Stocks held gains, but were off sessions highs in early afternoon trading Monday. The session was generally quiet, although several IBD 50 names ramped higher. The Dow Jones industrial average and S&P 500 added 0.3% while the Nasdaq picked up 0.2%. Volume on the NYSE and Nasdaq was tracking lower than Friday. In the stock market today, 10 names in the IBD 50 rose 2% or more, led by Autohome (ATHM).