The stock market ended another seesaw session with mild losses Tuesday. The Nasdaq, which had been up as much as 0.3%, closed 0.1% lower. The S&P 500 also fell 0.1%, while the Dow Jones industrial average shed 0.2%. Small caps held on to gains, with the Russell 2000 adding 0.2%. Volume fell on the Nasdaq but rose on the NYSE, according to early figures. A few top-rated stocks broke out, despite the quiet trading in the broad market.