When did PWR join the S&P 500?

Quanta Services joined the S&P 500 index on 2009-07-01.

What sector is PWR in?

PWR is in the Industrials sector, Construction & Engineering industry.

PWR — Quanta Services

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

Construction & Engineering · Industrials

Guangda Service Company is dedicated to providing comprehensive infrastructure solutions for the power, petroleum and natural gas, and communications industries. It operates through the following segments: Power Infrastructure Solutions, Renewable Energy Infrastructure Solutions, and Underground Utility and Infrastructure Solutions. The Power Infrastructure segment provides network solutions to customers in the power industry. The Renewable Energy Infrastructure segment focuses on delivering comprehensive infrastructure solutions to customers in the renewable energy sector. The Underground Utility and Infrastructure segment offers comprehensive infrastructure solutions to customers involved in the development, transportation, distribution, storage, and processing of natural gas, oil, and other products.

Industry Peers

EME FIX J

Sector Peers

ADP ALLE AME AOS AXON BA BLDR BR CARR CAT

Key Facts

Status	Active
Sector	Industrials
Industry	Construction & Engineering
Joined	2009-07-01
Tenure	17 yrs

S&P 500 Timeline

2009-07-01Joined S&P 500

Institutional Holdings (13F)

13 institutions hold PWR, totaling 343K shares ($175M) · As of 2026Q1

Rank	Institution	Shares	Value
1	AMI ASSET MANAGEMENT CORP	142K	$78M
2	ZEVENBERGEN CAPITAL INVESTMENTS LLC	100K	$55M
3	Mengis Capital Management, Inc.	57K	$28M
4	COZAD ASSET MANAGEMENT INC	12K	$7M
5	Pacer Advisors, Inc.	9K	$4M
6	Ancora Advisors LLC	2K	$1M
7	Douglass Winthrop Advisors, LLC	1K	$766432
8	DF DENT & CO INC	1K	$729099
9	BERKSHIRE ASSET MANAGEMENT LLC/PA	909	$499059
10	Calydon Capital	664	$364549

View all holders →

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