Stocks indexes kept to a tight range Thursday afternoon, unable to make much of a move up or down. The Nasdaq inched up 0.2%, while the S&P 500 was flat. The Dow Jones industrial average added 0.1%. Small caps had more trouble as the Russell 2000 dropped 0.5%. Volume rose slightly on both major exchanges on the stock market today vs. the same time Wednesday. Blue chips were mostly higher, however.