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Ansys's removal from the S&P 500 often leads to negative market perception. Historical trends show removed stocks tend to underperform post-removal.
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The Trade Desk will replace Ansys in the S&P 500 on Friday. Synopsys' acquisition of Ansys is set to close soon. Stocks typically rally upon being added to major indices. Trade Desk's stock fell 36% in 2025, prior years saw increases. Ansys's removal from S&P 500 could impact its stock performance.
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