USD/JPY Stays Supported, but Japan Intervention Risk Limits the Rally

Quick Take

USD/JPY is still supported, but it is no longer an easy one-way dollar trade. Reuters reported that the dollar was around 156.15 yen on 7 May after a sharp yen rebound linked to suspected Japanese intervention, while Tokyo’s top currency diplomat said Japan faces no limit on how often it can intervene in the FX market.

What Is Supporting USD/JPY

The first support still comes from the U.S.-Japan rate gap. The Federal Reserve kept the federal funds target range at 3.50%–3.75% on 29 April and said inflation was elevated, partly reflecting higher global energy prices. It also said Middle East developments were contributing to a high level of uncertainty around the economic outlook.

That matters because the dollar still has yield support. As long as the Fed does not move toward a clear easing cycle, traders have less reason to abandon long-dollar positions aggressively.

Why the Yen Is Still Vulnerable

The yen is still pressured by Japan’s low-rate structure. Reuters reported that the Bank of Japan kept its policy rate at 0.75%, while yen shorts had been rebuilt aggressively as investors tested how far Japanese authorities would tolerate weakness in the currency.

That keeps the carry trade alive. When traders can still borrow yen at lower rates and hold higher-yielding currencies, USD/JPY tends to find buyers on dips.

Why the 160 Area Has Become Dangerous

The problem is that Japan is now pushing back much harder. Reuters reported that money-market data suggested Japanese authorities sold about $35 billion to support the yen, and that officials used thin holiday trading to amplify the impact of intervention.

Japan’s finance minister also warned against speculative FX moves, while traders were reportedly standing by for possible intervention orders during the Golden Week holiday period. This means the market can no longer treat 160 as a normal technical level. It has become a policy-risk zone.

BOJ Dissent Adds Another Risk

The BOJ is still cautious, but it is not fully dovish. Reuters reported that three of the nine BOJ board members called for a rate hike to 1.0% at the latest meeting, even though the bank ultimately kept rates unchanged at 0.75%.

This matters for USD/JPY because a more divided BOJ makes yen weakness harder to chase. The market may still see Japan as a low-yield economy, but it also has to respect the possibility that the BOJ is slowly moving toward another hike.

Near-Term View

My near-term view is that USD/JPY can remain supported above recent lows, but fresh upside will likely be unstable. The Fed still gives the dollar yield support, and Japan’s real rates remain low. However, any move back toward the 158–160 zone may attract heavier verbal intervention, suspected official action, or profit-taking from crowded yen-short positions.

Conclusion

The main point is simple: USD/JPY still has support, but the trade has become politically expensive. The rate gap favours the dollar, yet Japan is making it clear that excessive yen weakness will not be ignored. That means USD/JPY may stay firm, but chasing rallies near 160 now carries much higher headline risk.