Rocket Lab's Neutron Rocket Slips to 2027 After Carbon Composite Flaw
Published on 10/16/2026 at 11:41 | Editorial boerse-global.deRocket Lab has pushed the maiden flight of its Neutron rocket from the fourth quarter of 2026 into 2027, following the discovery of microscopic voids and porosity within the carbon-fiber composite domes of the first stage's fuel tank. The announcement, made Wednesday evening, lands as a pointed reminder that in orbital launch, physics — not marketing — sets the schedule.
At the heart of the setback are air pockets trapped between the carbon-fiber layers in the forward fuel tank dome of the first stage. The structural weakness surfaced during hydrostatic pressure testing, and a tank had already ruptured in January 2026 under similar loads, prompting a rework of both the design and the manufacturing process. A replacement front dome is now in production, and a rear dome built to the revised specification has cleared inspection, according to CEO Peter Beck. Even so, assembly and integration checks on the first stage will stretch into the first quarter of 2027, and only after those are complete will a reliable launch window come into focus.
A Stock Priced for Perfection Gets a Reality Check
Investors wasted little time repricing the shares. The stock closed Wednesday's session in German trading at EUR 49.30, a daily loss of 7.2 percent, and has since traded around EUR 49.60. Over the past seven days the equity is down 19 percent, and it now sits 63 percent below its 52-week high — a drawdown that lays bare how much of the bull case had been staked on Neutron arriving on time.
The delay also sharpens a question that has shadowed Rocket Lab's growth story: can a reliable small-satellite launch provider ever generate the margins of a true space heavyweight? The company's workhorse Electron rocket, with a payload capacity of roughly 300 kilograms, has hit natural volume limits. The genuinely lucrative margins live in the medium- and heavy-lift segment, where Neutron is designed to carry up to 13,000 kilograms to low Earth orbit, powered by nine Archimedes engines generating about 6.45 million newtons of liftoff thrust. Without that vehicle, Rocket Lab remains largely locked out of capital-intensive mega-constellations and heavier government payloads — and every month of delay pushes back the day it can stand shoulder to shoulder with the industry's dominant players.
Should investors sell immediately? Or is it worth buying Rocket Lab?
A Backlog That Buys Time
Writing off the program would be premature. Unlike the pure hope stocks of earlier space booms, Rocket Lab rests on a solid operating foundation. Its order backlog climbed to a record USD 2.36 billion at the end of the second quarter of 2026, a 137 percent jump year over year, with more than 90 launches under contract across all programs. Electron, meanwhile, has strung together 56 consecutive successful missions. That existing business absorbs the operational friction for now and gives engineers room to root out the structural manufacturing defects properly.
Institutional money is treating the selloff as an entry point. Cathie Wood's ARK Invest stepped in yesterday, buying 168,633 shares across three funds for roughly USD 9.32 million — a wager that composite manufacturing problems, while time-consuming, are ultimately solvable.
The Street Splits on the Damage
Analysts are divided on how much the slip actually costs. Andres Sheppard of Cantor Fitzgerald reiterated a "Buy" rating and a USD 122 price target, arguing the pullback is overdone and pointing to a persistent global shortage of launch capacity that keeps long-term demand for orbital transport intact. KeyBanc trimmed its target from USD 135 to USD 100 but kept the stock at "Overweight." In the optimistic scenario, a successful debut sometime in 2027 closes the gap to the market leader and sets up the positive free cash flow Rocket Lab is targeting from 2028.
The bear case is less forgiving. Neutron's first flight had already been postponed repeatedly, with an initial launch once envisioned for 2024. Should the newly laminated dome run into fresh delamination or material weaknesses during upcoming pressure tests, the debut could slide deep into the second half of 2027 or beyond. Such a delay would not only overshadow the USD 250 million to USD 265 million in third-quarter 2026 revenue the company has projected, but also weigh on full-year 2027 estimates. Heavy upfront spending on Archimedes engine qualification and the ground infrastructure in Wallops Island, Virginia, is already draining liquidity — and if entry into the profitable medium-lift segment keeps receding, waiting satellite operators may hand their contracts to rivals.
What to Watch Next
The next decisive milestone is completion of the dome manufacturing by the end of 2026. If the first stage is assembled and integrated without further incident in the first quarter of 2027, the market finally gets the dependable launch date it has been waiting for. Until then, the stock's ability to hold its recent level keeps the broader upside story for the coming year alive; a continued correction, paired with fading confidence in management's timelines, would open the door to a retest of the yearly lows. Rocket Lab has proven it can build rockets and place payloads with precision. Whether it can make the leap into the next weight class will be settled not in conference rooms, but on the test stands of the new year.
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