shares of lockheed martin corp lmt slid 218 to 44283 thursday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx rising 088 to 415128 and the dow jones industrial average djia falling 011 to 3276465 lockheed martin corp closed 6527 below its 52week high 50810 which the company achieved on april 18th the stock underperformed when compared to some of its competitors thursday as raytheon technologies corp rtx fell 058 to 9312 boeing co ba rose 080 to 20087 and northrop grumman corp noc fell 180 to 43351 trading volume 12 m remained 35452 below its 50day average volume of 12 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