shares of boeing co ba slid 877 to 11586 monday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 388 to 374963 and dow jones industrial average djia falling 279 to 3051674 this was the stocks fourth consecutive day of losses boeing co closed 13644 short of its 52week high 25230 which the company reached on june 25th the stock underperformed when compared to some of its competitors monday as honeywell international inc hon fell 100 to 18442 lockheed martin corp lmt fell 146 to 42393 and northrop grumman corp noc fell 068 to 46068 trading volume 166 m eclipsed its 50day average volume of 96 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