The USD/JPY currency pair has seen a decrease after reaching 148.57 earlier. This follows the resignation of Japanese Prime Minister Ishiba, which had been anticipated but is still impacting markets.

The pair opened higher but is now closing the gap as European markets begin trading, moving from 148.00 to 147.60. Traders are focused on how this political change will affect the Bank of Japan’s rate plans.

Political Instability and Market Concerns

Ishiba’s resignation could introduce political instability affecting the Bank of Japan’s decisions, although no immediate concerns should arise. Japan’s ruling LDP party is set to find a replacement, as they work on improving public perception before the 2028 elections.

Despite the resignation, the Bank of Japan is expected to maintain its policy operations smoothly. Although the situation might influence public sentiment, Japanese stocks remain positive.

With Prime Minister Ishiba’s resignation over the weekend, we saw USD/JPY gap higher to 148.57 before retreating back towards 147.60. The initial market reaction assumed this political news would delay the Bank of Japan’s planned rate hikes. This knee-jerk move is creating a potential opportunity for traders as the gap begins to close.

The initial fear of political instability stalling the BOJ seems overblown, suggesting the yen’s weakness will be short-lived. We believe the BOJ can and will conduct its policy independently from the ruling LDP party’s leadership changes. Fading this overreaction by anticipating a stronger yen in the near term appears to be a logical strategy.

Monetary Policy Divergence

This view is supported by recent data showing Japan’s core inflation for August 2025 came in at 2.9%, remaining stubbornly above the BOJ’s 2% target for over a year. Furthermore, BOJ Governor Ueda hinted just last month at the need to normalize policy before the end of the year. These fundamental factors are much stronger drivers for the yen than a predictable change in political leadership.

Looking back, we saw a similar situation when Prime Minister Abe resigned in August 2020. After some initial volatility, the yen’s direction was ultimately dictated by monetary policy divergence, not the political shuffle in Tokyo. History suggests that fundamental economic pressures will quickly overshadow the current political noise.

For derivative traders, this temporary spike in uncertainty has pushed up one-month implied volatility for USD/JPY to over 11%, a significant jump from the 8% average seen in August 2025. This makes buying USD/JPY put options an interesting play to capitalize on a potential move back down as the political dust settles. Selling out-of-the-money call spreads could also be a viable strategy to bet against further significant upside.

However, we must remember the other side of the currency pair is driven by the US Federal Reserve. Fed meeting minutes from late August 2025 confirmed a continued hawkish stance, with policymakers prepared to hold rates higher for longer to combat persistent service-sector inflation. This underlying policy divergence will likely provide a floor for USD/JPY, limiting how far the pair might fall.

Create your live VT Markets account and start trading now.