shares of delta air lines inc dal slipped 273 to 3493 wednesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 073 to 411524 and dow jones industrial average djia falling 077 to 3279992 delta air lines inc closed 752 short of its 52week high 4245 which the company achieved on may 31st the stock underperformed when compared to some of its competitors wednesday as southwest airlines co luv fell 183 to 2894 united airlines holdings inc ual fell 253 to 4666 and american airlines group inc aal fell 192 to 1380 trading volume 88 m remained 22 million below its 50day average volume of 110 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