A New York jury found Wednesday that Live Nation and its Ticketmaster subsidiary operated an anticompetitive monopoly over big concert venues, ruling in favor of dozens of states in an antitrust lawsuit. The verdict doesn't immediately lower ticket prices but could cost the company hundreds of millions in damages and force it to divest venues when the judge sets penalties. A federal settlement reached just as the trial began capped service fees at some amphitheaters and opened doors to competitors like SeatGeek, but the jury's separate finding may lead to stricter remedies including a potential breakup.