USD/JPYUS Dollar / Japanese Yen

What moves USD/JPY

USD/JPY is quoted as the number of yen one dollar buys, so a rising number means a weakening yen — the opposite of the intuition most readers bring to a chart. It tracks the gap between US and Japanese long-term yields more closely than almost any other major pair, because for two decades Japan held policy rates at or below zero while the rest of the developed world did not.

That gap made borrowing in yen to hold higher-yielding assets — the carry trade — a standing feature of the market rather than an occasional one, and it is why the pair moves in bursts. A carry position earns slowly and unwinds quickly, so positions built over months can close in days when the yield gap narrows or risk appetite drops. The yen’s sharp appreciation in early August 2024, after the Bank of Japan raised rates and US payrolls came in weak, forced exactly that kind of unwind across global markets.

One more thing separates this pair from the others: currency intervention in Japan is decided by the Ministry of Finance, not the Bank of Japan, and it has acted in the modern era — in 2022 and again in 2024. Officials have consistently described the trigger as the speed of a move rather than its level, which is worth knowing because it means no particular rate is itself the line.

Last updated 2026-08-26.

The policy backdrop

Central bankPolicy rateNext decision
Federal Reserve3.50–3.75%16 Sep 2026
Source: Federal Reserve policy decisions, from our own Fed tracker.

Only one leg is shown because we hold the Federal Reserve and the Bank of England and no other central bank. A rate differential needs both, so it appears on GBP/USD alone rather than being estimated here.

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