shares of genuine parts co gpc shed 513 to 15429 thursday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 030 to 394872 and the dow jones industrial average djia rising 023 to 3210525 this was the stocks second consecutive day of losses genuine parts co closed 3344 short of its 52week high 18773 which the company reached on december 2nd the stock underperformed when compared to some of its competitors thursday as aptiv plc aptv fell 006 to 10770 and cummins inc cmi fell 141 to 22619 trading volume 19 m eclipsed its 50day average volume of 12 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