U.S. Markets Open Modestly Lower, Fitbit Files for IPO

U.S. stocks open moderately lower as Fitbit files for an IPO and Dollar General (DG) beats profit expectations. Fitbit is looking to raise up to $358 million in an IPO. The regulatory paperwork was filed today. Dollar General posted a better than expected 14% increase in profit in the first quarter as it benefits from higher customers traffic. Alaska prepares for a partial government shutdown over a budget impasse. A hearing is scheduled to get an update on the deadly Takata airbags. A witness list wasn't made available but it is expected to include National Transportation Safety Officials. The Takata airbag recall now covers 34 million vehicles, making it one of the largest consumer recalls in history. Also in Washington, Amtrak officials will face questions on why technology to slow trains that are going too fast wasn't in place before last month's deadly derailment in Philadelphia. The hearing by the House Transportation Committee comes amid rising concern about rail safety.