shares of carmax inc kmx inched 065 higher to 6946 friday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 021 to 413764 and dow jones industrial average djia falling 042 to 3388647 this was the stocks second consecutive day of gains carmax inc closed 3678 short of its 52week high 10624 which the company reached on august 16th the stock outperformed some of its competitors friday as carvana co cl a cvna fell 427 to 897 acv auctions inc acva fell 252 to 1198 and kar auction services inc kar remained unchanged trading volume 28 m eclipsed its 50day average volume of 25 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