shares of discovery inc series a disca shed 529 to 2828 tuesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 101 to 430476 and dow jones industrial average djia falling 142 to 3359661 this was the stocks second consecutive day of losses discovery inc series a closed 4986 short of its 52week high 7814 which the company achieved on march 19th the stock underperformed when compared to some of its competitors tuesday as walt disney co dis fell 216 to 14809 comcast corp cl a cmcsa rose 064 to 4694 and amc networks inc cl a amcx fell 242 to 3757 trading volume 107 m eclipsed its 50day average volume of 90 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