Why Rocket Lab (RKLB) rose 4.66%
Rocket Lab (RKLB) rose 4.66% on October 16, 2026 — Space sector rally on SpaceX-Tesla merger buzz.
What happened
Rocket Lab rose 4.7% as space stocks rallied on a rumored SpaceX-Tesla merger, which an analyst says could come within weeks and lift Musk's net worth toward $2 trillion.
Why it moved
Rocket Lab is a listed proxy for launch and space-infrastructure exposure, so a higher valuation read-through for SpaceX lifts public space peers as investors reprice the sector around SpaceX's value.
Why it matters
This fits the Space & Defense theme, which was driven by launch cadence and government backlog, though the tide is now shifting as a flagship rocket slips and SpaceX debt raises default worries.
What would break the thesis
A denial of the merger talk or a rise in SpaceX financing stress would take the valuation read-through away, and a slip in Rocket Lab's own launch schedule would weigh on the stock regardless.