Inve US ▾
RKRKLB

Rocket Lab (RKLB) Q4 FY25 earnings call: guidance and Q&A

Earnings call· Dec 2025 (Q4 FY25)· Industrials· Feb 26, 2026

Source: earnings call transcript

Executive summary

Rocket Lab Q4 FY25 — Record Revenue and Backlog, Neutron Launch Delayed

Rocket Lab delivered record financial results in Q4 FY25, driven by strong execution in both launch and Space Systems, highlighted by a significant SDA contract award. The company continues its vertical integration strategy through strategic acquisitions and is making substantial progress on Neutron development, despite a revised launch timeline to Q4 2026 following a manufacturing defect in the Stage 1 tank.

Highlights

5
  • Achieved a new annual revenue record of $602 million in 2025, representing 38% year-on-year growth.

  • Recorded a record Q4 revenue of $180 million, up 36% from Q4 last year.

  • Backlog reached a record $1.85 billion at the end of Q4, an increase of 73% from Q4 2024.

  • Awarded the largest contract in company history, an $816 million deal from the SDA for 18 spacecraft.

  • Achieved record GAAP gross margin of 38% and non-GAAP gross margin of 44.3% in Q4.

Concerns

3
  • Neutron's first launch is now targeted for Q4 2026, a delay attributed to a manufacturing defect in the Stage 1 tank.

  • Q1 FY26 GAAP gross margin is expected to decline to 34-36% from 38% in Q4 FY25 due to a mix shift.

  • Q1 FY26 non-GAAP gross margin is expected to decline to 9-41% from 44.3% in Q4 FY25 due to a mix shift.

Guidance & targets

CategoryTargetConfidence
Q1 2026 Revenue
$185 million and $200 million
high materiality
High
Q1 2026 GAAP Gross Margin
34% to 36%
medium materiality
High
Q1 2026 Non-GAAP Gross Margin
9% to 41%
medium materiality
High
Q1 2026 GAAP Operating Expenses
$120 million and $126 million
medium materiality
High
Q1 2026 Non-GAAP Operating Expenses
$106 million and $112 million
medium materiality
High
Q1 2026 GAAP and Non-GAAP Net Interest Income
$8 million
low materiality
High
Q1 2026 Adjusted EBITDA Loss
$21 million and $27 million
high materiality
High
Q1 2026 Basic Weighted Average Common Shares Outstanding
approximately 605 million shares
low materiality
High
Neutron First Launch
Q4 2026
high materiality
Medium
Electron/HASTE Launch Growth
~20%
medium materiality
Medium

Segment performance

SegmentRevenueYoYQoQMargin
Space Systems
The sequential decrease was primarily stemmed from the satellite platforms business and solar businesses, despite both performing exceptionally well, due to programmatic nonlinearity of revenue recognition under ASC 606 and related subcontractor progress.
Satellite platforms business: sequential decreaseSolar businesses: sequential decrease
$103.8 million—-9.1%—
Launch Services
The quarter-over-quarter increase was due to the increase from 4 to 7 launches during the period, including 1 HASTE mission.
Launches: 7 in Q4 (up from 4 in Q3)HASTE missions: 1 in Q4
$75.9 million—85%—

RKLB operating KPIs by quarter

RKLB operating KPIs stated on its earnings calls, by fiscal quarter
KPI Dec 2024 Q4 FY24 Jun 2025 Q2 FY25 Sep 2025 Q3 FY25This call Dec 2025 Q4 FY25 Mar 2026 Q1 FY26 Jun 2026 Q2 FY26Change vs prior quarter
Backlog
$1.07B We ended Q4 2024 with $1.07 billion of total backlog with Launch backlog of $386 million and Space Systems backlog of $681 million. Source: earnings call transcript
~$1B We ended Q2 2025 with approximately $1 billion of total backlog with launch backlog representing approximately 41% of this and Space Systems 59%. Source: earnings call transcript
~$1.1B We ended Q3 2025 with approximately $1.1 billion in total backlog, with launch backlog accounting for approximately 47% and Space Systems representing 53%. Source: earnings call transcript
$1.85B At the end of Q4, our backlog sat at a record $1.85 billion, which is up 73% from the same time in 2024. Source: earnings call transcript
~$2.2B We ended Q1 2026 with approximately $2.2 billion in total backlog, with launch backlog accounting for approximately 41.5% and Space Systems representing 58.5%. Source: earnings call transcript
$2.36B We ended the quarter with a $2.36 billion in backlog and across launch in Space Systems, we've signed more than $1 billion in new contracts across Q2 and the period since the quarter closed. Source: earnings call transcript
—
Employees production
1,004 Relatedly, we ended Q4 with production-related headcount of 1,004 heads, up 40 from the prior quarter. Source: earnings call transcript
1,150 Relatedly, we ended Q2 with production-related headcount of 1,150, up 62% from the prior quarter. Source: earnings call transcript
1,198 We ended Q3 with production-related head count of 1,198, up 48% in the prior quarter. Source: earnings call transcript
1,244 Relatedly, we ended Q4 with production-related headcount of 1,244, up 46 from the prior quarter. Source: earnings call transcript
1,448 Relatedly, we ended Q1 with production-related headcount of 1,448, up 250 from the prior quarter, largely driven by a transition of dedicated R&D headcount from the first Neutron test flight to our production teams related to future revenue-generating missions as well as headcount ramps related to our recent Geost and PCL acquisitions. Source: earnings call transcript
1,688 Relatedly, we ended Q2 with production related head count of 1,688, up 240 for the prior quarter. Source: earnings call transcript
+16.6%
Employees R&D
828 Q4 ending R&D headcount was 828, representing an increase of 52 from the prior quarter. Source: earnings call transcript
935 Q2 ending R&D head count was 935, representing an increase of 12% from the prior quarter. Source: earnings call transcript
1,019 Q3 R&D headcount was 1,019, representing an increase of 84 from the prior quarter. Source: earnings call transcript
1,012 Q4 ending R&D head count was 1,012, an representing a decrease of 7% from the prior quarter. Source: earnings call transcript
949 Q1 ending R&D headcount was 949, representing a decrease of 70 from the prior quarter. Source: earnings call transcript
1,087 Q2 ending R&D head count was 1,087, representing an increase of 138 for the prior quarter. Source: earnings call transcript
+14.5%
Employees SG&A
329 Q4 ending SG&A headcount was 329, representing an increase of 29 from the prior quarter. Source: earnings call transcript
343 Q2 ending SG&A head count was 343, representing an increase of 11% from the prior quarter. Source: earnings call transcript
385 Q3 ending SG&A headcount was 385, representing an increase of 42 from the prior quarter, with the majority of those coming from the closing of the GEOs acquisition. Source: earnings call transcript
389 Q4 ending SG&A head count was 389, representing an increase of 4% from the prior quarter. Source: earnings call transcript
381 Q1 ending SG&A headcount was 381, representing a decrease of 4 from the prior quarter. Source: earnings call transcript
442 Q2 ending SG&A head count was 442, representing an increase of 61 from the prior quarter. Source: earnings call transcript
+16%
Employees
2,161 In summary, total fourth quarter headcount was 2,161, up 121 heads from the prior quarter. Source: earnings call transcript
2,420 In summary, total second quarter head count was 2,420, up 85% from the prior quarter. Source: earnings call transcript
2,602 In summary, total headcount at the end of the third quarter was 2,602, up 174 heads from the prior quarter. Source: earnings call transcript
2,645 In summary, total head count at the end of the fourth quarter was 2,645 up 43 heads from the prior quarter. Source: earnings call transcript
2,778 In summary, total headcount at the end of the first quarter was 2,778, up 176 heads from the prior quarter. Source: earnings call transcript
3,217 In summary, total headcount at the end of the second quarter was 3,217, up 439 heads from the prior quarter. Source: earnings call transcript
+15.8%

Operating figures the company stated on at least two of the calls shown, checked against each call's transcript. Click a figure to read the sentence. A dash means it was not stated that quarter.

Orderbook & backlog

Total Backlog $1.85 billion end of Q4 2025

up 73% from Q4 2024; 69% growth sequentially

Approximately 37% expected to convert into revenue within the next 12 months.

SDA Tranche 3 contract award $816 million Q4 2025

Primarily due to this award; will start to convert into revenue in Q1 FY26.

Total SDA Contracts (Tranche 2 + 3) >$1.3 billion Q4 2025

Combined value of contracts with the SDA.

Product announcements

ProductTypeDetails
Space-optimized silicon solar arrayslaunch
Hybrid solar array solutionlaunch

Deals & partnerships

Space Development Agency (SDA) customer contract $816 million

Contract to build an advanced constellation of 18 spacecraft equipped with missile warning, tracking, and defense sensors. This is the largest single contract in Rocket Lab's history.

Geos acquisition

Acquired in 2025, marking Rocket Lab's official entrance into payloads.

Optical Support, Inc. (OSI) acquisition

Acquired in Q1 2026. OSI is a Tucson-based leader in the design and manufacture of custom high-precision optical and electro-optical mechanical instruments, a key enabler for national security and commercial satellites.

Precision Components Limited (PCL) acquisition

Acquired in Q1 2026. PCL is a New Zealand-based known and trusted supplier, supporting continued scaling of components manufacturing for both launch and space systems.

BlackSky customer contract

Signed a new multi-launch deal for 4 new launches in Q4 2025.

Confidential customer customer contract

Signed a contract in Q4 2025 in support of national security.

NDA program participation up to $151 billion

Selected by the NDA for the Shield program.

Capital programs

Neutron Development underway
Period spend: $49.7 million

Benefit:testing and integrating across the pad at LCI in Wallops, Virginia and Middle River, Maryland, expanding capabilities at our engine development complex in Long Beach, California and build-out of the return on investment recovery barge in Louisiana.

Capital expenditures reflect ongoing investments in Neutron development, testing, production scaling, and infrastructure expansion. Cash consumption will remain elevated due to these investments.

Risks & headwinds

Neutron Stage 1 tank manufacturing defect and associated launch delay Q4 2026 (first launch)

First launch now targeted for Q4 2026, a delay from earlier targets.

Mitigation:Identified root cause as a manufacturing defect in a hand-laid process; subsequent tanks built on an automated fiber placement machine; minor design changes for more margin; extensive test and qualification campaign planned.

Programmatic nonlinearity of revenue recognition and subcontractor progress in Space Systems Q4 FY25, ongoing

Space Systems segment revenue saw a sequential decrease of 9.1% in Q4 FY25.

Mitigation:Increased vertical integration to reduce dependency on third parties; close collaboration with subcontractors to ensure timely deliveries and accelerate revenue recognition.

Elevated cash consumption due to Neutron development and scaling production Q4 FY25, Q1 FY26, and beyond

Q4 FY25 GAAP operating cash flow was a use of $64.5 million, and non-GAAP free cash flow was a use of $114.2 million. Negative non-GAAP free cash flow is expected to remain elevated in Q1 FY26.

Mitigation:Maintained strong liquidity with $1 billion in cash at Q4 end; generated $280.6 million from at-the-market equity offering program; strategic M&A to vertically integrate and expand capabilities.

Regulatory review process for Minarik acquisition Ongoing

The German government is still working methodically through the regulatory review process.

Mitigation:Company is awaiting conclusion of the process and will provide updates once available.

Q&A highlights

Clarification on what SDA contracts and Neutron flights are included in the $1.85B backlog and the expected cadence of Neutron launches post-delay.

Adam confirmed all SDA contracts (Tranche 2 remaining, Tranche 3 full) are in backlog, and several Neutron flights are included. Peter explained the second tank production is faster due to the AFP machine, and subsequent Neutron flights won't be delayed as much as the first. Adam added that the cost of the second tank is low, and there won't be increased CapEx for it.

“the actual cost to produce that second tank is quite low. The first tank was very expensive because as Pete mentioned earlier, it was a handled up tank. It took a long time, this will be much quicker.”

asked by Andres Sheppard-Slinger · answered by Adam Spice

3 min read 7 chapters

Detailed narrative

Record Financial Performance and Margin Expansion

Rocket Lab achieved a new annual revenue record of $602 million in FY25, marking a 38% year-on-year increase, alongside a record Q4 revenue of $180 million, up 36% YoY. This strong top-line growth was accompanied by significant margin expansion, with Q4 GAAP gross margin reaching 38% and non-GAAP gross margin at 44.3%, reflecting a 100 bps and 240 bps sequential improvement, respectively.

The company's revenue has grown nearly tenfold since its NASDAQ listing in 2021, demonstrating robust competitive positioning and operational efficiency.

Strategic Vertical Integration through Acquisitions

The company continued its strategy of vertical integration with key acquisitions. Following Geos in 2025, Rocket Lab acquired Optical Support, Inc. (OSI) in Q1 2026, enhancing its optical systems capabilities crucial for national security and commercial satellites. Additionally, the acquisition of Precision Components Limited (PCL) in Q1 2026 significantly expanded Rocket Lab's machining and manufacturing footprint, supporting the scaling of components for both launch and space systems and reducing supply chain dependencies.

Electron and HASTE Program Milestones

Rocket Lab maintained its global leadership in small launch, executing a record 21 missions across Electron and HASTE in 2025, including 7 missions in Q4—its highest single-quarter launch count. The company secured over 30 new launch contracts from a diversified customer base, including a multi-launch deal with BlackSky for 4 missions and a contract with a confidential national security customer.

This high cadence and strong demand underscore Rocket Lab's reliable launch services, particularly for critical hypersonic testing programs like Golden Dome.

Space Systems Growth and SDA Contract Wins

The Space Systems segment demonstrated substantial growth, highlighted by the largest contract in Rocket Lab's history: an $816 million award from the Space Development Agency (SDA) to build 18 advanced missile warning, tracking, and defense spacecraft. This award, combined with previous contracts, brings Rocket Lab's total SDA contracts to over $1.3 billion, solidifying its position as a disruptive prime contractor in the defense space and a leading merchant supplier for other Tranche 3 contractors.

Neutron Development Update and Revised Timeline

Neutron's first launch is now targeted for Q4 2026, a delay from previous expectations. This revision follows a manufacturing defect identified during a hydrostatic pressure test of the Stage 1 tank, which ruptured earlier than anticipated. The issue was traced to a hand-laid process by a third-party contractor, with subsequent tanks now being produced on an automated fiber placement machine to prevent recurrence and incorporate minor design improvements for enhanced manufacturability and margin.

Neutron Qualification Progress

Despite the Stage 1 tank setback, Neutron achieved significant qualification milestones in Q4 FY25 and Q1 FY26. The Hungry Hippo fairing and the thrust structure successfully passed qualification, with flight hardware beginning to arrive at Wallops for final assembly and integration.

The second stage is in final integration, and Archimedes engines are undergoing rigorous testing to ensure reliability, marking critical steps towards integrated testing and the first flight.

Innovation in Space Solar Power

Rocket Lab introduced space-optimized silicon solar arrays and hybrid solar array solutions, leveraging its expertise in space solar technology. These innovations aim to provide cost-effective, industrial-scale power generation for the rapidly expanding satellite industry and future space-based data centers. The silicon arrays offer low cost per watt for gigawatt-class power, while hybrid solutions balance efficiency and cost for optimal performance across various mission requirements.

Summary of the company's earnings call; see how call summaries are prepared. Not investment advice.