U.S. Stocks Mostly Lower to Open the Week

Nasdaq and S&P fall, Dow posts small gain. Twitter shares fall again as Elon Musk’s plan to acquire the social-media company remains on hold. Spirit Airlines shares jump 13% after WSJ reports JetBlue plans to launch hostile takeover attempt. J.R. Whalen reports. Learn more about your ad choices. Visit megaphone.fm/adchoices