U.S. stocks extended gains on Tuesday as semiconductors rose after two large Taiwanese producers pointed to growing global demand and energy shares were lifted by bets the sector may have seen the worst of the selling.

* The major indexes were up more than 2 percent, and the S&P 500 rose above its 200-day moving average, a level it has struggled to breach for the last month and which signals bullish momentum.

* The Dow Jones industrial average <.DJI> rose 203.75 points, or 2.00 percent, to 10,394.64. The Standard & Poor's 500 Index <.SPX> climbed 24.13 points, or 2.21 percent, to 1,113.76. The Nasdaq Composite Index <.IXIC> jumped 60.04 points, or 2.68 percent, to 2,304.00.

(Reporting by Leah Schnurr; Editing by Leslie Adler)