S&P Dow Jones Indices Announces Changes to S&P 100, S&P 500, and S&P MidCap 400 Constituents

S&P Dow Jones Indices announced changes to several index constituents, including the S&P 100, S&P 500, and S&P MidCap 400, with the adjustments set to take effect on September 21, 2026. According to Odaily, the S&P 100 will add Palo Alto Networks, Arista Networks, SanDisk Networks, and Dell Technologies, while Nike, Colgate-Palmolive, and Honeywell Aerospace will be removed. The S&P 500 will add Bloom Energy, Illumina, and Everpure. The S&P MidCap 400 will add HubSpot, AGNC, Corcept, and Brinker.