The Trade Desk Stock Climbs Higher on S&P 500 Debut as ANSYS Drops Out

On July 18, 2025, The Trade Desk Inc. (TTD) will officially join the S&P 500, replacing ANSYS Inc. (ANSS), which is set to be acquired by fellow S&P 500 constituent Synopsys Inc. (SNPS) a day prior. Following the announcement, TTD shares gained 6.6% on July 15 and closed at $80.40,...