Rocket Lab Just Delayed Its Big New Rocket to 2027. The Stock Is Down 10% After Hours

A carbon-composite dome no bigger than the top of a propellant tank just shook billions in market value and pushed Rocket Lab's most important bet to a launch date the company has not yet set.

Published October 15, 2026, 9:03am ET · 4 min read

© NASA / Getty Images

The launch delay stems from a single carbon-composite dome at the top of Neutron’s first-stage propellant tank. After the close, Rocket Lab (NASDAQ:RKLB | RKLB Price Prediction) said manufacturing defects in the forward dome are pushing the reusable medium-lift rocket’s first launch to 2027, from a fourth-quarter 2026 target.

Shares dropped 9.94% to $53.30 in after-hours trading as of 7:59 p.m. Eastern. Wall Street’s consensus target of $106.33 implies roughly 99.5% upside from that quote, and analyst targets carry no guarantee.

The stock had already fallen 7.85% to close at $59.18 before the announcement, as hot inflation data pulled the broader market lower. The S&P 500 fell 1.07% in the same session.

Rocket Lab’s Electron small-launch business is performing well, having flown a record 21 launches with 100% success in 2025, and second-quarter revenue rose 62% to $234.07 million.

RKLB earnings explorer

Yet a $35.42 billion market value rests mostly on a rocket that has never flown and whose debut just slipped again.

Forward Dome Defects Turned a Narrowing Window Into a 2027 Debut

Chief executive Peter Beck said the defects “don’t necessarily mean that the dome would fail on flight,” but “our practice is to proceed only when we believe the system has the appropriate margins.” He added, “Possible success isn’t our standard.”

NASA will build and inspect a new dome. Full first-stage assembly is expected in the first quarter, and a firm launch date will follow. The engineering call is sound, because a failed debut would cost far more than a quarter or two in hardware and in the customer trust Electron built.

It still amounts to a schedule miss. In August Beck said production lined up with “target delivery of Neutron to the pad in Q4 2026,” while admitting “the window for an end-of-year launch is narrowing.”

Four Slips Make Every New Neutron Date Harder to Trust

Neutron was unveiled in 2021 with a first flight targeted for 2024. That moved to mid-2025, then 2026, then no earlier than the fourth quarter of 2026 after a first-stage tank ruptured in testing in January 2026.

Both recent setbacks hit the same structure. Composite tanks are where launch schedules often get delayed, because defects hide inside layered carbon fiber and a flawed part usually has to be rebuilt.

Each slip also increases the discount investors are likely to apply to the next target, and Rocket Lab has not set a 2027 date, so the market is pricing a debut it cannot yet check.

A 99% Gap to Target Leans Almost Entirely on Neutron

At $53.30, the stock sits 64.7% below the top of its 52-week range of $37.57 to $151.00. It closed the regular session down 15.17% for the year, as the S&P 500 gained 12.87%.

Analysts remain constructive, with ratings split among 4 Strong Buy, 12 Buy, 4 Hold, plus zero Sell.

RKLB analyst ratings

The existing business cannot carry that valuation alone. Trailing revenue of $769.1 million puts the stock at 54.63 times sales, and the company posted a $49.3 million GAAP net loss last quarter.

RKLB price target

Dated Milestones Would Narrow the Gap While Cash Burn Widens It

A completed first-stage assembly in the first quarter, followed by a firm launch date, would give analysts something concrete to defend. Chief financial officer Adam Spice highlighted the risk, saying cash-flow positivity is “very much a function of the timing of the first successful test launch of Neutron,” and could take “18 to 24 months after that pivot.”

Every slip pushes that timeline out while free cash flow stays negative, at a $110.1 million use in the second quarter. Rocket Lab raised $1.53 billion through at-the-market stock sales in the first half, so funding the delay likely means more dilution.

Beck said, “We believe Neutron is going to be a game changer.” A $2.36 billion backlog supports that view, but the vehicle still has to fly on a schedule Rocket Lab has yet to set.

Rocket Lab’s Valuation Hinges on a Launch Date It Has Yet to Set

Rocket Lab holds $2.13 billion in cash and has cited early Neutron pricing of “a 50 to 55 million dollar ASP.”

A space and defense peer with more booked revenue behind its valuation is Kratos Defense & Security Solutions (NASDAQ:KTOS). It trades at $39.33 against a consensus target of $99.57, implying 153.2% upside, backed by 4 Strong Buy, 15 Buy, plus 2 Hold ratings.

Kratos reported second-quarter revenue of $458.8 million, up 30.5%, and guides to $1.750 to $1.810 billion this year. At about 5 times sales, its valuation rests on revenue already booked in rocket systems, satellite ground software, and jet engines.

This conservative view of Rocket Lab would be wrong if first-stage assembly finishes on time and a firm date follows. That would remove the largest uncertainty behind the gap.

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Omor Ibne Ehsan

Omor Ibne Ehsan is a writer at 24/7 Wall St. He is a self-taught investor with a focus on growth, cyclical, and dividend equities that have strong fundamentals, value, and long-term potential. He also has an interest in high-risk, high-reward investments such as penny stocks.

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