Japan conducted foreign exchange market intervention to strengthen the yen on 30–31 July 2026, with Bloomberg Markets reporting that the yen advanced as much as 3.3% against the dollar in New York trading on Thursday. The move represented the yen's largest single-day appreciation against the dollar in over two years, according to Bloomberg Markets. The intervention preceded a Bank of Japan monetary policy decision, adding to the significance of the timing.
USD/JPY fell sharply across the intervention period, breaking below key technical levels including the 200-hour moving average, with the pair declining to 160.31 on 30 July from levels above 163, according to Finnhub. The 3.3% intraday yen advance reported by Bloomberg Markets on 31 July reflected the scale of the official action in currency markets.
USD/JPY is the primary instrument directly affected, as it is the exchange rate at which Japanese authorities sold dollars and bought yen during the intervention operation. The pair's move of several figures over the two-day period reflects the direct mechanical impact of official yen purchases.
South Korea's finance ministry confirmed close coordination with US and Japanese counterparts following the intervention, according to Bloomberg Markets, suggesting multilateral involvement in managing regional currency volatility. Japanese authorities neither confirmed nor denied the intervention publicly, while officials suggested potential support from overseas counterparts including US authorities, Bloomberg Markets reported.
Sources: Bloomberg Markets, investinglive.com