Wall Street has its worst day since the war with Iran started and crude oil prices rise

U.S. stocks had their worst day since the war with Iran started, as doubt took over again from hope on Wall Street about a possible end to the conflict. The S&P 500 fell 1.7% Thursday. The index is headed for a fifth straight losing week, which would be the longest such losing streak in almost four years. The Dow Jones Industrial Average dropped 1%, and the Nasdaq composite sank 2.4%. They’re the latest flip-flops for financial markets this week after Iran rejected a U.S. offer for a ceasefire. Oil prices rose more than 4%, and Treasury yields climbed in the bond market.