After the Bank of Japan's rate hike, the yen's trend has reversed, and the 2026 rate hike expectations have changed

The Bank of Japan’s decision meeting on December 19 brought a policy shift, but the market reaction was unexpected. The central bank raised the benchmark interest rate by 25 basis points to 0.75%, reaching a new high since 1995, but the yen against the US dollar was under pressure afterward, with limited room for appreciation.

Insufficient Central Bank Policy Signal Release, Market Expectations Fall Short

Governor Ueda Haruhiko’s remarks at the post-meeting press conference sparked differing interpretations in the market. The central bank confirmed in its statement that it would continue to raise rates if economic and inflation outlooks meet expectations, but provided little detail on the timing and magnitude of future rate hikes. Governor Ueda emphasized the difficulty in pre-determining the neutral interest rate level and left room for revisions to the estimated neutral rate range (1.0%~2.5%). This ambiguous forward guidance has introduced uncertainty into market perceptions of the central bank’s future steps.

Spread and Foreign Capital Flows as Key Factors in Exchange Rate Movements

ANZ Bank strategist Felix Ryan pointed out that the fundamental reason for the widening of the USD/JPY exchange rate is the interest rate differential environment. Although the Bank of Japan has initiated a rate hike cycle, the Federal Reserve remains accommodative, and the widening interest rate gap continues to pressure the yen. It is expected that the Bank of Japan will further raise rates in 2026, but the short-term change in the interest rate differential is unlikely to be fundamental, with a forecast that USD/JPY will reach around 153 by the end of the year.

Fidelity Investment strategist Masahiko Loo added that the Fed’s policy stance, combined with Japanese investment institutions increasing their foreign exchange hedging ratios from historically low levels, further consolidates the dollar’s upward momentum. The firm maintains a medium-term USD/JPY target of 135-140, reflecting the structural disadvantages faced by the yen amid rate hike prospects.

Divergence in Market Perception of Rate Hike Pace

Overnight index swap market data shows that traders generally expect the Bank of Japan to raise rates to 1.00% by Q3 2026. Nomura Securities pointed out that for the market to develop a truly hawkish expectation, the central bank needs to release clearer signals—such as indicating that the next rate hike could occur earlier than April 2026. In the absence of such explicit guidance, it is difficult for the governor to alter market expectations regarding the terminal rate.

Outlook and Risks

The outlook for the yen faces multiple variables. On one hand, the rate hike cycle has begun; on the other hand, factors such as the interest rate differential structure, global policy environment, and investor risk aversion also determine the exchange rate trajectory. Market expectations for continued rate hikes by the Bank of Japan in 2026 are already relatively priced in, and future performance will depend on whether the central bank can surpass market expectations or external conditions change. Given the relatively moderate policy signals at present, the short-term downward pressure on the yen may persist.