---
title: "Quanta Services Inc. Stock Underperforms Thursday When Compared To Competitors"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296534147.md"
description: "Quanta Services Inc. (PWR) shares fell 2.21% to $662.47 on Thursday, underperforming the broader market as the S&P 500 and Dow Jones declined. This marks the stock's third consecutive day of losses, with prices now 16.01% below its 52-week high. Compared to competitors, Quanta's performance was mixed; AECOM rose slightly, while MasTec and EMCOR also saw declines."
datetime: "2026-08-20T20:40:09.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296534147.md)
  - [en](https://longbridge.com/en/news/296534147.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296534147.md)
generator: "portal-rs"
---

# Quanta Services Inc. Stock Underperforms Thursday When Compared To Competitors

This article was automatically generated by MarketWatch using technology from Automated Insights.

Shares of Quanta Services Inc. (PWR) slid 2.21% to $662.47 Thursday, on what proved to be an all-around poor trading session for the stock market, with the S&P 500 Index falling 0.87% to 7,641.16 and Dow Jones Industrial Average falling 1.32% to 52,759.21.

This was the stock's third consecutive day of losses.

Quanta Services Inc. closed 16.01% below its 52-week high of $788.75, which the company achieved on May 6th.

The stock demonstrated a mixed performance when compared to some of its competitors Thursday, as AECOM (ACM) rose 0.22% to $65.18, MasTec Inc. (MTZ) fell 0.08% to $271.86, and EMCOR Group Inc. (EME) fell 2.28% to $787.39.

Data source: Dow Jones Market Data, FactSet. Data compiled August 20, 2026.

This content was created by MarketWatch, which is operated by Dow Jones & Co. MarketWatch is published independently from Dow Jones Newswires and The Wall Street Journal.

(END) Dow Jones Newswires

08-20-26 1640ET

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- [.DJI.US](https://longbridge.com/en/quote/.DJI.US.md)
- [ACM.US](https://longbridge.com/en/quote/ACM.US.md)
- [MTZ.US](https://longbridge.com/en/quote/MTZ.US.md)
- [EME.US](https://longbridge.com/en/quote/EME.US.md)
- [FDS.US](https://longbridge.com/en/quote/FDS.US.md)

## Related News & Research

- [Are Wall Street Analysts Bullish on Quanta Services Stock?](https://longbridge.com/en/news/296621625.md)
- [Quanta Services (NYSE:PWR)  Shares Down 3.8%   - Should You Sell?](https://longbridge.com/en/news/296645138.md)
- [Quanta Services Inc. Stock Underperforms Friday When Compared To Competitors](https://longbridge.com/en/news/296651388.md)
- [PWR: Strong growth, $53.4B backlog, and leadership in infrastructure solutions drive expansion](https://longbridge.com/en/news/295833205.md)
- [PWR: Revenue up slightly, profit down 47.5%, record used/service revenue, 3.6c total dividend](https://longbridge.com/en/news/296541841.md)

---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**