Major averages edged lower Tuesday in a mostly quiet session. The Dow Jones industrial average lost 0.3%, while the S&P 500 and Nasdaq eased 0.2% each. Preliminary data showed NYSE and Nasdaq volume coming in very close to Monday’s levels. Declining stocks only had a slight edge over advancers on both exchanges in the stock market today. The Nasdaq’s advance/decline line has been in a downtrend since late June.