Yen Surges Past Intervention Peak Amid Expectations of Stronger BOJ Response

The yen surged past its intervention peak, reaching levels not seen since late February. The currency jumped to 154.56 per dollar after touching a low of 160.39 just the previous week.

This move has significant implications for markets, as it signals a shift in policy expectations and official signaling. Traders are now re-pricing the odds of a stronger Bank of Japan response, particularly with the BOJ's September 17-18 meeting approaching.

The speed of the rebound was notable, with the yen gaining 1.1% in just one day. This rapid move exposed how crowded the trade had become, and once markets began to think the BOJ may be less tolerant of weakness, the exit became busy.