shares of southwest airlines co luv slid 212 to 3547 monday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 130 to 401777 and dow jones industrial average djia falling 077 to 3371709 southwest airlines co closed 1463 below its 52week high 5010 which the company reached on april 21st the stock demonstrated a mixed performance when compared to some of its competitors monday as delta air lines inc dal fell 085 to 3840 united airlines holdings inc ual fell 107 to 4821 and american airlines group inc aal fell 286 to 1596 trading volume 70 m eclipsed its 50day average volume of 66 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