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Rambus (RMBS) Q1 FY26 earnings call: guidance and Q&A

Earnings call· Mar 2026 (Q1 FY26)· Information Technology· Apr 27, 2026

Source: earnings call transcript

Executive summary

Rambus Q1 FY26 — Strong Product Revenue Growth and AI Portfolio Expansion

Rambus delivered a strong Q1 FY26, meeting financial targets with robust product revenue growth driven by DDR5 RCD chips and expanding its portfolio to address accelerating AI demands. The company introduced new LPDDR-based server module solutions and advanced IP for AI accelerators and network security, reinforcing its position in heterogeneous computing. Despite ongoing back-end supply chain tightness, Rambus is strategically building inventory and expects continued sequential growth, leveraging its diversified business model to capitalize on data center and AI megatrends.

Highlights

5

  • Product revenue reached $88 million in Q1, up 15% year-over-year.

  • Cash, cash equivalents and marketable securities totaled $786 million, an increase of $24 million from Q4 2025.

  • Generated strong operating cash of $83 million in the quarter.

  • Silicon IP business is expected to grow 10% to 15% annually, driven by AI demand.

  • Maintained strong market share in DDR products, exiting 2025 at mid-40% share with no erosion signs for 2026.

Concerns

2

  • Back-end supply chain remains tight with long lead times, expected to continue into 2027.

  • Financial impact from the new LPDDR5X SOCAMM2 chipset will be minimal in 2026 due to small volumes and niche application.

Guidance & targets

CategoryTargetConfidence
Revenue
$192 million and $198 million
high materiality
High
Product revenue
$95 million and $101 million
high materiality
High
Product revenue sequential increase
11%
medium materiality
High
Royalty revenue
$72 million and $78 million
medium materiality
High
Licensing billings
$76 million and $82 million
medium materiality
High
Non-GAAP total operating costs
$114 million and $110 million
medium materiality
High
Capital expenditures
approximately $14 million
medium materiality
High
Non-GAAP operating results
profit of $78 million and $88 million
medium materiality
High
Interest income
$7 million
low materiality
High
Non-GAAP tax expenses
$13.6 million and $15.2 million
medium materiality
High
Diluted shares outstanding
110 million
low materiality
High
Non-GAAP earnings per share
$0.65 and $0.73
high materiality
High
Full-year 2026 revenue growth
strong growth
high materiality
High
Full-year 2026 revenue growth
year-over-year revenue growth
high materiality
High
Silicon IP business growth
10% to 15% a year
medium materiality
Medium
Patent licensing business
stable at $200 million, $210 million
medium materiality
Medium
MRDIMM ramp
starting in 2027 in earnest
high materiality
Medium
MRDIMM SAM
$600 million
high materiality
Medium
Gen 5 DDR products volume ramp
bulk of the volume just like for MRDIMM is going to start in 2027
high materiality
Medium
Product revenue from new chips
mid-double-digit of product revenues
medium materiality
Medium

Segment performance

SegmentRevenueYoYQoQMargin
Product Revenue
Driven by continued strength in DDR5 products and ramping new project contributions.
$88 million15%——
Royalty Revenue
Part of the patent licensing business, which is stable at $200M-$210M annually.
$69.6 million———
Contract and Other Revenue
Consisting predominantly of silicon IP. A portion of silicon IP revenue is also reflected in royalty revenue and licensing billings.
$22.6 million———

Product announcements

ProductTypeDetails
Chipset for JEDEC-standard LPDDR5X SOCAMM2 moduleslaunch
HBM4E controllerlaunch
Network security engine for Ultra Ethernetlaunch

Risks & headwinds

Supply chain tightening on the back end Q1 FY26, continuing into 2027

Lead times are long, and there is tension on the back end. Expected to be tight going into 2027.

Mitigation:Working with suppliers; strategically building inventory to ensure supply for customers and manage fast transitions between product generations.

Timing of new platform launches Ongoing, affecting ramp into 2027

The launch of new products (e.g., MRDIMM, Gen 5 DDR) is dependent on the timing of new platforms from Intel and AMD.

Mitigation:Engaging with customers and ecosystem partners to help shape next-generation server modules.

Minimal financial impact from new LPDDR5X SOCAMM2 chipset FY26

Financial impact in the short run this year is going to be very minimal due to small volumes.

Mitigation:Considered a strategic stepping stone for future LPDDR-based server memory solutions, allowing engagement with AI players and development of next-generation LPDDR6 solutions.

What to watch in Q2 FY26

Product Revenue Growth

Q3 FY26 and beyond
Current Q2 guided at 11% sequential increase
Target Continued sequential growth after Q2

Why it matters

Indicates successful resolution of prior OSAT issue and effective supply chain stabilization, crucial for overall revenue trajectory.

We expect to deliver double-digit product revenue growth in the second quarter. We continue to see increasing customer adoption of new products and remain well positioned to support the ramp of next-generation platforms as they enter the market. ... we will continue to grow sequentially after that in an environment where our footprint continues to be very strong.

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Q&A highlights

Why is Q2 product revenue recovery measured despite strong demand, given prior OSAT issue?

The OSAT issue from the prior quarter is resolved, and the supply chain is normalizing. The Q2 product revenue guidance of 11% sequential growth is on the expected trajectory. Demand remains strong, and the market is transitioning from Gen 2 to Gen 3 DDR5, where Rambus has a strong position.

“the issue that we have talked about in the prior call is behind us. Everything has been resolved. And it's a question now for us to restabilize the supply chain, which we are doing, and we see a normalization of that supply chain.”

asked by Kevin Garrigan · answered by Luc Seraphin

2 min read 5 chapters

Detailed narrative

AI and Data Center Market Trends

Rambus is well-positioned to capitalize on megatrends in data center and AI, driven by accelerating AI adoption and expanding inference use cases. Workloads are becoming more persistent and memory-dependent, requiring complex, heterogeneous AI infrastructure. This trend increases demand for memory capacity, bandwidth, latency, and power efficiency, leading to new memory and connectivity architectures and expanding opportunities for Rambus' IP and solutions.

Product Portfolio Expansion for AI

The company expanded its product portfolio with the introduction of a chipset for JEDEC-standard LPDDR5X SOCAMM2 modules, building on its signal and power integrity expertise. This chipset, including new voltage regulators and an SPD Hub, is the first offering in Rambus' LPDDR roadmap for server module solutions. They are also actively working on LPDDR6-based SOCAMM2 solutions, positioning for future AI platforms despite minimal short-term financial impact from current LPDDR5X volumes.

Silicon IP Momentum and Innovation

Rambus saw strong customer traction in Q1 for its silicon IP business, with continued design wins at Tier 1 companies. The company expanded its memory IP portfolio by introducing the industry's fastest HBM4E controller, setting a new benchmark for AI accelerator memory throughput. Additionally, a new network security engine for Ultra Ethernet was launched to protect distributed AI clusters, strengthening Rambus' role as a critical enabler for next-generation compute and connectivity in AI infrastructure.

DDR5 Leadership and Next-Generation Ramps

Rambus continues to demonstrate strong execution and leadership in its core DDR5 RCD chips, delivering 15% year-over-year product revenue growth. The market is transitioning from Gen 2 to Gen 3 DDR5, where Rambus has a strong footprint. The company anticipates initial volumes for Gen 5 DDR products this year, with the bulk of the ramp expected in 2027, alongside MRDIMM, both dependent on new platform launches from Intel and AMD.

Strategic Inventory Management and Supply Chain

Rambus increased its inventory balance by $14 million in Q1 and plans to continue strategic inventory building in Q2. This strategy aims to support product revenue growth and mitigate potential supply chain constraints, particularly the tightening back-end supply chain with long lead times, which is expected to persist into 2027. The company confirmed that a prior OSAT issue is resolved, and the supply chain is normalizing.

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