Vanguard Explorer Fund

03/03/2026 | Press release | Distributed by Public on 03/03/2026 11:10

Prospectus Certification by Investment Company (Form 497J)

March 3, 2026

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

Re: Vanguard Explorer Fund (the "Trust")

File No. 2-27203

Commissioners:

Pursuant to Rule 497(j) under the Securities Act of 1933, this letter serves as certification that the Prospectus and Statement of Additional Information with respect to the above-referenced Trust do not differ from that filed in the most recent post-effective amendment, which was filed electronically.

Sincerely,

/s/ Kerry K. Bender

Kerry K. Bender

Assistant General Counsel

The Vanguard Group, Inc.

Enclosures

cc: Lisa N. Larkin

U.S. Securities and Exchange Commission


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