Quanta Services Inc. Stock Slides 8.1%, Underperforms Peers

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

Shares of Quanta Services Inc. shed 8.1% to $552.44 on what proved to be an all-around grim trading session for the stock market, with the Dow Jones Industrial Average remaining mostly unchanged at 52,867.98 and the S&P 500 Index falling 1.2% to 7,663.43.

Quanta Services Inc. closed 30.0% short of its 52-week high of $788.75, which the company reached on May 6th.

The stock underperformed when compared to some of its peers, as AECOM rose 2.3% to $60.83, MasTec Inc. fell 5.2% to $171.55, and EMCOR Group Inc. fell 5.54% to $660.41.

Trading volume totaled 2.0 million, compared to the 50-day average of 993,003.

Data source: Dow Jones Market Data, FactSet

(END) Dow Jones Newswires

October 22, 2026 16:34 ET (20:34 GMT)