Rate Hike Impact on Nikkei 225: SMFG and Key Stocks — Backtest Data

Today's Market Focus: Rate Hike

"外為17時 円相場、大幅反落 158円台前半 日銀利上げ加速観測が後退" — Rate Hike is dominating Japanese financial headlines today. This article analyzes how this macro development specifically impacts Nikkei 225 stocks, using Kabu Prediction's 10-year backtest data (2016–2026) to identify which stocks show the strongest statistical response.

Today's Rate Hike Headlines

• 外為17時 円相場、大幅反落 158円台前半 日銀利上げ加速観測が後退
• ドル/円の10月見通し 「日米ともに利上げ見送りへ、次回は12月の公算」
• 日銀追加利上げでむしろ強まる“円安圧力”、ドル円相場「150円台半ば～160円前後」で推移の可能性
• 米ドル円、160円超での上振れ余地は限定的 円買い介入が10月利上げへのカタリストとなる可能性 野村證券・後藤祐二朗
• コラム：日銀の利上げでも消えない円安リスク、協調介入に残る「構造的限界」＝内田稔氏

Rate Hike and the Nikkei 225: The Quantitative Relationship

Macro variables like Rate Hike are among the most powerful drivers of Nikkei 225 stock prices. Kabu Prediction's SHAP analysis shows that macro drivers explain 30–60% of price movements for many Nikkei 225 stocks. Understanding this relationship quantitatively — rather than relying on intuition — is the key to rule-based investing.

Stock Spotlight 1: SMFG (8316)

According to Kabu Prediction's 10-year backtest: SMFG (8316) has a 1-week win rate of 73.7%, edge of +14.0%, and Sharpe ratio of 0.0. The dominant driver is "technical", with "momentum_negative_20d" as the best-performing rule (133 signals). Full analysis: https://kabu.microforge.works/stocks/8316

Stock Spotlight 2: Mizuho FG (8411)

Mizuho FG (8411): 1-week win rate 58.0%, edge +18.1%, Sharpe 0.0. Best rule: "BB_upper_touch" (112 signals). https://kabu.microforge.works/stocks/8411

Stock Spotlight 3: MUFG (8306)

MUFG (8306): 1-week win rate 73.2%, edge +16.0%. https://kabu.microforge.works/stocks/8306

What Is Kabu Prediction?

Kabu Prediction (https://kabu.microforge.works) is a free platform that analyzes all Nikkei 225 stocks using 45 AI-discovered statistical rules. Unlike black-box AI models, every rule's condition, win rate, edge, and backtest data is fully disclosed. No registration required.

How to Read Win Rate and Edge

"Win rate" = the percentage of times the rule correctly predicted the direction of price movement. "Edge" = excess return above what you'd get by always holding (baseline). A win rate above 50% combined with a positive edge indicates a statistically advantaged rule.

The 4-Horizon Framework

Kabu Prediction analyzes each stock across four time horizons: 3 trading days, 1 week, 1 month, and 3 months. For macro-driven topics like Rate Hike, the 1-month and 3-month horizons tend to show higher edge as the macro effect takes time to fully materialize in earnings and valuations.

Backtest Methodology

All backtests include 0.1% commission, 0.1% slippage, 20.315% capital gains tax, lot-size constraints (100-share units), and no overlapping positions in the same stock. These realistic conditions prevent overestimation of returns.

Summary

Today's trending topic "Rate Hike" has quantifiable implications for Nikkei 225 stocks. SMFG (73.7% win rate, +14.0% edge) and Mizuho FG (58.0%) show strong statistical performance in relevant rule categories. Explore all data free at https://kabu.microforge.works

Disclaimer

This article presents statistical analysis results from Kabu Prediction and does not constitute investment advice or a recommendation to buy or sell any financial instrument. All win rates and edge figures are historical backtest results and do not guarantee future performance. All investment decisions are made at your own risk.