Stocks rose and closed just off their session highs Tuesday after staging a reversal that lifted the major indexes out of the red. The Dow Jones industrial average and S&P 500 each closed with an 0.6% gain, while the Nasdaq added 0.5%. Volume was slightly lower across the board in the stock market today, according to preliminary data. Advancers topped decliners by about a 3-2 margin on both the Nasdaq and the NYSE.