No Customer Above Ten PercentWide moat
Sandisk (SNDK) — moat facet
Diversification protects against one customer leaving. It does nothing at all when every customer is buying the same commodity at the same price on the same day.
Three years of filings and one sentence covers the whole customer base: no customer above 10%.
The disclosure is identical in each of the last three annual reports — for fiscal 2026, 2025 and 2024, no customer accounted for more than 10% of net revenue.1 There is no named list, no top-ten percentage, no receivables concentration table of the kind Marvell publishes at 82% of revenue and 73% of gross receivables2.
What that buys is real. No single buyer can dictate terms, walk away with a material share of revenue, or use a threat of leaving as a negotiating lever. When Sandisk lost money for three straight years, it was not because a customer left; the price fell for everybody. And when the price rose, it could reallocate supply across three end markets and dozens of countries to whoever was paying most — which is exactly what it did, moving product out of Consumer and into Datacenter.
What it does not buy is independence from the cycle, and this is the point most easily missed. Diversification protects against idiosyncratic loss: one customer failing, one market softening. It does nothing against a correlated one. Every Sandisk customer buys NAND, and NAND has one price. A book of ten thousand buyers and a book of one buyer perform identically when the commodity repices, which is why revenue fell to $6,086 million in 2023 and reached $20,248 million in 2026 with roughly the same customers.3
Rated wide — the absence of concentration is genuinely durable and genuinely valuable, within its limits.
Watch for the first named customer above 10%. The New Business Models make that a matter of time.
The absence of concentration has held for three years and is about to end by design. A $31.3 billion pair of contracts makes a 10% customer likely rather than possible.
No customer is large, but every customer buys the same commodity, so all move together with price. Every end market jumping in the same quarter shows that correlation.
Source: Sandisk Q4 FY2026 results ↗- ReportedThe disclosure is identical in each of the last three annual reports — for fiscal 2026, 2025 and 2024, no customer accounted for more than 10% of net revenue. There is no named list, no top-ten percentage, no receivables concentration table of the kind Marvell publishes at 82% of revenue and 73% of gross receivables.Sandisk Corporation, Form 10-K for the fiscal year ended 3 July 2026 (SEC, CIK 2023554) — Item 1, Business, and Item 2, Properties. Sandisk describes itself as a leading global semiconductor memory company with more than 30 years of innovation in NAND flash, a vertically integrated solutions provider owning chip-level design and IP, front- and back-end manufacturing and systems engineering. Products address three end markets: Datacenter (formerly Cloud), Edge (formerly Client) and Consumer. It holds approximately 8,000 granted patents and approximately 3,000 pending patent applications worldwide, and states that although these have considerable value, successful manufacturing and marketing also depend upon the technical and managerial competence of its staff, so the patents cannot alone ensure its future success; it names non-patented intellectual property, particularly some of its process technology, as an important factor, protected by non-disclosure agreements, contractual provisions and internal safeguards, and discloses the risk that competitors may obtain and use such information and that foreign jurisdictions may give confidential information less protection. It relies on technology licensed from other parties and believes it has adequate cross-licences to compete. Competitors named are Kioxia, Micron Technology, Samsung Electronics, SK Hynix, Yangtze Memory Technologies and numerous smaller companies. All flash-based memory is obtained from the joint ventures with Kioxia; controllers are primarily designed in-house and manufactured by third-party foundries or bought from third parties. Assembly and test comprise in-house facilities at Penang, Malaysia, contract manufacturers, and the SDSS facility owned 20% by Sandisk and 80% by JCET Management. Sandisk and Kioxia operate three ventures — Flash Partners, Flash Alliance and Flash Forward — across eight flash manufacturing facilities in Japan, six at Yokkaichi and two at Kitakami; Flash Ventures accounts for approximately 80% of the total manufacturing capacity in the facilities owned by Kioxia. International sales represented 82%, 80% and 86% of net revenue for 2026, 2025 and 2024. For 2026, 2025 and 2024, no customer accounted for more than 10% of net revenue. Sandisk provides distributors and retailers with limited price protection and reimburses certain marketing expenditures. As of July 2026 the global team was approximately 11,100 employees across 33 countries — 74% in Asia Pacific, 19% in the Americas and 7% in Europe, the Middle East and Africa. Principal facilities include Penang, Malaysia (owned, 1,177,000 sq ft, flash R&D and manufacturing of media), Milpitas, California (leased, 578,000 sq ft), Kfar Saba, Israel (owned, 204,000 sq ft) and Bangalore, India (108,000 sq ft); all flash-based memory wafers are manufactured by the Flash Ventures in purpose-built wafer fabrication facilities that the Flash Ventures lease at Yokkaichi and Kitakami. Item 3 reports no material legal proceedings other than ordinary routine litigation. — FY2026 · publ. 2026-08-17 · source ↗
- ReportedThere is no named list, no top-ten percentage, no receivables concentration table of the kind Marvell publishes at 82% of revenue and 73% of gross receivables.Marvell Form 10-K, FY2026 — customer concentration: ten largest customers 82% of total net revenue; two customers above 10% (Direct Customer A 14%, up from 13%; Distributor A 37%, up from 34% and 24%); accounts receivable concentrated with four customers at 73% of gross receivables (72% prior year); net revenue by customer type direct $4,630.4M (57%) and distributors $3,564.2M (43%) — FY2026 (ended January 31, 2026) · publ. March 11, 2026 · source ↗
- ReportedA book of ten thousand buyers and a book of one buyer perform identically when the commodity repices, which is why revenue fell to $6,086 million in 2023 and reached $20,248 million in 2026 with roughly the same customers. Rated wide — the absence of concentration is genuinely durable and genuinely valuable, within its limits.Sandisk Corporation, Form 10-K for the fiscal year ended 27 June 2025 (SEC, CIK 2023554) — consolidated statements of operations for fiscal 2025, 2024 and 2023. Revenue net $7,355 million, $6,663 million and $6,086 million; cost of revenue $5,143 million, $5,591 million and $5,656 million; gross profit $2,212 million (30.1%), $1,072 million (16.1%) and $430 million (7.1%); research and development $1,132 million (15.4%), $1,061 million (15.9%) and $1,167 million (19.2%); selling, general and administrative $573 million, $455 million and $558 million; goodwill impairment $1,830 million in 2025 and $671 million in 2023; total operating expenses $3,589 million, $1,540 million and $2,465 million; operating loss $1,377 million, $468 million and $2,035 million; net loss $1,641 million, $672 million and $2,143 million. Net loss per common share, basic and diluted, of $11.32, $4.63 and $14.78 on 145 million weighted average shares in each year. Revenue by end market on the prior labels: Cloud $960 million, $325 million and $500 million; Client $4,127 million, $4,069 million and $3,637 million; Consumer $2,268 million, $2,269 million and $1,949 million. Revenue by geography: Asia $4,457 million, $4,510 million and $3,890 million; Americas $1,618 million, $1,095 million and $1,266 million; Europe, Middle East and Africa $1,280 million, $1,058 million and $930 million. No customer accounted for more than 10% of net revenue in any of the three years. — FY2025 · publ. 2025-08-21 · source ↗