shares of leidos holdings inc ldos shed 114 to 8827 tuesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 075 to 463409 and dow jones industrial average djia falling 030 to 3554418 leidos holdings inc closed 2548 below its 52week high 11375 which the company achieved on january 25th the stock underperformed when compared to some of its competitors tuesday as lockheed martin corp lmt rose 003 to 34564 northrop grumman corp noc fell 029 to 37622 and general dynamics corp gd fell 001 to 20347 trading volume 976614 eclipsed its 50day average volume of 653993 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