Stock Market Today: Dow Opens Lower, Oil Rises as Mideast Hostilities Flare — Live Updates WSJS&P 500 rises on report negotiators have reached deal to extend Iran ceasefire, but traders wary: Live updates CNBCStock market today: Dow slips, S&P 500 and Nasdaq waver following US strikes near Strait of Hormuz Yahoo FinanceWall St muted as investors asses inflation data, Mideast peace prospects ReutersStocks open flat as traders digest inflation data, fresh U.S.-Iran hostilities Investing.com