shares of carmax inc kmx dropped 037 to 7830 wednesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 052 to 436569 and dow jones industrial average djia falling 030 to 3395152 this was the stocks third consecutive day of losses carmax inc closed 2794 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 wednesday as carvana co cl a cvna rose 276 to 2417 acv auctions inc acva fell 056 to 1783 and openlane inc kar fell 058 to 1541 trading volume 17 m remained 207959 below its 50day average volume of 19 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