Avoid the stress of overpaying for a stock or missing an opportunity by using the right tools and insights to evaluate Quanta Services, Inc. before investing.

In this article, we go over a few key elements for understanding Quanta Services, Inc.’s stock price such as:

• Quanta Services, Inc.’s current stock price and volume
• Why Quanta Services, Inc.’s stock price changed recently
• Upgrades and downgrades for PWR from analysts
• PWR’s stock price momentum as measured by its relative strength

About Quanta Services, Inc. (PWR)

Before we jump into Quanta Services, Inc.’s stock price, history, target price and what caused it to recently rise, let’s take a look at some background.

Quanta Services, Inc. offers infrastructure solutions for the electric and gas utility, power generation, load center, manufacturing, communications, pipeline, and energy industries. The company’s Electric Infrastructure Solutions segment engages in the design, procurement, construction, upgrade, repair, and maintenance of electric power transmission and distribution infrastructure and substation facilities; installation, maintenance, and upgrade of electric power infrastructure projects; installation of smart grid technologies on electric power networks; and design, installation, maintenance, and repair of commercial and industrial wirings. This segment offers aviation; emergency aerial firefighting services; emergency restoration; and other engineering and technical services; design and construction solutions to wireline and wireless communications, cable multi-system operators, technology companies, and other customers; engineering, procurement, new construction, and repair and maintenance services for renewable generation facilities; and training for electric workers, as well as training for the gas distribution and communications industries. Its Underground Utility and Infrastructure Solutions segment is involved in the transportation, distribution, storage, development, and processing of natural gas, oil, and other products, as well as owns and operates large load centers. This segment also engages in the design, engineering, procurement, construction, upgrade, and repair and maintenance services for natural gas systems; pipeline protection, integrity testing, rehabilitation, and replacement services; and catalyst replacement, high-pressure and critical-path turnaround, instrumentation and electrical, piping, fabrication, and storage tank services. The company was formerly known as Fabal Construction, Inc. and changed its name to Quanta Services, Inc. in November 1997. The company was incorporated in 1997 and is headquartered in Houston, Texas.

Want to learn more about Quanta Services, Inc.’s stock? Click the button below to subscribe to A+ Investor and get access to everything you need to know about Quanta Services, Inc..

Quanta Services, Inc.’s Stock Price as of Market Close

As of July 31, 2026, 4:00 PM, CST, Quanta Services, Inc.’s stock price was $667.360.

Quanta Services, Inc. is up 1.43% from its previous closing price of $657.980.

During the last market session, Quanta Services, Inc.’s stock traded between $661.820 and $687.180. Currently, there are approximately 150.21 million shares outstanding for Quanta Services, Inc..

Quanta Services, Inc.’s price-earnings (P/E) ratio is currently at 76.4, which is high compared to the Construction & Engineering industry median of 33.1. The price-earnings ratio gauges market expectation of future performance by relating a stock’s current share price to its earnings per share.

Quanta Services, Inc. Stock Price History

Quanta Services, Inc.’s (PWR) price is currently down 7.32% so far this month.

During the month of July, Quanta Services, Inc.’s stock price has reached a high of $709.070 and a low of $554.120.

Over the last year, Quanta Services, Inc. has hit prices as high as $788.750 and as low as $363.010. Year to date, Quanta Services, Inc.’s stock is up 58.12%.

Sign Up to Receive a Free Special Report Showing How A+ Grades Can Help You Make Smarter Investment Decisions

What Caused Quanta Services, Inc. Stock’s Price to Rise?

Stock prices are primarily based on seller supply and buyer demand. But have you ever wondered about what other factors affect a stock's price?

When an analyst changes their opinion of a stock by upgrading or downgrading their rating, it often leads to a sudden stock price adjustment. As of July 31, 2026, there was 1 analyst who downgraded Quanta Services, Inc.’s stock and 0 analysts who upgraded over the last month.

Additionally, you'll want to evaluate Quanta Services, Inc.’s financial health and valuation. Investors can use AAII's Value Grade, which combines six key valuation metrics like P/E and P/S ratios for a comprehensive analysis to conduct analysis on Quanta Services, Inc.’s valuation and financial health. This approach mitigates the limitations of single-metric evaluations.

Quanta Services, Inc.’s current valuation based on AAII’s Value Grade is a F, which means it is considered to be Ultra Expensive.

Learn how to evaluate stocks with AAII Grades and Scores with A+ Investor today.

Lastly, news and media coverage as well as recent press reports about the company or its industry may cause stock prices to fluctuate. You can check out the most recent news articles about Quanta Services, Inc. (PWR) by visiting AAII Stock Evaluator.

Relative Price Strength of Quanta Services, Inc.

Relative price strength measures a stock's performance against the market, helping investors identify stocks that are outperforming benchmarks.

For AAII’s Momentum Grade, a weighted relative price strength is calculated. Follow this link to learn more about the Momentum Grade.

As of July 31, 2026, Quanta Services, Inc. has a weighted four-quarter relative price strength of 6.06%, which translates to a Momentum Score of 73 and is considered to be Strong.

Want to learn more about how Quanta Services, Inc. is graded based on AAII’s composite scores for value, growth, quality and earnings estimate revisions? Subscribe to A+ Investor today.

Quanta Services, Inc. Stock Price: Bottom Line

As of July 31, 2026, Quanta Services, Inc.’s stock price is $667.360, which is up 1.43% from its previous closing price.

AAII advises against making stock decisions based solely on price or past returns. Instead, consider a variety of metrics, fundamentals, and analytics to evaluate a stock like Quanta Services, Inc. stock prices are influenced by market supply and demand and offer just a snapshot of a company's overall health.

Subscribing to AAII's A+ Investor provides access to comprehensive analytics and insights for confident investing.