Yen jumps 3% vs dollar amid suspected intervention

The Japanese yen surged dramatically against the U.S. dollar on Thursday, July 30, 2026, in a sharp move that financial analysts widely attributed to official intervention by Tokyo to support its currency. The dollar fell by as much as 3% to 158.34 yen, marking its largest single-day drop since late 2022 and retreating from four-decade highs reached earlier in the week.

The sudden appreciation occurred amid heightened market vigilance for action by Japanese authorities, who have warned for months that currency weakness is exacerbating the cost-of-living impact of soaring energy import prices. The move came ahead of a scheduled Bank of Japan policy meeting on Friday and followed a Federal Reserve meeting the previous day that left U.S. interest rates unchanged, contributing to a broader slide in the dollar.

Currency analysts suggested a confluence of factors provided a favorable backdrop for intervention, including month-end positioning by traders, weaker-than-expected U.S. economic data, and a soft dollar environment. The Japanese finance ministry's foreign exchange division, which directs any intervention, could not be reached for immediate comment. Finance Minister Satsuki...