WDC.US: Post-spin HDD / AI nearline

Snapshot

Price

USD 78

Mkt cap

USD 25.0B

Revenue

USD 14.5B

Gross margin

0.32

Thesis

Western Digital is more HDD-centric after spinning flash to SanDisk. AI nearline HDD demand is the cycle swing factor.

Business

Model: HDD/systems. Flagships: nearline HDD; enterprise. Edge: capacity + CSP specs. Strategy: AI nearline share and density roadmap.

Value chain

Midstream storage hardware; upstream heads/media; downstream CSPs/OEMs. Risks: tool lead times; cloud CapEx.

Valuation

Cyclical valuation: inventory, ASP, cloud CapEx — not PE alone.

Financial trend (~24 months)

Illustrative 8Q with YoY/QoQ:

Revenue · last 8Q

Interactive chart available in the reader.

Gross margin · last 8Q

Interactive chart available in the reader.

Operations

Nearline bits and ASP drive earnings beta.

Key financials

Key financials

Item	Value	YoY	Note
FY/CY25 rev (approx)	~$14.5B	+12%	HDD/AI nearline
Mix	HDD-led post spin	—	Flash → SNDK
AI HDD demand	Strong	—	Nearline capacity
GM (approx)	~32%	+	Mix/pricing

Competition

Peers Seagate and SanDisk; HDD duopoly, flash separated.

Peer map

Peer map

Company	Share/role	Margin	Strength	Weakness
Western Digital (self)	HDD leader	~32%	Nearline AI HDD	Cycle / flash separation
Seagate	HDD peer	Mid	HAMR narrative	Same cycle
SanDisk (SNDK)	NAND spin	Volatile	Pure flash	NAND cycle

Management

Management (24m)

Management (24m)

Role	Name	Since	24m change
CEO	Irving Tan	2024	CEO transition era
CFO	Kris Sennesael	2025	Watch filings
Chair	Board Chair	—	See proxy

Stability: post-spin transition.

Outlook

Track cloud CapEx, nearline ASP, inventory, SNDK boundary.

Scenarios

Risks