shares of united airlines holdings inc ual slipped 170 to 4329 wednesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 083 to 395879 and dow jones industrial average djia falling 012 to 3355383 united airlines holdings inc closed 983 short of its 52week high 5312 which the company reached on april 22nd the stock demonstrated a mixed performance when compared to some of its competitors wednesday as southwest airlines co luv fell 168 to 3799 delta air lines inc dal fell 223 to 3412 and american airlines group inc aal fell 356 to 1409 trading volume 48 m remained 53 million below its 50day average volume of 101 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