Summary Prospectus by Investment Company (Form 497K)

Nomura VIP High Income Series - Standard Class and Service Class

(formerly, Macquarie VIP High Income Series)

April 30, 2026

Before you invest, you may want to review the Series' statutory prospectus (and any supplements thereto), which contains more information about the Series and its risks. You can find the Series' statutory prospectus and other information about the Series, including its statement of additional information and most recent reports to shareholders, online at nomuraassetmanagement.com/vip-literature. You can also get this information at no cost by calling 800 523-1918. The Series' statutory prospectus and statement of additional information, both dated April 30, 2026 (and any supplements thereto), are incorporated by reference into this summary prospectus.

What is the Series' investment objective?

Nomura VIP High Income Series seeks to provide total return through a combination of high current income and capital appreciation.

What are the Series' fees and expenses?

The following table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Series. The fee table and example do not reflect any fees or sales charges imposed by variable insurance contracts. If they did, the expenses would be higher.

Annual series operating expenses (expenses that you pay each year as a percentage of the value of your investment)

Example

This example is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Series for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Summary prospectus

Portfolio turnover

The Series pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in the annual series operating expenses or in the example, affect the Series' performance. During the most recent fiscal year, the Series' portfolio turnover rate was 42% of the average value of its portfolio.

What are the Series' principal investment strategies?

Nomura VIP High Income Series seeks to achieve its objective by investing primarily in a diversified portfolio of high-yield, high-risk, fixed-income securities, including secured and unsecured loan assignments, loan participations and other loan instruments (loans), of US and foreign issuers, the risks of which are, in the judgment of Delaware Management Company (Manager), the Series' investment manager, and Nomura Corporate Research and Asset Management Inc (the "Sub-Advisor", together the "Management Team") consistent with the Series' objective. The Series invests primarily in lower-quality debt securities, which include debt securities rated BB+ or lower by S&P Global Ratings, a division of S&P Global, Inc. (S&P), or comparably rated by another nationally recognized statistical rating organization (NRSRO) or, if unrated, determined by the Management Team to be of comparable quality. The Series may invest up to 100% of its total assets in non-investment-grade debt securities, commonly called "high-yield" or "junk" bonds, which include debt securities rated BB+ or lower by S&P, or comparably rated by another NRSRO or, if unrated, determined by the Management Team to be of comparable quality. The Series may invest in fixed-income securities of any maturity.

The Series may invest up to 100% of its total assets in foreign securities that are denominated in U.S. dollars or foreign currencies. Many of the companies in which the Series may invest have diverse operations, with products or services in foreign markets. Therefore, the Series may have indirect exposure to various foreign markets through investments in these companies, even if the Series is not invested directly in such markets.

The Series may invest in restricted securities.

At times, the Series may invest in a wholly-owned company acting as an investment vehicle for the Series to effect certain investments consistent with the Series' investment objectives (Subsidiary). The Series' investment in the Subsidiary is expected to provide the Series with exposure to certain investments in accordance with the limits of the federal tax laws. The Series complies with the provisions of the Investment Company Act of 1940, as amended (1940 Act), that govern investment policies, capital structure and leverage on an aggregate basis with the Subsidiary. The Subsidiary complies with the 1940 Act's provisions relating to affiliated transactions and custody of assets.

What are the principal risks of investing in the Series?

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Series will increase and decrease according to changes in the value of the securities in the Series' portfolio. An investment in the Series may not be appropriate for all investors. The Series' principal risks include:

Foreign risk - The risk that investments in foreign securities (particularly those of issuers in emerging markets) may be adversely affected by political instability, changes in currency exchange rates, inefficient markets and higher transaction costs, foreign economic conditions, the imposition of economic or trade sanctions, or inadequate or different regulatory and accounting standards.

High yield (junk) bond risk - The risk that high yield securities, commonly known as "junk bonds," are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities.

Credit risk - The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Loans and other  direct indebtedness risk - The risk that a series will not receive payment of principal, interest, and other amounts due in connection with these investments and will depend primarily on the financial condition of the borrower and the lending institution. A series' ability to sell its loans or to realize their full value upon sale may also be impaired due to the lack of an active trading market, irregular trading activity, wide bid/ask spreads, contractual restrictions, and extended trade settlement periods. In addition, certain loans in which a series invests may not be considered securities. A series therefore may not be able to rely upon the anti-fraud provisions of the federal securities laws with respect to these investments.

Currency risk - The risk that fluctuations in exchange rates between the US dollar and foreign currencies and between various foreign currencies may cause the value of an investment to decline.

2

Interest rate risk - The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A series may be subject to a greater risk of rising interest rates when interest rates are low or inflation rates are high or rising.

Liquidity risk - The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a series has valued them.

Prepayment risk - The risk that the principal on a bond that is held by a series will be prepaid prior to maturity at a time when interest rates are lower than what that bond was paying. A series may then have to reinvest that money at a lower interest rate.

Subsidiary risk - The Subsidiary is not registered, nor subject to the investor protections, under the Investment Company Act of 1940 (1940 Act), and does not benefit from all the investor protections that apply to 1940 Act-registered funds. Changes in applicable tax laws could result in the inability of the Series and/or the Subsidiary to operate as described herein, which could adversely affect the Series and its shareholders.

Restricted securities risk - The risk that restricted securities are subject to legal or contractual restrictions on resale and there can be no assurance of a ready market for resale. These securities include private placements or other unregistered securities, such as "Rule 144A Securities", which are securities that may be sold only to qualified institutional buyers pursuant to the Securities Act of 1933, as amended (1933 Act). Privately placed securities, Rule 144A securities and other restricted securities may have the effect of increasing the level of series  illiquidity to the extent a series finds it difficult to sell these securities when the Manager believes it is desirable to do so, especially under adverse market or economic conditions or in the event of adverse changes in the financial condition of the issuer, and the prices realized could be less than those originally paid, or less than the fair market value. At times, the illiquidity of the market, as well as the lack of publicly available information regarding these securities also may make it difficult to determine the fair market value of such securities for purposes of computing the NAV of a series.

New issue risk - New issues may have limited markets, making valuation and selling difficult. The market value of newly issued securities may fluctuate considerably.

Distressed securities risk - The market for distressed securities and instruments is generally thinner and less active than other markets, which can adversely affect the prices at which distressed securities can be sold.

Deferred payment securities risk - These securities may be subject to greater price fluctuations when interest rates change than securities that currently pay interest. During the time that interest payments are not being made on these securities, holders are deemed to receive income annually, even though cash is not received.

Payment-in-kind securities risk -  Payment-in-kind securities defer cash interest payments by treating them as additional principal. This results in higher total debt and the potential for increased default risk of the issuer.

Redemption risk - If investors redeem more shares of a series than are purchased for an extended period of time, a series may be required to sell securities without regard to the investment merits of such actions. This could decrease a series' asset base, potentially resulting in a higher expense ratio.

Active management and selection risk - The risk that the securities selected by a series' management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

How has Nomura VIP High Income Series performed?

The bar chart and table below provide some indication of the risks of investing in the Series. The bar chart shows changes in the Series' performance from year to year and the table shows how the Series' average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance and an additional index with characteristics relevant to the Series.  The Series' past performance is not necessarily an indication of how the Series will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.  

On April 30, 2021, Delaware Management Company became the Series' investment manager. The returns shown from before April 30, 2021 are from the Series' prior investment manager.

Effective November 15, 2021, the Series changed its investment strategy. Performance prior to November 15, 2021 reflects the Series' former strategy; its performance may have differed if the Series' current strategy had been in place.

You may obtain the Series' most recently available month-end performance by calling 800 523-1918 or by visiting our website at nomuraassetmanagement.com/vip-performance.

3

Summary prospectus

Performance reflects all Series expenses but does not include any fees or sales charges imposed by variable insurance contracts. If they had been included, the returns shown below would be lower. Investors should consult the variable contract prospectus for more information.

Calendar year-by-year total return (Service Class)

During the periods illustrated in this bar chart, Service Class's highest quarterly return was 8.56% for the quarter ended June 30, 2020, and its lowest quarterly return was  -14.50% for the quarter ended March 31, 2020.

Average annual total returns for periods ended December 31, 2025

Who manages the Series?

Investment manager

Delaware Management Company, a series of Nomura  Investment Management Business Trust (a Delaware statutory trust)

Employees of the Manager's  affiliates outside the US participate in the management of certain funds as "associated persons" of the Manager  under the Manager's oversight, in accordance with SEC guidance as to "participating affiliate" arrangements. These associated persons may, on behalf of the Manager, provide discretionary investment management services, trading, research and related services directly or indirectly to the Series.

Sub-advisor

Nomura Corporate Research and Asset Management Inc.

Purchase and redemption of Series shares

Shares are sold, directly or indirectly, to separate accounts of life insurance companies at net asset value (NAV). Please refer to the variable annuity or variable life insurance product contract prospectus for more information about the purchase and redemption of shares.

4

Tax information

The dividends and distributions paid from the Series to the insurance company separate accounts will consist of ordinary income, capital gains, or some combination of both. Because shares of the Series must be purchased through separate accounts used to fund variable annuity contracts or variable life insurance contracts (variable contracts), such dividends and distributions will be exempt from current taxation by contract holders if left to accumulate within a separate account. You should refer to your variable contract prospectus for more information on these tax consequences.

Payments to broker/dealers and other financial intermediaries

If you purchase shares of the Series through a broker/dealer or other financial intermediary (such as an insurance company), the  Series and its related companies may pay the intermediary for the sale of Series shares and related services. These payments may create a conflict of interest by influencing the broker/dealer or other intermediary and your salesperson to recommend the Series over another investment. Ask your salesperson or visit your financial intermediary's website for more information.

5

This page intentionally left blank

6

This page intentionally left blank

7

This page intentionally left blank

VIPSUM-HIINC 4/26