Mainstay Funds Trust

04/27/2026 | Press release | Distributed by Public on 04/27/2026 07:04

Prospectus by Investment Company (Form 497)

NEW YORK LIFE INVESTMENTS FUNDS
NEW YORK LIFE INVESTMENTS FUNDS TRUST

NYLI WMC Value Fund
NYLI Balanced Fund
(the "Funds")

Supplement dated April 27, 2026 ("Supplement") to the Summary Prospectuses, Prospectuses, and

Statement of Additional Information ("SAI"), each dated February 28, 2026, as supplemented

Capitalized terms and certain other terms used in this Supplement, unless otherwise defined in this Supplement, have the meanings assigned to them in the Summary Prospectuses, Prospectuses and SAI.

Effective as of the close of business on December 31, 2026, Adam H. Illfelder will no longer serve as a portfolio manager of the Funds. All references to Mr. Illfelder will be deleted in their entirety from the Summary Prospectuses, Prospectuses and SAI at that time. Except for this change, each Fund's portfolio management team will remain the same.

PLEASE RETAIN THIS SUPPLEMENT FOR YOUR FUTURE REFERENCE.

REG-00129-04/26

Mainstay Funds Trust published this content on April 27, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on April 27, 2026 at 13:04 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]