Arm (ARM) Q2 2025: Royalty Revenue Jumps 23% as v9 and CSS Accelerate Value Capture
Arm’s second quarter showcased the company’s ability to monetize next-generation IP as royalty revenue surged, outpacing end-market unit growth and underscoring the leverage of v9 and CSS adoption. Licensing momentum and a robust backlog signal durable demand for Arm’s compute platform across AI, data center, and automotive. Management’s conviction in royalty rate expansion and ecosystem depth positions Arm for further upside, though litigation and end-market mix remain watchpoints.
Summary
- Value Per Chip Inflection: Royalty growth far exceeded unit volumes, driven by v9 and CSS mix shift.
- Licensing Pipeline Strength: Bookings and annualized contract value outperformed expectations, supporting multi-year revenue visibility.
- AI and Data Center Tailwinds: Platform adoption in cloud and edge markets is accelerating, reinforcing Arm’s cross-vertical relevance.
Business Overview
Arm designs and licenses advanced CPU architectures and related intellectual property (IP) for semiconductor companies globally. The business generates revenue through two major segments: royalties, which are per-chip fees collected as partners ship devices using Arm IP, and licensing, upfront or recurring fees paid by customers to access Arm’s technology portfolio. Arm’s compute platform is foundational across smartphones, data centers, automotive, IoT, and emerging AI workloads, with a software ecosystem exceeding 20 million developers.
Performance Analysis
Arm delivered a quarter marked by a pronounced decoupling of royalty revenue from underlying unit shipment trends, as royalty income climbed 23% year over year, sharply outpacing the 4% unit growth in smartphones. This divergence is the result of rapid adoption of Arm’s v9 architecture and the initial ramp of CSS (Compute Subsystem), both of which command higher royalty rates and are increasingly present in flagship and mid-tier products. Notably, v9 now accounts for 25% of royalty revenue, up from 10% a year ago.
Licensing revenue declined 15% year over year but outperformed internal expectations, with annualized contract value (ACV) up 13% and backlog (RPO) up 10% sequentially. Bookings strength reflects robust customer design activity, particularly in AI, data center, and automotive verticals. Management highlighted that the licensing pipeline is running ahead of plan, supporting confidence in future royalty growth as these designs enter production.
- Royalty Mix Shift: Smartphone royalties rose 40% YoY, despite only single-digit shipment growth, as v9 and CSS penetration deepened.
- Licensing Outperformance: ACV and bookings exceeded expectations, with CSS licenses doubling year over year.
- Segment Divergence: Automotive and cloud drove incremental share gains, while industrial remained weak due to inventory correction.
Management’s guidance reiteration for both Q3 and full year, alongside a steady ramp in operating expenses for R&D, signals ongoing investment in next-generation IP to sustain royalty leverage.
Executive Commentary
"The demand for AI everywhere is increasing the demand for ARM's compute platform. To date now, since our history, over 300 billion ARM chips have been shipped. Now, in the past quarter, we had a great set of results exceeding the high end of the guidance. We had record royalty revenue, up 23% year-on-year as adoption of v9 increases."
Rene Haas, Chief Executive Officer
"Royalty revenue was $514 million, which grew 23% year-over-year and matched our highest royalty revenue quarter to date. Our Q2 royalty revenue growth was driven by continued ARM B9 adoption and the start of CSS deployment. As with last quarter, royalty revenue from smartphones significantly outperformed smartphone shipments."
Jason Child, Chief Financial Officer
Strategic Positioning
1. v9 and CSS Drive Value-Based Pricing
Arm’s v9 architecture and CSS products are structurally lifting royalty rates as customers adopt higher-value IP for AI and edge workloads. Unlike prior generations, v9 enables multi-year improvements and supports value-based pricing, while CSS (Compute Subsystem) offers integrated, ready-to-deploy blocks that accelerate customer time-to-market. Management expects royalty uplift to persist as v9 and CSS expand across end-markets.
2. Licensing as a Leading Indicator
Strong licensing bookings and ACV growth provide multi-year visibility into future royalty streams, with CSS and ATA (Arm Total Access, broad portfolio licensing) gaining traction. Arm’s ability to scale ATA to a broader customer base allows for predictable, recurring revenue and deeper customer lock-in, further expanding the company’s addressable market.
3. AI, Cloud, and Automotive Momentum
AI adoption is a cross-vertical growth vector, with Arm’s platform now foundational in cloud (Microsoft Azure Cobalt, Google Axion), automotive (ADAS and IVI), and edge devices. Partnerships with ecosystem leaders (e.g., Meta, GitHub) and growing software tool integration reinforce Arm’s relevance as AI workloads proliferate across devices and infrastructure.
4. Market Share Expansion in PCs and Data Center
Arm is targeting significant share gains in PCs and data centers, citing the superior power efficiency and performance of Arm-based silicon compared to legacy x86. Management reaffirmed a long-term ambition for 50% PC market share and expects the product lineup to broaden as more OEMs and chipmakers adopt Arm for a range of device tiers.
Key Considerations
This quarter crystallized Arm’s ability to extract higher value from each chip sold, while licensing momentum supports future royalty growth. However, the business faces evolving risks and execution variables as it scales its platform across new verticals.
Key Considerations:
- Royalty Uplift Sustainability: v9 and CSS are increasing average royalty rates, but the pace of adoption and competitive response will determine durability.
- Licensing Mix and Backlog Health: Strong bookings and ACV growth support future revenue, but licensing can be lumpy and is sensitive to the timing of large deals.
- End-Market Dynamics: Outperformance in cloud, automotive, and smartphones offset persistent industrial weakness, highlighting exposure to sector cycles.
- Legal and Customer Concentration Risks: Ongoing Qualcomm litigation and concentration in key customers (notably in China and mobile) remain structural risks.
Risks
Arm’s outlook is exposed to several key risks, including the outcome of ongoing litigation with Qualcomm, which could affect future licensing and royalty streams. End-market cyclicality, particularly in industrial and mid-tier smartphones, may dampen near-term growth. Competitive dynamics, such as alternative IP providers or in-house silicon designs by hyperscalers, could pressure pricing or share in strategic verticals. Management’s guidance already assumes a conservative stance on Qualcomm-related revenue, but legal and regulatory outcomes remain a variable.
Forward Outlook
For Q3, Arm guided to:
- Revenue between $920 and $970 million (midpoint +15% YoY growth)
- Non-GAAP operating expense of approximately $525 million
For full-year 2025, management reiterated guidance:
- Revenue between $3.8 and $4.1 billion (18% to 27% YoY growth)
- Non-GAAP operating expenses of approximately $2.05 billion (19% YoY increase)
- Non-GAAP EPS between $1.45 and $1.65
Management highlighted several factors that shape the outlook:
- Smartphone royalty growth driven by v9 and CSS mix shift
- Continued share gains in cloud and automotive verticals
- Networking expected to recover sequentially in Q3 and Q4; IoT recovery delayed to next year
- Large licensing deals expected to close, though revenue recognition timing is uncertain
Takeaways
Arm’s Q2 results demonstrate the power of its royalty leverage model, as value-based pricing and new IP adoption continue to outstrip underlying market growth. The licensing pipeline and ecosystem depth provide visibility and resilience, though execution in emerging verticals and legal outcomes will remain critical to the long-term thesis.
- Royalty Rate Expansion: v9 and CSS are driving a structural increase in per-chip economics, decoupling revenue from unit volumes.
- Licensing and Ecosystem Strength: Robust bookings and developer engagement underpin Arm’s platform moat and future royalty streams.
- Future Watchpoints: Monitor the pace of v9 and CSS adoption, legal developments, and Arm’s ability to scale share in PCs, data center, and automotive.
Conclusion
Arm’s Q2 2025 results underscore the company’s transition from volume-driven to value-driven growth, with royalty expansion and licensing strength supporting a multi-year runway. Execution in AI, cloud, and automotive verticals, coupled with ongoing ecosystem investments, position Arm as a critical enabler of next-generation compute, but investors should stay vigilant on legal and market risks.
Industry Read-Through
Arm’s outperformance and royalty leverage signal a broader shift in the semiconductor industry toward value-based IP monetization, particularly as AI and specialized workloads demand higher performance and efficiency. Cloud service providers’ embrace of Arm-based silicon, now at general availability in Microsoft Azure and Google Cloud, marks an inflection in data center architecture that competitors and suppliers must heed. Automotive and edge AI momentum suggest further disruption for legacy CPU incumbents. Vendors reliant on older architectures face margin pressure, while chipmakers and device OEMs are likely to accelerate adoption of advanced IP to remain competitive. The Arm ecosystem’s expanding developer and software tool integration also raises the bar for rivals in both hardware and software enablement.