shares of advance auto parts inc aap slipped 212 to 20777 tuesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 071 to 444808 and dow jones industrial average djia falling 079 to 3534328 advance auto parts inc closed 992 short of its 52week high 21769 which the company reached on july 27th the stock underperformed when compared to some of its competitors tuesday as oreilly automotive inc orly fell 068 to 59977 autozone inc azo fell 102 to 161647 and genuine parts co gpc fell 179 to 12367 trading volume 508715 remained 101815 below its 50day average volume of 610530 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