RKLB Stock Drops 8% After Rocket Lab Earnings as Neutron Delay Fears Grow

Rocket Lab stock (NASDAQ: RKLB) fell sharply Tuesday after the space company reported mixed second-quarter results, with strong revenue growth and a record backlog failing to offset a wider-than-expected loss and fresh uncertainty surrounding the timeline for its Neutron rocket.

RKLB stock dropped about 8% in trading on Aug. 11 after Rocket Lab posted an adjusted loss of $0.08 per share. Revenue reached approximately $234 million, up 62% from a year earlier and slightly above Wall Street expectations.

Why Is RKLB Stock Falling Today?

The biggest concern appears to be Rocket Lab’s path toward profitability and the timing of Neutron, its reusable medium-lift rocket designed to compete for larger commercial and national-security launches.

CEO Peter Beck said the window for launching Neutron before the end of 2026 is becoming narrower as testing and development continue. Investors have treated Neutron as one of Rocket Lab’s biggest potential growth catalysts, meaning even a possible shift into 2027 can have an outsized impact on RKLB stock sentiment.

Rocket Lab also guided for an adjusted EBITDA loss of $17 million to $23 million in the third quarter, compared with roughly a $10 million loss expected by analysts cited by MarketWatch. That weaker profitability outlook helped overshadow otherwise strong operating results.

The sell-off comes after an already volatile summer for Rocket Lab shares. RKLB traded above $100 in early July before falling sharply during the following weeks, showing how sensitive the stock remains to expectations around launches, contracts and Neutron development. Rocket Lab’s own historical data show the stock closing at $100.46 on July 2 before dropping to $83.41 by July 7.

Rocket Lab Backlog Hits Record $2.36 Billion

The earnings report was not entirely bearish. Rocket Lab’s backlog climbed 137% year over year to a record $2.36 billion, while the company said it has already secured more than $1 billion of additional contracts during the third quarter.

The company recently won a $266 million multi-launch contract from the U.S. Space Force, its largest launch contract to date, strengthening Rocket Lab’s position in the U.S. defense and national-security market.

Rocket Lab also expects third-quarter revenue of $250 million to $265 million, above the roughly $238.5 million analyst estimate reported by The Wall Street Journal.

What Comes Next for RKLB Stock?

For RKLB stock, the next major catalyst is likely to remain Neutron. Continued progress toward pad rollout and flight testing could restore confidence that Rocket Lab can move into the much larger medium-launch market, while another schedule setback would likely increase pressure on the shares.

The fundamental picture therefore remains mixed: Rocket Lab is generating record revenue and backlog while winning increasingly large government contracts, but investors are still being asked to price in substantial development costs and uncertainty around Neutron’s first flight. Tuesday’s RKLB stock decline shows that, for now, the market is placing more weight on execution risk than on headline growth.