USD to JPY: What Moves the Dollar-Yen Rate
The USD/JPY rate — how many yen one dollar buys — is one of the world’s most-traded pairs, and it behaves differently from most.
The interest-rate gap
For years Japan kept interest rates ultra-low while other countries raised theirs. That gap makes the yen a favourite “funding currency”: investors borrow cheap yen to invest elsewhere, which tends to weaken the yen and push USD/JPY up. When Japan’s rates rise or others fall, the move can reverse sharply.
The safe-haven twist
Oddly, the yen — like the Swiss franc — is a safe haven. In a global panic, money flows back into yen, strengthening it even when Japan isn’t the story. So USD/JPY often falls in risk-off moments.
Intervention
Japan’s authorities occasionally step into the market to prop up the yen when it falls too far, too fast. These interventions can cause big, sudden swings.
Get the live rate
See the current dollar-yen rate on our USD to JPY page. For the broader mechanics, read the yen carry trade explained.