shares of southwest airlines co luv shed 106 to 4278 monday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 004 to 446118 and dow jones industrial average djia falling 058 to 3455299 southwest airlines co closed 2197 below its 52week high 6475 which the company reached on april 14th despite its losses the stock outperformed some of its competitors monday as delta air lines inc dal fell 422 to 3609 united airlines holdings inc ual fell 354 to 4085 and american airlines group inc aal fell 394 to 1609true trading volume 62 m remained 23 million below its 50day average volume of 85 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