Wall Street's main indexes rose on Tuesday in a truncated trading session before Christmas, with the S&P 500 and the Nasdaq up for the third consecutive day, helped by gains in a handful of megacap and growth stocks.

Stocks shook off a choppy start to finish higher Monday, as Wall Street kicked off a holiday-shortened week. The S&P 500 ended 0.7% higher after having been down 0.5% in the early going. The Dow Jones Industrial Average also recovered from an early slide to eke out a 0.

Global markets were mostly higher on Tuesday, with Chinese markets logging gains of more than 1% after the Chinese finance minister promised a more pro-active approach to government spending in the coming year.

Wall Street's main indexes advanced on Tuesday, as gains in a handful of megacap and growth stocks bolstered benchmarks in a truncated trading session before Christmas. With megacap stocks having outsized influence on markets,

U.S. stock indexes edged higher in morning trading Tuesday, as gains for some Big Tech stocks made up for weakness elsewhere in the market. The S&P 500 rose 0.4%. The Dow Jones Industrial Average was up 14 points,

Wall Street's main indexes opened flat to slightly higher in Tuesday's shortened trading session, with U.S. stocks entering a historically strong period before rounding off their second consecutive