shares of leidos holdings inc ldos dropped 057 to 9957 thursday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 053 to 401232 and the dow jones industrial average djia rising 033 to 3315391 leidos holdings inc closed 1155 short of its 52week high 11112 which the company achieved on april 20th the stock underperformed when compared to some of its competitors thursday as raytheon technologies corp rtx fell 032 to 9964 lockheed martin corp lmt fell 009 to 47908 and northrop grumman corp noc fell 052 to 47626 trading volume 977108 eclipsed its 50day average volume of 884400 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