USD/JPY Pair Retreats as Investors Await PCE Data Amid Rising Expectations of Japanese Rate Hikes

The USD/JPY pair has been experiencing minor fluctuations as investors await PCE data for direction. The pair retreated to around 159 during Asian trading hours on Wednesday, weakening from its previous highs.

Market participants are currently repositioning along two main lines: first, the U.S. Treasury's expansion of long-term Treasury buyback operations has suppressed long-term U.S. yields, thereby diminishing the interest rate advantage of the U.S. dollar; second, rising expectations that the Bank of Japan will further tighten policy have provided new fundamental support for the yen.

U.S. Treasury Secretary Scott Bessent previously stated that the U.S. Treasury would increase the size of its Treasury buyback operations to at least $4 billion per session, up from the previous cap of $2 billion, with the aim of alleviating the rapid rise in long-term financing costs.

Consequently, market attention has shifted to whether the Treasury will utilize its nearly $1 trillion balance in the Treasury General Account to fund the expansion of long-term Treasury buybacks. This could potentially lower long-end yields and narrow the yield advantage of the United States over Japan, exerting downward pressure on USD/JPY.

Expectations for a rate hike at the Bank of Japan's September 18 meeting have intensified significantly, with approximately 57% of economists anticipating a rate hike in September. This could further strengthen forecasts for a narrowing U.S.-Japan interest rate differential and provide support for the yen.