UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE
13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934

For the month of August 2025

Commission File Number 001-38752

Qfin Holdings, Inc.

(Translation of registrant’s name into English)

7/F Lujiazui Finance Plaza

No. 1217 Dongfang Road

Pudong New Area, Shanghai 200122

People’s Republic of China

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F. Form 20-F x Form 40-F ¨

Exhibit Index

Exhibit 99.1 — Date of Board Meeting and Date of Publication of Second Quarter and Interim 2025 Financial Results Announcement

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Qfin Holdings, Inc.

	By:	/s/ Alex Xu
	Name:	Alex Xu
	Title:	Director and Chief Financial Officer

Date: August 4, 2025

Qfin Holdings, Inc. 6-K