shares of united airlines holdings inc ual slipped 713 to 4157 tuesday on what proved to be an allaround mixed trading session for the stock market with the dow jones industrial average djia rising 015 to 3192862 and the sp 500 index spx falling 081 to 394148 united airlines holdings inc closed 1902 short of its 52week high 6059 which the company achieved on june 2nd the stock demonstrated a mixed performance when compared to some of its competitors tuesday as southwest airlines co luv fell 380 to 4173 delta air lines inc dal fell 582 to 3722 and american airlines group inc aal fell 746 to 1550 trading volume 133 m remained 11 million below its 50day average volume of 144 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