U.S. stocks on track for first loss in three sessions By: MarketWatch May 05, 2015 at 06:10 AM EDT U.S. stocks head for losses, with stock futures pointing lower ahead of trade numbers and service-sector data. Read More >> Related Stocks: Archer-Daniels-Midland DIRECTV Groupon Cl A Herbalife Ltd Kellogg Co Office Depot Qualys Inc Sentinelone Inc Cl A Standard & Poors 500 Walt Disney