Key Highlights
- Three companiesāBloom Energy, Everpure, and Illuminaāwill enter the S&P 500 index on September 21, 2026
- Molson Coors Beverage, The Trade Desk, and Builders FirstSource will be removed from the benchmark
- Companies exiting the S&P 500 will transition to the S&P SmallCap 600 index
- The S&P 100 adds four tech firms: Dell Technologies, Palo Alto Networks, Arista Networks, and Sandisk
- Four companies leave the S&P 100: Honeywell Aerospace, Nike, Simon Property Group, and Colgate-Palmolive
Three companies are preparing to enter the S&P 500 during the index’s regular quarterly update. The transition will occur prior to market opening on Monday, September 21, 2026.
S&P Dow Jones Indices made the announcement on Friday, confirming the latest adjustments designed to maintain each benchmark’s alignment with its intended market capitalization tier.
The Latest Additions and Removals
Bloom Energy, a producer of fuel-cell power systems for commercial facilities and data centers, will take the spot currently held by Molson Coors Beverage, the company responsible for brewing Coors Light and Miller Lite.
Everpure, which specializes in data-storage and data-management solutions, will step in for The Trade Desk, a software provider that enables advertisers to purchase and oversee digital advertising campaigns.
Illumina, known for its DNA-sequencing platforms, will substitute Builders FirstSource, a distributor of building materials serving the residential construction market in the United States.
The three companies exiting the S&P 500 will be reassigned to the S&P SmallCap 600 index. Meanwhile, Everpure and Illumina are being elevated from the S&P MidCap 400 to join the large-cap S&P 500.
This reshuffling adds one company each to the information technology and healthcare sectors. Conversely, the consumer staples and communication services sectors will each see one departure.
Technology Companies Dominate S&P 100 Changes
The S&P 100, which represents the largest publicly traded companies in the United States, is undergoing modifications as well. Four technology firmsāDell Technologies, Palo Alto Networks, Arista Networks, and Sandiskāwill join this elite index.
These additions will displace Honeywell Aerospace, Nike, Simon Property Group, and Colgate-Palmolive. Notably, all four incoming companies operate in the information technology sector, while none of the exiting firms do.
This shift reinforces an ongoing pattern of technology enterprises claiming larger representation among the market’s biggest players.
Index inclusion typically triggers mechanical buying activity. Passive funds that replicate these benchmarks must purchase shares of newly added companies to maintain accurate tracking. Conversely, they must sell shares of removed companies.
Price movements associated with these adjustments frequently occur ahead of the official implementation date as market participants position themselves for the expected trades. It’s important to note that index membership doesn’t alter a company’s fundamental operations or profit potential.
Additional adjustments in this quarterly update include the promotion of HubSpot, AGNC Investment, Corcept Therapeutics, and Brinker International to the S&P MidCap 400.
Boston Beer and Capri Holdings will be reclassified from the S&P MidCap 400 down to the S&P SmallCap 600.
The SmallCap 600 will welcome several new members, including Herc Holdings and Delek US Holdings, among others. According to S&P, the companies being removed have outgrown the small-cap classification of the U.S. equity market.
Every modification spanning the S&P 500, S&P 100, S&P MidCap 400, and S&P SmallCap 600 becomes effective prior to trading commencement on September 21, 2026.
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