Revenue
$8.965B
+51% quarter over quarter
Strong← Earnings Research Lab
Featured Earnings · SNDK
Sandisk Q4 FY2026 Earnings Checkup
Strong operating results met a negative after-hours response after a sharp pre-report advance.
Last updated after the August 5, 2026 close
SNDK · Q4 FY2026 · Results Released
NewCurrent Checkup
Operating result: strong. Outlook: strong. Initial market response: negative. Current type: strong operations, weak price response.
Adjusted EPS
$39.25
Prior company guide: $30–$33
Above GuideData Center Revenue
$2.977B
+103% quarter over quarter
StrongGross Margin
84.6%
+6.2 percentage points sequentially
ImprovedNext-Quarter Revenue Guide
$10.3–$10.8B
Company guidance, not consensus
HigherInitial Stock Reaction
-7.6%
After hours; next-day close pending
NegativeThe Core Tension
Revenue, adjusted EPS, data-center revenue, and gross margin all rose sharply, but SNDK had already gained 32.9% over the five trading days before the report and fell 7.6% after hours. The market is testing whether next-quarter revenue can clear an already elevated hurdle.
Actual EPS and Stock Reaction
Actual adjusted EPS was 24.6% above the midpoint of Sandisk’s prior company guidance. This is not a market-consensus comparison.
Actual EPS vs. prior company guidance
+24.6%
$39.25 vs. $31.50 midpoint
Next Day Stock Move
Pending
The observation has not occurred.
The verified after-hours move was -7.6%. Day +1, +5, and +20 use regular-session closes and remain Pending.
Three Key Statistics
- Comparable Samples
- 1
- Pre-Report 5D
- +32.9%
- After Hours
- -7.6%
Five standalone-company reports exist, but only the latest observation is fully verified under the current price-and-expectation methodology.
Tracking Progress
- ResultsUpdated
- Next DayPending
- Day 5Pending
- Day 20Pending
Position Before Earnings
| Window | SNDK | SOXX | SNDK vs. SOXX |
|---|---|---|---|
| Prior 5 Trading Days | +32.9% | +14.1% | Outperformed 18.8 pp |
| Prior 20 Trading Days | -21.8% | -5.6% | Underperformed 16.2 pp |
Peer Reference: Does WDC Confirm the Same Trend?
| Dimension | SNDK | WDC | Meaning |
|---|---|---|---|
| Revenue Growth | +372% YoY | +44% YoY | Both reported strong growth, from different product cycles. |
| Gross Margin | 84.6% | 54.1% non-GAAP | Profitability improved, but the margins are not mechanically comparable. |
| Data Center Demand | $2.977B · +103% QoQ | Broad-based cloud demand | Both support firm AI-infrastructure storage demand. |
| Next-Quarter Outlook | $10.3–$10.8B | $4.1B midpoint | Both companies guided to continued growth. |
| Next-Day Stock Move | Pending | Pending | Regular-session confirmation has not occurred. |
| Core Business | NAND / Flash / SSD | HDD / storage infrastructure | Useful cross-check, not a like-for-like comparison. |
Together, the reports support improving data-center storage demand and profitability. SNDK is primarily NAND flash and SSD; WDC is now primarily HDD and storage infrastructure, so their economics should not be treated as interchangeable.
What the Market Focused On
Data Center Demand
$2.977B · +103% QoQ
Strong, but investors are testing durability.
NAND Pricing and Margin
84.6%
Higher pricing drove much of the improvement.
Next-Quarter Guidance
$10.3–$10.8B
Growth continues, but the market hurdle was higher.
Historical Comparability
Company StructureMedium
Pre-Report PriceLow
NAND / Flash CycleMedium
Data Center DemandMedium
Valuation and Risk AppetiteLow
Comparable history is limited because Sandisk became a standalone public company in February 2025. This report emphasizes current evidence and peer confirmation rather than a mechanical historical forecast.
Verified Data
View the complete current observation
| Report Date | Fiscal Quarter | Prior EPS Guide | Actual EPS | Above Guide Midpoint | Pre 5D | Next Day | Day 5 | Day 20 |
|---|---|---|---|---|---|---|---|---|
| Aug. 5, 2026 | Q4 FY2026 | $30–$33 | $39.25 | +24.6% | +32.9% | Pending | Pending | Pending |
Methodology, Sources, and Limits
How the figures are calculated
- Percent above the prior guide midpoint = (actual adjusted EPS − guidance midpoint) ÷ guidance midpoint × 100%.
- For an after-close report, Next Day, Day 5, and Day 20 compare the earnings-date regular close with the corresponding later regular-session close.
- Pending means the observation has not occurred or lacks a reliable closing price. It never means zero.
- Pre-separation carve-out financial statements are not treated as equivalent public-market reaction samples.
Complete sources
- [1]Sandisk — Sandisk Reports Fiscal Fourth Quarter 2026 Financial Results ↗August 5, 2026 · August 5, 2026
- [2]Sandisk Investor Relations — Sandisk Fourth Quarter Fiscal 2026 Earnings Call ↗August 5, 2026 · August 5, 2026
- [3]U.S. SEC — Sandisk filings (CIK 0002023554) ↗Current filings · August 5, 2026
- [4]Western Digital — WD Fiscal Fourth Quarter 2026 Results ↗August 5, 2026 · August 5, 2026
- [5]U.S. SEC — Western Digital Form 8-K filed August 5, 2026 ↗August 5, 2026 · August 5, 2026
- [6]S&P Global Market Intelligence via Stock Analysis — SNDK Historical Stock Price Data ↗Daily market data through August 5, 2026 · August 5, 2026
- [7]S&P Global Market Intelligence via Stock Analysis — SOXX Historical Stock Price Data ↗Daily market data through August 5, 2026 · August 5, 2026
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This page is for market information and investor education, not investment advice. SNDK has limited comparable history as a standalone public company, and historical reactions do not predict future performance.