shares of advance auto parts inc aap slumped 073 to 15019 thursday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 138 to 409041 and dow jones industrial average djia falling 126 to 3369685 advance auto parts inc closed 8124 below its 52week high 23143 which the company achieved on april 21st the stock underperformed when compared to some of its competitors thursday as oreilly automotive inc orly rose 009 to 86200 and autozone inc azo fell 035 to 257135 trading volume 14 m eclipsed its 50day average volume of 926601 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