Rocket Lab Shares Tumble 14% as Space Sector Resets, While a $90M Defense Pact and Record Pipeline Steady the Ship

Rocket Lab shares fell 14.79% to $122.39 amid broader space sector repricing, despite record Q1 revenue of $200.3M, $2.2B backlog, and a new $90M Space Force contract.

Monday’s 14.79% slide in Rocket Lab’s stock to $122.39 came without a company-specific catalyst, reflecting instead a broader repricing of the space sector as investors reassess lofty valuations. The selloff saw shares trade as low as $121.75 and high as $139.87, with a volume of roughly 37.3 million shares — well above average. The stock now sits 18.53% below its 52-week peak of $150.23.

Yet underneath the sector rotation lies a company that has rarely been busier. Rocket Lab’s Q1 2026 results, released less than a month ago, showed a record $200.3 million in revenue, up 63.5% year over year, with GAAP gross margins of 38.2%. The backlog climbed to $2.2 billion, a 20.2% sequential increase, supported by 31 new launch contracts for Electron and HASTE missions plus five additional Neutron orders. The company now has more than 70 missions under contract.

For the current quarter, management guided revenue of $225 million to $240 million, another projected record, alongside gross margins of 33% to 35% and an adjusted EBITDA loss of $20 million to $26 million. The June period will test whether rising launch frequency and spacecraft system revenues can offset ongoing investment in Neutron development.

A key near-term milestone is the upcoming Electron mission dubbed “The Grain Goddess Provides.” Scheduled for June, it will carry QPS-SAR-13 (MIKURA-I), a radar satellite, to a 575-kilometer low-Earth orbit at a 42-degree inclination. The launch, set for Rocket Lab’s Launch Complex 1, represents the eighth flight for Japanese customer iQPS’s constellation, which ultimately calls for 15 launches. For investors, repeat constellation orders signal predictable demand — a metric the market scrutinizes closely among small-launch providers.

Rocket Lab also secured a $90 million contract from the U.S. Space Force on May 21 to develop, build, and operate two geostationary satellites carrying the Heimdall payload. This marks the company’s first production program for geostationary orbits, shifting Heimdall from prototype to operational capability. Rocket Lab serves as the prime contractor, handling assembly, integration, and testing at its Spacecraft Production Complex in Long Beach, California. The award expands the company’s defense portfolio and diversifies revenue beyond low-Earth orbit launches.

Beyond organic growth, Rocket Lab has been bulking up through acquisitions. The purchase of Mynaric and Motiv Space Systems brings in-house capabilities in optics, robotics, and precision mechanics, supporting vertical integration. The company’s cash position remains above $2 billion, providing a cushion for both R&D and potential future deals.

On a valuation basis, the stock carries a market capitalization of $74 billion against a negative price-to-earnings ratio, with a beta of 2.48 that amplifies market moves. The relative strength index stands at 47.3, squarely in neutral territory. Over the trailing 12 months, Rocket Lab shares have surged roughly 372%, while year-to-date they remain up 61.06%. The stock trades 32.66% above its 50-day moving average and 71.75% above the 200-day line. The central question for the months ahead is whether Rocket Lab can convert its record backlog into accelerating revenue and narrowing losses — a yardstick that will likely matter far more than any single session’s sector-driven noise.