The stock price of The Trade Desk, a U.S. digital advertising platform company, surged nearly 15% immediately after the announcement of its inclusion in the S&P 500 index.

On the 14th (local time), in after-hours trading on the New York Stock Exchange, The Trade Desk was traded at $86.5, up $11.07 (14.68%) from the regular session. On this day, S&P Dow Jones Indices announced that The Trade Desk will replace Ansys and be included in the S&P 500 index starting from the 18th. This is a measure following the completion of the acquisition of Ansys by Synopsis. Based in California, The Trade Desk is an ad tech company that helps advertisers and advertising agencies effectively purchase and execute digital advertising. The S&P 500 index typically adjusts its constituent stocks quarterly, but in cases like this where a merger and acquisition (M&A) has been completed, the schedule is exceptionally expedited for the replacement.

[Reporter: Oh Chan-jong]