Facebook Inc. shares fell the most in two months after a state antitrust investigation into the social-media company widened, with dozens more states joining the probe led by New York.
Facebook dropped after the New York Attorney General Letitia James announced Tuesday that 45 states -- plus Guam and the District of Columbia -- are investigating whether the company harmed competition. Shares fell 3.3% to $183.44 at 3:13 p.m. in New York, the most since Aug. 14.
