Dow Jones Top Markets Headlines at 3 AM ET: Yen Falls to 40-Year Low Versus Dollar, Traders Alert for Potential FX Intervention | Why ...

Japan’s yen slid to a 40-year low versus the U.S. dollar, prompting traders to watch for potential FX intervention as Japanese Finance Minister Satsuki Katayama renewed a pledge to curb excessive yen volatility. The market backdrop also included cross-asset themes: Wall Street’s resilience despite expensive stocks, and a June rate move by the European Central Bank explained by projections rather than an “insurance hike,” according to ECB President Christine Lagarde. Separately, the U.S. Supreme Court blocked President Trump from firing Federal Reserve Governor Lisa Cook, reinforcing that presidential authority has limits over independent agencies. In China, manufacturing activity expanded, supported by strong export demand. Meanwhile, U.S. and Iran agreed to halt days of fighting over the Strait of Hormuz and resume peace talks aimed at a long-term deal. The Dow Jones Newswires item is dated June 30, 2026, at 03:15 ET.