The wide U.S.-Japan policy rate gap, with the Fed at 3.75-4.00% versus the BoJ at 1.25%, remains the dominant driver of USD/JPY positioning near 158.00 as of mid-October 2026. Hotter-than-expected September U.S. CPI at 3.7% headline lifted near-term Fed hike odds, while the BoJ’s September lift to 1.25% and December hike pricing around 75-85% keep the differential supportive of dollar strength. Japanese authorities’ repeated intervention warnings since the July coordinated action cap upside near 160, prompting profit-taking on approaches. Key near-term catalysts include the October 28 FOMC and October 29-30 BoJ meetings, alongside U.S. inflation and jobs data that could shift rate expectations and volatility.