Rocket Lab Stock (RKLB) Today: JAXA Launch Success, Neutron “Hungry Hippo” Milestone, Analyst Forecasts, and What Comes Next (Dec. 15, 2025)
Rocket Lab shares swung sharply on December 15, 2025, after its successful launch of JAXA’s RAISE-4 satellite from New Zealand. The stock jumped over 2% in premarket trading, then reversed to fall about 6% by late morning. The mission marked Rocket Lab’s first dedicated flight for JAXA and its 19th launch of the year.