shares of southwest airlines co luv inched 051 higher to 2980 tuesday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx remaining mostly unchanged at 420552 and the dow jones industrial average djia falling 015 to 3304278 this was the stocks third consecutive day of gains southwest airlines co closed 1666 below its 52week high 4646 which the company reached on june 1st the stock underperformed when compared to some of its competitors tuesday as delta air lines inc dal rose 109 to 3628 united airlines holdings inc ual rose 159 to 4801 and american airlines group inc aal rose 188 to 1462 trading volume 56 m remained 11 million below its 50day average volume of 66 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