Shares of space technology start-up Rocket Lab soared early Friday after the company announced potential new business with the U.S. Space Force. Rocket Lab stock rose 6.5% to $19.61 in premarket ...

Shares rose as high as $19.79 and closed up 1.1% at $18.62 on a weak day for the market. The S&P 500 and Dow Jones Industrial Average fell 2% and 1.7%, respectively.