Japan and the United States stepped in together on Wednesday to stabilize currency markets, and the move worked — at least for now. The yen climbed sharply against the dollar after the two governments coordinated a large-scale purchase of yen, pushing the exchange rate from 145 yen per dollar to 140. Frequently Asked Questions What did the Japan-US currency intervention achieve? The joint intervention pushed the yen from 145 yen per dollar to 140 yen per dollar, relieving some pressure on Japan’s import costs and calming immediate market volatility. Japan’s Ministry of Finance said additional measures have not been ruled out, but no specific timeline or threshold for further action has been announced.