U.S. stocks struggle on Nvidia fears, but Dow Jones gains

NEW YORK, New York - U.S. stocks struggled on Monday with tech stocks in particular taking a hit. Nvidia reports quarterly earnings this week. The stock dropped more than two percent Monday.

"I think there's a little angst in the technology sector about the upcoming Nvidia earnings," Baird analyst Ross Mayfield told CNBC Monday. "The market is in a pretty healthy place, but it is really hard to make big advances