shares of delta air lines inc dal slipped 029 to 4855 friday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 003 to 453634 and the dow jones industrial average djia rising 001 to 3522769 delta air lines inc closed 126 short of its 52week high 4981 which the company achieved on july 13th the stock underperformed when compared to some of its competitors friday as southwest airlines co luv rose 046 to 3725 united airlines holdings inc ual rose 184 to 5761 and american airlines group inc aal fell 011 to 1742 trading volume 89 m remained 28 million below its 50day average volume of 117 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