S&P announces major changes in S&P 100, S&P 500, S&P 400
S&P Dow Jones Indices announced changes to its major indices. Sandisk (SNDK) will join the S&P 100, replacing Colgate-Palmolive (CL). Other additions to the S&P 100 include Dell (DELL), Palo Alto Networks (PANW), and Arista Networks (ANET). The S&P 500 will add Bloom Energy (BE), Illumina (ILMN), and Everpure (P). Changes are effective before trading on Sept. 21, 2026.


