Why Rocket Lab (RKLB) fell 15.46%
Rocket Lab (RKLB) fell 15.46% on October 15, 2026 — Neutron launch delayed past this year, guidance cut.
What happened
Rocket Lab fell about 13% after the company pushed back the first launch of its Neutron rocket to a date beyond this year. The delay was the company-specific news behind the drop.
Why it moved
Neutron is the program meant to scale Rocket Lab's revenue beyond its Electron rocket, so a slip pushes out when that new revenue can be recognized.
Why it matters
Within the Space & Defense theme, Rocket Lab is valued as a launch provider moving toward reusable, higher-capacity vehicles.
What would break the thesis
The thesis weakens if management confirms that 2026 revenue targets and contracted launch manifests stay intact despite the delay.
Sources
- Rocket Lab’s stock slides as the company pushes back Neutron’s first launch — MarketWatch
- Why is Rocket Lab stock tumbling today? — Investing.com
- Rocket Lab delays Neutron rocket debut to 2027 — Investing.com