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What happened with ARM today?

Why it moved
Explains possible causes using the day’s news and filings
Moving with the market?
Uses market moves and trading volume to assess what drove the change
What to watch next
The next thing that could change the call, and what to look for

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Uses news and trading volume to explain the day’s move and how it relates to the market.

Investment outlook

ARM in three months: buy, wait or sell?

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  • Buy / Wait / Sell rating
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Company

Company overview

Arm Holdings supplies CPU designs and related technology that semiconductor companies, device makers and cloud providers use to design chips. Customers can license ready-developed processor designs or the architecture needed to build their own compatible CPUs. They pay for access to the technology and then pay royalties on substantially all chips shipped using Arm products. Chips can stay in production for years, extending the income from a license. Royalties provide the larger share of revenue, alongside substantial license and other income.

Mobile application processors—the chips that run smartphone applications—are Arm’s largest revenue market. Data centers are its fastest-growing revenue market. Its income depends on customers choosing Arm technology and successfully manufacturing and selling their chips, supported by compatible software and chip-design tools.

A small group of major customers accounts for most revenue, including Arm China and SoftBank Group. Arm receives substantially all China-related revenue through independently operated Arm China, which sublicenses its technology and pays Arm a share of license fees and royalties. Arm depends on that partner’s reporting and payments. U.S. and U.K. export controls require licenses before Arm can deliver its Neoverse V-series processors to customers in China.

Arm is also expanding beyond technology licensing into chips it designs itself, beginning with the announced Arm AGI CPU, with production planned. This adds reliance on outside manufacturers and can put Arm in competition with its licensing customers.

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Source: SEC filing

Red flags

Know what’s buried in ARM’s filings before you buy

The risk section is the longest, dullest part of the filing. This keeps only what can really hurt you: where it hits, how hard, when it plays out.

Sorted into
  • Happening now
  • Could go wrong
  • Built in

Moat

ARM says it has a moat. Does it hold up?

Every company claims an edge. Each one is checked against hard numbers like margins and returns: which hold, and which line gives way first.

Each edge rated
  • Strong
  • Moderate
  • Limited
  • Unproven

Related companies

  • Competition
  • Shared drivers
  • Supplier
  • Customer

Arm’s results also hinge on Arm China, its exclusive mainland-China IP distributor, which accounted for approximately 16% of fiscal 2026 revenue.

  • Qualcomm’s Snapdragon mobile-chip shipments feed Arm’s royalties: Qualcomm sells processors to device manufacturers and pays to use Arm’s architecture in its designs. Watch those shipments and Arm’s pending appeal in the architecture-license dispute, which bears on Arm’s licensing power.

  • NVIDIA’s AI-system deployments expand the market for Arm-based data-center computing, while NVIDIA pays to use Arm technology in Grace CPUs and other processors. Its deployment of AI and accelerated-computing systems is the development to watch for Arm’s data-center opportunity.

  • Intel competes for the PC-maker and cloud-provider business that Arm-based processors need to win, selling its own x86 CPUs rather than licensing processor designs as Arm does. Watch Intel’s PC and server processor sales for evidence of how firmly x86 holds those markets.

  • AMD’s x86 PC and server processors compete with Arm-based chips for computing workloads and increasingly with Arm’s own chips. AMD sells processors through direct sales, equipment makers and distributors, while Arm has primarily charged customers to use its designs.

  • Marvell’s custom-chip designs bring Arm license revenue, and shipments of those chips bring royalties: Marvell uses Arm compute designs in chips tailored to data-infrastructure customers. Watch the designs and shipments from its custom-chip platform, rather than treating all Marvell revenue as Arm-linked.

  • Broadcom’s shipments of certain networking, broadband and custom chips contribute to Arm royalties because those products use Arm processor technology. Watch those parts of Broadcom’s chip portfolio, not its infrastructure-software business.

  • TSMC’s ability to manufacture Arm-based chips helps determine the shipments that earn Arm royalties; customers pay TSMC to make chips from their designs, rather than to license processor designs. Watch its production capacity and execution on advanced manufacturing processes.

  • Arteris, Inc. competes for the fees chip designers could otherwise pay Arm for designs that connect processors, memory and other blocks inside a chip. Its adoption by chip designers is a signal of competition for Arm’s interconnect products, not its CPU designs.

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  • CEVA Inc. competes for chip designers’ licensing budgets with processor and AI designs that overlap Arm’s graphics, AI and other compute offerings for mobile and embedded devices. Watch adoption of its processor and AI IP by semiconductor companies and equipment makers that integrate the designs into their own chips.

  • Cadence shares Arm’s exposure to chip-design spending: the designers paying Arm for processor technology also buy Cadence’s design tools and silicon IP. Cadence also bought Arm’s Artisan foundation-IP business, making it the company to follow for that former Arm product line.

Agenda

in 7 daysMon, Oct 26

  1. Time to be announced

    Cadence Design Systems earningsCDNS

    Cadence’s report will show chip designers’ demand for design tools and silicon IP; Cadence also acquired Arm’s Artisan foundation-IP business, offering a read on demand for that product line.

in 10 daysThu, Oct 29

  1. Time to be announced

    Intel Corp earningsINTC

    Intel’s report will show PC and server demand for its x86 processors, which compete for the same computing workloads as chips designed by Arm licensees.

in 16 daysWed, Nov 4

  1. Time to be announced
    Major

    Arm Holdings plc earningsThis company

    Arm earns licensing fees and royalties when chips using its technology ship; this report will show whether new demand for its IP and shipments from existing designs are both supporting revenue.

  2. Time to be announced

    Qualcomm Inc earningsQCOM

    Qualcomm’s Snapdragon shipments feed Arm’s mobile-processor royalties; its report may also update the architecture-license dispute, whose status can only be established by company disclosure.

in 30 daysWed, Nov 18

  1. Time to be announced

    Nvidia Corp earningsNVDA

    NVIDIA’s AI and accelerated-computing deployments will show how data-center demand is developing; where its systems use licensed Arm technology, they also create licensing and per-chip royalty opportunities for Arm.

in 43 daysTue, Dec 1

  1. Time to be announced

    Marvell Technology, Inc. earningsMRVL

    Marvell designs custom chips for data-infrastructure customers: designs can bring Arm license fees and shipments can bring royalties, making its report a read on that revenue path.