shares of comcast corp cl a cmcsa shed 301 to 4998 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 190 to 456700 and dow jones industrial average djia falling 186 to 3448372 comcast corp cl a closed 1182 short of its 52week high 6180 which the company reached on september 3rd the stock demonstrated a mixed performance when compared to some of its competitors tuesday as walt disney co dis fell 197 to 14490 rogers communications inc cl b rci fell 122 to 4469 and dish network corp cl a dish fell 567 to 3125 trading volume 305 m eclipsed its 50day average volume of 165 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