Japanese Yen Faces Limited Upside as Trade and Investment Flows Weaken, Warns BNY

The Japanese yen is unlikely to see sustained gains in the near term as underlying trade and investment flows continue to deteriorate, according to a new analysis from BNY Mellon. The bank’s foreign exchange strategists point to weakening current account fundamentals and a persistent outflow of capital from Japan as key headwinds for the currency.

Deteriorating Flow Dynamics Pressure the Yen

BNY’s assessment highlights a structural shift in Japan’s balance of payments. While the country has historically run a large current account surplus — supported by exports and overseas investment income — recent data shows a narrowing surplus and, at times, deficits on the trade balance. This reduces the natural buying pressure for the yen from export proceeds and repatriation flows.

Additionally, Japanese investors continue to seek higher yields abroad, a trend known as the ‘carry trade.’ With domestic interest rates remaining near zero even after the Bank of Japan’s (BoJ) modest rate hikes, institutional investors such as pension funds and life insurers are allocating more capital to foreign bonds and equities. This outflow of yen for foreign currency purchases adds downward pressure on the exchange rate.

BoJ Policy Divergence and Global Rate Context

The BoJ’s gradual normalization path stands in stark contrast to the aggressive tightening cycles of the Federal Reserve and the European Central Bank over the past two years. Although the BoJ raised its policy rate to 0.5% in early 2025, the interest rate differential with the US remains wide, making the dollar more attractive for yield-seeking investors.

BNY analysts note that even if the BoJ signals further rate hikes later this year, the pace is expected to be slow and data-dependent. Markets have already priced in a gradual adjustment, limiting the potential for a sharp yen rally based on policy expectations alone.

What This Means for Traders and Investors

For currency traders, BNY’s analysis suggests that rallies in the yen are likely to be sold into, especially if global risk appetite remains stable. The yen has historically acted as a safe-haven currency, but its recent correlation with risk sentiment has weakened. Instead, it is increasingly driven by yield differentials and capital flow patterns.

Importers and businesses with yen exposure may face continued volatility, with the bias tilted toward a weaker yen in the medium term. Export-oriented Japanese companies, however, may benefit from a weaker currency as it boosts the value of overseas earnings when repatriated.

Conclusion

BNY’s analysis reinforces the view that the Japanese yen’s upside is structurally capped by deteriorating flow dynamics. While occasional safe-haven bids or BoJ intervention could trigger short-term spikes, the underlying trend favors a weaker yen as long as Japan’s investment outflows exceed its current account inflows. Traders should monitor Japan’s monthly balance of payments data and BoJ communication for shifts in this outlook.

FAQs

Q1: Why is BNY bearish on the Japanese yen?
BNY cites deteriorating trade and investment flows, including a narrowing current account surplus and persistent capital outflows from Japanese investors seeking higher foreign yields, which reduce demand for the yen.

Q2: How does the Bank of Japan’s policy affect the yen?
The BoJ’s slow and gradual rate normalization keeps Japanese interest rates low relative to the US and Europe, maintaining a wide yield differential that encourages yen selling for higher-yielding foreign currencies.

Q3: Could the yen strengthen despite these headwinds?
Yes, but gains are likely limited. Safe-haven demand during global market stress or direct BoJ intervention could trigger short-term rallies, but BNY sees the structural flow deterioration capping sustained upside.