shares of northrop grumman corp noc shed 111 to 45861 wednesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 013 to 375989 and dow jones industrial average djia falling 015 to 3048313 northrop grumman corp closed 3369 below its 52week high 49230 which the company reached on june 7th the stock underperformed when compared to some of its competitors wednesday as lockheed martin corp lmt fell 084 to 41545 boeing co ba rose 030 to 13716 and general dynamics corp gd fell 025 to 21601 trading volume 539643 remained 306888 below its 50day average volume of 846531 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