shares of alaska air group inc alk shed 019 to 4783 tuesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 030 to 397015 and dow jones industrial average djia falling 071 to 3265670 alaska air group inc closed 1372 short of its 52week high 6155 which the company achieved on april 21st the stock underperformed when compared to some of its competitors tuesday as southwest airlines co luv rose 012 to 3358 delta air lines inc dal rose 132 to 3834 and united airlines holdings inc ual rose 249 to 5196 trading volume 16 m eclipsed its 50day average volume of 14 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