Deposits, Guarantees and CollateralNarrow moat

Sandisk (SNDK) — moat facet

Customers are wiring deposits to hold supply: refund liabilities went from $126 million to $1,500 million in a year. That is a firmer commitment than NAND has ever obtained.

The customers are posting collateral, and it is on the balance sheet.

Customer collateral on the balance sheet ($M)$126MRefund liabilities FY2025$1,500MRefund liabilities FY2026$25MContract liabilities FY2025$1,242MContract liabilities FY2026Deposits and advances. Sandisk says the guarantees may not fully offset revenue lost to a default.
Customers are wiring cash to hold supply — a firmer commitment than NAND has ever obtained, and not the same thing as revenue.

Two lines that did not meaningfully exist a year ago. Contract liabilities of $1,242 million, being customer payments received in advance of performance under the long-term agreements. And refund liabilities of $1,500 million, being refundable security deposits customers are required to maintain during the contract term — against $126 million a year earlier.1 Some agreements instead require collateral established with third-party financial institutions.2

This is what distinguishes an NBM from a purchase order, and it is the part of the strategy with the least hand-waving in it. A customer that has wired a deposit has made the commitment expensive to walk away from, and Sandisk has the cash in the meantime — which is part of why operating cash flow reached $11,671 million against net income of $11,433 million.3

The guarantees are also honestly described. Sandisk states that they are "intended to offset a portion of revenue that may be lost" if a customer fails to perform, but "may not fully offset such lost revenue depending on the specific circumstances," when in the term the failure occurs, and other factors.4 A deposit is a deterrent and a partial recovery. It is not the revenue.

There is a mirror risk. Sandisk warns that increases in customers' credit risk could result in credit losses, and that term extensions granted to customers with credit losses could raise operating costs.5

Watch refund and contract liabilities together. If the NBM book is growing, they should grow with it; if they flatten while agreements are announced, the collateral is getting thinner.

Moat trajectory: Widening

Refund liabilities went from $126 million to $1,500 million and contract liabilities from $25 million to $849 million current plus $393 million non-current. Customers are posting materially more collateral than a year ago.

The number that tests this moat
Reported
Customer deposits and advances held
$1,500M refund liabilities, $1,242M contract liabilities

Refund liabilities are refundable security deposits customers must maintain during the contract term, against $126M a year earlier; contract liabilities are customer payments received in advance of performance. Some agreements instead require collateral with third-party financial institutions. This is what distinguishes an NBM from a purchase order, and part of why operating cash flow of $11,671M exceeded net income of $11,433M. Sandisk concedes the guarantees may not fully offset lost revenue. Watch collateral against announced volume.

Source: Sandisk Form 10-K, FY2026 ↗
⚠ Threats to the moat
References
  1. ReportedAnd refund liabilities of $1,500 million, being refundable security deposits customers are required to maintain during the contract term — against $126 million a year earlier. Some agreements instead require collateral established with third-party financial institutions.
    Sandisk Corporation, Form 10-K FY2026 — consolidated statements of operations, balance sheets and cash flows, and the results-of-operations and liquidity discussion in Item 7. Revenue net $20,248 million against $7,355 million and $6,663 million in the two prior years, up 175%; cost of revenue $5,776 million (28.5% of revenue); gross profit $14,472 million (71.5%, up 4,100 basis points); research and development $1,328 million (6.6%); selling, general and administrative $676 million (3.3%); loss on debt extinguishment $46 million; business separation costs $25 million; total operating expenses $2,083 million; operating income $12,389 million (61.3%); gain on equity securities $808 million; interest income $70 million; interest expense $73 million; other expense $177 million; income before taxes $13,017 million; income tax expense $1,584 million at a 12% effective rate (against negative 11% and negative 34%); net income $11,433 million (56.5%) against losses of $1,641 million and $672 million. Basic EPS $77.78 and diluted $73.76, on 147 million basic and 155 million diluted weighted average shares. Revenue by end market: Datacenter $5,153 million, $960 million and $325 million; Edge $12,160 million, $4,127 million and $4,069 million; Consumer $2,935 million, $2,268 million and $2,269 million. Revenue by geography: Asia $14,241 million, Americas $4,275 million, EMEA $1,732 million. Datacenter revenue rose 437% with products sold up almost 120% on an exabyte basis and revenue per gigabyte up almost 150%; Edge rose 195% with exabytes up a high single-digit percentage and revenue per gigabyte up almost 180%; Consumer rose 29% with exabytes DOWN a mid-teens percentage and revenue per gigabyte up a low-fifties percentage; total products sold increased by a mid-teens percentage on an exabyte basis. Sales incentive and marketing programmes represented 11%, 19% and 19% of gross revenues in 2026, 2025 and 2024. Balance sheet at 3 July 2026: cash and cash equivalents $4,762 million, accounts receivable $4,708 million, inventories $2,698 million, total current assets $12,780 million, marketable equity securities $1,777 million, property plant and equipment net $674 million, notes receivable and investments in Flash Ventures $678 million, goodwill $4,994 million, total assets $22,507 million; refund liabilities $1,500 million (from $126 million), contract liabilities $849 million current and $393 million non-current, income tax payable $1,286 million, total current liabilities $5,581 million, long-term debt nil (from $1,829 million), total liabilities $6,771 million, treasury stock $4,537 million, retained earnings $9,649 million (from an accumulated deficit of $1,784 million), total shareholders' equity $15,736 million, 149 million shares issued and 146 million outstanding. Cash flows: operating activities provided $11,671 million against $84 million and a use of $309 million; investing used $1,386 million including $970 million of purchases of marketable equity securities, $275 million of net issuances related to Flash Ventures and $177 million of capital expenditures; financing used $7,001 million including $4.5 billion of share repurchases, $1.9 billion of Term Loan repayments and settlement and $630 million of taxes on vested stock awards. Cash conversion cycle 162 days (DSO 48, DIO 178, DPO 64). $2,879 million of cash was held outside the US. Contract liabilities were $1,242 million and refund liabilities $1,500 million under long-term agreements. Unrecognised tax benefits were approximately $323 million. Tax holidays in Malaysia expire at various dates during 2028 through 2031. Total material cash requirements were $11,760 million, of which Flash Ventures-related commitments were $6,559 million and purchase obligations and other commitments $4,902 million. — FY2026 · publ. 2026-08-17 · source ↗
  2. ReportedSome agreements instead require collateral established with third-party financial institutions. This is what distinguishes an NBM from a purchase order, and it is the part of the strategy with the least hand-waving in it.
    Sandisk Corporation, Form 10-K FY2026 — consolidated statements of operations, balance sheets and cash flows, and the results-of-operations and liquidity discussion in Item 7. Revenue net $20,248 million against $7,355 million and $6,663 million in the two prior years, up 175%; cost of revenue $5,776 million (28.5% of revenue); gross profit $14,472 million (71.5%, up 4,100 basis points); research and development $1,328 million (6.6%); selling, general and administrative $676 million (3.3%); loss on debt extinguishment $46 million; business separation costs $25 million; total operating expenses $2,083 million; operating income $12,389 million (61.3%); gain on equity securities $808 million; interest income $70 million; interest expense $73 million; other expense $177 million; income before taxes $13,017 million; income tax expense $1,584 million at a 12% effective rate (against negative 11% and negative 34%); net income $11,433 million (56.5%) against losses of $1,641 million and $672 million. Basic EPS $77.78 and diluted $73.76, on 147 million basic and 155 million diluted weighted average shares. Revenue by end market: Datacenter $5,153 million, $960 million and $325 million; Edge $12,160 million, $4,127 million and $4,069 million; Consumer $2,935 million, $2,268 million and $2,269 million. Revenue by geography: Asia $14,241 million, Americas $4,275 million, EMEA $1,732 million. Datacenter revenue rose 437% with products sold up almost 120% on an exabyte basis and revenue per gigabyte up almost 150%; Edge rose 195% with exabytes up a high single-digit percentage and revenue per gigabyte up almost 180%; Consumer rose 29% with exabytes DOWN a mid-teens percentage and revenue per gigabyte up a low-fifties percentage; total products sold increased by a mid-teens percentage on an exabyte basis. Sales incentive and marketing programmes represented 11%, 19% and 19% of gross revenues in 2026, 2025 and 2024. Balance sheet at 3 July 2026: cash and cash equivalents $4,762 million, accounts receivable $4,708 million, inventories $2,698 million, total current assets $12,780 million, marketable equity securities $1,777 million, property plant and equipment net $674 million, notes receivable and investments in Flash Ventures $678 million, goodwill $4,994 million, total assets $22,507 million; refund liabilities $1,500 million (from $126 million), contract liabilities $849 million current and $393 million non-current, income tax payable $1,286 million, total current liabilities $5,581 million, long-term debt nil (from $1,829 million), total liabilities $6,771 million, treasury stock $4,537 million, retained earnings $9,649 million (from an accumulated deficit of $1,784 million), total shareholders' equity $15,736 million, 149 million shares issued and 146 million outstanding. Cash flows: operating activities provided $11,671 million against $84 million and a use of $309 million; investing used $1,386 million including $970 million of purchases of marketable equity securities, $275 million of net issuances related to Flash Ventures and $177 million of capital expenditures; financing used $7,001 million including $4.5 billion of share repurchases, $1.9 billion of Term Loan repayments and settlement and $630 million of taxes on vested stock awards. Cash conversion cycle 162 days (DSO 48, DIO 178, DPO 64). $2,879 million of cash was held outside the US. Contract liabilities were $1,242 million and refund liabilities $1,500 million under long-term agreements. Unrecognised tax benefits were approximately $323 million. Tax holidays in Malaysia expire at various dates during 2028 through 2031. Total material cash requirements were $11,760 million, of which Flash Ventures-related commitments were $6,559 million and purchase obligations and other commitments $4,902 million. — FY2026 · publ. 2026-08-17 · source ↗
  3. ReportedA customer that has wired a deposit has made the commitment expensive to walk away from, and Sandisk has the cash in the meantime — which is part of why operating cash flow reached $11,671 million against net income of $11,433 million. The guarantees are also honestly described.
    Sandisk Corporation, Form 10-K FY2026 — consolidated statements of operations, balance sheets and cash flows, and the results-of-operations and liquidity discussion in Item 7. Revenue net $20,248 million against $7,355 million and $6,663 million in the two prior years, up 175%; cost of revenue $5,776 million (28.5% of revenue); gross profit $14,472 million (71.5%, up 4,100 basis points); research and development $1,328 million (6.6%); selling, general and administrative $676 million (3.3%); loss on debt extinguishment $46 million; business separation costs $25 million; total operating expenses $2,083 million; operating income $12,389 million (61.3%); gain on equity securities $808 million; interest income $70 million; interest expense $73 million; other expense $177 million; income before taxes $13,017 million; income tax expense $1,584 million at a 12% effective rate (against negative 11% and negative 34%); net income $11,433 million (56.5%) against losses of $1,641 million and $672 million. Basic EPS $77.78 and diluted $73.76, on 147 million basic and 155 million diluted weighted average shares. Revenue by end market: Datacenter $5,153 million, $960 million and $325 million; Edge $12,160 million, $4,127 million and $4,069 million; Consumer $2,935 million, $2,268 million and $2,269 million. Revenue by geography: Asia $14,241 million, Americas $4,275 million, EMEA $1,732 million. Datacenter revenue rose 437% with products sold up almost 120% on an exabyte basis and revenue per gigabyte up almost 150%; Edge rose 195% with exabytes up a high single-digit percentage and revenue per gigabyte up almost 180%; Consumer rose 29% with exabytes DOWN a mid-teens percentage and revenue per gigabyte up a low-fifties percentage; total products sold increased by a mid-teens percentage on an exabyte basis. Sales incentive and marketing programmes represented 11%, 19% and 19% of gross revenues in 2026, 2025 and 2024. Balance sheet at 3 July 2026: cash and cash equivalents $4,762 million, accounts receivable $4,708 million, inventories $2,698 million, total current assets $12,780 million, marketable equity securities $1,777 million, property plant and equipment net $674 million, notes receivable and investments in Flash Ventures $678 million, goodwill $4,994 million, total assets $22,507 million; refund liabilities $1,500 million (from $126 million), contract liabilities $849 million current and $393 million non-current, income tax payable $1,286 million, total current liabilities $5,581 million, long-term debt nil (from $1,829 million), total liabilities $6,771 million, treasury stock $4,537 million, retained earnings $9,649 million (from an accumulated deficit of $1,784 million), total shareholders' equity $15,736 million, 149 million shares issued and 146 million outstanding. Cash flows: operating activities provided $11,671 million against $84 million and a use of $309 million; investing used $1,386 million including $970 million of purchases of marketable equity securities, $275 million of net issuances related to Flash Ventures and $177 million of capital expenditures; financing used $7,001 million including $4.5 billion of share repurchases, $1.9 billion of Term Loan repayments and settlement and $630 million of taxes on vested stock awards. Cash conversion cycle 162 days (DSO 48, DIO 178, DPO 64). $2,879 million of cash was held outside the US. Contract liabilities were $1,242 million and refund liabilities $1,500 million under long-term agreements. Unrecognised tax benefits were approximately $323 million. Tax holidays in Malaysia expire at various dates during 2028 through 2031. Total material cash requirements were $11,760 million, of which Flash Ventures-related commitments were $6,559 million and purchase obligations and other commitments $4,902 million. — FY2026 · publ. 2026-08-17 · source ↗
  4. ReportedSandisk states that they are "intended to offset a portion of revenue that may be lost" if a customer fails to perform, but "may not fully offset such lost revenue depending on the specific circumstances," when in the term the failure occurs, and other factors. A deposit is a deterrent and a partial recovery.
    Sandisk Corporation, Form 10-K FY2026 — Item 1A, Risk Factors, and the New Business Models discussion in Item 7. Sandisk states that the terms of its agreements with Kioxia require that substantially all of its flash-based memory be obtained from Flash Ventures, which limits its ability to respond to market demand and supply changes; that it is contractually obligated to pay for 50% of the fixed costs of Flash Ventures regardless of whether it orders any flash-based memory and that orders placed on a rolling basis are binding; that while Flash Ventures is operating its agreements contain limitations on its ability to work with third parties to manufacture flash-based memory, to fabricate beyond the capacity specified in the agreements, or to manufacture flash itself except to the extent it acquires manufacturing capacity of a Flash Ventures entity through dissolution, termination or acquisition; and that this could also impair its ability to consolidate with other industry participants who manufacture flash-based memory. It notes that in 2023 Western Digital incurred $296 million in charges for unabsorbed manufacturing overhead from reduced utilisation and $108 million of inventory write-downs, and that in 2025 Sandisk incurred $75 million of underutilisation charges and $24 million of inventory write-downs. It states that although the operating period has been extended every time since the ventures began, there is a risk that Sandisk and Kioxia will be unable to agree on a further extension of one or more entities, and that it cannot unilaterally direct most of Flash Ventures' activities. A separate risk factor states that provisions in the joint venture agreements with Kioxia may deter, prevent or delay an acquisition of Sandisk, listing restrictions limiting its ability and that of its affiliates to manufacture or have a third party fabricate flash memory outside Flash Ventures' Yokkaichi and Kitakami facilities, restrictions limiting fabrication beyond its share of Flash Ventures' capacity, and restrictions limiting transfers of equity in the Flash Ventures entities, particularly partial transfers; an acquirer would need Kioxia's consent or waiver with no guarantee of obtaining it, and the provisions could substantially impede the ability of public stockholders to benefit from future strategic transactions and adversely affect the market price. On the New Business Models, Sandisk states that these long-term agreements commit it to deliver and customers to purchase a stated volume of products mostly over multi-year periods, with pricing mechanisms consisting of fixed and variable components supported by financial guarantees; that NBMs are expected to become its predominant way of doing business, contributing to greater predictability of revenue, supporting production planning and enhancing supply assurance; and that while the agreements do not eliminate the risks associated with customer demand, market conditions or operational execution, it believes they reduce certain elements of industry cyclicality. The risk factor warns that if it is unable to deliver products in the quantities, at the times, or meeting the specifications required, it may face contractual damages, other financial penalties or early termination; that if a customer breaches its purchase obligations it may need to find alternative customers and may be unable to resell those products at comparable prices, or at all, resulting in reduced revenue, lower margins, excess inventory, or manufacturing underutilisation or asset impairment charges; that the agreements may constrain a portion of its available supply and limit its flexibility to respond to changes in market conditions, including shifts in demand, pricing opportunities, or customer requirements; and that the financial guarantees are intended to offset a portion of revenue that may be lost but may not fully offset such lost revenue depending on the specific circumstances, when during the contract term the failure occurs, and other factors. Further risk factors cover rising customer credit risk, loss of revenue from a key customer or customer base consolidation, and that the share repurchase programme may not enhance shareholder value and could affect the stock price and reduce financial flexibility. Sandisk discloses pending investigations initiated by the United States under Section 232 of the Trade Expansion Act of 1962 and Section 301 of the Trade Act of 1974 that may impact tariff rates; the majority of its products sold in the US are currently exempt from tariffs, and additional tariff increases or loss of exemptions would increase cost of goods sold and could reduce demand. On the Nanya investment made in March 2026, it warns that increases in the value of the investment could influence financial results in accordance with GAAP accounting in a manner that is not representative of its core business. — FY2026 · publ. 2026-08-17 · source ↗
  5. ReportedSandisk warns that increases in customers' credit risk could result in credit losses, and that term extensions granted to customers with credit losses could raise operating costs. Watch refund and contract liabilities together.
    Sandisk Corporation, Form 10-K FY2026 — Item 1A, Risk Factors, and the New Business Models discussion in Item 7. Sandisk states that the terms of its agreements with Kioxia require that substantially all of its flash-based memory be obtained from Flash Ventures, which limits its ability to respond to market demand and supply changes; that it is contractually obligated to pay for 50% of the fixed costs of Flash Ventures regardless of whether it orders any flash-based memory and that orders placed on a rolling basis are binding; that while Flash Ventures is operating its agreements contain limitations on its ability to work with third parties to manufacture flash-based memory, to fabricate beyond the capacity specified in the agreements, or to manufacture flash itself except to the extent it acquires manufacturing capacity of a Flash Ventures entity through dissolution, termination or acquisition; and that this could also impair its ability to consolidate with other industry participants who manufacture flash-based memory. It notes that in 2023 Western Digital incurred $296 million in charges for unabsorbed manufacturing overhead from reduced utilisation and $108 million of inventory write-downs, and that in 2025 Sandisk incurred $75 million of underutilisation charges and $24 million of inventory write-downs. It states that although the operating period has been extended every time since the ventures began, there is a risk that Sandisk and Kioxia will be unable to agree on a further extension of one or more entities, and that it cannot unilaterally direct most of Flash Ventures' activities. A separate risk factor states that provisions in the joint venture agreements with Kioxia may deter, prevent or delay an acquisition of Sandisk, listing restrictions limiting its ability and that of its affiliates to manufacture or have a third party fabricate flash memory outside Flash Ventures' Yokkaichi and Kitakami facilities, restrictions limiting fabrication beyond its share of Flash Ventures' capacity, and restrictions limiting transfers of equity in the Flash Ventures entities, particularly partial transfers; an acquirer would need Kioxia's consent or waiver with no guarantee of obtaining it, and the provisions could substantially impede the ability of public stockholders to benefit from future strategic transactions and adversely affect the market price. On the New Business Models, Sandisk states that these long-term agreements commit it to deliver and customers to purchase a stated volume of products mostly over multi-year periods, with pricing mechanisms consisting of fixed and variable components supported by financial guarantees; that NBMs are expected to become its predominant way of doing business, contributing to greater predictability of revenue, supporting production planning and enhancing supply assurance; and that while the agreements do not eliminate the risks associated with customer demand, market conditions or operational execution, it believes they reduce certain elements of industry cyclicality. The risk factor warns that if it is unable to deliver products in the quantities, at the times, or meeting the specifications required, it may face contractual damages, other financial penalties or early termination; that if a customer breaches its purchase obligations it may need to find alternative customers and may be unable to resell those products at comparable prices, or at all, resulting in reduced revenue, lower margins, excess inventory, or manufacturing underutilisation or asset impairment charges; that the agreements may constrain a portion of its available supply and limit its flexibility to respond to changes in market conditions, including shifts in demand, pricing opportunities, or customer requirements; and that the financial guarantees are intended to offset a portion of revenue that may be lost but may not fully offset such lost revenue depending on the specific circumstances, when during the contract term the failure occurs, and other factors. Further risk factors cover rising customer credit risk, loss of revenue from a key customer or customer base consolidation, and that the share repurchase programme may not enhance shareholder value and could affect the stock price and reduce financial flexibility. Sandisk discloses pending investigations initiated by the United States under Section 232 of the Trade Expansion Act of 1962 and Section 301 of the Trade Act of 1974 that may impact tariff rates; the majority of its products sold in the US are currently exempt from tariffs, and additional tariff increases or loss of exemptions would increase cost of goods sold and could reduce demand. On the Nanya investment made in March 2026, it warns that increases in the value of the investment could influence financial results in accordance with GAAP accounting in a manner that is not representative of its core business. — FY2026 · publ. 2026-08-17 · source ↗
Sources
Generated September 23, 2026