Illumina IncIllumina promoted to S&P 500, likely attracting index fund buying.
S&P Dow Jones Indices announced that Bloom Energy, Illumina, and Everpure will join the S&P 500, while Dell Technologies, Palo Alto Networks, Arista Networks, and Sandisk will be added to the S&P 100, effective before the open on September 21, 2026. The changes, part of the quarterly rebalance, also affect the S&P MidCap 400 and S&P SmallCap 600, with several companies moving between indices. Notably, Everpure and Illumina are being promoted from the S&P MidCap 400 to the S&P 500, while The Trade Desk and Builders FirstSource are being demoted from the S&P 500 to the S&P SmallCap 600. The adjustments aim to ensure each index better represents its market capitalization range.
Illumina IncIllumina promoted to S&P 500, likely attracting index fund buying.
Arcutis Biotherapeutics Inc
Corcept Therapeutics Incorporated
Alibaba Pictures Group Ltd
Arista Networks
Dell Technologies Inc
AGNC Investment Corp.
AMERISAFE Inc
HubSpot Inc
S&P Global Inc
Bloom Energy CorpBloom Energy added to S&P 500, likely attracting index fund buying.
Builders FirstSource IncBuilders FirstSource demoted from S&P 500 to S&P SmallCap 600, likely causing index fund selling.
Everpure, Inc.Everpure added to S&P 500, likely attracting index fund buying.
Trade Desk IncTrade Desk demoted from S&P 500 to S&P SmallCap 600, likely causing index fund selling.
AtriCure Inc
AXT Inc
Herc Holdings Inc
Nike Inc
Palo Alto Networks Inc
Sandisk Corp