Bank of America Warns of Japan Sell-Off Risk as Short Yen Positions Mount

Speculative short positions against the Japanese yen are approaching levels last seen in July 2024, creating significant risks for a market sell-off, Bank of America said in a research note Monday. The analysis follows the release of Japan’s balance of payments data for May and international securities transaction figures for June from the Ministry of Finance.

Foreign Investors Retreat

Bank of America highlighted several indicators pointing to mounting pressure on Japanese assets. After a period of significant inflows, foreign investors turned into net sellers of both Japanese bonds and equities in June.

Other key market signals include:

• CME short yen positions are nearing the highs recorded in July 2024.
• The one-year USD/JPY risk reversal has moved into positive territory for the first time since 2022, indicating a higher premium for bets on yen weakness.
• Yen carry trades appear to be gradually building, with yen selling largely concentrated in offshore markets outside of Tokyo trading hours.

Underlying Market Pressures

The report attributes the speculative yen selling to growing market attention on Japan's fiscal concerns and a perception that the Bank of Japan has fallen behind the curve on monetary policy. This has overshadowed positive underlying economic trends.

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Despite the bearish sentiment, Bank of America noted that Japan's underlying balance of payments continues to improve. Stronger exports, increasingly supported by demand related to artificial intelligence, are helping to offset the country's deficit in digital services.

Catalysts for a Reversal

Analysts at the firm identified three potential catalysts that could trigger a rapid unwinding of these short yen positions, which would likely lead to a sharp appreciation of the currency.

These triggers include:

• Foreign exchange intervention of a greater magnitude than the market currently anticipates.
• A significant reversal of the AI-driven rally in global equity markets.
• A policy shift by the Takaichi administration in response to sustained market pressure.