Quanta Services Inc. Stock Sheds 12.3%, Underperforms Peers

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

Shares of Quanta Services Inc. plunged 12.3% to $509.06 on what proved to be an all-around grim trading session for the stock market, with the S&P 500 Index falling 4.4% to 7,353.73 and Dow Jones Industrial Average falling 3.4% to 51,523.06.

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

Quanta Services Inc. closed 35.5% 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 fell 2.2% to $66.72, MasTec Inc. fell 5.2% to $158.94, and EMCOR Group Inc. fell 6.87% to $595.32.

Trading volume totaled 4.9 million, compared to the 50-day average of 1.1 million.

Data source: Dow Jones Market Data, FactSet

(END) Dow Jones Newswires

November 05, 2026 16:34 ET (21:34 GMT)