Western Digital Stock Is Up 146% in 2026 Even After This Week’s Pullback
Western Digital (WDC) reported Q4 revenue of $3.75B, up 44%, and EPS of $3.56, exceeding estimates. Shares fell 20% due to guidance below high expectations. AI storage demand drove growth, with cloud revenue up 43%. A valuation model targets $676.19, implying 47.2% upside. Competitors Seagate and Micron showed stronger margins but similar growth trends.
How this was made

The 30-second read
Why it matters
The earnings beat was offset by guidance that failed to meet elevated expectations after a 200% YTD rally, leading to a 20% price drop.
Market read
Earnings and guidance for a large‑cap AI storage player, directly affecting its stock and sector peers.
What to watch
Potential upside from upcoming 40‑TB ePMR drive ramp and cloud customers' long‑term capacity needs.
Background
Western Digital reported Q4 2026 results with 44% revenue growth and modest FY2027 guidance.
Ticker impact
Q4 2026 earnings beat and FY2027 guidance released, showing 44% revenue growth and EPS beat.
Potential further short‑term decline if guidance is not raised; upside if next quarter beats expectations.
Revenue and EPS beat are positive, but guidance fell short of market expectations after a large run‑up, likely prompting profit‑taking.
Market effects
Highlights AI‑driven storage demand, affecting peers Seagate (STX) and Micron (MU).
U.S. tech sector may see short‑term pressure as high‑growth stocks correct.
Signals broader AI infrastructure spending trends worldwide.
Counterpoint
The sell‑off may be overdone; continued AI storage demand could drive faster ramp of 40‑TB drives.
Key entities
- companyWestern Digital
U.S.-listed data storage manufacturer (ticker WDC).




