shares of american airlines group inc aal slipped 244 to 1639 thursday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 138 to 409041 and dow jones industrial average djia falling 126 to 3369685 the stocks fall snapped a threeday winning streak american airlines group inc closed 503 below its 52week high 2142 which the company achieved on april 21st the stock underperformed when compared to some of its competitors thursday as southwest airlines co luv fell 087 to 3541 delta air lines inc dal fell 190 to 3828 and united airlines holdings inc ual fell 184 to 4899 trading volume 150 m remained 124 million below its 50day average volume of 274 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