shares of waste management inc wm slipped 078 to 15824 monday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 008 to 389209 and dow jones industrial average djia falling 034 to 3351765 waste management inc closed 1774 short of its 52week high 17598 which the company reached on august 18th the stock underperformed when compared to some of its competitors monday as ecolab inc ecl rose 051 to 15022 and republic services inc rsg fell 049 to 12773 trading volume 17 m eclipsed its 50day average volume of 17 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