shares of waste management inc wm sank 090 to 15980 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 042 to 449938 and dow jones industrial average djia falling 045 to 3531449 waste management inc closed 1618 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 tuesday as ecolab inc ecl rose 038 to 18521 and republic services inc rsg fell 109 to 14727 trading volume 10 m remained 439712 below its 50day average volume of 15 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