Dow opens lower as earnings bonanza continues

New York (CNN Business)The Dow and broader stock market slumped lower at Thursday’s open, on one of the biggest days of the earnings season. Before the bell, American Airlines (AAL) reported second quarter results, forecasting a $400 million hit for full-year earnings from Boeing’s (BA) 737 Max crisis. 3M (MMM) and Budweiser-parent Anheuser-Busch InBev (BUD) also reported before the opening bell rings. Both beat earnings expectations. Internet giants Google (GOOG) and Amazon (AMZN), as well as chip maker Intel (INTC) and Starbucks (SBUX), will report after the market close. The European Central Bank delivered it’s monetary policy update. The central bank left interest rates unchanged and said rates would remain at their current levels or lower “at least through the …