Citi: Japanese Equity Rally Driving Yen Weakness Through Hedging

The persistent weakness in the Japanese yen is being directly driven by the historic rally in the country's equity markets, as investors sell the currency to hedge their rising stock portfolios, according to an analysis by Citi.

Equity Gains Fuel Hedging Pressure

Citi analysts note that as Japanese stock indexes have climbed to record levels, both domestic and overseas investors are engaging in yen-selling transactions. This activity is linked to portfolio rebalancing and, crucially, currency hedging.

When the value of Japanese equity holdings increases, investors often sell the yen to mitigate the risk of currency fluctuations on their returns. According to the bank, this dynamic will likely maintain downward pressure on the yen as long as the stock market's strong performance continues.

Outlook and Policy Levers

Looking ahead, Citi stated that if the pace of equity gains were to slow, the necessity for yen-sale hedging would be reduced, which could ease the selling pressure. The firm identified ¥165 per dollar as a critical level to watch in the near term.

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According to the analysis, two main factors could reverse the yen's weakness under these conditions:

• An acceleration of monetary policy normalization by the Bank of Japan.
• Direct currency market intervention by Japan's Ministry of Finance to buy the yen.

Despite the current headwinds, Citi noted its long-term bullish scenario for the yen remains largely unaffected by the equity market's rise.

Broader Context

The yen has been under significant pressure for an extended period due to the wide divergence in monetary policy between Japan and other major economies. The Bank of Japan has maintained its ultra-loose policy while other central banks, notably the U.S. Federal Reserve, have aggressively tightened, creating a significant interest rate differential that weighs on the Japanese currency.