Business Context and Reporting Period
This Form 6-K filing by Mizuho Financial Group, Inc. (Mizuho) reports the announcement of Capital Ratios as of December 31, 2023. The report was filed on February 14, 2024, and covers consolidated data for Mizuho Financial Group, as well as consolidated and non-consolidated data for its primary subsidiaries: Mizuho Bank and Mizuho Trust & Banking.
Key Financial Metrics: Capital Adequacy
The filing focuses exclusively on regulatory capital metrics under International Standards. No revenue, profit, cash flow, or margin data is provided in this document.
| Metric | Mizuho Financial Group (Consolidated) | Mizuho Bank (Consolidated) | Mizuho Trust & Banking (Consolidated) |
|---|---|---|---|
| Total Capital Ratio | 15.97% | 15.22% | 29.51% |
| Tier 1 Capital Ratio | 13.94% | 13.13% | 29.50% |
| Common Equity Tier 1 (CET1) Ratio | 11.89% | 10.92% | 29.50% |
| Total Capital (Billions of Yen) | 12,146.1 | 10,680.5 | 483.6 |
| Risk-Weighted Assets (Billions of Yen) | 76,039.4 | 70,174.1 | 1,638.8 |
Material Changes vs. Prior Periods
Comparisons are made against March 31, 2023 (prior fiscal year-end) and September 30, 2023 (prior quarter).
- Mizuho Financial Group: The Total Capital Ratio decreased slightly by 0.08 percentage points from March 31, 2023 (16.05% to 15.97%). However, it increased by 0.11 percentage points from the previous quarter (15.86%). Total Capital increased by 839.1 billion yen year-over-year, while Risk-Weighted Assets increased by 5,605.2 billion yen.
- Mizuho Bank: The Total Capital Ratio improved by 0.28 percentage points year-over-year (14.94% to 15.22%). Total Capital rose by 910.8 billion yen, and Risk-Weighted Assets increased by 4,802.3 billion yen.
- Mizuho Trust & Banking: The Total Capital Ratio saw a significant increase of 3.56 percentage points year-over-year (25.95% to 29.51%). This was driven by an increase in Total Capital of 38.7 billion yen and a decrease in Risk-Weighted Assets of 75.4 billion yen.
Guidance, Outlook, and Risks
The filing text does not provide forward-looking guidance, management commentary on future strategy, specific risk factors, or details on contingencies. The document is strictly a disclosure of historical capital adequacy ratios as of December 31, 2023.
Investor Verification Checklist
- Verify the impact of the 5,605.2 billion yen increase in Risk-Weighted Assets on the Group's overall capital efficiency.
- Confirm the drivers behind the significant 3.56 percentage point jump in Mizuho Trust & Banking's capital ratios.
- Review the full annual report (Form 20-F) for revenue, net income, and cash flow data, as this filing contains only capital adequacy metrics.
- Assess whether the slight decline in the Group's Total Capital Ratio year-over-year aligns with regulatory expectations and internal targets.