________ Convertible Bonds - 0.23% ________________________________________________________________________________ # Charter Communications 144A 5.875% 11/16/09, exercise price $2.42, expiration date 11/16/09 300,000 252,000 __________ Total Convertible Bonds (cost $290,075) 252,000 __________ ________________________________________________________________________________ Corporate Bonds - 92.24% ________________________________________________________________________________ Banking - 0.55% # iPayment 144A 9.75% 5/15/14 325,000 326,625 Western Financial Bank 9.625% 5/15/12 260,000 287,065 __________ 613,690 __________ Basic Industry - 10.46% Abitibi-Consolidated 6.95% 12/15/06 50,000 50,500 7.875% 8/1/09 375,000 363,750 AK Steel 7.875% 2/15/09 805,000 805,000 Bowater 9.50% 10/15/12 1,335,000 1,341,674 Donohue Forest Products 7.625% 5/15/07 550,000 554,125 Georgia-Pacific 9.50% 12/1/11 775,000 817,625 Gold Kist 10.25% 3/15/14 515,000 543,325 # Nell AF Sarl 144A 8.375% 8/15/15 825,000 805,406 NewPage 10.00% 5/1/12 610,000 635,925 Norske Skog Canada 8.625% 6/15/11 875,000 857,500 # Port Townsend Paper 144A 12.00% 4/15/11 910,000 778,050 Potlatch 13.00% 12/1/09 850,000 1,000,792 Rhodia 8.875% 6/1/11 600,000 613,500 ++ Solutia 6.72% 10/15/37 770,000 704,550 Tembec Industries 8.625% 6/30/09 1,405,000 762,213 # Verso Paper 144A 9.125% 8/1/14 475,000 477,375 Witco 6.875% 2/1/26 525,000 475,125 __________ 11,586,435 __________ Brokerage - 1.85% E Trade Financial 8.00% 6/15/11 695,000 717,588 LaBranche & Co. 9.50% 5/15/09 500,000 517,500 11.00% 5/15/12 760,000 813,200 __________ 2,048,288 __________ Capital Goods - 5.92% Armor Holdings 8.25% 8/15/13 825,000 866,250 # Compression Polymer 144A 10.50% 7/1/13 300,000 309,000 Graham Packaging 9.875% 10/15/14 600,000 586,500 Interface 10.375% 2/1/10 695,000 762,763 Interline Brands 8.125% 6/15/14 125,000 126,563 Intertape Polymer 8.50% 8/1/14 970,000 902,099 { Mueller Holdings 14.75% 4/15/14 829,000 708,795 { NTK Holdings 10.75% 3/1/14 710,000 500,550 # RBS Global & Rexnord 144A 9.50% 8/1/14 475,000 477,375 Solo Cup 8.50% 2/15/14 625,000 543,750 # TransDigm 144A 7.75% 7/15/14 100,000 100,250 Trimas 9.875% 6/15/12 730,000 677,075 __________ 6,560,970 __________ Consumer Cyclical - 8.38% Accuride 8.50% 2/1/15 600,000 561,000 # Baker & Taylor 144A 11.50% 7/1/13 450,000 452,250 Boyd Gaming 8.75% 4/15/12 775,000 813,750 Carrols 9.00% 1/15/13 150,000 149,250 Ford Motor Credit 7.375% 10/28/09 700,000 660,754 General Motors 8.375% 7/15/33 375,000 309,375 General Motors Acceptance Corporation 6.875% 9/15/11 925,000 896,618 8.00% 11/1/31 585,000 575,242 Landry's Restaurant 7.50% 12/15/14 550,000 512,875 Metaldyne 10.00% 11/1/13 1,005,000 967,312 Neiman Marcus 9.00% 10/15/15 485,000 513,494 # NPC International 144A 9.50% 5/1/14 395,000 381,175 O'Charleys 9.00% 11/1/13 775,000 794,375 # Uno Restaurant 144A 10.00% 2/15/11 450,000 349,875 8 Principal Market Amount Value (U.S. $) (U.S. $) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Consumer Cyclical (continued) Visteon 7.00% 3/10/14 $ 175,000 $ 143,500 8.25% 8/1/10 650,000 601,250 Warnaco 8.875% 6/15/13 590,000 605,488 ____________ 9,287,583 ____________ Consumer Non-Cyclical - 10.53% # Angiotech Pharmaceuticals 144A 7.75% 4/1/14 650,000 632,125 Biovail 7.875% 4/1/10 1,600,000 1,631,999 Constellation Brands 8.125% 1/15/12 500,000 517,500 Cott Beverages 8.00% 12/15/11 920,000 933,800 Dole Food 8.875% 3/15/11 625,000 587,500 # Healthsouth 144A 10.75% 6/15/16 750,000 720,000 Ingles Markets 8.875% 12/1/11 700,000 735,000 # Le-Natures 144A 10.00% 6/15/13 485,000 516,525 Marsh Supermarkets 8.875% 8/1/07 275,000 274,313 National Beef Packing 10.50% 8/1/11 825,000 860,063 # Penhall International 144A 12.00% 8/1/14 400,000 415,000 Pilgrim's Pride 9.625% 9/15/11 775,000 815,688 Pinnacle Foods 8.25% 12/1/13 575,000 566,375 Playtex Products 9.375% 6/1/11 915,000 959,605 # Reynolds American 144A 7.875% 5/15/09 350,000 364,904 True Temper Sports 8.375% 9/15/11 480,000 438,000 Warner Chilcott 8.75% 2/1/15 700,000 698,250 ____________ 11,666,647 ____________ Energy - 6.13% # Basic Energy Service 144A 7.125% 4/15/16 225,000 210,938 Bluewater Finance 10.25% 2/15/12 550,000 562,375 # Brigham Exploration 144A 9.625% 5/1/14 225,000 222,188 Compton Petroleum Finance 7.625% 12/1/13 325,000 314,438 Copano Energy 8.125% 3/1/16 225,000 227,250 El Paso Natural Gas 7.625% 8/1/10 310,000 316,975 # El Paso Performance Linked Trust 144A 7.75% 7/15/11 400,000 404,500 El Paso Production Holding 7.75% 6/1/13 700,000 714,874 # Hilcorp Energy 144A 9.00% 6/1/16 625,000 649,999 Inergy Finance 6.875% 12/15/14 425,000 402,688 8.25% 3/1/16 200,000 205,000 # MarkWest Energy 144A 8.50% 7/15/16 125,000 126,875 # PetroHawk Energy 144A 9.125% 7/15/13 800,000 821,999 ~ Secunda International 13.507% 9/1/12 570,000 599,213 Tennessee Gas Pipeline 8.375% 6/15/32 270,000 295,494 # VeraSun Energy 144A 9.875% 12/15/12 290,000 310,300 Whiting Petroleum 7.25% 5/1/13 410,000 408,975 ____________ 6,794,081 ____________ Finance & Investments - 0.49% FINOVA Group 7.50% 11/15/09 1,851,300 546,134 ____________ 546,134 ____________ Media - 9.15% } Adelphia Communications 8.125% 12/15/06 800,000 470,000 # Affinion Group 144A 11.50% 10/15/15 250,000 251,875 Charter Communications Holdings 11.125% 1/15/11 525,000 380,625 13.50% 1/15/11 1,465,000 1,120,725 ~# Cleveland Unlimited 144A 13.579% 12/15/10 325,000 347,750 CSC Holdings 8.125% 7/15/09 235,000 241,756 8.125% 8/15/09 900,000 925,875 Insight Midwest 10.50% 11/1/10 1,720,000 1,797,400 Lodgenet Entertainment 9.50% 6/15/13 1,115,000 1,193,050 Mediacom Capital 9.50% 1/15/13 1,250,000 1,271,875 RH Donnelley 8.875% 1/15/16 650,000 650,813 Sheridan Group 10.25% 8/15/11 350,000 355,250 Vertis 10.875% 6/15/09 215,000 214,194 Warner Music Group 7.375% 4/15/14 945,000 916,650 ____________ 10,137,838 ____________ Real Estate - 1.86% American Real Estate Partners 8.125% 6/1/12 1,025,000 1,045,500 BF Saul REIT 7.50% 3/1/14 845,000 870,350 # Rouse 144A 6.75% 5/1/13 150,000 149,261 ____________ 2,065,111 ____________ (continues) 9 Statement of net assets Delaware High-Yield Opportunities Fund Principal Market Amount Value (U.S. $) (U.S. $) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Services Cyclical - 12.83% Adesa 7.625% 6/15/12 $ 875,000 $ 864,063 American Airlines 7.377% 5/23/19 308,143 277,329 Corrections Corporation of America 7.50% 5/1/11 1,025,000 1,040,374 FTI Consulting 7.625% 6/15/13 675,000 685,125 # Galaxy Entertainment Finance 144A 9.875% 12/15/12 1,305,000 1,370,249 Gaylord Entertainment 8.00% 11/15/13 610,000 621,438 { H-Lines Finance Holding 11.00% 4/1/13 1,162,000 1,013,845 # Hertz 144A 8.875% 1/1/14 445,000 466,138 10.50% 1/1/16 180,000 196,650 Horizon Lines 9.00% 11/1/12 421,000 430,473 Kansas City Southern Railway 9.50% 10/1/08 775,000 815,688 # Knowledge Learning 144A 7.75% 2/1/15 580,000 536,500 Mandalay Resort Group 9.50% 8/1/08 915,000 969,900 OMI 7.625% 12/1/13 1,170,000 1,181,699 # Pokagon Gaming Authority 144A 10.375% 6/15/14 600,000 630,000 Royal Caribbean Cruises 7.25% 3/15/18 220,000 215,383 Seabulk International 9.50% 8/15/13 465,000 516,150 Stena 9.625% 12/1/12 675,000 732,375 { Town Sports International 11.00% 2/1/14 550,000 437,250 Wheeling Island Gaming 10.125% 12/15/09 1,175,000 1,219,062 ____________ 14,219,691 ____________ Services Non-Cyclical - 6.60% Aleris International 9.00% 11/15/14 520,000 587,600 Allied Waste North America 9.25% 9/1/12 675,000 720,563 Brickman Group 11.75% 12/15/09 290,000 313,200 Casella Waste Systems 9.75% 2/1/13 1,200,000 1,266,000 # CRC Health 144A 10.75% 2/1/16 805,000 821,100 Geo Subordinate 11.00% 5/15/12 805,000 813,050 US Oncology 10.75% 8/15/14 880,000 959,200 { Vanguard Health Holding 11.25% 10/1/15 1,680,000 1,197,000 # WCA Waste 144A 9.25% 6/15/14 625,000 639,063 ____________ 7,316,776 ____________ Technology & Electronics - 2.35% MagnaChip Semiconductor 8.00% 12/15/14 1,625,000 1,084,688 STATS ChipPAC 7.50% 7/19/10 650,000 635,375 Sungard Data Systems 10.25% 8/15/15 600,000 611,250 ~# UGS Capital II PIK 144A 10.38% 6/1/11 275,000 273,625 ____________ 2,604,938 ____________ Telecommunications - 10.64% ++ Allegiance Telecommunication 11.75% 2/15/08 255,000 113,475 American Tower 7.125% 10/15/12 665,000 671,650 Cincinnati Bell 8.375% 1/15/14 1,110,000 1,093,350 # Digicel Limited 144A 9.25% 9/1/12 700,000 733,250 # Hughes Network Systems 144A 9.50% 4/15/14 675,000 675,000 { Inmarsat Finance 10.375% 11/15/12 1,450,000 1,246,999 # Intelsat Bermuda 144A 11.25% 6/15/16 775,000 786,625 Intelsat Subsidiary Holding 8.625% 1/15/15 425,000 422,875 iPCS 11.50% 5/1/12 200,000 225,000 ~ IWO Holdings 9.257% 1/15/12 125,000 129,688 # Mobile Service Group 144A 9.75% 8/1/14 475,000 483,313 # Nordic Telephone Company Holdings 144A 8.875% 5/1/16 375,000 388,125 Rural Cellular 9.875% 2/1/10 600,000 624,000 ~ 10.899% 11/1/12 415,000 431,600 # Telcordia Technologies 144A 10.00% 3/15/13 900,000 724,500 Triton Communications 9.375% 2/1/11 670,000 494,125 ~ US LEC 13.62% 10/1/09 325,000 346,938 # Vimpel Communication 144A 8.25% 5/23/16 500,000 498,750 # Wind Acquisition 144A 10.75% 12/1/15 1,070,000 1,158,274 # Windstream 144A 8.625% 8/1/16 525,000 548,625 ____________ 11,796,162 ____________ Utilities - 4.50% ++~# Calpine 144A 9.90% 7/15/07 606,050 601,505 Elwood Energy 8.159% 7/5/26 759,656 831,357 Midwest Generation 8.30% 7/2/09 684,310 692,864 8.75% 5/1/34 645,000 689,344 10 Principal Market Amount Value (U.S. $) (U.S. $) ________________________________________________________________________________ Corporate Bonds (continued) ________________________________________________________________________________ Utilities (continued) Mirant Americas Generation 8.30% 5/1/11 $ 1,150,000 $ 1,126,999 Orion Power Holdings 12.00% 5/1/10 655,000 751,613 # Tenaska Alabama Partners 144A 7.00% 6/30/21 293,171 290,055 =++# USGen New England 144A 7.459% 1/2/15 5,630 3,800 ____________ 4,987,537 ____________ Total Corporate Bonds (cost $103,619,118) 102,231,881 ____________ ________________________________________________________________________________ Emerging Markets Bonds - 1.24% ________________________________________________________________________________ # C&M Finance 144A 8.10% 2/1/16 250,000 237,333 Republic of El Salvador 7.65% 6/15/35 555,000 562,770 Venezuela Government 6.00% 12/9/20 640,000 578,560 ____________ Total Emerging Markets Bonds (cost $1,389,568) 1,378,663 ____________ Number of Shares ________________________________________________________________________________ Common Stock - 1.10% ________________________________________________________________________________ @=+|| Avado Brands 906 852 B&G Foods 2,000 33,400 + Foster Wheeler 14,383 548,558 + Mirant 20,559 546,253 + Petrojarl ADR 1,491 9,477 + Petroleum Geo-Services ADR 1,491 82,109 ____________ Total Common Stock (cost $711,641) 1,220,649 ____________ ________________________________________________________________________________ Warrants - 0.00% ________________________________________________________________________________ +# Solutia 144A, exercise price $7.59, expiration date 7/15/09 450 0 ____________ Total Warrants (cost $38,281) 0 ____________ ________________________________________________________________________________ Repurchase Agreements - 3.31% ________________________________________________________________________________ With BNP Paribas 5.22% 8/1/06 (dated 7/31/06, to be repurchased at $1,941,281, collateralized by $1,181,000 U.S. Treasury Bills due 1/25/07, market value $1,152,264, $587,000 U.S. Treasury Notes 3.375% due 9/15/09, market value $567,987 and $246,000 U.S. Treasury Notes 6.00% due 8/15/09, market value $259,953) 1,941,000 1,941,000 With Cantor Fitzgerald 5.22% 8/1/06 (dated 7/31/06, to be repurchased at $984,143, collateralized by $148,000 U.S. Treasury Notes 3.00% due 2/15/09, market value $142,879, $111,000 U.S. Treasury Notes 3.625% due 7/15/09, market value $107,600, $246,000 U.S. Treasury Notes 3.875% due 5/15/09, market value $241,168, $246,000 U.S. Treasury Notes 5.50% due 5/15/09, market value $252,589 and $246,000 U.S. Treasury Notes 6.00% due 8/15/09, market value $259,953) 984,000 984,000 With UBS Warburg 5.20% 8/1/06 (dated 7/31/06, to be repurchased at $738,107, collateralized by $768,000 U.S. Treasury Notes 3.875% due 5/15/09, market value $753,158) 738,000 738,000 ____________ Total Repurchase Agreements (cost $3,663,000) 3,663,000 ____________ (continues) 11 Statement of net assets Delaware High-Yield Opportunities Fund ________________________________________________________________________________ ________________________________________________________________________________ Total Market Value of Securities - 98.86% (cost $110,616,556) $109,568,629 Receivables and Other Assets Net of Liabilities - 1.14% 1,259,520 ____________ Net Assets Applicable to 25,997,878 Shares Outstanding - 100.00% $110,828,149 ____________ Net Asset Value - Delaware High-Yield Opportunities Fund Class A ($63,405,416 / 14,874,226 Shares) $4.26 _____ Net Asset Value - Delaware High-Yield Opportunities Fund Class B ($13,597,212 / 3,191,301 Shares) $4.26 _____ Net Asset Value - Delaware High-Yield Opportunities Fund Class C ($16,285,008 / 3,818,693 Shares) $4.26 _____ Net Asset Value - Delaware High-Yield Opportunities Fund Class R ($3,703,449 / 867,256 Shares) $4.27 _____ Net Asset Value - Delaware High-Yield Opportunities Fund Institutional Class ($13,837,064 / 3,246,402 Shares) $4.26 _____ Components of Net Assets at July 31, 2006: Shares of beneficial interest (unlimited authorization - no par) $116,782,740 Distributions in excess of net investment income (59) Accumulated net realized loss on investments (4,906,605) Net unrealized depreciation of investments (1,047,927) ____________ Total net assets $110,828,149 ____________ + Non-income producing security for the year ended July 31, 2006. ++ Non-income producing security. Security is currently in default. ~ Variable rate security. The interest rate shown is the rate as of July 31, 2006. # Security exempt from registration under Rule 144A of the Securities Act of 1933, as amended. At July 31, 2006, the aggregate amount of Rule 144A securities equaled $23,738,536, which represented 21.42% of the Fund's net assets. See Note 7 in "Notes to Financial Statements." || Restricted Security. Investment in a security not registered under the Securities Act of 1933, as amended. This security has certain restrictions on resale which may limit its liquidity. At July 31, 2006, the aggregate amount of the restricted security equaled $852 or 0.00% of the Fund's net assets. See Note 7 in "Notes to Financial Statements." { Step coupon bond. Indicates security that has a zero coupon that remains in effect until a predetermined date at which time the stated interest rate becomes effective. = Security is being fair valued in accordance with the Fund's fair valuation policy. At July 31, 2006, the aggregate amount of fair valued securities equaled $27,891, which represented 0.03% of the Fund's net assets. See Note 1 in "Notes to Financial Statements." @ Illiquid security. At July 31, 2006, the aggregate amount of illiquid securities equaled $24,091, which represented 0.02% of the Fund's net assets. See Note 7 in "Notes to Financial Statements." } Security is currently in default. The issue has missed the maturity date. Bankruptcy proceedings are in the process to determine distribution of assets. The date listed is the estimate of when the proceedings will be finalized. Summary of Abbreviations: ADR - American Depositary Receipt CBO - Collateralized Bond Obligation PIK - Pay-in-Kind REIT - Real Estate Investment Trust Net Asset Value and Offering Price per Share - Delaware High-Yield Opportunities Fund Net asset value Class A (A) $4.26 Sales charge (4.50% of offering price) (B) 0.20 _____ Offering price $4.46 _____ (A) Net asset value per share, as illustrated, is the amount which would be paid upon redemption or repurchase of shares. (B) See the current prospectus for purchases of $100,000 or more. See accompanying notes 12 Statement of operations Delaware High-Yield Opportunities Fund Year Ended July 31, 2006 Investment Income: Interest $10,023,927 Dividends 14,752 $10,038,679 ___________ ___________ Expenses: Management fees 763,089 Distribution expenses - Class A 215,503 Distribution expenses - Class B 151,683 Distribution expenses - Class C 169,256 Distribution expenses - Class R 17,146 Dividend disbursing and transfer agent fees and expenses 207,874 Registration fees 63,477 Accounting and administration expenses 47,336 Legal and professional fees 25,689 Reports and statements to shareholders 25,620 Custodian fees 10,484 Trustees' fees 6,227 Pricing fees 5,306 Insurance fees 3,094 Taxes (other than taxes on income) 603 Other 7,364 1,719,751 ___________ Less expenses absorbed or waived (190,468) Less waiver of distribution expenses - Class R (2,858) Less expense paid indirectly (961) ___________ Total operating expenses 1,525,464 ___________ Net Investment Income 8,513,215 ___________ Net Realized and Unrealized Loss on Investments: Net realized loss on investments (47,672) Net change in unrealized appreciation/depreciation of investments (2,476,130) ___________ Net Realized and Unrealized Loss on Investments (2,523,802) ___________ Net Increase in Net Assets Resulting from Operations $ 5,989,413 ___________ See accompanying notes 13 Statements of changes in net assets Delaware High-Yield Opportunities Fund Year Ended 7/31/06 7/31/05 Increase (Decrease) in Net Assets from Operations: Net investment income $ 8,513,215 $ 6,467,649 Net realized gain (loss) on investments (47,672) 3,043,673 Net change in unrealized appreciation/depreciation of investments (2,476,130) 637,493 ____________ ____________ Net increase in net assets resulting from operations 5,989,413 10,148,815 ____________ ____________ Dividends and Distributions to Shareholders from: Net investment income: Class A (5,485,597) (4,849,108) Class B (1,054,790) (1,128,412) Class C (1,177,168) (933,276) Class R (214,464) (46,738) Institutional Class (844,522) (281,747) ____________ ____________ (8,776,541) (7,239,281) ____________ ____________ Capital Share Transactions: Proceeds from shares sold: Class A 34,354,450 70,584,839 Class B 2,092,236 5,349,318 Class C 5,268,964 12,078,605 Class R 2,306,896 2,031,372 Institutional Class 6,327,418 6,748,592 Net asset value of shares issued upon reinvestment of dividends and distributions: Class A 3,905,915 3,385,760 Class B 449,109 467,373 Class C 623,802 533,685 Class R 210,938 43,848 Institutional Class 644,516 242,707 ____________ ____________ 56,184,244 101,466,099 ____________ ____________ Cost of shares repurchased: Class A (56,093,384) (37,336,171) Class B (5,212,040) (4,728,835) Class C (6,694,409) (4,258,285) Class R (787,376) (66,598) Institutional Class (865,281) (251,115) ____________ ____________ (69,652,490) (46,641,004) ____________ ____________ Increase (decrease) in net assets derived from capital share transactions (13,468,246) 54,825,095 ____________ ____________ Net Increase (Decrease) in Net Assets (16,255,374) 57,734,629 Net Assets: Beginning of year 127,083,523 69,348,894 ____________ ____________ End of year (including distributions in excess of net investment income of $59 $110,828,149 $127,083,523 ____________ ____________ and $59, respectively) See accompanying notes 14 Financial highlights Delaware High-Yield Opportunities Fund Class A Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended ________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 _____________________________________________________________________________________________________________________________ Net asset value, beginning of period $4.360 $4.210 $3.970 $3.420 $3.950 Income (loss) from investment operations: Net investment income (1) 0.319 0.292 0.335 0.377 0.344 Net realized and unrealized gain (loss) on investments (0.090) 0.184 0.243 0.532 (0.488) ______ ______ ______ ______ ______ Total from investment operations 0.229 0.476 0.578 0.909 (0.144) ______ ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.329) (0.326) (0.338) (0.359) (0.386) ______ ______ ______ ______ ______ Total dividends and distributions (0.329) (0.326) (0.338) (0.359) (0.386) ______ ______ ______ ______ ______ Net asset value, end of period $4.260 $4.360 $4.210 $3.970 $3.420 ______ ______ ______ ______ ______ Total return (2) 5.49% 11.61% 14.97% 28.02% (3.87%) Ratios and supplemental data: Net assets, end of period (000 omitted) $63,405 $82,988 $44,428 $29,385 $14,767 Ratio of expenses to average net assets 1.13% 1.16% 1.13% 1.13% 1.13% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.29% 1.28% 1.38% 1.56% 1.44% Ratio of net investment income to average net assets 7.42% 6.68% 8.05% 10.36% 9.05% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 7.26% 6.56% 7.80% 9.93% 8.74% Portfolio turnover 151% 229% 644% 832% 609% _____________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2004, 2003, and 2002. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager. Performance would have been lower had the expense limitation not been in effect. See accompanying notes (continues) 15 Financial highlights Delaware High-Yield Opportunities Fund Class B Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ______________________________________________________________________________________________________________________________ Net asset value, beginning of period $4.360 $4.210 $3.970 $3.420 $3.960 Income (loss) from investment operations: Net investment income (1) 0.289 0.262 0.305 0.352 0.317 Net realized and unrealized gain (loss) on investments (0.090) 0.184 0.244 0.532 (0.498) ______ ______ ______ ______ ______ Total from investment operations 0.199 0.446 0.549 0.884 (0.181) ______ ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.299) (0.296) (0.309) (0.334) (0.359) ______ ______ ______ ______ ______ Total dividends and distributions (0.299) (0.296) (0.309) (0.334) (0.359) ______ ______ ______ ______ ______ Net asset value, end of period $4.260 $4.360 $4.210 $3.970 $3.420 ______ ______ ______ ______ ______ Total return (2) 4.75% 10.85% 14.19% 27.14% (4.80%) Ratios and supplemental data: Net assets, end of period (000 omitted) $13,597 $16,661 $15,015 $15,464 $9,435 Ratio of expenses to average net assets 1.83% 1.86% 1.83% 1.83% 1.83% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.99% 1.98% 2.08% 2.26% 2.14% Ratio of net investment income to average net assets 6.72% 5.98% 7.35% 9.66% 8.35% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 6.56% 5.86% 7.10% 9.23% 8.04% Portfolio turnover 151% 229% 644% 832% 609% ______________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2004, 2003, and 2002. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager. Performance would have been lower had the expense limitation not been in effect. See accompanying notes 16 Delaware High-Yield Opportunities Fund Class C Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ______________________________________________________________________________________________________________________________ Net asset value, beginning of period $4.360 $4.210 $3.970 $3.420 $3.960 Income (loss) from investment operations: Net investment income (1) 0.289 0.262 0.305 0.352 0.317 Net realized and unrealized gain (loss) on investments (0.090) 0.184 0.243 0.532 (0.498) ______ ______ ______ ______ ______ Total from investment operations 0.199 0.446 0.548 0.884 (0.181) ______ ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.299) (0.296) (0.308) (0.334) (0.359) ______ ______ ______ ______ ______ Total dividends and distributions (0.299) (0.296) (0.308) (0.334) (0.359) ______ ______ ______ ______ ______ Net asset value, end of period $4.260 $4.360 $4.210 $3.970 $3.420 ______ ______ ______ ______ ______ Total return (2) 4.75% 10.84% 14.16% 27.13% (4.80%) Ratios and supplemental data: Net assets, end of period (000 omitted) $16,285 $17,474 $8,824 $5,916 $2,905 Ratio of expenses to average net assets 1.83% 1.86% 1.83% 1.83% 1.83% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.99% 1.98% 2.08% 2.26% 2.14% Ratio of net investment income to average net assets 6.72% 5.98% 7.35% 9.66% 8.35% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 6.56% 5.86% 7.10% 9.23% 8.04% Portfolio turnover 151% 229% 644% 832% 609% ______________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2004, 2003, and 2002. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value and does not reflect the impact of a sales charge. Total investment return reflects waivers and payment of fees by the manager. Performance would have been lower had the expense limitation not been in effect. See accompanying notes (continues) 17 Financial highlights Delaware High-Yield Opportunities Fund Class R Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended 6/2/03 (1) ________________________________ to 7/31/06 7/31/05 7/31/04 7/31/03 _____________________________________________________________________________________________________________ Net asset value, beginning of period $4.370 $4.210 $3.970 $3.960 Income (loss) from investment operations: Net investment income (2) 0.310 0.279 0.322 0.050 Net realized and unrealized gain (loss) on investments (0.090) 0.194 0.242 0.010 ______ ______ ______ ______ Total from investment operations 0.220 0.473 0.564 0.060 ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.320) (0.313) (0.324) (0.050) ______ ______ ______ ______ Total dividends and distributions (0.320) (0.313) (0.324) (0.050) ______ ______ ______ ______ Net asset value, end of period $4.270 $4.370 $4.210 $3.970 ______ ______ ______ ______ Total return (3) 5.27% 11.52% 14.55% 1.49% Ratios and supplemental data: Net assets, end of period (000 omitted) $3,704 $2,030 $16 $- Ratio of expenses to average net assets 1.33% 1.46% 1.43% 1.43% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 1.59% 1.58% 1.68% 2.25% Ratio of net investment income to average net assets 7.22% 6.38% 7.75% 9.57% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 6.96% 6.26% 7.50% 8.75% Portfolio turnover 151% 229% 644% 832% _____________________________________________________________________________________________________________ (1) Date of commencement of operations. Ratios have been annualized and total return has not been annualized. (2) The average shares outstanding method has been applied for per share information for the year ended July 31, 2004 and the period ended July 31, 2003. (3) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value. Total investment return reflects waivers and payment of fees by the manager and distributor, as applicable. Performance would have been lower had the expense limitation not been in effect. See accompanying notes 18 Delaware High-Yield Opportunities Fund Institutional Class Selected data for each share of the Fund outstanding throughout each period were as follows: Year Ended _________________________________________________________ 7/31/06 7/31/05 7/31/04 7/31/03 7/31/02 ______________________________________________________________________________________________________________________________ Net asset value, beginning of period $4.360 $4.210 $3.970 $3.420 $3.950 Income (loss) from investment operations: Net investment income (1) 0.332 0.306 0.347 0.388 0.355 Net realized and unrealized gain (loss) on investments (0.090) 0.184 0.244 0.532 (0.487) ______ ______ ______ ______ ______ Total from investment operations 0.242 0.490 0.591 0.920 (0.132) ______ ______ ______ ______ ______ Less dividends and distributions from: Net investment income (0.342) (0.340) (0.351) (0.370) (0.398) ______ ______ ______ ______ ______ Total dividends and distributions (0.342) (0.340) (0.351) (0.370) (0.398) ______ ______ ______ ______ ______ Net asset value, end of period $4.260 $4.360 $4.210 $3.970 $3.420 ______ ______ ______ ______ ______ Total return (2) 5.80% 11.96% 15.33% 28.40% (3.57%) Ratios and supplemental data: Net assets, end of period (000 omitted) $13,837 $7,931 $1,066 $3,316 $2,569 Ratio of expenses to average net assets 0.83% 0.86% 0.83% 0.83% 0.83% Ratio of expenses to average net assets prior to expense limitation and expenses paid indirectly 0.99% 0.98% 1.08% 1.26% 1.14% Ratio of net investment income to average net assets 7.72% 6.98% 8.35% 10.66% 9.35% Ratio of net investment income to average net assets prior to expense limitation and expenses paid indirectly 7.56% 6.86% 8.10% 10.23% 9.04% Portfolio turnover 151% 229% 644% 832% 609% ______________________________________________________________________________________________________________________________ (1) The average shares outstanding method has been applied for per share information for the years ended July 31, 2004, 2003, and 2002. (2) Total investment return is based on the change in net asset value of a share during the period and assumes reinvestment of dividends and distributions at net asset value. Total investment return reflects waivers and payment of fees by the manager. Performance would have been lower had the expense limitation not been in effect. See accompanying notes 19 Notes to financial statements Delaware High-Yield Opportunities Fund July 31, 2006 Delaware Group Income Funds (the "Trust") is organized as a Delaware statutory trust and offers four Series: Delaware Corporate Bond Fund, Delaware Delchester Fund, Delaware Extended Duration Bond Fund and Delaware High-Yield Opportunities Fund. These financial statements and the related notes pertain to Delaware High-Yield Opportunities Fund (the "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, Class R and Institutional Class shares. Class A shares are sold with a front-end sales charge of up to 4.50%. Class A share purchases of $1,000,000 or more will incur a contingent deferred sales charge of up to 1% if redeemed during the first two years, provided that, a financial advisor was paid commission on the purchase of those shares. Class B shares are sold with a contingent deferred sales charge that declines from 4% to zero depending upon the period of time the shares are held. Class B shares will automatically convert to Class A shares on a quarterly basis approximately eight years after purchase. Class C shares are sold with a contingent deferred sales charge of 1%, if redeemed during the first 12 months. Class R and Institutional Class shares are not subject to a sales charge and are offered for sale exclusively to a limited group of investors. The investment objective of the Fund is to seek total return and, as a secondary objective, high current income. 1. Significant Accounting Policies The following accounting policies are in accordance with U.S. generally accepted accounting principles and are consistently followed by the Fund. Security Valuation - Equity securities, except those traded on the Nasdaq Stock Market, Inc. (Nasdaq), are valued at the last quoted sales price as of the time of the regular close of the New York Stock Exchange (NYSE) on the valuation date. Securities traded on the Nasdaq are valued in accordance with the Nasdaq Official Closing Price, which may not be the last sales price. If on a particular day an equity security does not trade, then the mean between the bid and asked prices will be used. Long-term debt securities are valued by an independent pricing service and such prices are believed to reflect the fair value of such securities. Short-term debt securities having less than 60 days to maturity are valued at amortized cost, which approximates market value. Other securities and assets for which market quotations are not readily available are valued at fair value as determined in good faith under the direction of the Fund's Board of Trustees. In determining whether market quotations are readily available or fair valuation will be used, various factors will be taken into consideration, such as market closures, or with respect to foreign securities, aftermarket trading or significant events after local market trading (e.g., government actions or pronouncements, trading volume or volatility on markets, exchanges among dealers, or news events). Federal Income Taxes - The Fund intends to continue to qualify for federal income tax purposes as a regulated investment company and make the requisite distributions to shareholders. Accordingly, no provision for federal income taxes has been made in the financial statements. On July 13, 2006, the Financial Accounting Standards Board (FASB) released FASB Interpretation No. 48 "Accounting for Uncertainty in Income Taxes" (FIN 48). FIN 48 provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements. FIN 48 requires the evaluation of 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 would be recorded as a tax benefit or expense in the current year. Adoption of FIN 48 is required for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. Although the Fund's tax positions are currently being evaluated, management does not expect the adoption of FIN 48 to have a material impact on the Fund's financial statements. Class Accounting - Investment income and common expenses are allocated to the 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. Repurchase Agreements - The Fund may invest in a pooled cash account along with other members of the Delaware Investments(R) Family of Funds pursuant to an exemptive order issued by the Securities and Exchange Commission. The aggregate daily balance of the pooled cash account is invested in repurchase agreements secured by obligations of the U.S. government. The respective collateral is held by the Fund's custodian bank until the maturity of the respective repurchase agreements. Each repurchase agreement is at least 102% collateralized. However, in the event of default or bankruptcy by the counterparty to the agreement, realization of the collateral may be subject to legal proceedings. Use of Estimates - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of 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. Other - Expenses common to all funds within the Delaware Investments Family of Funds are allocated amongst the 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. Dividend income is recorded on the ex-dividend date and interest income is recorded on the accrual basis. Discounts and premiums are amortized to interest income over the lives of the respective securities. Realized gains (losses) on paydowns of mortgage- and asset-backed securities are classified as interest income. 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. The Fund receives earnings credits from its custodian when positive cash balances are maintained, which are used to offset custody fees. The expense paid under the above arrangement is included in custodian fees on the Statement of Operations with the corresponding expense offset shown as "expense paid indirectly." 20 <page> 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 0.65% on the first $500 million of average daily net assets of the Fund, 0.60% on the next $500 million, 0.55% on the next $1.5 billion, and 0.50% on average daily net assets in excess of $2.5 billion. DMC has contractually agreed to waive that portion, if any, of its management fee and reimburse the Fund to the extent necessary to ensure that annual operating expenses, exclusive of taxes, interest, brokerage commissions, distribution fees, certain insurance costs and extraordinary expenses, do not exceed 0.83% of average daily net assets of the Fund through November 30, 2006. Delaware Service Company, Inc. (DSC), an affiliate of DMC, provides accounting, administration, dividend disbursing and transfer agent services. The Fund pays DSC a monthly fee computed at the annual rate of 0.04% of the Fund's average daily net assets for accounting and administration services. The Fund pays DSC a monthly fee based on the number of shareholder accounts for dividend disbursing and transfer agent services. Pursuant to the 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 Class A shares, 1.00% of the average daily net assets of the Class B and C shares, and 0.60% of the average daily net assets of Class R shares. DDLP has contracted to limit distribution and service fees through November 30, 2006 in order to prevent distribution and service fees of Class R shares from exceeding 0.50% of average daily net assets. Institutional Class shares pay no distribution and service expenses. At July 31, 2006, the Fund had liabilities payable to affiliates as follows Investment management fee payable to DMC $34,037 Dividend disbursing, transfer agent, accounting and administration fees and other expenses payable to DSC 21,651 Distribution fee payable to DDLP 42,435 Other expenses payable to DMC and affiliates* 3,249 * 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 services, including internal legal services provided to the Fund by DMC employees. For the year ended July 31, 2006, the Fund was charged $6,762 for internal legal services provided by DMC. For the year ended July 31, 2006, DDLP earned $30,988 for commissions on sales of the Fund's Class A shares. For the year ended July 31, 2006, DDLP received gross contingent deferred sales charge commissions of $5,769, $47,652 and $5,948 on redemption of the Fund's Class A, 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. 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 For the year ended July 31, 2006, the Fund made purchases of $170,947,619 and sales of $181,531,401 of investment securities other than short-term investments. At July 31, 2006, the cost of investments for federal income tax purposes was $111,126,603. At July 31, 2006, net unrealized depreciation was $1,557,974, of which $1,981,514 related to unrealized appreciation of investments and $3,539,488 related to unrealized depreciation of investments. 4. Dividend and Distribution Information Income and long-term capital gain distributions are determined in accordance with federal income tax regulations, which may differ from U.S. generally accepted accounting principles. Additionally, net short-term gains on sales of investment securities are treated as ordinary income for federal income tax purposes. The tax character of dividends and distributions paid during the years ended July 31, 2006 and 2005 was as follows: Year Ended 7/31/06 7/31/05 _______ _______ Ordinary income $8,776,541 $7,239,281 As of July 31, 2006, the components of net assets on a tax basis were as follows: Shares of beneficial interest $116,782,740 Other temporary differences (59) Capital loss carryforwards (4,396,558) Unrealized depreciation of investments (1,557,974) ____________ Net assets $110,828,149 ____________ The differences between book basis and tax basis components of net assets are primarily attributable to tax deferral of losses on wash sales and tax treatment of market discount and premium on debt instruments. For financial reporting purposes, capital accounts are adjusted to reflect the tax character of permanent book/tax differences. Reclassifications are primarily due to tax treatment of gain (loss) on paydowns of mortgage- and asset-backed securities and market discount and premium on certain debt instruments. Results of operations and net assets were not affected by these reclassifications. For the year ended July 31, 2006, the Fund recorded the following reclassifications. Undistributed net investment income $263,326 Accumulated net realized gain (loss) (263,326) For federal income tax purposes, capital loss carryforwards may be carried forward and applied against future capital gains. Capital loss carryforwards remaining at July 31, 2006 will expire as follows: $3,971,857 expires in 2010 and $424,701 expires in 2014. (continues) 21 <page> Notes to financial statements Delaware High-Yield Opportunities Fund 5. Capital Shares Transactions in capital shares were as follows: Year Ended 7/31/06 7/31/05 Shares sold: Class A 8,017,272 16,251,597 Class B 486,900 1,232,222 Class C 1,225,582 2,768,340 Class R 536,316 466,102 Institutional Class 1,478,455 1,566,148 Shares issued upon reinvestment of dividends and distributions: Class A 912,687 779,426 Class B 104,992 107,654 Class C 145,725 122,839 Class R 49,237 10,143 Institutional Class 150,666 55,865 ___________ ___________ 13,107,832 23,360,336 ___________ ___________ Shares repurchased: Class A (13,077,892) (8,568,072) Class B (1,220,940) (1,088,072) Class C (1,556,900) (983,589) Class R (183,002) (15,381) Institutional Class (201,040) (57,219) ___________ ___________ (16,239,774) (10,712,333) ___________ ___________ Net increase (decrease) (3,131,942) 12,648,003 ___________ ___________ For the years ended July 31, 2006 and 2005, 87,453 Class B shares were converted to 87,415 Class A shares valued at $373,970 and 84,575 Class B shares were converted to 84,507 Class A shares valued at $368,395, respectively. The respective amounts are included in Class B redemptions and Class A subscriptions in the table above and the Statements of Changes in Net Assets. 6. Line of Credit The Fund, along with certain other funds in the Delaware Investments(R) Family of Funds (the "Participants"), participates in a $225,000,000 revolving line of credit facility to be used for temporary or emergency purposes as an additional source of liquidity to fund redemptions of investor shares. The Participants are charged an annual commitment fee, which is allocated across the Participants on the basis of each funds' allocation of the entire facility. The Participants may borrow up to a maximum of one third of their net assets under the agreement. The Fund had no amounts outstanding as of July 31, 2006, or at any time during the year. 7. Credit and Market Risk The Fund invests a portion of its assets in high yield fixed income securities, which carry ratings of BB or lower by Standard & Poor's Ratings Group and/or Ba or lower by Moody's Investors Service, Inc. Investments in these higher yielding securities are generally accompanied by a greater degree of credit risk than higher rated securities. Additionally, lower rated securities may be more susceptible to adverse economic and competitive industry conditions than investment grade securities. The Fund may invest up to 15% of its total 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, 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 of Trustees 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. Rule 144A and illiquid securities have been identified on the Statement of Net Assets. 8. 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. 9. Tax Information (Unaudited) The information set forth below is for the Fund's fiscal year as required by federal laws. Shareholders, however, must report distributions on a calendar year basis for income tax purposes, which may include distributions for portions of two fiscal years of a fund. Accordingly, the information needed by shareholders for income tax purposes will be sent to them in January of each year. Please consult your tax advisor for proper treatment of this information. For the fiscal year ended July 31, 2006, the Fund designates distributions paid during the year as follows: (A) (B) Long-Term Capital Ordinary Income Total Gain Distributions Distributions Distributions (Tax Basis) (Tax Basis)* (Tax Basis) ____________________ _________________ _______________ 0% 100% 100% (A) and (B) are based on a percentage of the Fund's total distributions. *For the fiscal year ended July 31, 2006, certain interest income paid by the Fund, determined to be Qualified Interest Income and Short-Term Capital Gains, may be subject to relief from U.S. withholding for foreign shareholders, as provided by the American Jobs Creation Act of 2004. For the fiscal year ended July 31, 2006, the Delaware High-Yield Opportunities Fund has designated a maximum distribution of $8,763,973 of Qualified Interest Income. 22 <page> Report of independent registered public accounting firm To the Shareholders and Board of Trustees Delaware Group Income Funds - Delaware High-Yield Opportunities Fund We have audited the accompanying statement of net assets of Delaware High-Yield Opportunities Fund (one of the series constituting Delaware Group Income Funds) (the "Fund") as of July 31, 2006, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of July 31, 2006, by correspondence with the custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of the Delaware High-Yield Opportunities Fund series of Delaware Group Income Funds at July 31, 2006, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ Ernst & Young LLP Philadelphia, Pennsylvania September 13, 2006 23 <page> Other Fund information Delaware High-Yield Opportunities Fund Board Consideration of Delaware High-Yield Opportunities Fund Investment Advisory Agreement At a meeting held on May 17-18, 2006 (the "Annual Meeting"), the Board of Trustees, including a majority of disinterested or independent Trustees, approved the renewal of the Investment Advisory Agreement for the Delaware High-Yield Opportunities Fund (the "Fund"). In making its decision, the Board considered information furnished throughout the year at regular Board meetings, as well as information prepared specifically in connection with the Annual Meeting. Information furnished and discussed throughout the year included reports detailing Fund performance, investment strategies, expenses, compliance matters and other services provided by Delaware Management Company ("DMC"), the investment advisor. Information furnished specifically in connection with the Annual Meeting included materials provided by DMC and its affiliates ("Delaware Investments") concerning, among other things, the level of services provided to the Fund, the costs of such services to the Fund, economies of scale and the financial condition and profitability of Delaware Investments. In addition, in connection with the Annual Meeting, the Board considered independent historical and comparative reports prepared by Lipper Inc. ("Lipper"), an independent statistical compilation organization. The Board also considered industry comparative information presented by representatives from Lipper. The Lipper reports compared the Fund's investment performance and expenses with those of other comparable mutual funds. The Board also received certain supplemental information regarding management's policy with respect to advisory fee levels and its philosophy with respect to breakpoints; the structure of portfolio manager compensation; and any constraints or limitations on the availability of securities in certain investment styles which might inhibit DMC's ability to fully invest in accordance with Fund policies. In considering such materials, the independent Trustees received assistance and advice from and met separately with independent counsel and representatives from Lipper. At the meeting with representatives from Lipper, Mr. Driscoll, then Chairman of the Delaware Investments(R) Family of Funds, and Chairman and Chief Executive Officer of the investment advisor, was present to respond to questions by Lipper and the independent Trustees. While the Board considered the Investment Advisory Agreements for all of the funds in the Delaware Investments Family of Funds at the same Board meeting, information was provided and considered by the Board for each fund individually. In approving the continuance of the Investment Advisory Agreement for the Fund, the Board, including a majority of independent Trustees, determined that the existing advisory fee structure was fair and reasonable and that the continuance of the Investment Advisory Agreement was in the best interests of the Fund and its shareholders. While attention was given to all information furnished, the following discusses the primary factors relevant to the Board's deliberations and determination, including those relating to the selection of the investment advisor and the approval of the advisory fee. Nature, Extent and Quality of Service. Consideration was given to the services provided by Delaware Investments to the Fund and its shareholders. In reviewing the nature, extent and quality of services, the Board emphasized reports furnished to it throughout the year at regular Board meetings covering matters such as the relative performance of the Fund, compliance of portfolio managers with the investment policies, strategies and restrictions for the Fund, the compliance of management personnel with the Code of Ethics adopted throughout the Delaware Investments Family of Funds complex, the adherence to fair value pricing procedures as established by the Board and the accuracy of net asset value calculations. The Board noted that it was pleased with the current staffing of the Fund's investment advisor and management's efforts to strengthen and deepen portfolio management teams during the past year, the emphasis on research and the compensation system for advisory personnel. Favorable consideration was given to DMC's efforts to maintain, and in some instances increase, financial and human resources committed to fund matters. Other factors taken into account by the Board were Delaware Investments' preparedness for, and response to, legal and regulatory matters. The Board also considered the transfer agent and shareholder services provided to Fund shareholders by Delaware Investments' affiliate, Delaware Service Company, Inc. ("DSC"), noting DSC's commitment to maintain a high level of service in keeping with its past receipt of the DALBAR Pyramid Award, and the continuing expenditures by Delaware Investments to improve the delivery of shareholder services. Additionally, the Board noted the extent of benefits provided to Fund shareholders for being part of the Delaware Investments Family of Funds, including the privilege to exchange investments between the same class of shares of funds without a sales charge, the ability to reinvest Fund dividends into other funds and the privilege to combine holdings in other funds to obtain a reduced sales charge. The Board was satisfied with the nature, extent and quality of the overall services provided by Delaware Investments. Investment Performance. The Board considered the investment performance of DMC and the Fund. The Board was pleased with DMC's investment performance. The Board placed significant emphasis on the investment performance of the Fund in view of its importance to shareholders. While consideration was given to performance reports and discussions with portfolio managers at Board meetings throughout the year, particular weight was given to the Lipper reports furnished for the Annual Meeting. The Lipper reports prepared for the Fund showed the investment performance of its Class A shares in comparison to a group of similar funds as selected by Lipper (the "Performance Universe"). A fund with the best performance is ranked first, and a fund with the poorest performance is ranked last. The highest/best performing 25% of funds in the Performance Universe make up the first quartile; the next 25% - the second quartile; the next 25% - the third quartile; and the poorest/worst performing 25% of funds in the Performance Universe make up the fourth quartile. Comparative annualized performance for the Fund was shown for the past one, three and five year periods ended January 31, 2006. The Board noted its objective that the Fund's performance for the periods considered be at or above the median of its Performance Universe. The following paragraph summarizes the performance results for the Fund and the Board's view of such performance. The Performance Universe for the Fund consisted of the Fund and all retail and institutional high current yield funds as selected by Lipper. The Lipper report comparison showed that the Fund's total return for the one and five year periods was in the second quartile of such Performance Universe. The report further showed that the Fund's total return for the three year period was in the first quartile. The Board was satisfied with such performance. 24 <page> Other Fund information Delaware High-Yield Opportunities Fund Board Consideration of Delaware High-Yield Opportunities Fund Investment Advisory Agreement (continued) Comparative Expenses. The Board considered expense data for the Delaware Investments(R) Family of Funds. Management provided the Board with information on pricing levels and fee structures for the Fund. The Board focused particularly on the comparative analysis of the management fees and total expense ratios of the Fund and the management fees and expense ratios of a group of similar funds as selected by Lipper (the "Expense Group"). In reviewing comparative costs, the Fund's contractual management fee and the actual management fee incurred by the Fund were compared with the contractual management fees (assuming all funds in the Expense Group were similar in size to the Fund) and actual management fees (as reported by each fund) of other funds within the Expense Group, taking into effect any applicable breakpoints and fee waivers. The Fund's total expenses were also compared with those of its Expense Group. The Lipper total expenses, for comparative consistency, were shown by Lipper for Class A shares and compared total expenses including 12b-1 and non-12b-1 service fees. The Board also considered fees paid to Delaware Investments for non-management services. The Board noted its objective to limit the Fund's total expense ratio to an acceptable range as compared to the median of the Expense Group. The following paragraph summarizes the expense results for the Fund and the Board's view of such expenses. The expense comparisons for the Fund showed that its actual management fee was in the quartile with the second lowest expenses of its Expense Group and its total expenses were in the quartile with the highest expenses of its Expense Group. The Board gave favorable consideration to the Fund's management fee, but noted that the Fund's total expenses were not in line with the Board's objective. In evaluating the total expenses, the Board considered waivers in place through November 2006 and recent initiatives implemented by management, such as the outsourcing of certain transfer agency services, creating an opportunity for a reduction in expenses. The Board was satisfied with management's efforts to improve the Fund's total expense ratio and bring it in line with the Board's objective. Management Profitability. The Board considered the level of profits, if any, realized by Delaware Investments in connection with the operation of the Fund. In this respect, the Board reviewed the Investment Management Profitability Analysis that addressed the overall profitability of Delaware Investments' business in providing management and other services to each of the individual funds and the Delaware Investments Family of Funds as a whole. Specific attention was given to the methodology followed in allocating costs for the purpose of determining profitability. Management stated that the level of profits of Delaware Investments, to a certain extent, reflected operational cost savings and efficiencies initiated by Delaware Investments. The Board considered Delaware Investments' expenditures to improve services provided to fund shareholders and to meet additional regulatory and compliance requirements resulting from recent SEC initiatives. The Board also considered the extent to which Delaware Investments might derive ancillary benefits from fund operations, including the potential for procuring additional business as a result of the prestige and visibility associated with its role as service provider to the Delaware Investments Family of Funds, the benefits from allocation of fund brokerage to improve trading efficiencies and the use of "soft" commission dollars to pay for proprietary and non-proprietary research. The Board did not find that the level of profits realized by Delaware Investments from the relationships with the Fund and the Delaware Investments Family of Funds required negotiation of reduction of fees. Economies of Scale. The Trustees considered whether economies of scale are realized by Delaware Investments as the Fund's assets increase and the extent to which any economies of scale are reflected in the level of management fees charged. The Trustees took into account the standardized advisory fee pricing and structure approved by the Board and shareholders as part of a complex-wide shareholder meeting conducted in 1998/1999. At that time, Delaware Investments introduced breakpoints to account for management economies of scale. The Board noted that the fee under the Fund's management contract fell within the standard structure. Although the Fund has not reached a size at which it can take advantage of breakpoints, the Board recognized that the fees were structured so that when the Fund grows, economies of scale may be shared. 25 <page> Board of trustees/directors and officers addendum Delaware Investments(R) Family of Funds A mutual fund is governed by a Board of Trustees/Directors ("Trustees"), which has oversight responsibility for the management of a fund's business affairs. Trustees establish procedures and oversee and review the performance of the investment manager, the distributor, and others who perform services for the fund. The independent fund trustees, in particular, are advocates for shareholder interests. Each trustee has served in that capacity since he or she was elected to or appointed to the Board of Trustees, and will continue to serve until his or her retirement or the election of a new trustee in his or her place. The following is a list of the Trustees and Officers with certain background and related information. Number of Porfolios in Other Name, Fund Complex Directorships Address, Position(s) Held Length of Principal Occupation(s) Overseen by Held by and Birth Date with Fund(s) Time Served During Past 5 Years Trustee or Officer Trustee or Officer ____________________________________________________________________________________________________________________________________ Interested Trustees ____________________________________________________________________________________________________________________________________ Patrick P. Coyne (1) Chairman, Chairman and Trustee Patrick P. Coyne has served in 83 None 2005 Market Street President, since August 16, 2006 various executive capacities Philadelphia, PA Chief Executive at different times at 19103 Officer, and President and Delaware Investments.(2) Trustee Chief Executive Officer April 14, 1963 since August 1, 2006 ____________________________________________________________________________________________________________________________________ Independent Trustees ____________________________________________________________________________________________________________________________________ Thomas L. Bennett Trustee Since Private Investor - 83 None 2005 Market Street March 2005 (March 2004-Present) Philadelphia, PA 19103 Investment Manager - Morgan Stanley & Co. October 4, 1947 (January 1984-March 2004) ____________________________________________________________________________________________________________________________________ John A. Fry Trustee Since President - 83 Director - 2005 Market Street January 2001 Franklin & Marshall College Community Health Philadelphia, PA (June 2002-Present) Systems 19103 Executive Vice President - Director - May 28, 1960 University of Pennsylvania Allied Barton (April 1995-June 2002) Security Holdings ____________________________________________________________________________________________________________________________________ Anthony D. Knerr Trustee Since Founder and Managing Director - 83 None 2005 Market Street April 1990 Anthony Knerr & Associates Philadelphia, PA (Strategic Consulting) 19103 (1990-Present) December 7, 1938 ____________________________________________________________________________________________________________________________________ Lucinda S. Landreth Trustee Since Chief Investment Officer - 83 None 2005 Market Street March 2005 Assurant, Inc. Philadelphia, PA (Insurance) 19103 (2002-2004) June 24, 1947 ____________________________________________________________________________________________________________________________________ Ann R. Leven Trustee Since Owner - 83 Director and Audit 2005 Market Street September 1989 ARL Associates, Committee Philadelphia, PA Strategic Financial Planning Chairperson - 19103 Consulting Firm Andy Warhol Foundation (1983-Present) November 1, 1940 Director and Audit Committee Member - Systemax, Inc. ____________________________________________________________________________________________________________________________________ 26 <page> Number of Porfolios in Other Name, Fund Complex Directorships Address, Position(s) Held Length of Principal Occupation(s) Overseen by Held by and Birth Date with Fund(s) Time Served During Past 5 Years Trustee or Officer Trustee or Officer ____________________________________________________________________________________________________________________________________ Interested Trustees (continued) ____________________________________________________________________________________________________________________________________ Thomas F. Madison Trustee Since President and Chief 83 Director - 2005 Market Street May 1999 Executive Officer - Banner Health Philadelphia, PA MLM Partners, Inc. 19103 (Small Business Investing Director- and Consulting) CenterPoint Energy February 25, 1936 (January 1993-Present) Director and Audit Committee Member - Digital River, Inc. Director and Audit Committee Member - Rimage Corporation Director - Valmont Industries, Inc. ____________________________________________________________________________________________________________________________________ Janet L. Yeomans Trustee Since Vice President 83 None 2005 Market Street April 1999 (January 2003-Present) Philadelphia, PA and Treasurer 19103 (January 2006-Present) 3M Corporation July 31, 1948 Ms. Yeomans has held various management positions at 3M Corporation since 1983. ____________________________________________________________________________________________________________________________________ J. Richard Zecher Trustee Since Founder - 83 Director and Audit 2005 Market Street March 2005 Investor Analytics Committee Member - Philadelphia, PA (Risk Management) Investor Analytics 19103 (May 1999-Present) Director and Audit July 3, 1940 Founder - Committee Member - Sutton Asset Management Oxigene, Inc. (Hedge Fund) (September 1998-Present) ____________________________________________________________________________________________________________________________________ Officers ____________________________________________________________________________________________________________________________________ Michael P. Bishof Senior Chief Financial Michael P. Bishof has served in 83 None(3) 2005 Market Street Vice President Officer since various executive capacities Philadelphia, PA and February 2005 at different times at 19103 Chief Financial Delaware Investments. Officer August 18, 1962 ____________________________________________________________________________________________________________________________________ David F. Connor Vice President, Vice President since David F. Connor has served as 83 None(3) 2005 Market Street Deputy General September 21, 2000 Vice President and Deputy Philadelphia, PA Counsel, and Secretary General Counsel of 19103 and Secretary since Delaware Investments October 2005 since 2000. December 2, 1963 ____________________________________________________________________________________________________________________________________ David P. O'Connor Senior Vice Senior Vice President, David P. O'Connor has served 83 None(3) 2005 Market Street President, General Counsel, and in various executive and legal Philadelphia, PA General Counsel, Chief Legal Officer capacities at different times at 19103 and Chief since Delaware Investments. Legal Officer October 2005 February 21, 1966 ____________________________________________________________________________________________________________________________________ John J. O'Connor Senior Vice Treasurer John J. O'Connor has served in 83 None(3) 2005 Market Street President and since various executive capacities Philadelphia, PA Treasurer February 2005 at different times at 19103 Delaware Investments. June 16, 1957 ____________________________________________________________________________________________________________________________________ (1) Mr. Coyne is considered to be an "Interested Trustee" because he is an executive officer of the Fund's(s') investment advisor. (2) Delaware Investments is the marketing name for Delaware Management Holdings, Inc. and its subsidiaries, including the Fund's(s') investment advisor, principal underwriter, and its transfer agent. (3) Michael P. Bishof, David F. Connor, David P. O'Connor, and John J. O'Connor serve in similar capacities for the six portfolios of the Optimum Fund Trust, which have the same investment advisor, principal underwriter, and transfer agent as the registrant. John J. O'Connor also serves in a similar capacity for Lincoln Variable Insurance Products Trust, which has the same investment advisor as the registrant. The Statement of Additional Information for the Fund(s) includes additional information about the Trustees and Officers and is available, without charge, upon request by calling 800 523-1918. 27 About the organization This annual report is for the information of Delaware High-Yield Opportunities Fund shareholders, but it may be used with prospective investors when preceded or accompanied by a current prospectus for Delaware High-Yield Opportunities Fund and the Delaware Investments(R) Performance Update for the most recently completed calendar quarter. The prospectus sets forth details about charges, expenses, investment objectives, and operating policies of the Fund. You should read the prospectus carefully before you invest. The figures in this report represent past results that 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. 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 Franklin & Marshall College Lancaster, 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 Owner - ARL Associates, Strategic Financial Planning Consulting Firm Washington, DC 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 Michael P. Bishof Senior Vice President and Chief Financial Officer Delaware Investments Family of Funds Philadelphia, PA David F. Connor Vice President, Deputy General Counsel, and Secretary 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 John J. O'Connor Senior Vice President and Treasurer Delaware Investments Family of Funds Philadelphia, PA Contact information Investment Manager Delaware Management Company, a series of Delaware Management Business Trust Philadelphia, PA National distributor Delaware Distributors, L.P. Philadelphia, PA Shareholder servicing, dividend disbursing, and transfer agent Delaware Service Company, Inc. 2005 Market Street Philadelphia, PA 19103-7094 For shareholders 800 523-1918 For securities dealers and financial institutions representatives only 800 362-7500 Web site www.delawareinvestments.com 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 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; (ii) on the Fund's Web site at http://www.delawareinvestments.com; and (iii) on the Commission's Web site at http://www.sec.gov. The Fund's Forms N-Q may be reviewed and copied at the Commission's Public Reference Room in Washington, D.C.; information on the operation of the Public Reference Room may be obtained 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 http://www.delawareinvestments.com; and (ii) on the Commission's Web site at http://www.sec.gov. 28 <page> Get shareholder reports and prospectuses online instead of in the mail. > Visit www.delawareinvestments.com/edelivery <page> Simplify your life. Manage your investments online! Get Account Access, the Delaware Investments(R) secure Web site that allows you to conduct your business online. Gain 24-hour access to your account and one of the highest levels of Web security available. You also get: o Hassle-free investing - Make online purchases and redemptions at any time. o Simplified tax processing - Automatically retrieve your Delaware Investments accounts' 1099 information and import it directly into your 1040 tax return. Available only with Turbo Tax (R) Online (SM) and Desktop software - www.turbotax.com. o Less mail clutter - Get instant access to your fund materials online with Delaware eDelivery. Register for Account Access today! Please visit us at www.delawareinvestments.com, select Individual Investors, and click Account Access. Please call our Shareholder Service Center at 800 523-1918 Monday through Friday from 8:00 a.m. to 7:00 p.m., Eastern Time, for assistance with any questions. [DELAWARE INVESTMENTS LOGO] (838) Printed in the USA AR-137 [7/06] CGI 9/06 MF-06-08-025 PO11209 Item 2. Code of Ethics The registrant has adopted a code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party. A copy of the registrant's Code of Business Ethics has been posted on Delaware Investments' internet website at www.delawareinvestments.com. Any amendments to the Code of Business Ethics, and information on any waiver from its provisions granted by the registrant, will also be posted on this website within five business days of such amendment or waiver and will remain on the website for at least 12 months. Item 3. Audit Committee Financial Expert The registrant's Board of Trustees/Directors has determined that each member of the registrant's Audit Committee is an audit committee financial expert, as defined below. For purposes of this item, an "audit committee financial expert" is a person who has the following attributes: a. An understanding of generally accepted accounting principles and financial statements; b. The ability to assess the general application of such principles in connection with the accounting for estimates, accruals, and reserves; c. Experience preparing, auditing, analyzing, or evaluating financial statements that present a breadth and level of complexity of accounting issues that are generally comparable to the breadth and complexity of issues that can reasonably be expected to be raised by the registrant's financial statements, or experience actively supervising one or more persons engaged in such activities; d. An understanding of internal controls and procedures for financial reporting; and e. An understanding of audit committee functions. An "audit committee financial expert" shall have acquired such attributes through: a. Education and experience as a principal financial officer, principal accounting officer, controller, public accountant, or auditor or experience in one or more positions that involve the performance of similar functions; b. Experience actively supervising a principal financial officer, principal accounting officer, controller, public accountant, auditor, or person performing similar functions; c. Experience overseeing or assessing the performance of companies or public accountants with respect to the preparation, auditing, or evaluation of financial statements; or d. Other relevant experience. The registrant's Board of Trustees/Directors has also determined that each member of the registrant's Audit Committee is independent. In order to be "independent" for purposes of this item, the Audit Committee member may not: (i) other than in his or her capacity as a member of the Board of Trustees/Directors or any committee thereof, accept directly or indirectly any consulting, advisory or other compensatory fee from the issuer; or (ii) be an "interested person" of the registrant as defined in Section 2(a)(19) of the Investment Company Act of 1940. The names of the audit committee financial experts on the registrant's Audit Committee are set forth below: Thomas L. Bennett (1) Thomas F. Madison Janet L. Yeomans (1) J. Richard Zecher Item 4. Principal Accountant Fees and Services (a) Audit fees. __________ The aggregate fees billed for services provided to the registrant by its independent auditors for the audit of the registrant's annual financial statements and for services normally provided by the independent auditors in connection with statutory and regulatory filings or engagements were $76,800 for the fiscal year ended July 31, 2006. ____________________ (1) The instructions to Form N-CSR require disclosure on the relevant experience of persons who qualify as audit committee financial experts based on "other relevant experience." The Board of Trustees/Directors has determined that Mr. Bennett qualifies as an audit committee financial expert by virtue of his education, Chartered Financial Analyst designation, and his experience as a credit analyst, portfolio manager and the manager of other credit analysts and portfolio managers. The Board of Trustees/Directors has determined that Ms. Yeomans qualifies as an audit committee financial expert by virtue of her education and experience as the Treasurer of a large global corporation. The aggregate fees billed for services provided to the registrant by its independent auditors for the audit of the registrant's annual financial statements and for services normally provided by the independent auditors in connection with statutory and regulatory filings or engagements were $67,200 for the fiscal year ended July 31, 2005. (b) Audit-related fees. __________________ The aggregate fees billed by the registrant's independent auditors for services relating to the performance of the audit of the registrant's financial statements and not reported under paragraph (a) of this Item were $0 for the fiscal year ended July 31, 2006. The aggregate fees billed by the registrant's independent auditors for services relating to the performance of the audit of the financial statements of the registrant's investment adviser and other service providers under common control with the adviser and that relate directly to the operations or financial reporting of the registrant were $33,700 for the registrant's fiscal year ended July 31, 2006. The percentage of these fees relating to services approved by the registrant's Audit Committee pursuant to the de minimis exception from the pre-approval requirement in Rule 2-01(c)(7)(i)(C) of Regulation S-X was 0%. These audit-related services were as follows: issuance of report concerning transfer agent's system of internal accounting control pursuant to Rule 17Ad-13 of the Securities Exchange Act; and issuance of agreed upon procedures reports to the registrant's Board in connection with the pass-through of internal legal cost relating to the operations of the registrant. The aggregate fees billed by the registrant's independent auditors for services relating to the performance of the audit of the registrant's financial statements and not reported under paragraph (a) of this Item were $0 for the fiscal year ended July 31, 2005. The aggregate fees billed by the registrant's independent auditors for services relating to the performance of the audit of the financial statements of the registrant's investment adviser and other service providers under common control with the adviser and that relate directly to the operations or financial reporting of the registrant were $159,700 for the registrant's fiscal year ended July 31, 2005. The percentage of these fees relating to services approved by the registrant's Audit Committee pursuant to the de minimis exception from the pre-approval requirement in Rule 2-01(c)(7)(i)(C) of Regulation S-X was 0%. These audit-related services were as follows: issuance of report concerning transfer agent's system of internal accounting control pursuant to Rule 17Ad-13 of the Securities Exchange Act; issuance of agreed upon procedures reports to the registrant's Board in connection with the annual transfer agent and fund accounting service agent contract renewals and the pass-through of internal legal cost relating to the operations of the registrant; and preparation of Report on Controls Placed in Operation and Tests of Operating Effectiveness Relating to the Retirement Plan Services Division ("SAS 70 report"). (c) Tax fees. ________ The aggregate fees billed by the registrant's independent auditors for tax-related services provided to the registrant were $12,900 for the fiscal year ended July 31, 2006. The percentage of these fees relating to services approved by the registrant's Audit Committee pursuant to the de minimis exception from the pre-approval requirement in Rule 2-01(c)(7)(i)(C) of Regulation S-X was 0%. These tax-related services were as follows: review of income tax returns and review of annual excise distribution calculations. The aggregate fees billed by the registrant's independent auditors for tax-related services provided to the registrant's investment adviser and other service providers under common control with the adviser and that relate directly to the operations or financial reporting of the registrant were $0 for the registrant's fiscal year ended July 31, 2006. The aggregate fees billed by the registrant's independent auditors for tax-related services provided to the registrant were $12,800 for the fiscal year ended July 31, 2005. The percentage of these fees relating to services approved by the registrant's Audit Committee pursuant to the de minimis exception from the pre-approval requirement in Rule 2-01(c)(7)(i)(C) of Regulation S-X was 0%. These tax-related services were as follows: review of income tax returns and review of annual excise distribution calculations. The aggregate fees billed by the registrant's independent auditors for tax-related services provided to the registrant's adviser and other service providers under common control with the adviser and that relate directly to the operations or financial reporting of the registrant were $0 for the registrant's fiscal year ended July 31, 2005. (d) All other fees. ______________ The aggregate fees billed for all services provided by the independent auditors to the registrant other than those set forth in paragraphs (a), (b) and (c) of this Item were $0 for the fiscal year ended July 31, 2006. The aggregate fees billed for all services other than those set forth in paragraphs (b) and (c) of this Item provided by the registrant's independent auditors to the registrant's adviser and other service providers under common control with the adviser and that relate directly to the operations or financial reporting of the registrant were $0 for the registrant's fiscal year ended July 31, 2006. The aggregate fees billed for all services provided by the independent auditors to the registrant other than those set forth in paragraphs (a), (b) and (c) of this Item were $0 for the fiscal year ended July 31, 2005. The aggregate fees billed for all services other than those set forth in paragraphs (b) and (c) of this Item provided by the registrant's independent auditors to the registrant's adviser and other service providers under common control with the adviser and that relate directly to the operations or financial reporting of the registrant were $0 for the registrant's fiscal year ended July 31, 2005. (e) The registrant's Audit Committee has established pre-approval policies and procedures as permitted by Rule 2-01(c)(7)(i)(B) of Regulation S-X (the "Pre-Approval Policy") with respect to services provided by the registrant's independent auditors. Pursuant to the Pre-Approval Policy, the Audit Committee has pre-approved the services set forth in the table below with respect to the registrant up to the specified fee limits. Certain fee limits are based on aggregate fees to the registrant and other registrants within the Delaware Investments Family of Funds. ______________________________________________________________________________________________________________________ Service Range of Fees ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ Audit Services ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ Statutory audits or financial audits for new Funds up to $25,000 per Fund ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ Services associated with SEC registration statements (e.g., Form N-1A, Form N-14, etc.), periodic reports and other documents filed with the SEC or other documents issued in connection with securities offerings (e.g., comfort letters up to $10,000 per Fund for closed-end Fund offerings, consents), and assistance in responding to SEC comment letters ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ Consultations by Fund management as to the accounting or disclosure treatment of transactions or events and/or the actual or potential impact of final or proposed rules, standards or interpretations by the SEC, FASB, or other up to $25,000 in the aggregate regulatory or standard-setting bodies (Note: Under SEC rules, some consultations may be considered "audit-related services" rather than "audit services") ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ Audit-Related Services ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ Consultations by Fund management as to the accounting or disclosure treatment of transactions or events and /or the actual or potential impact of final or proposed rules, standards or interpretations by the SEC, FASB, or other up to $25,000 in the aggregate regulatory or standard-setting bodies (Note: Under SEC rules, some consultations may be considered "audit services" rather than "audit-related services") ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ Tax Services ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ U.S. federal, state and local and international tax planning and advice (e.g., consulting on statutory, regulatory or administrative developments, evaluation up to $25,000 in the aggregate of Funds' tax compliance function, etc.) ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ U.S. federal, state and local tax compliance (e.g., excise distribution reviews, up to $5,000 per Fund etc.) ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ Review of federal, state, local and international income, franchise and other up to $5,000 per Fund tax returns ______________________________________________________________________________________________________________________ Under the Pre-Approval Policy, the Audit Committee has also pre-approved the services set forth in the table below with respect to the registrant's investment adviser and other entities controlling, controlled by or under common control with the investment adviser that provide ongoing services to the registrant (the "Control Affiliates") up to the specified fee limit. This fee limit is based on aggregate fees to the investment adviser and its Control Affiliates. ______________________________________________________________________________________________________________________ Service Range of Fees ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ Non-Audit Services ______________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________ Services associated with periodic reports and other documents filed with the SEC up to $10,000 in the aggregate and assistance in responding to SEC comment letters ______________________________________________________________________________________________________________________ The Pre-Approval Policy requires the registrant's independent auditors to report to the Audit Committee at each of its regular meetings regarding all services initiated since the last such report was rendered, including those services authorized by the Pre-Approval Policy. (f) Not applicable. (g) The aggregate non-audit fees billed by the registrant's independent auditors for services rendered to the registrant and to its investment adviser and other service providers under common control with the adviser were $201,280 and $343,860 for the registrant's fiscal years ended July 31, 2006 and July 31, 2005, respectively. (h) In connection with its selection of the independent auditors, the registrant's Audit Committee has considered the independent auditors' provision of non-audit services to the registrant's investment adviser and other service providers under common control with the adviser that were not required to be pre-approved pursuant to Rule 2-01(c)(7)(ii) of Regulation S-X. The Audit Committee has determined that the independent auditors' provision of these services is compatible with maintaining the auditors' independence. Item 5. Audit Committee of Listed Registrants Not applicable. Item 6. Schedule of Investments Included as part of report to shareholders filed under Item 1 of this Form N-CSR. 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 Company 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 fourth 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. Name of Registrant: Delaware Group Income Funds PATRICK P. COYNE ________________________________ By: Patrick P. Coyne Title: Chief Executive Officer Date: October 4, 2006 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. PATRICK P. COYNE ________________________________ By: Patrick P. Coyne Title: Chief Executive Officer Date: October 4, 2006 MICHAEL P. BISHOF ________________________________ By: Michael P. Bishof Title: Chief Financial Officer Date: October 4, 2006