U.S. stocks fall amid caution in global markets By: MarketWatch May 06, 2014 at 10:10 AM EDT U.S. stocks fall on Tuesday with the financials leading the losses on the S&P 500. Investors were cautious as the crisis in Ukraine continued to flare up. Read More >> Related Stocks: Athena Technology Acquisition Corp Cl A DIRECTV Goldman Sachs Group Groupon Cl A Merck & Co Morgan Stanley Walt Disney Whole Foods Market