Report published August 17, 2026
Mizuho Securities: BOJ Monetary Policy Tightening Path, JGB Yields, and FX Dynamics (August 2026)
Source and citation context
- Issuer
- Mizuho Securities
- Report date
- August 17, 2026
- Analysis as of
- August 17, 2026
Authors / editors: Yusuke Matsuo (Senior Market Economist), Shintaro Inagaki (Senior Market Economist), Yasuhisa Irie (Market Economist), Ryosuke Katagi (Market Economist), Shota Amano (Market Economist)
Finvaulta summarizes Mizuho Securities's analysis. Attribute opinions, forecasts, time-sensitive values, and chronology to the issuer and report date; do not treat this page as an independent verification or a current market-data source.
Mizuho Securities projects the Bank of Japan will raise its policy rate to 1.25% in September 2026, reaching a terminal rate of 1.75% by June 2027. Domestic bond yield rises should remain modest as market terminal rate pricing above 2% is excessive, while USD/JPY is expected to appreciate gradually toward 151 by mid-2027.
Key Takeaways
- 1.Mizuho's baseline scenario anticipates a 25bp Bank of Japan policy rate hike in September 2026, driven by upside inflation risks and US coordination pressure, with subsequent hikes expected in January and June 2027 to reach a terminal rate of 1.75%.
- 2.The BOJ's 30-31 July Summary of Opinions revealed broad hawkish alignment with almost no calls for caution on rate hikes, establishing every Monetary Policy Meeting from September onward as 'live'.
- 3.Japanese sovereign bond yields are projected to experience limited upside as current market pricing for a terminal rate above 2% is excessive; yields are expected to enter a sustained decline around mid-2027.
Table of Contents
- Global economy and finance: Weekly watch (17 August)
- Review of key indicators and events
- Economic indicators
- BOJ-related events
- Economic outlook (as of 17 August)
- Comments on real GDP outlook
- Comments on CPI outlook
- Comments on domestic rates outlook
Report data
Chart 2. Macro team forecasts for financial and forex markets — as of August 17, 2026.
| Metric | Estimate | Context |
|---|---|---|
| Current Account Balance | -92.3 JPY billion | Japan reported a current account deficit falling far short of the Bloomberg consensus forecast of a JPY1,521.0 billion surplus. |
| Corporate Goods Price Index (CGPI) | 7.2 % YoY | Japan's CGPI growth fell below previous-month result for the first time in five months. |
| Yen-denominated Import Price Index | 29.1 % YoY | Import price index growth moderated slightly as crude oil stabilized and USD/JPY fell. |
| BOJ Policy Rate | 1.0% | The 30-31 July BOJ MPM left policy rate at 1.00% before anticipated hikes. |
| Terminal BOJ Policy Rate Forecast | 1.75% | Mizuho's forecasted terminal rate for the current tightening cycle. |
Reports in this series
Macro Weekly is shown in chronological order through this edition, published on August 17, 2026.
Part of the Macro Weekly series — view all 6 editions
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Authors / Editors
Reported Data Context
- Current Account Balance: -92.3 JPY billion (2026-06) · Source: Bloomberg
- Corporate Goods Price Index (CGPI): 7.2 % YoY (2026-07)
- Yen-denominated Import Price Index: 29.1 % YoY (2026-07)
- BOJ Policy Rate: 1.0 % (2026-07) · Source: Bank of Japan
- Terminal BOJ Policy Rate Forecast: 1.75 % (2027-06) · Source: Mizuho Securities Fixed Income Research
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