Japanese Yen reverses earlier gains as US Dollar firms after PCE data

The Japanese Yen (JPY) lost its earlier gains against the US Dollar (USD) on Wednesday, as traders responded to fresh US inflation data. The headline Personal Consumption Expenditures (PCE) Price Index climbed 0.2% month-over-month (MoM) in July, surpassing the 0.1% forecast, which reversed the 0.1% dip seen in June. On an annual basis, headline inflation remained unchanged at 3.7%, exceeding market expectations of 3.6%.

The core PCE Price Index, the Federal Reserve's preferred gauge of underlying inflation, also ticked up 0.2% MoM, matching forecasts but up from June's 0.1% rise. Annual core inflation, too, stayed static at 3.3%. The US Dollar Index (DXY), gauging the Greenback's value against six major currencies, traded around 99.17, up roughly 0.25% on the day.

Markets estimate a 65% chance the US central bank will hold interest rates steady in September, per the CME FedWatch Tool. The Bank of Japan (BoJ) is expected to increase rates at its September meeting, with 57% of surveyed economists expecting a hike from 1.00% to 1.25%. Despite this, BoJ rate hike expectations are not bolstering the Japanese Yen, as concerns about Japan's fiscal situation dominate sentiment.

These worries have also muted the lasting impact of recent joint Yen-buying interventions by Japan and the United States, causing USD/JPY to drift back toward the 160 psychological level. Rabobank's FX strategists point out that Japan's policy stance has changed, with "the government now supportive of tighter monetary policy." However, they caution that this alone will not trigger a sustained Yen recovery.

For the Yen to strengthen, the market will likely need clear evidence of a more proactive BoJ stance, alongside reassurances about Japanese government bond (JGB) supply. Meanwhile, fiscal concerns are expected to linger until the 2027 budget negotiations and potentially beyond.