shares of alaska air group inc alk slid 449 to 4400 friday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 291 to 390086 and dow jones industrial average djia falling 273 to 3139279 this was the stocks third consecutive day of losses alaska air group inc closed 2183 short of its 52week high 6583 which the company reached on june 11th the stock demonstrated a mixed performance when compared to some of its competitors friday as southwest airlines co luv fell 452 to 4014 delta air lines inc dal fell 444 to 3512 and united airlines holdings inc ual fell 361 to 4116 trading volume 21 m eclipsed its 50day average volume of 19 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