Shares of Lockheed Martin plunged after the US president said he may halve military spending US defense stocks took a sharp dive this week after President Donald Trump announced that he could slash military spending in half. The announcement came amid a wider cost-saving push by his administration. Companies which saw share prices fall this week include aerospace manufacturers Lockheed Martin (-4.86%) and Northrop Grumman (-6.58%) as well as General Dynamics (-5.30%), according to Friday’s