US Stock Market Move | Unexpectedly included in the S&P 500 Index, Trade Desk (TTD.US) rose over 9% to hit a 5-month high.

On Tuesday, Trade Desk (TTD.US) rose over 9%, hitting a 5-month high at $82.43. On the news front, on Monday, S&P Dow Jones Indices announced that Trade Desk will replace Ansys in the S&P 500 index before Friday's opening bell. This adjustment is due to Synopsys' acquisition of Ansys, which is expected to be completed on Thursday. Trade Desk's inclusion came as a surprise to the market, given its market capitalization of only 37 billion US dollars.