Rocket Lab Shares Slide 14.7% as Neutron Tank Rupture and Blue Origin Explosion Stoke Sector Jitters

Rocket Lab's shares drop after Neutron rocket fuel tank failure delays launch to mid-2026, compounded by Blue Origin explosion and profit-taking, despite strong Q1 revenue and defense wins.

Rocket Lab finds itself in a peculiar bind. The company just posted record revenue, locked in a $2.2 billion backlog, and breezed through a key defense milestone. Yet its stock suffered its worst single-day drop in months on Monday, caught between a manufacturing mishap of its own making and the shockwaves from a competitor’s test failure. The 14.7% plunge to $122.39 erased nearly $11 billion in market value, dragging the stock 18% below its 52-week high of $150.23 and underscoring how quickly sentiment can turn in this capital-intensive corner of the space economy.

Two distinct catalysts triggered the sell-off. First, a fuel tank on the main stage of Rocket Lab’s Neutron rocket burst during ground testing, forcing the company to push the maiden flight to mid-2026 — a delay from the late-2025/early-2026 target that had long been a key narrative driver. Second, across the industry, Blue Origin’s New Glenn rocket exploded during an engine test at its Florida facility. Rocket Lab has no operational ties to New Glenn, but the incident rattled the entire space sector, pulling down peers like Planet Labs and Intuitive Machines. The stock was also vulnerable after rallying more than 60% year-to-date, leaving it technically overbought and ripe for profit-taking. The looming IPO of SpaceX, expected by mid-June, added to the pressure by drawing capital away from smaller players.

While the market focused on headlines, Rocket Lab’s underlying business continued to fire on all cylinders. The company’s Q1 2026 revenue hit $200.4 million — a 64% year-over-year jump — and its trailing twelve-month revenue reached $679.6 million. The backlog swelled to a record $2.2 billion. During the quarter alone, Rocket Lab signed 36 new launch contracts, a tally that dwarfs the 21 missions it flew in all of 2025. Notably, five of those contracts are dedicated bookings for the yet-unflown Neutron rocket, signaling customer confidence in the program despite the recent setback.

Defense has become an increasingly dominant pillar. The Space Systems segment has already overtaken launch as the largest revenue contributor, and recent contract wins reinforce that trajectory. In early June, Rocket Lab completed the System Requirements Review for the U.S. Space Development Agency’s Tracking Layer Tranche 3, validating the technical design for its missile-tracking satellites. On top of cumulative awards exceeding $1.3 billion for the SDA program, the company secured a $90 million U.S. Space Force contract under the Heimdall program for two geostationary satellites. The combined defense pipeline provides a stable counterweight to the volatility of the launch business.

Rocket Lab also closed its acquisition of Motiv Space Systems during the correction. Now rebranded as Rocket Lab Robotics, the California-based firm brings proven technology — including components that operated on NASA’s Perseverance rover — and expertise in precision mechanisms, solar array drives, and antenna pointing systems. The deal strengthens vertical integration, allowing Rocket Lab to build critical spacecraft subsystems in-house, a capability that becomes increasingly valuable as it scales production for large constellations and orbital data centers.

The Neutron delay remains the most significant overhang. The rocket is central to Rocket Lab’s growth strategy, targeting the medium-lift market where constellation operators need frequent, dedicated launches. Development continues with support from the newly integrated robotics unit, and the company has already filed for FAA launch licenses. With more than $2 billion in available liquidity, Rocket Lab is well funded to absorb the setback. The stock’s next major inflection point will be the Neutron first flight — now expected around mid-2026. If successful, it could redefine Rocket Lab’s competitive position relative to Blue Origin and legacy incumbents, and make the current sell-off feel like a distant memory.