When did CNC join the S&P 500?

Centene Corporation joined the S&P 500 index on 2016-03-30.

What sector is CNC in?

CNC is in the Health Care sector, Managed Health Care industry.

CNC — Centene Corporation

Name: CNC Institutional Holdings (13F) — 2026Q1
Creator: SEC EDGAR
License: https://www.sec.gov/data

Managed Health Care · Health Care

Cannex provides healthcare plans and services for government-funded healthcare programs. It operates through the following segments: Medicaid, Medicare, Commercial, and Other.

Key Facts

Status	Active
Sector	Health Care
Industry	Managed Health Care
Joined	2016-03-30
Tenure	10 yrs

S&P 500 Timeline

2016-03-30Joined S&P 500

Industry Peers

ELV HUM UNH

Sector Peers

A ABBV ABT ALGN AMGN BAX BDX BIIB BMY BSX

Institutional Holdings (13F)

866 institutions hold CNC, totaling 602.3M shares ($21.4B) · As of 2026Q1

Rank	Institution	Shares	Value
1	VANGUARD CAPITAL MANAGEMENT LLC	62.5M	$2.0B
2	BARCLAYS PLC	25.8M	$1.7B
3	NORGES BANK	25.6M	$1.6B
4	BlackRock, Inc.	39.8M	$1.3B
5	AQR CAPITAL MANAGEMENT LLC	33.6M	$1.1B
6	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	15.5M	$1.0B
7	MORGAN STANLEY	27.3M	$994M
8	STATE STREET CORP	21.6M	$709M
9	VANGUARD PORTFOLIO MANAGEMENT LLC	21.6M	$708M
10	HARRIS ASSOCIATES L P	14.1M	$461M

View all holders →

Data source: Wikipedia · CC BY-SA 4.0 · SEC EDGAR 13F · Updated 2026-07-10