Shares of GameStop Corp GME.Ndropped 3.4% ahead of its fourth-quarter results due after markets close. By Medha Singh and Devik Jain March 23 (Reuters) - The S&P 500 rose in choppy trading on Tuesday as investors marked time ahead of remarks from Federal Reserve Chair Jerome Powell and Treasury Secretary Janet Yellen for clues about their tolerance for higher bond yields. "We've seen a very quick movement in (yields) on mostly fears around inflation and the market is taking a pause here over the last week," said Jon Adams, senior investment strategist at BMO Global Asset Management in Chicago.