USD/JPY pressured as Japan 2-year yield hits 31-year high, carry trade costs rise

Japan's 2-year government bond yield has climbed to a 31-year high, marking a structural shift in the funding cost of the yen carry trade. For years, near-zero Japanese rates allowed investors to borrow cheaply in yen and deploy capital into higher-yielding assets abroad, including US Treasuries, equities and risk assets such as Bitcoin. Rising short-end JGB yields narrow that differential and make the strategy progressively less profitable, raising the risk of unwinding flows that mechanically bid the yen higher. Such episodes have historically produced sharp, disorderly declines in USD/JPY alongside broad de-risking across high-beta assets, with the August 2024 unwind serving as the reference template. The move reflects market expectations that the Bank of Japan will continue normalising policy, a direct contrast with the Federal Reserve's easing bias. Traders should monitor whether further JGB yield gains coincide with declines in USD/JPY and yen crosses such as AUD/JPY and EUR/JPY, which typically bear the brunt of carry unwinds. Elevated volatility risk warrants tighter position sizing in yen-funded trades.