⚠ The Customer Who Built the ReplacementHigh threat

Qualcomm (QCOM) — threat to the moat

Six years of co-engineering with the organisation that was designing you out of the product.

When your customer becomes your competitor, you lose the revenue and hand over the roadmap you built together.

Six years inside the customer2019 Apple buysIntel modems2019-2025still Qualcomm'slargest customer2025 Appleships its own2026 handsets-20%Apple-related revenue guided down roughly 50% between September and December.
Co-engineering with the organisation designing you out of the product.

Apple bought Intel's modem business in 2019 and shipped a competing part in 2025.1 Over the intervening six years it remained Qualcomm's largest customer, which meant Qualcomm was supplying, supporting and co-engineering with the organisation building its replacement. That is not a mistake anyone made; it is the structure of selling components to companies large enough to make them.

The revenue effect is now measurable: handset revenue down 20% year over year in the June 2026 quarter, with Apple-related revenue guided to fall roughly 50% between the September and December quarters.2

The second-order effect is worse and less discussed. Apple's modem programme proves the thing can be done at a known cost, and it publishes that proof to every other large handset maker. Samsung already builds Exynos. The Chinese manufacturers have state backing and 46% of Qualcomm's revenue between them.3

The counterweight is that a phone still needs a licence whatever chip is inside it, so the toll survives the defection even when the sale does not.

Watch whether any customer other than Apple announces a modem programme. That is the signal that changes the rating.

References
  1. ReportedApple bought Intel's modem business in 2019 and shipped a competing part in 2025.
    Public record of Apple's modem programme, referenced in coverage of Qualcomm's third-quarter fiscal 2026 results. Apple acquired Intel's smartphone modem business in 2019 and shipped its own modem in 2025, since widening its use; Qualcomm's QCT handset revenue fell 20% year over year in the quarter ended 28 June 2026 and management guided Apple-related revenue to fall by approximately 50% between the September and December quarters. — 2019-2026 · publ. 2026-07-30 · source ↗
  2. ReportedThe revenue effect is now measurable: handset revenue down 20% year over year in the June 2026 quarter, with Apple-related revenue guided to fall roughly 50% between the September and December quarters.
    Coverage of Qualcomm's third-quarter fiscal 2026 results, July 2026 — revenue of $9.9 billion and non-GAAP earnings per share of $2.21, meeting the high end of revenue guidance and short of consensus on earnings. QCT handset revenue of $5.09 billion declined 20% year over year on industry-wide memory supply constraints, higher input costs affecting device pricing and demand, and inventory adjustments at major OEMs; automotive revenue of $1.59 billion rose 61% and IoT of $1.83 billion rose 9%. Management said a sharper-than-expected reduction in Apple modem-related sales contributed to a lighter fourth-quarter outlook, with Apple-related revenues expected to fall by approximately 50% between the September and December quarters, and doubled the fiscal 2029 non-handset revenue target to $40 billion. Fourth-quarter guidance was $9.7-10.5 billion of revenue and $2.05-2.25 of non-GAAP diluted EPS, both below consensus near $10.02 billion and $2.36. — Q3 FY2026 · publ. 2026-07-30 · source ↗
  3. ReportedThe Chinese manufacturers have state backing and 46% of Qualcomm's revenue between them.
    Qualcomm Incorporated, Form 10-K for the fiscal year ended 28 September 2025 (SEC, CIK 804328) — Item 1, Business, and the revenue-concentration and geographic disclosures. Qualcomm operates through QCT (semiconductors) and QTL (licensing), with QSI making strategic investments. QTL grants licences to portions of a patent portfolio including rights essential to and/or useful in the manufacture and sale of certain wireless products. In fiscal 2025 revenues from Apple, Samsung and Xiaomi each comprised 10% or more of consolidated revenues. Revenues by country, reported by customer or licensee headquarters: China including Hong Kong $20,340M (46%), United States $10,515M (24%), South Korea $9,542M (21%), other foreign $3,887M (9%), total $44,284M; the equivalent 2023 figures were $13,386M (37%), $10,503M (29%), $8,075M (23%) and $3,856M (11%). Approximately 52,000 full-time, part-time and temporary workers at 28 September 2025, in over 200 locations in 38 countries, with a voluntary turnover rate around 6%. Named registry and semiconductor competitors and the risk factors relating to customer vertical integration are set out in the same Item. — FY2025 · publ. 2025-11-05 · source ↗
Sources
Generated September 23, 2026