Rocket Lab (RKLB) shares fell on February 17, 2026. The stock declined 6.75% over the past week. Prices dropped 1.7% in premarket trading.
Investors rotated from growth assets into blue-chip stocks. This trend impacted the broader space sector.
Rocket Lab is preparing its fourth hypersonic test mission in under six months. The 'Cassowary Vex' mission for the Defense Innovation Unit (DIU) launches in late February. The mission will deploy a scramjet-powered aircraft.