shares of carmax inc kmx slipped 144 to 6033 tuesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 168 to 392056 and the dow jones industrial average djia rising 106 to 3215540 this was the stocks fourth consecutive day of losses carmax inc closed 4591 below its 52week high 10624 which the company reached on august 16th the stock demonstrated a mixed performance when compared to some of its competitors tuesday as carvana co cl a cvna fell 869 to 683 iaa inc iaa rose 025 to 4027 and acv auctions inc acva rose 408 to 1274 trading volume 27 m eclipsed its 50day average volume of 22 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