Japan intervenes after USD/JPY breaks 160

Japan's Ministry of Finance sold U.S. dollars and bought yen on April 30 and May 1 after USD/JPY breached the 160.00 level. Initial market estimates put the scale of the intervention at more than $30 billion. The yen strengthened about 2.2%, and the exchange rate moved toward the 156.00 area.

The operation began late in the week when the pair crossed the psychological 160.00 mark. Officials carried out dollar sales and yen purchases to counter speculative pressure and large moves in the exchange rate. The immediate market reaction was a sharp drop in USD/JPY from around 160 to the mid-150s.

On the daily chart, price action shows a rejection at 160.00 and a move back below short-term averages. The pair traded under the 50-day moving average near 158.58 and the 100-day moving average near 157.28. A horizontal support level sits near 157.89. The daily RSI retreated from overbought readings. A longer-term ascending trendline near 154.50 and the 200-day moving average around 154.00 remain technical supports.

Intraday charts reflect the speed of the adjustment and subsequent consolidation. On the four-hour chart, USD/JPY fell from about 160.00 to a low near 155.50 and then consolidated between roughly 156.27 on the downside and 157.89–158.00 on the upside. Shorter moving averages on intraday charts shifted lower and were acting as resistance. The one-hour chart showed a series of higher intraday lows after the drop while the pair continued to trade below the 50-period moving average, indicating relief rallies faced selling pressure.

Market observers pointed to a similar intervention in 2024. Authorities then executed dollar sales estimated at more than $30 billion during a holiday period and drove USD/JPY down to about 152. Within two months the dollar recouped those losses as factors such as higher energy costs, the Bank of Japan stance and a comparatively hawkish U.S. Federal Reserve influenced the exchange rate. OANDA market analyst Zain Vawda noted that the earlier campaign did not reverse the longer-term trend and effectively “bought time.”

Traders identified immediate technical reference points at 157.89–158.00 for resistance and 156.27 for support. Market commentary and price action indicated higher volatility and the potential for gaps as participants assessed the likelihood of further official action and the impact of broader economic drivers.

Official intervention figures are typically released later; market estimates and trading data have been used to calculate the scale and impact of the April 30–May 1 operations.