Monday marked a quiet start to the week on Wall Street, and major benchmarks finished close to where they started the day. Market participants appeared content to tread water as they waited for geopolitical happenings to play out later this week, including the potentially contentious U.K. election on Thursday. Comments from the White House about the privatization of the U.S. air traffic control system dominated the headlines, but most of the big moves in the market came from company-specific news.