Rocket Lab’s Neutron faces a compressed schedule after multiple slips, including a January 2026 first-stage tank rupture that shifted the debut target to Q4. Recent earnings commentary from CEO Peter Beck emphasized delivery to the Wallops Island pad in the fourth quarter rather than a completed launch, noting the end-of-year window is narrowing amid ongoing first-stage qualification, nine-engine static-fire testing, wet dress rehearsals, and integrated vehicle checkout. While the captive “Hungry Hippo” fairing has completed testing and Archimedes engines are in production, the sequence of remaining milestones on a new medium-lift reusable vehicle makes a December 31 flight improbable. Traders assign high probability to “No” because historical rocket development timelines routinely extend under similar technical and integration pressures.