Yen Strengthens on BOJ Hike Bets: USD/JPY Pressured — MUFG

The yen traded near 159.04261 against the dollar, supported by growing expectations of a Bank of Japan rate hike, and strengthened against most G10 currencies. MUFG analyst Derek Halpenny noted that the yen is gaining as markets increasingly price in a September BOJ move, with service-sector PPI data and hawkish comments from a former BOJ official reinforcing tightening expectations.

**Hike Expectations Fuel Yen Strength**

Market pricing for the BOJ's policy path is adjusting rapidly. Overnight swaps now imply roughly a 72% probability of another rate increase before October. Hawkish remarks from a former central bank official, combined with service-sector PPI data, have significantly boosted expectations for a September hike. Okasan Securities bond strategist Kimura said that given Japan is acting in cooperation with the U.S. to prevent yen weakness, whether the BOJ can afford to skip a September hike has become a key question.

**External Pressure and Policy Shift**

The U.S. has expressed clear support for Japan's monetary policy normalization. Market sources indicate U.S. officials are backing decisive Japanese measures to correct the severely undervalued yen, as well as supporting BOJ rate hikes. Japan's Vice Finance Minister for International Affairs Mimura Atsushi also stated that the government will align its currency policy with the BOJ's monetary policy, hinting at the possibility of a near-term rate increase. Analysts believe such external political pressure is compressing the BOJ's room to delay tightening.

**Jackson Hole in Focus**

Upcoming remarks from BOJ officials and a potentially cautious stance from the Fed at the Jackson Hole symposium are seen by MUFG analysts as potential catalysts for further USD/JPY downside. However, HSBC analysts cautioned in a note that unless the BOJ significantly accelerates the pace of hikes, the government adopts a clearer stance on the yen, and fiscal expansion is curtailed, they remain skeptical of a sustained downtrend in USD/JPY. UBS strategists similarly argued that Japan's current policy mix is unlikely to consistently drive yen strength, with support stemming mainly from intervention risk rather than fundamental improvements in domestic monetary conditions.