shares of leidos holdings inc ldos shed 096 to 10252 tuesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 048 to 417548 and the dow jones industrial average djia rising 020 to 3312879 leidos holdings inc closed 860 below its 52week high 11112 which the company reached on april 20th the stock underperformed when compared to some of its competitors tuesday as lockheed martin corp lmt rose 092 to 43477 northrop grumman corp noc rose 288 to 45125 and general dynamics corp gd rose 006 to 23338 trading volume 13 m eclipsed its 50day average volume of 11 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