Mizuho Financial (NYSE: MFG) reports higher Dec 2025 capital ratios

Rhea-AI Filing Summary

Mizuho Financial Group, Inc. reports its regulatory capital ratios as of December 31, 2025 for the group and key banking subsidiaries. On a consolidated basis under the international standard, the group shows a Total Capital Ratio of 18.16%, Tier 1 Capital Ratio of 16.23%, and Common Equity Tier 1 (CET1) Ratio of 13.76%.

Compared with March 31, 2025, these consolidated ratios increased by 0.41, 0.58, and 0.53 percentage points, supported by Total Capital of ¥14,082.8 billion and Risk‑weighted Assets of ¥77,531.2 billion. Mizuho Bank and Mizuho Trust & Banking also report solid capital levels, with the trust bank’s domestic standard capital ratio at 33.79%.

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 February 2026

Commission File Number 001-33098

Mizuho Financial Group, Inc.

(Translation of registrant’s name into English)

5-5, Otemachi 1-chome

Chiyoda-ku, Tokyo 100-8176

Japan

(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 ☒ Form 40-F ☐

THIS REPORT ON FORM 6-K SHALL BE DEEMED TO BE INCORPORATED BY REFERENCE INTO THE PROSPECTUS FORMING A PART OF MIZUHO FINANCIAL GROUP, INC.’S REGISTRATION STATEMENT ON FORM F-3 (FILE NO. 333-282497) AND TO BE A PART OF SUCH PROSPECTUS FROM THE DATE ON WHICH THIS REPORT IS FURNISHED, TO THE EXTENT NOT SUPERSEDED BY DOCUMENTS OR REPORTS SUBSEQUENTLY FILED OR FURNISHED.

SIGNATURES

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.

Date:		February 13, 2026
Mizuho Financial Group, Inc.
By:		/s/ Takefumi Yonezawa
Name:		Takefumi Yonezawa
Title:		Senior Managing Corporate Executive / Group CFO

February 13, 2026

To whom it may concern:

Company Name:		Mizuho Financial Group, Inc.
Representative:		Masahiro Kihara, President & CEO
Head Office:		1-5-5 Otemachi, Chiyoda-ku, Tokyo
Stock Code Number:		8411
		(Tokyo Stock Exchange (Prime Market))

Announcement regarding Capital Ratio as of December 31, 2025

Mizuho Financial Group, Inc. hereby announces Capital Ratio as of December 31, 2025, as shown in the appendix.

Capital Ratio

		Consolidated												(%, Billions of yen)
Mizuho Financial Group International Standard		As of December 31 2025				Change				As of March 31, 2025				As of September 30, 2025
(1)   Total Capital Ratio			18.16				0.41				17.75				18.41
(2)   Tier 1 Capital Ratio			16.23				0.58				15.65				16.55
(3)   Common Equity Tier 1 Capital Ratio			13.76				0.53				13.23				13.70
(4)   Total Capital			14,082.8				1,327.0				12,755.7				13,662.3
(5)   Tier 1 Capital			12,586.8				1,338.6				11,248.2				12,287.4
(6)   Common Equity Tier 1 Capital			10,668.3				1,162.1				9,506.2				10,166.2
(7)   Risk-weighted Assets			77,531.2				5,686.8				71,844.4				74,205.0
(8)   Total Required Capital (7)x8%			6,202.5				454.9				5,747.5				5,936.4
		Consolidated																Non-Consolidated
Mizuho Bank International Standard		As of December 31 2025				Change				As of March 31, 2025				As of September 30, 2025				As of December 31 2025
(1)   Total Capital Ratio			17.21				0.94				16.27				17.50				16.35
(2)   Tier 1 Capital Ratio			15.15				1.09				14.06				15.48				14.09
(3)   Common Equity Tier 1 Capital Ratio			12.44				1.02				11.42				12.34				11.14
(4)   Total Capital			12,278.8				1,560.0				10,718.8				11,836.9				10,623.9
(5)   Tier 1 Capital			10,804.5				1,537.2				9,267.3				10,473.0				9,159.1
(6)   Common Equity Tier 1 Capital			8,873.0				1,343.9				7,529.0				8,350.9				7,238.6
(7)   Risk-weighted Assets			71,306.4				5,427.0				65,879.4				67,632.6				64,971.6
(8)   Total Required Capital (7)x8%			5,704.5				434.1				5,270.3				5,410.6				5,197.7
		Consolidated																Non-Consolidated
Mizuho Trust & Banking Domestic Standard		As of December 31 2025				Change				As of March 31, 2025				As of September 30, 2025				As of December 31 2025
(1)   Capital Ratio			33.79				/				/				/				34.09
(2)   Core Capital			486.8				/				/				/				471.5
(3)   Risk-weighted Assets			1,440.5				/				/				/				1,383.0
(4)   Total Required Capital (3)x4%			57.6				/				/				/				55.3
* As of December 31, 2025, Mizuho Trust & Banking is subject to the Domestic Standard.
		Consolidated																Non-Consolidated
Mizuho Trust & Banking International Standard (Reference)		As of December 31 2025				Change				As of March 31, 2025				As of September 30, 2025				As of December 31 2025
(1)   Total Capital Ratio			37.49				5.89				31.60				34.58				37.90
(2)   Tier 1 Capital Ratio			37.45				5.85				31.60				34.58				37.86
(3)   Common Equity Tier 1 Capital Ratio			37.45				5.85				31.60				34.57				37.86
(4)   Total Capital			580.6				86.7				493.9				549.8				564.5
(5)   Tier 1 Capital			580.0				86.1				493.8				549.7				564.0
(6)   Common Equity Tier 1 Capital			579.9				86.1				493.8				549.7				564.0
(7)   Risk-weighted Assets			1,548.5				(14.0	)			1,562.5				1,589.6				1,489.4
(8)   Total Required Capital (7)x8%			123.8				(1.1	)			125.0				127.1				119.1

FAQ

What is Mizuho Financial Group (MFG) total capital ratio as of December 31, 2025?

The total capital ratio is 18.16% on a consolidated basis as of December 31, 2025. This reflects ¥14,082.8 billion of total capital against ¥77,531.2 billion of risk‑weighted assets under the international standard framework applied to Mizuho Financial Group.

What are Mizuho Financial Group (MFG) Tier 1 and CET1 capital ratios at December 31, 2025?

Mizuho reports a Tier 1 Capital Ratio of 16.23% and a CET1 Ratio of 13.76% on a consolidated basis. These ratios, calculated under the international standard, indicate the strongest layers of capital relative to risk‑weighted assets at the group level.

How did Mizuho Financial Group’s consolidated capital ratios change versus March 31, 2025?

Compared with March 31, 2025, the consolidated total capital ratio increased by 0.41 percentage points, Tier 1 by 0.58, and CET1 by 0.53. These changes reflect higher capital levels alongside increased risk‑weighted assets within the group’s international standard calculations.

What are Mizuho Bank’s key capital ratios as of December 31, 2025?

Mizuho Bank shows a consolidated Total Capital Ratio of 17.21%, Tier 1 Capital Ratio of 15.15%, and CET1 Ratio of 12.44% under the international standard. These metrics compare with earlier dates and are supported by detailed capital and risk‑weighted asset figures.

What capital ratio does Mizuho Trust & Banking report under the domestic standard?

Under the domestic standard, Mizuho Trust & Banking reports a capital ratio of 33.79% as of December 31, 2025. This is based on core capital of ¥486.8 billion and risk‑weighted assets of ¥1,440.5 billion, indicating substantial capital relative to its risk exposure.

What are Mizuho Trust & Banking’s reference capital ratios under the international standard?

As a reference under the international standard, Mizuho Trust & Banking reports a Total Capital Ratio of 37.49%, with identical Tier 1 and CET1 Ratios of 37.45%. These ratios are calculated on total capital of ¥580.6 billion and risk‑weighted assets of ¥1,548.5 billion.