Earnings, Mergers Prop Up US MarketsU.S. stocks rallied Monday, as positive corporate earnings, more progress on European debt talks, and mergers and acquisitions activity sent shares higher.SaveMark Us Preferred on GooglePrintFrank Yu10/24/2011|Updated: 10/1/2015We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.