shares of southwest airlines co luv shed 166 to 3857 monday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 154 to 396394 and dow jones industrial average djia falling 145 to 3384946 the stocks fall snapped a threeday winning streak southwest airlines co closed 1153 short of its 52week high 5010 which the company reached on april 21st despite its losses the stock outperformed some of its competitors monday as delta air lines inc dal fell 350 to 3387 united airlines holdings inc ual fell 315 to 4302 and american airlines group inc aal fell 462 to 1383true trading volume 45 m remained 13 million below its 50day average volume of 58 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