Japan and the US have confirmed that they jointly intervened last week to halt a slide in the yen after it weakened to a fresh 40-year low. The joint intervention is the first since 2011, when both countries took coordinated action to weaken the yen after the devastating earthquake and tsunami that hit eastern Japan.
TOKYO — The U.S. dollar weakened sharply Monday against the Japanese yen after U.S. President Donald Trump and Japan’s finance minister confirmed both sides had intervened in markets. Before late last week, the dollar was trading above 163 yen, touching 40 year highs. After regulators were suspected of stepping in, it fell below 160 yen.