Why Bristol Myers Squibb Stock Is Sinking Today

Investors didn't like the biopharmaceutical company's updated guidance.Shares of Bristol Myers Squibb (BMY -7.89%) were down 8.3% as of 11:19 a.m. ET on Thursday. The sell-off came after the big drugmaker announced its first-quarter results before the market opened.Bristol Myers Squibb reported Q1 revenue of $11.9 billion, up 5% year over year. The company posted a loss of $5.89 per share based on generally accepted accounting principles (GAAP) compared to a profit of $1.07 per share in the prior-year perio ...