The US Space Force's Golden Dome missile-defense program has recently reached a new milestone, marking a sign of progress toward building the defense technology. These successful tests are a testament to the significant advancements in US defense technology, particularly in the field of missile interception. Both SpaceX and Northrop Grumman Corp stand to benefit from the missile defense program, albeit differently. SpaceX can use the Golden Dome to deepen a rapidly expanding national-security space business, while Northrop can add the program to its already established portfolio. The bear case, however, is that the Golden Dome is still far from becoming a meaningful revenue stream.