European stocks set to open lower as Iran war concerns grow

A trading floor manager works on the floor of the American Stock Exchange (AMEX) at the New York Stock Exchange (NYSE) in New York, US, on Monday, May 4, 2026. Michael Nagle | Bloomberg | Getty Images LONDON — European stocks are expected to open mostly lower on Tuesday as investors digest the latest developments in the Iran war. The U.K.'s FTSE index is seen opening flat, Germany's DAX and France's CAC 40 down 0.4%, respectively, and Italy's FTSE MIB 0.1% lower, according to data from IG. …