Facebook Shares Fall as State Antitrust Investigation Widens (3)

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.

“Big Tech must account for its actions,” Louisiana Attorney General Jeff Landry, whose state joined the probe, said in a statement. “I ...