Yen Hits 40-Year Low Against Dollar at 162 Yen Per USD

The Japanese yen has fallen to its lowest level against the US dollar since late 1986, with 100 yen now worth only 62 cents. The currency's weakness stems from Japan's reliance on dollar-priced energy imports and a significant interest rate gap between Japan and the US. Japan maintains a benchmark rate of about 1% — a 30-year high domestically but far below US rates — amid concerns over the country's substantial debt burden.

Energy Import Costs Drive Yen Weakness

Japan imports most of its energy, and oil is priced in dollars. When oil prices rise, Japanese companies need more dollars to pay for energy — so they sell yen to get greenbacks. For Americans, one dollar now buys 162 yen.

Interest Rate Gap and Debt Management Shape Currency Policy

Japan's benchmark rate stands at about 1% — a 30-year high for the country but far below US rates. This gap draws more investor demand for dollars than yen. Japan has an enormous amount of debt, and some argue that it is trying to keep rates low to manage the situation.

Japanese Authorities Previously Intervened in Currency Markets

Japanese authorities stepped in earlier this year to prop up the currency by selling dollars and buying more yen.

Stock Market Boom Fails to Strengthen Yen

The weaker yen comes even as the Japanese stock market is booming on the AI trade. According to the Financial Times, traders buying Japanese equities are also hedging their exposure to the yen, which can add to the selling pressure.

FAQ

What caused the yen to fall to a 40-year low? The yen's decline is driven by Japan's need to purchase dollar-priced energy imports and a significant interest rate differential between Japan (about 1%) and the US, which increases investor demand for dollars over yen.

Why doesn't Japan's stock market boom strengthen the yen? According to the Financial Times, traders buying Japanese equities are hedging their exposure to the yen, which adds to the selling pressure on the currency despite the stock market's strong performance.