When did WM join the S&P 500?

Waste Management joined the S&P 500 index on 1998-08-31.

What sector is WM in?

WM is in the Industrials sector, Environmental & Facilities Services industry.

WM — Waste Management

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

Environmental & Facilities Services · Industrials

S&P 500 Timeline

1998-08-31Joined S&P 500

Waste Management, Inc. is a holding company engaged in the provision of waste management environmental services. It operates through the following segments: Eastern, Western and Other. The Eastern region includes the eastern United States, the Great Lakes region and Canada. The Western region includes the Midwest and British Columbia, Canada. The Other segment includes portions not assessed and overseen through the Eastern and Western tiers.

Key Facts

Status	Active
Sector	Industrials
Industry	Environmental & Facilities Services
Joined	1998-08-31
Tenure	27 yrs

Industry Peers

ROL RSG VLTO

Sector Peers

ADP ALLE AME AOS AXON BA BLDR BR CARR CAT

Institutional Holdings (13F)

26 institutions hold WM, totaling 2.7M shares ($574M) · As of 2026Q1

Rank	Institution	Shares	Value
1	Morgan Stanley Institutional Investment Advisors LLC	1.5M	$340M
2	BAHL & GAYNOR INC	471K	$108M
3	BERKSHIRE ASSET MANAGEMENT LLC/PA	239K	$55M
4	AMI ASSET MANAGEMENT CORP	177K	$41M
5	Sandhill Capital Partners LLC	26K	$6M
6	MITCHELL CAPITAL MANAGEMENT CO	19K	$4M
7	SVB WEALTH LLC	18K	$4M
8	L & S Advisors Inc	17K	$4M
9	Mengis Capital Management, Inc.	13K	$3M
10	ZEVENBERGEN CAPITAL INVESTMENTS LLC	11K	$3M

View all holders →

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