shares of quanta services inc pwr dropped 045 to 9946 monday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 038 to 440167 and dow jones industrial average djia falling 049 to 3456617 this was the stocks third consecutive day of losses quanta services inc closed 2523 below its 52week high 12469 which the company achieved on november 8th the stock underperformed when compared to some of its competitors monday as emcor group inc eme rose 017 to 11533 mastec inc mtz rose 012 to 8920 and dycom industries inc dy rose 002 to 8832 trading volume 876738 remained 210001 below its 50day average volume of 11 m editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use