Index history
S&P 500 changes in 2018
The S&P 500 saw 23 changes in 2018: 23 companies added and 23 removed. Dates and reasons for each change below — or browse every change since 1976.
- Dec 24, 2018
esrx
Express Scripts
S&P 500 constituent Cigna (NYSE: CI) acquired ESRX - Dec 3, 2018
col
Rockwell Collins
UTX acquired COL - Dec 3, 2018
mxim
Maxim Integrated
aet
Aetna
CVS acquired Aetna - Dec 3, 2018
srcl
Stericycle
Market Capitalization change - Nov 13, 2018EQT spun off ETRN
- Nov 6, 2018
ca
CA Technologies
CA acquired by Broadcom. - Oct 11, 2018
evhc
Envision Healthcare
EVHC acquired by KKR. - Oct 1, 2018
andv
Andeavor
ANDV acquired by Marathon Petroleum. - Sep 14, 2018
wcg
WellCare
xl
XL Group
XL acquired by Axa. - Aug 28, 2018
ggp
GGP
GGP acquired by Brookfield Property Partners. - Jul 2, 2018
dps
Dr Pepper Snapple Group
DPS acquired by Keurig Green Mountain. - Jun 20, 2018
flt
FleetCor Technologies
twx
Time Warner
AT&T acquired Time Warner. - Jun 18, 2018
rrc
Range Resources
Market capitalization change. - Jun 18, 2018
hfc
HollyFrontier
ayi
Acuity Brands
Market capitalization change. - Jun 7, 2018
twtr
Twitter
mon
Monsanto
Bayer acquired Monsanto. - Jun 5, 2018
navi
Navient
Westar Energy (NYSE: WR) acquired Great Plains Energy (NYSE: GXP) and changed name to Evergy. - May 31, 2018
abmd
Abiomed
wyn
Wyndham Worldwide
Wyndham Worldwide spun off Wyndham Hotels & Resorts (NYSE:WH). - Apr 4, 2018
csra
CSRA
S&P 500 constituent General Dynamics (NYSE: GD) acquired CSRA. - Mar 19, 2018
sig
Signet Jewelers
Market capitalization change. - Mar 19, 2018
sivb
SVB Financial Group
pdco
Patterson Companies
Market capitalization change. - Mar 19, 2018
nktr
Nektar Therapeutics
chk
Chesapeake Energy
Market capitalization change. - Mar 7, 2018
ipgp
IPG Photonics
sni
Scripps Networks Interactive
Discovery Communications acquired SNI. - Jan 3, 2018
bcr
CR Bard
Becton Dickinson acquired BCR.
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