When did CMS join the S&P 500?

CMS Energy joined the S&P 500 index on 1957-03-04.

What sector is CMS in?

CMS is in the Utilities sector, Multi-Utilities industry.

CMS — CMS Energy

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

Multi-Utilities · Utilities

Key Facts

Status	Active
Sector	Utilities
Industry	Multi-Utilities
Joined	1957-03-04
Tenure	69 yrs

CMS Energy is an energy holding company with three primary businesses. Its regulated utility, Consumers Energy, provides regulated natural gas service to 1.8 million customers and electric service to 1.9 million customers in Michigan. NorthStar Clean Energy, formerly CMS Enterprises, operates in wholesale power generation, including contracted renewable energy. CMS sold EnerBank in October 2021.

Industry Peers

AEE CNP D DTE ED NEE NI PCG PNW SRE

Sector Peers

AEE AEP AES ATO AWK CEG CNP D DTE DUK

S&P 500 Timeline

1957-03-04Joined S&P 500

Institutional Holdings (13F)

820 institutions hold CMS, totaling 1.10B shares ($28.3B) · As of 2026Q1

Rank	Institution	Shares	Value
1	VANGUARD CAPITAL MANAGEMENT LLC	39.8M	$3.1B
2	BlackRock, Inc.	84.1M	$2.7B
3	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	61.7M	$2.4B
4	VANGUARD PORTFOLIO MANAGEMENT LLC	18.8M	$1.5B
5	STATE STREET CORP	35.1M	$1.4B
6	JPMORGAN CHASE & CO	24.3M	$1.2B
7	MORGAN STANLEY	40.5M	$1.1B
8	BARCLAYS PLC	28.5M	$927M
9	GEODE CAPITAL MANAGEMENT, LLC	8.5M	$659M
10	GOLDMAN SACHS GROUP INC	8.9M	$657M

View all holders →

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