shares of unitedhealth group inc unh shed 156 to 53744 monday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 169 to 441253 and dow jones industrial average djia falling 119 to 3430808 the stocks fall snapped a fourday winning streak unitedhealth group inc closed 1153 short of its 52week high 54897 which the company reached on april 8th the stock demonstrated a mixed performance when compared to some of its competitors monday as anthem inc antm fell 193 to 51064 humana inc hum fell 142 to 45133 and centene corp cnc fell 179 to 8690 trading volume 35 m eclipsed its 50day average volume of 32 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