Rocket Lab Corp. (NASDAQ:RKLB) has transitioned from a promising space startup to a dominant aerospace powerhouse—and its stock reflects the growth. RKLB stock is climbing. See the chart and price action here. Last week, the company secured its largest-ever contract—an $816 million deal with the U.S. Space Development Agency.Heading into the end of 2025, Rocket Lab has concluded its most successful year to date, marked by a combination of operational perfection and massive contract wins that have sent the s ...