shares of southwest airlines co luv sank 093 to 4454 monday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 132 to 465527 and the dow jones industrial average djia rising 068 to 3513594 this was the stocks second consecutive day of losses southwest airlines co closed 2021 below its 52week high 6475 which the company achieved on april 14th the stock underperformed when compared to some of its competitors monday as delta air lines inc dal fell 038 to 3624 united airlines holdings inc ual rose 066 to 4254 and american airlines group inc aal fell 006 to 1774 trading volume 99 m eclipsed its 50day average volume of 74 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