shares of waste management inc wm slipped 008 to 15691 wednesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 075 to 385297 and the dow jones industrial average djia rising 040 to 3326977 waste management inc closed 1907 short of its 52week high 17598 which the company achieved on august 18th the stock demonstrated a mixed performance when compared to some of its competitors wednesday as ecolab inc ecl rose 173 to 14976 and republic services inc rsg fell 033 to 12825 trading volume 13 m remained 438231 below 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