Alcoa Sinking in Tandem With S&P 500 Signals Slump, Bespoke Says

April 13 (Bloomberg) -- U.S. stocks may drop in the next month after Alcoa Inc.s lower-than-estimated sales drove down its shares and the Standard & Poors 500 Index, Bespoke Investment Group LLC said. Alcoa tumbled 6 percent and the benchmark measure of U...