shares of leidos holdings inc ldos slid 121 to 10001 tuesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 200 to 399734 and dow jones industrial average djia falling 206 to 3312959 the stocks fall snapped a threeday winning streak leidos holdings inc closed 1111 below its 52week high 11112 which the company reached on april 20th the stock underperformed when compared to some of its competitors tuesday as raytheon technologies corp rtx fell 085 to 10065 lockheed martin corp lmt rose 075 to 47919 and northrop grumman corp noc rose 071 to 47395 trading volume 14 m eclipsed its 50day average volume of 861102 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