Fitch Ratings has affirmed Sandisk Corp.'s Long-Term Issuer Default Rating (IDR) at 'BB' and first-lien senior secured rating at 'BBB-' with a Recovery Rating of 'RR1'.

The Outlook is Stable. The ratings and Outlook reflect excess bit-demand, which strengthened FCF and increased financial flexibility after the company's separation from Western Digital Corp., enabling it to reduce debt and reach its net cash position ahead of target.

Key Rating Drivers

Conservative Capitalization: Sandisk is conservatively capitalized for the rating, allowing the company to maintain EBITDA leverage in the 1.0x-4.0x range through the cycle. Since the Feb. 21, 2025 separation, with $2.0 billion of debt incurred to fund a dividend to Western Digital, Sandisk has reduced debt by $600 million with FCF to $1.4 billion. This supports the company's ability to sustain EBITDA leverage within our 3.5x negative rating sensitivity amid a moderate and more protracted industry downturn. Positive FCF should add to Sandisk's net cash position and increase the company's flexibility to invest in innovation and additional capacity.

Low but Strengthening Profitability: Profit margins should continue to strengthen from lows reached during the historic inventory correction of fiscal years 2023-2024, but could remain below memory and disk drive peers. Excess bit-demand and rapidly increasing mix of higher margin BiCS8 product sales should drive adjusted gross profit margin expansion to over 40% nearer term. However, Fitch expects inevitable industry supply additions to moderate gross margins to the mid-30% average through the cycle. Lower inventory days will also drive higher FCF margins through the cycle, with the average potentially approaching Fitch's mid-single digit positive rating sensitivity.

Cyclical Operating Results: Sandisk's operating results will remain cyclical relative to memory and disk drive peers absent meaningful consolidation in the NAND-flash industry. A handful of NAND-flash suppliers represent 90% of the NAND market, but aggregate industry supply additions drive NAND prices, and ultimately, revenue and profitability. The 2023 downturn was the most severe in industry history and may have been an aberration, but Fitch expects more typical inventory corrections to persist and inefficiencies related to supply-chain regionalization and trade policies to heighten cyclicality.

Reliance on Strategic JV: Fitch believes the joint venture (JV) with Kioxia, Flash Ventures, to be essential to Sandisk's ability to source NAND at favorable economics. Flash Ventures is among the longest-tenured JVs in the technology sector and has not experienced financial distress. However, any limitations on availability at the JV or deterioration could materially affect Sandisk's operating performance. Meanwhile, Sandisk's obligation to fund roughly half of the JV's fixed expenses and capital expenditures and to guarantee certain of the JV's operating leases represents potentially significant cash calls.

China Opportunity and Risk: Fitch believes the U.S.-China trade conflict represents both opportunity and risk for Sandisk. Positively, Fitch believes U.S. export controls on shipments of leading-edge semiconductor capital equipment to Chinese providers will have the practical effect of constraining China's ability to produce leading-edge memory products over at least the near to medium term. Conversely, tariffs may yet dampen global trade while retaliatory actions by China have the potential to restrict sales to customers in China, to which Sandisk has some but not significant exposure.

Limited Diversification: Sandisk's focus on NAND flash-based products limits revenue diversification and amplifies operating cyclicality. Client and consumer segments still represent nearly 90% of revenue but sales to cloud customers, which are driven by robust AI infrastructure demand, should accelerate and increase from 12% of the mix for the quarter ended Oct. 3, 2025. At the same time, Sandisk will increase the company's dependence upon hyperscalers, which are driving the vast majority of AI infrastructure spending and is a trend that is similarly impacting the company's memory and disk drive peers.

Significant Technology Risk: Technology risk will remain significant, driven by ongoing technology transitions in manufacturing flash memory. Meaningful new product introduction delays, driven by lagging technology, would result in market share losses and significantly lower profitability from average selling price reductions. Additionally, Sandisk's JV provides a risk-sharing framework that should limit the impact of technology delays and reduce capital contributions for supply additions.

Peer Analysis

Fitch assesses Sandisk as well positioned at mid-'BB' range due to its debt reduction but notes the company's industry structure, ongoing cyclicality and lower profitability relative to its competitors. As Sandisk strengthens its profitability and FCF, the company should be increasingly aligned with its JV partner, Kioxia Holdings Corp. (BB+/Stable).

Sandisk's exclusive focus on NAND-based products results in weaker diversification than its peers, including Micron Technology, Inc. (BBB/Stable) and SK hynix Inc. (BBB/Positive), which have significant exposure to DRAM markets. Meanwhile, Kioxia is also focused exclusively on NAND- based products.

From a financial profile perspective, Micron's significant target liquidity, which supports one year of capital spending and higher mid-cycle profit margins, positions it ahead of Sandisk. The same applies to SK hynix, although all three NAND-flash suppliers are able to invest through the cycle.

Fitch views Sandisk as slightly weaker positioned than Seagate Technology Holdings plc (BB+/Positive), which competes directly with Western Digital Corp. in disk drive storage solutions. and in Fitch's view, benefits from less cyclical operating results.

Fitch's Key Rating-Case Assumptions

Strong bit demand and moderately higher prices drive robust revenue growth through calendar 2026;

Slowing but still positive revenue growth in fiscal 2027 and a moderate correction in fiscal 2028;

Supply constraints exiting the recent downturn supports gross profit margin above recent highs in fiscal years 2026-2027, followed by contraction in fiscal 2028;

Capital intensity remains uneven but in the low- to mid-single-digit range;

No additional financing through the rating horizon and cash builds to support cyclicality.

Recovery Analysis

Fitch believes category 1 recovery ratings are appropriate for Sandisk's first-lien senior secured debt despite our expectations for continued meaningful cyclicality, given comparatively low levels of fully-drawn first-lien debt and two notches up from the 'BB' IDR to 'BBB-'/'RR1'.

RATING SENSITIVITIES

Factors that Could, Individually or Collectively, Lead to Negative Rating Action/Downgrade

Deterioration of financial performance of JV or majority partner, requiring structurally higher JV capital contributions;

Sustained gross profit margins in the mid-20% or break-even FCF margins through the cycle;

--(CFO-capex)/debt below 10% or EBITDA leverage above 3.5x sustained through the cycle.

Factors that Could, Individually or Collectively, Lead to Positive Rating Action/Upgrade

Gross profit margins in the high 30% area translating into mid-single-digit FCF margins sustained through the cycle;

Structurally reduced cyclicality from substantial revenue diversification or share gains or meaningful industry consolidation;

--(CFO-capex)/debt in the mid-teens or EBITDA leverage below 3.0x sustained through the cycle.

Liquidity and Debt Structure

Fitch believes liquidity is adequate pro forma for the separation and supported by $1.4 billion of balance sheet cash and an undrawn five-year $1.5 billion first-lien senior secured revolving credit facility. Fitch's forecast for mid-cycle annual FCF of $250 million-$500 million will cover investments in the JV and minimal term loan B amortization.

Issuer Profile

Sandisk Corp. is a leading provider of storage technologies and solutions, including enterprise solid-state drives (SSD) and retail for cloud, client and retail markets, and the second largest NAND flash memory producer by virtue of its JV with Kioxia Holdings Corp.

REFERENCES FOR SUBSTANTIALLY MATERIAL SOURCE CITED AS KEY DRIVER OF RATING

The principal sources of information used in the analysis are described in the Applicable Criteria.

MACROECONOMIC ASSUMPTIONS AND SECTOR FORECASTS

Click here to access Fitch's latest quarterly Global Corporates Sector Forecasts Monitor data file which aggregates key data points used in our credit analysis. Fitch's macroeconomic forecasts, commodity price assumptions, default rate forecasts, sector key performance indicators and sector-level forecasts are among the data items included.

ESG Considerations

The highest level of ESG credit relevance is a score of '3', unless otherwise disclosed in this section. A score of '3' means ESG issues are credit-neutral or have only a minimal credit impact on the entity, either due to their nature or the way in which they are being managed by the entity. Fitch's ESG Relevance Scores are not inputs in the rating process; they are an observation on the relevance and materiality of ESG factors in the rating decision. For more information on Fitch's ESG Relevance Scores, visit https://www.fitchratings.com/topics/esg/products#esg-relevance-scores.

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