Cirrus Logic, Inc. (CRUS)

収益の仕組み

Revenue comes from selling physical chips, recognised when the parts ship — there is no subscription or licensing stream of any size. Most of the volume is custom or semi-custom silicon co-developed with a handful of large device makers, sold not to those makers directly but to the contract manufacturers that assemble their products; a smaller share goes through distributors. Because the parts are designed into a specific phone or laptop model, revenue follows the life of that design win: a part wins a socket, ships in volume through the platform's build cycle, then falls away when the model is superseded unless it is designed into the successor. Sales are overwhelmingly international — roughly 99 percent of net sales in fiscal 2026 were billed outside the United States, reflecting where the contract manufacturers assemble, not where the end demand sits.

セグメント別売上高

Cirrus's durable asset is design know-how rather than a factory or a brand: decades of low-power analogue and mixed-signal engineering, a large patent base, and the ability to co-develop custom parts with a demanding platform owner over multi-year programmes. That work is genuinely hard to replicate — analogue design talent is scarce and the parts must hit power and acoustic targets inside a sealed phone. But the advantage is narrow, not wide, because the customer owns the architecture: it decides whether a function stays on a discrete Cirrus chip, moves into its own silicon, or goes to a second source. The moat protects the next design cycle, not the decade.

Demand tracks the consumer device cycle, and does so with a lag and an amplifier. Volumes are set by how many smartphones and PCs the platform owners build, which depends on the replacement cycle and on how compelling each year's model is; on top of that sits content per device — how many Cirrus chips, and at what price, make it into the next design. Both moved the right way in fiscal 2026, with smartphone demand for custom boosted amplifiers and 22-nanometer smart codecs and share gains in PCs helped by thinner devices, the MIPI SoundWire interface transition and AI-enabled PC adoption. The business is also strongly seasonal, since shipments are built ahead of autumn smartphone launches and the December quarter. There is no recurring revenue to cushion a weak cycle.

主なリスク

• One customer is almost the whole company — The 10-K discloses that Apple Inc., buying through several contract manufacturers, accounted for approximately 91 percent of total net sales in fiscal 2026, and that the ten largest customers were about 96 percent. The company warns that its revenue base is not diversified and that the loss of this customer, or a reduction in its orders, would materially hurt results.
• The customer can change the architecture — Among its risk factors the company flags changes in customer system architecture: a platform owner can redesign a product so that a Cirrus function is absorbed into its own processor, replaced by a competing part, or removed altogether. Design wins are decided programme by programme, so a single architectural decision can remove content that took years to build.
• No factories of its own — As a fabless company Cirrus depends on third parties for wafer fabrication, assembly and test, and discloses the limits of that model: it does not control capacity, yields or process transitions, and interruptions at a foundry or packaging partner would hit supply directly. The filing also lists obligations under a long-term capacity agreement with GlobalFoundries, which commits the company to purchase volumes regardless of how demand turns out.
• Consumer electronics demand is volatile and hard to forecast — The company identifies fluctuations in the consumer electronics and smartphone markets as a principal risk, together with product concentration and the difficulty of forecasting demand. Orders arrive against build schedules set by others; misjudging them leaves either unsold inventory, which the filing also lists as a risk, or an inability to supply.
• Trade policy, tariffs and export controls — The risk factors cover government trade policies, tariffs and export restrictions, and the exposure of international operations. With almost all shipments invoiced outside the United States and end products assembled in Asia, rules on where chips may be made, shipped or sold reach the business directly.
• Competition in a commoditising market — Cirrus lists semiconductor market competition among its risks, alongside the burden of developing new technologies, managing product complexity and security vulnerabilities, and executing manufacturing transitions. Rivals include far larger diversified chipmakers that can bundle audio and power functions into broader platforms.

主要顧客が売上高の91%を占める

In fiscal 2026 one end customer, Apple Inc., purchasing through multiple contract manufacturers, represented approximately 91 percent of total net sales; the ten largest customers together were about 96 percent. No other customer or distributor exceeded 10 percent. This is among the most concentrated revenue bases in the listed semiconductor sector, and it is a structural feature of the business rather than a passing one: the custom nature of the parts is exactly what ties them to a single platform.