Prospectus by Investment Company (Form 497)

DELAWARE GROUP® EQUITY FUNDS IV

Nomura Opportunity Fund

DELAWARE GROUP® EQUITY FUNDS V

Nomura Small Cap Value Fund

(together, the "Funds")

Supplement to the Funds' Summary Prospectus, Statutory Prospectus, and Statement of additional Information, as amended

Effectively immediately, Jonathan Ketzner is added as a portfolio manager for the Funds.

On or about June 30, 2027, Kent Madden will retire from Delaware Management Company, the Funds' manager, and will no longer be a portfolio manager of the Funds.

On or about December 31, 2026, Mr. Madden's title will change to "Managing Director, Senior Portfolio Manager US Small-Mid Cap Value Equity" and Ms. Kelley Carabasi's title will change to "Managing Director, Head of US Small-Mid Cap Value Equity."

Nomura Opportunity Fund

Effective immediately, the following replaces the section of the Fund's Statutory Prospectus entitled "Fund Summaries - Nomura Opportunity Fund - Who manages the Fund? - Investment Manager":

Investment manager

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

* On or about December 31, 2026, Ms. Carabasi's title will change to "Managing Director, Head of US Small-Mid Cap Value Equity."

** On or about June 30, 2027, Mr. Madden will be retiring from the Manager and no longer be a portfolio manager of the Fund. On or about December 31, 2026, Mr. Madden's title will change to "Managing Director, Senior Portfolio Manager - US Small-Mid Cap Value Equity".

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 Fund.

Effective immediately, the following replaces the corresponding information in the section of the Fund's Statutory Prospectus entitled "Who manages the Funds - Portfolio managers - Nomura Opportunity Fund:"

Kelley Carabasi and Kent Madden (until his retirement from the Manager on or about June 30, 2027) have primary responsibility for making day-to-day investment decisions for the Fund. Ms. Carabasi and Mr. Madden regularly consult with Michael Foley and Jonathan Ketzner.

Effective immediately, the following is added to the section of the Fund's Statutory Prospectus entitled "Who manages the Funds - Portfolio managers - Nomura Opportunity Fund:"

Jonathan Ketzner

Executive Director, Portfolio Manager - US Small-Mid Cap Value Equity

Jonathan is a Portfolio Manager for the US Small-Mid Cap Value Equity Team at Nomura Asset Management International, a role he assumed in August 2026. He joined Nomura Asset Management as part of Nomura's acquisition of Macquarie Asset Management's US and European public investments business in 2025. Previously, he was a Senior Equity Analyst on the team since March 2022.

Prior to Macquarie, he worked at Janney Montgomery Scott from September 2010 to March 2022 as a Director in the Financial Institutions and Real Estate Investment Banking Groups. Prior to Janney, Jonathan worked at Citi as a Financial Analyst in its Corporate Strategy and Mergers & Acquisitions Group from July 2007 to September 2010. He received a Bachelor of Arts in history and a Master of Arts in international relations and economics from Johns Hopkins University.

Effective immediately, the following information is added to the chart in the section of the Fund's Statement of Additional Information entitled, "Portfolio Managers - Other Accounts Managed":

* As of July 31, 2026

Nomura Small Cap Value Fund

Effective immediately, the following replaces the section of the Fund's Statutory Prospectus entitled "Fund Summary - Nomura Small Cap Value Fund - Who manages the Fund? - Investment Manager":

Investment manager

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

* On or about December 31, 2026, Ms. Carabasi's title will change to "Managing Director, Head of US Small-Mid Cap Value Equity."

** On or about June 30, 2027, Mr. Madden will be retiring from the Manager and no longer be a portfolio manager of the Fund. On or about December 31, 2026, Mr. Madden's title will change to "Managing Director, Senior Portfolio Manager - US Small-Mid Cap Value Equity".

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 Fund.

Effective immediately, the following replaces the corresponding information in the section of the Fund's Statutory Prospectus entitled "Who manages the Fund - Portfolio managers:"

Kelley Carabasi and Kent Madden (until his retirement from the Manager on or about June 30, 2027) have primary responsibility for making day-to-day investment decisions for the Fund. Ms. Carabasi and Mr. Madden regularly consult with Michael Foley and Jonathan Ketzner.

Effective immediately, the following is added to the section of the Fund's Statutory Prospectus entitled "Who manages the Fund - Portfolio managers:"

Jonathan Ketzner

Executive Director, Portfolio Manager - US Small-Mid Cap Value Equity

Jonathan is a Portfolio Manager for the US Small-Mid Cap Value Equity Team at Nomura Asset Management International, a role he assumed in August 2026. He joined Nomura Asset Management as part of Nomura's acquisition of Macquarie Asset Management's US and European public investments business in 2025. Previously, he was a Senior Equity Analyst on the team since March 2022.

Prior to Macquarie, he worked at Janney Montgomery Scott from September 2010 to March 2022 as a Director in the Financial Institutions and Real Estate Investment Banking Groups. Prior to Janney, Jonathan worked at Citi as a Financial Analyst in its Corporate Strategy and Mergers & Acquisitions Group from July 2007 to September 2010. He received a Bachelor of Arts in history and a Master of Arts in international relations and economics from Johns Hopkins University.

Effective immediately, the following information is added to the chart in the section of the Fund's Statement of Additional Information entitled, "Portfolio Managers - Other Accounts Managed":

* As of July 31, 2026

Because everyone's tax situation is unique, you should consult your tax professional about federal, state, local, or foreign tax consequences before making an investment in, or redemption from, a Fund or acting on a distribution check (if applicable).

Please keep this Supplement for future reference.

This Supplement is dated August 24, 2026.