Index history
S&P 500 changes in 2025
The S&P 500 saw 21 changes in 2025: 19 companies added and 19 removed. Dates and reasons for each change below — or browse every change since 1976.
Date
Added
Removed
Reason
- Dec 22, 2025Market capitalization change.
- Dec 22, 2025
sols
Solstice Advanced Materials
Market capitalization change. - Dec 22, 2025Market capitalization change.
- Dec 11, 2025Mars Inc. acquired Kellanova.
- Nov 28, 2025S&P 500 constituent Omnicom Group Inc. acquired (The) Interpublic Group.
- Nov 4, 2025—Market capitalization change.
- Nov 3, 2025—S&P 500 constituent Dupont de Nemours, Inc. spun off Qnity Electronics.
- Oct 31, 2025—Market capitalization change.
- Oct 30, 2025
sols
Solstice Advanced Materials
—S&P 500 and S&P 100 constituent Honeywell International Inc. spun off Solstice Advanced Materials. - Sep 22, 2025Market capitalization change.
- Sep 22, 2025Market capitalization change.
- Sep 22, 2025Market capitalization change.
- Aug 28, 2025Sycamore Partners acquired Walgreen Boots Alliance.
- Jul 23, 2025S&P 500 and S&P 100 constituent Chevron Corp. acquired Hess Corporation
- Jul 18, 2025S&P 500 constituent Synopsys Inc. acquired Ansys.
- Jul 9, 2025S&P 500 constituent Hewlett Packard Enterprise Co. acquired Juniper Networks.
- May 19, 2025
dfs
Discover Financial
S&P 500 constituent Capital One Financial Corp. acquired Discover Financial Services. - Mar 24, 2025
bwa
BorgWarner
Market capitalization change. - Mar 24, 2025
tfx
Teleflex
Market capitalization change. - Mar 24, 2025Market capitalization change.
- Mar 24, 2025
fmc
FMC Corporation
Market capitalization change.
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