shares of southwest airlines co luv slipped 220 to 3509 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 113 to 385593 and dow jones industrial average djia falling 101 to 3070623 southwest airlines co closed 2124 short of its 52week high 5633 which the company reached on october 4th the stock underperformed when compared to some of its competitors tuesday as delta air lines inc dal fell 058 to 3275 united airlines holdings inc ual fell 137 to 3817 and american airlines group inc aal fell 169 to 1397 trading volume 49 m remained 684707 below its 50day average volume of 56 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