shares of lockheed martin corp lmt shed 055 to 38908 thursday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 054 to 432651 and dow jones industrial average djia falling 002 to 3416078 the stocks fall snapped a threeday winning streak lockheed martin corp closed 791 below its 52week high 39699 which the company reached on may 10th the stock demonstrated a mixed performance when compared to some of its competitors thursday as boeing co ba fell 233 to 18975 northrop grumman corp noc fell 725 to 37399 and general dynamics corp gd rose 189 to 20880 trading volume 25 m eclipsed its 50day average volume of 17 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