Tech Stocks: Late Rally Scores WellTech Stocks: Late Rally Scores Well

A volatile day of trading, with the major indexes trading down for much of the session, ended on an upswing as investors appeared more optimistic about the upcoming earnings season. The indexes ended at levels they haven't seen for about three weeks.

The biggest percentage gainer Tuesday was our information 100, which rose 1.89 points, or 0.6%, to 328.70. The Dow industrials rose 52.07 points, or 0.5%, to end the day at 10,381.70. Both the Nasdaq and the S&P 500 rose 0.4%. The Nasdaq rose 8.06 points to end at 2,000.63, and the S&P 500 rose 4.53 points to close at 1,127.00.

The Nasdaq-100 tracking stock rose 12 cents, or 0.34%, to $35.91 on about average trading volume of 95.7 million shares.

See the full listing of all the companies in the information 100 and the top 5 percentage winners and losers for the last closing at information.com/stocks.