Timing note: Sandisk’s release and conference call are scheduled for today, Wednesday, August 5, 2026, not tomorrow. The call begins at 1:30 p.m. Pacific / 4:30 p.m. Eastern. The company will also hold an Investor Day on August 13.
This is less a conventional earnings report than a test of whether Sandisk’s extraordinary fiscal third-quarter economics represent a durable reset or an exceptionally favorable point in the NAND cycle.
Management’s fiscal fourth-quarter guidance already calls for another large sequential increase in revenue and earnings, with gross margin reaching roughly 80%. But the stock’s extreme volatility shows that investors remain unconvinced those economics can last. Consequently, simply beating quarterly guidance may not be enough. The most important information will be:
The upcoming Investor Day may limit the amount of long-term detail management provides on the call, but investors will still expect enough fiscal 2027 commentary to bridge the two events.
| Metric | 4Q26 guidance | 3Q26 actual | Sequential change at midpoint |
|---|---|---|---|
| Revenue | $7.75B–$8.25B | $5.95B | +34% |
| Non-GAAP gross margin | 79%–81% | 78.4% | +160 bps |
| Non-GAAP operating expenses | $480M–$500M | $448M | +9% |
| Interest and other income | $10M–$30M | Approximately breakeven | Positive |
| Tax expense | $775M–$875M | $492M | Higher with earnings |
| Non-GAAP EPS | $30–$33 | $23.41 | +35% |
| Diluted shares | Approximately 158M | 157M | Roughly flat |
A July 6 FactSet snapshot cited by Barron’s put consensus EPS at $33.80, already above management’s $33 high end. That estimate may have moved since then, but it illustrates the setup: the formal guidance range probably understates the actual bar.
Management also set a very high precedent last quarter:
After that magnitude of upside, investors are unlikely to reward a small beat.
Fiscal third-quarter non-GAAP gross margin rose from 51.1% to 78.4% sequentially, and management guided to 79%–81% for the fourth quarter. Those are remarkable margins for a historically cyclical memory business.
The third-quarter filing shows how strongly pricing contributed:
That is excellent near-term earnings leverage, but it also explains investor skepticism. Much of the profit expansion came from price and mix rather than broad unit growth.
A fourth-quarter margin above 81% would be positive, but the stock will likely react more to the next-quarter and fiscal 2027 margin outlook.
Sandisk’s “new business models,” or NBMs, are central to management’s case that the company should no longer be valued as a traditional NAND-cycle exposure.
At the last report:
The quarter should include a substantially higher RPO figure because the prior $41.6 billion excluded two agreements signed after the fiscal third-quarter close.
This disclosure may be the single most important factor for the stock. A strong increase would support the argument that current earnings are becoming contractually durable. Limited progress would reinforce the view that the model remains exposed to spot pricing.
There is also an execution risk: Sandisk must deliver substantial volumes over multiple years. Supply shortfalls, yield problems or specification issues could result in penalties or reduced commitments, while customer guarantees may not fully compensate Sandisk for every potential breach.
Datacenter was the highlight of fiscal Q3:
Stargate matters because it broadens Sandisk’s enterprise portfolio from performance-oriented TLC drives into high-capacity QLC storage. Management has said the product had been qualifying with major customers for more than a year.
Investors should distinguish between broad AI commentary and measurable evidence: datacenter revenue, shipment growth, qualifications, committed capacity and customer contracts.
Management said Q4 revenue growth would come from both higher bit shipments and higher prices. The split is important.
Sandisk deliberately reduced Q3 bit shipments by a high-teens percentage sequentially while building inventory for Stargate and the new customer agreements. Inventories ended Q3 at $2.24 billion, and days in inventory increased to 158.
A healthy fourth-quarter outcome would show that inventory was converted into high-value revenue as planned.
A quarter driven primarily by another pricing increase would still produce strong earnings, but it would provide less evidence of sustainable volume growth. A combination of higher bits, higher ASPs and lower inventory days would be much higher quality.
Sandisk generated $2.96 billion of adjusted free cash flow in Q3, equivalent to a 49.7% margin, and ended the quarter with:
After quarter-end, Sandisk paid approximately $972 million for its strategic investment in Nanya, which also supports long-term DRAM sourcing for enterprise SSDs.
The authorization does not require the company to buy stock, so investors should focus on actual execution.
The original Q4 EPS guidance assumed approximately 158 million diluted shares, suggesting it may not have embedded a large buyback benefit. Material repurchases could therefore provide incremental EPS upside, although the underlying operating result remains more important.
SNDK closed at approximately $1,427.66 on August 4.
The shares have been exceptionally volatile:
This is a mixed setup. The fall from the June peak has reduced expectations, but the stock still reflects a major increase in Sandisk’s earnings power compared with the beginning of the prior quarter.
The likely implication is that:
A bullish report would include most of the following:
That combination would support management’s claim that Sandisk has achieved both a structural AI-driven demand increase and a less cyclical commercial model.
The downside scenario is not necessarily a Q4 miss. It could instead be:
The biggest fundamental risk is that investors conclude current profitability is the peak of an unusually favorable NAND pricing cycle rather than a durable earnings base.
Sandisk should deliver another exceptionally strong quarter; the real debate is what happens after it.
The formal Q4 guidance is probably not the operative bar following the prior quarter’s enormous beat and subsequent upward estimate revisions. The report will be judged primarily on whether management can substantiate three claims:
The cleanest positive signal would be a strong Q4 beat paired with materially higher RPO, increasing fiscal 2027 contract coverage and a forward gross-margin outlook that remains near current levels. Conversely, a strong quarter with cautious fiscal 2027 commentary would likely reinforce concerns that earnings are near a cyclical peak.
Research based on Sandisk’s fiscal Q3 earnings call and Form 10-Q, its July 9 earnings-date announcement, recent market news and stock-price data.