Key TakeawaysVisa shares will likely remain in focus on Wednesday after slumping more than 5% yesterday following news that the U.S. Department of Justice had filed an antitrust lawsuit against the payments giant, alleging that it has engaged in monopolistic behaviors to protect its dominant position in the debit card market.The stock broke out to a new record high earlier this moth but promptly reversed course, raising the possibility of a bull trap, a chart pattern that lures investors into buying before ...