Why Sandisk (SNDK) and Western Digital (WDC) crashed 10% and what it means for bitcoin
SanDisk (SNDK) and Western Digital (WDC) fell about 10% in pre-market after both reported strong results but issued first-quarter guidance below elevated expectations, according to company statements and analyst estimates. SanDisk reported Q4 revenue of $8.97B and non-GAAP EPS of $39.25; Western Digital reported $3.75B revenue and 54.4% gross margin. The article links the selloff to shifting investor focus between AI and crypto, citing bitcoin above $64,000.
How this was made
The 30-second read
Why it matters
Traders can treat this as a guidance-led repricing event for AI storage names, while the crypto commentary is secondary and more narrative than a direct catalyst.
Market read
Guidance misses triggered a sharp pre-market selloff in two AI storage beneficiaries, reinforcing that forward outlooks matter more than headline beats.
What to watch
The article does not quantify guidance revisions versus prior quarters or backlog/contract visibility, so the magnitude of underlying demand change is unclear.
Background
The article frames the move as a post-AI-boom expectation reset, with both SanDisk and Western Digital reporting strong quarters but guiding below what investors wanted.
Ticker impact
SanDisk shares fell about 10% pre-market after its Q1 revenue and EPS outlook came in below elevated expectations despite record Q4 results.
Near-term downside bias until investors see follow-through on the next-quarter revenue/EPS trajectory.
The article attributes the pre-market 10% drop specifically to below-consensus forward outlooks, which typically dominate post-earnings positioning.
Western Digital dropped roughly 10% pre-market because its first-quarter outlook did not meet the market’s post-rally expectations after a double-beat quarter.
Volatility likely remains elevated as traders reassess whether the AI storage cycle can re-accelerate.
The text explicitly links the ~10% pre-market decline to guidance not matching expectations, after a large 12-month run.
Market effects
Signals that AI storage beneficiaries can still sell off on forward guidance, increasing sensitivity to cycle cooling.
Primarily US pre-market repricing; could spill into broader semis/storage sentiment.
Rotation narrative may influence global crypto risk appetite, though the article’s crypto link is more thematic than data-driven.
Counterpoint
The selloff may be expectation-driven rather than demand deterioration, especially with Sandisk’s large incremental buyback authorization.
Key entities
- public_companySanDisk
Reported record Q4 revenue and EPS, but guided Q1 revenue and EPS below expectations; stock fell about 10% pre-market.
- public_companyWestern Digital
Reported strong Q4 growth and margin expansion, but pre-market fell about 10% on first-quarter outlook not meeting elevated expectations.
- crypto_assetBitcoin
Mentioned as holding above $64,000; article suggests potential momentum shift toward crypto if capital rotates.


