Markets on edge as fresh U.S.-Iran attacks dent optimism over a peace deal

Veiled pro-government supporters stand in a line under a banner depicting portraits of Iran's late Supreme Leader Ayatollah Ali Khamenei and Ayatollah Mojtaba Khamenei, as they wait to receive donated meals during a state-run religious rally in downtown Tehran, Iran, on April 29, 2026. Nurphoto | Nurphoto | Getty Images Up until the weekend, global markets had been betting on a fragile ceasefire between the U.S. and Iran turning into a longer-term peace deal. …