SanDisk Stock Drops Nearly 30%: Can NBM Contracts Smooth Out the NAND Cycle?
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Sandisk has dropped nearly 30% over the past month on fears that AI infrastructure spending may not last; yet Summit Research argues inference-driven NAND demand is accelerating, and NBM long-term contracts extend profit visibility to 2030 — the key variable in whether Sandisk can break free of the storage cycle.
Why did the stock fall nearly 30% in a month?
The Philadelphia Semiconductor Index fell for eight straight sessions through October 16 — the longest losing streak since 2006. Sandisk dropped nearly 30% in the sell-off.
The core fear: AI infrastructure capex may not be sustainable. Morgan Stanley estimates global data-center investment will approach $3 trillion over the next two years, but hyperscaler operating cash flow can cover only about half; the rest must come from external financing.
This means → if borrowing costs keep rising, cloud operators may have to cut procurement — and memory chips are first in line. AI-related debt credit spreads sit at roughly 115 basis points, well above the 78 bp average for comparable investment-grade bonds. The Fed is expected to raise rates further next year; September inflation already hit 3.7%.
Is AI capex actually cooling off?
TSMC beat third-quarter expectations and guided fourth-quarter above consensus; ASML raised its 2026 growth outlook. Both hard data points suggest AI capex is not slowing quickly in the near term.
In plain terms = the market fears "they can't afford to keep spending," but the companies that actually build chips and sell equipment are still seeing orders grow. The two signals contradict each other — for now.
Broadcom CEO Hock Tan also warned that profitability prospects for frontier-AI model developers remain uncertain. This reflects an open question: even if capex doesn't slow, can the buyers ultimately earn it back?
Where is the new NAND demand coming from?
Marvell estimates that inference already accounts for roughly 60% of data-center infrastructure volume. Workloads are shifting from training to large-scale inference.
This means → inference workloads repeatedly read large volumes of cached data, creating sustained, ongoing NAND demand rather than one-time build-out demand.
Summit Research notes that agentic AI — applications that let AI autonomously complete multi-step tasks — will further drive incremental demand for KV cache (key-value cache, temporary storage for intermediate inference results) and NAND.
Can Sandisk's technology roadmap support share gains?
Current products run on BiCS8 technology. The upcoming BiCS9 2Tb QLC architecture raises write bandwidth by 150% and read bandwidth by 75%, with per-watt bandwidth gains of 85% and 30% respectively.
Sandisk began sampling BiCS10 332-layer 1Tb TLC NAND to customers in August — 59% higher memory density and 38% better interface efficiency than BiCS8. The next-gen BiCS10 2Tb QLC will deliver 60% more density, 100% higher read/write bandwidth, and 75% better read/write efficiency.
In plain terms = each generation packs more data into the same chip area, runs faster, and uses less power. Management projects per-wafer bit growth at a 27% CAGR — that is Sandisk's hard card for winning data-center orders.
Why are NBM contracts the "cycle buffer"?
Sandisk has signed eight NBM (New Business Model) customers on contracts spanning one to five years, averaging four years. Contract floor prices alone lock in $93.9 billion in total contract value and $91.1 billion in remaining performance obligations.
These contracts are expected to cover 50% of Sandisk's FY2027 bit demand, rising to two-thirds by FY2028. At floor prices they support 80% non-GAAP gross margin, with earnings visibility extending to 2030.
This means → even if NAND market prices swing as violently as they have in the past, more than half of Sandisk's shipments are backstopped by long-term deals — directly addressing the "too cyclical" criticism that has long weighed on storage stocks. Micron is rapidly expanding similar strategic customer agreements, confirming an industry-wide shift toward multi-year purchase commitments.
What near-term risks should investors watch?
Consumer weakness is the most immediate headwind: global smartphone shipments fell 22% in the September quarter — the worst on record. PC shipment forecasts also face medium-term downward pressure.
Sandisk is shifting its product mix toward high-end edge storage, which may partly offset consumer-market drag. Apple's foldable iPhone Duo, priced at $1,999–$3,199, has still drawn heavy pre-orders — evidence of resilience at the premium end.
Summit Research cut its Sandisk price target from $2,200 to $2,000 to reflect higher benchmark Treasury yields, but left revenue and earnings forecasts unchanged. Ahead of the FY Q1 report on October 29, NBM contract growth and management's forward guidance on NAND pricing sustainability will be the key checkpoints for whether Sandisk can truly transcend the storage cycle.
市场有风险，内容仅供研究参考，不构成投资建议。