I've been watching the yen's trend lately, and it still feels quite weak. By mid-May, USD/JPY was fluctuating between 155 and 158, and the effective exchange rate has already fallen to its lowest in nearly 53 years. This depreciation has been pretty aggressive.

After taking a closer look at the reasons behind it, mainly it's because the US-Japan interest rate differential remains wide, the Bank of Japan is raising rates too slowly, and the Federal Reserve is holding steady. Plus, Japan's government is under heavy fiscal deficit pressure, and economic fundamentals are weak. Global arbitrage trading is still ongoing, and these factors combined have kept the yen under pressure. The uncertainty in the Middle East also hasn't helped, directly impacting Japan's energy costs.

But there's a potential turning point worth noting. The market generally expects the Bank of Japan to raise interest rates to 1.0% in June. If that happens, the US-Japan interest rate gap will start to narrow, and arbitrage capital might flow back. According to institutional forecasts, JPMorgan is more pessimistic, thinking the rate could fall to 164 by year-end, while BNP Paribas expects around 160.

Honestly, for the yen to truly surge, internal reforms in Japan are still necessary. Relying solely on rate hikes by the central bank isn't enough; economic growth needs to pick up, and wages and prices need to establish a healthy cycle. In the short term, the yen might still fluctuate between 152 and 160, but long-term, such extreme depreciation probably won't last forever. If you're planning yen investments, consider dollar-cost averaging and avoid buying all at once to reduce risk.