Bank of America Warns of Japan Sell-Off Risk Amid Stretched Yen Short Positions

Bank of America has highlighted a growing risk of a sell-off in Japanese markets, citing an analysis of recent financial data. In a report released Monday, the firm noted that speculative short positioning against the Japanese yen is approaching levels last seen in July 2024. This development coincides with data showing foreign investors became net sellers of both Japanese bonds and equities in June, reversing a trend of previous inflows.

The report points to several indicators suggesting a buildup in yen carry trades, where investors borrow in a low-interest-rate currency to invest in higher-yielding assets. According to BofA, CME short yen positions are near their 2024 highs, and the one-year USD/JPY risk reversal, a measure of market sentiment, has moved into positive territory for the first time since 2022. The analysis suggests this yen selling is primarily driven by offshore markets.

Analysts at the bank attribute the speculative pressure on the yen to growing market attention on Japan's fiscal concerns. There is also a perception that the Bank of Japan has fallen "behind the curve" with its monetary policy compared to other major central banks, which has reportedly contributed to the currency's weakness.

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Despite the selling pressure, the report also observes that Japan's underlying balance of payments continues to show improvement. Stronger export growth, supported by global demand for AI-related products, is increasingly helping to offset the country's deficit in digital services.

Bank of America identified three potential catalysts that could trigger a rapid unwinding of these short yen positions, which could lead to a sharp rally for the currency. These include foreign exchange intervention of a greater magnitude than the market currently anticipates, a significant reversal of the ongoing AI-driven stock market rally, or a policy shift by the Takaichi administration in response to market pressure.