NEW YORK, Jan 2, 2026, 19:41 ET — After-hours
- Western Digital closed up 8.96% at $187.70 and extended gains in after-hours trading.
- Other AI-linked hardware names also rose, including Micron and Seagate.
- Traders are watching next week’s U.S. labor data and the next round of company updates later this month.
Western Digital Corp shares surged on Friday and were still higher in after-hours trading, extending a sharp rally in data-storage stocks to start 2026. 1
The move matters because investors are rotating back into the “AI infrastructure” trade — the suppliers of hardware used to build and run data centers — after year-end volatility and a brief pullback in some high-flying names. 2
It also comes as the broader U.S. market stabilized on the first session of the year, with chip stocks leading gains and a key semiconductor index rising 4%, a tailwind for storage and memory names that often trade in the same risk-on basket. 2
Western Digital finished the regular session at $187.70, up 8.96% on the day, and was up about 0.6% in after-hours trading at around $188.8. 1
Peers moved in tandem. Micron Technology was up about 10.5% and Seagate Technology gained about 4.4% in late trading, according to market data.
A market note published by Nasdaq said investors were reacting to AI-driven data-center build-outs and tighter conditions in parts of the memory supply chain, helping lift the group beyond company-specific headlines. 3
Western Digital is a major supplier of hard-disk drives used by cloud and enterprise customers. Those “nearline” drives — large-capacity disks designed for data centers — are closely watched as a lower-cost way to store the growing volumes of data generated by AI systems.
The company has also reshaped itself recently. A filing shows Western Digital completed the separation of its Flash business in February 2025, leaving it more focused on HDD-based storage devices and solutions. 4
On the macro side, Charles Schwab’s head of trading and derivatives strategy Joe Mazzola said the market is seeing a “buy the dip, sell the rip” mentality as investors trade around short-term swings in AI-linked stocks. 2
That trading pattern is likely to keep attention on whether Friday’s surge reflects sustained demand expectations — or just early-year repositioning after a choppy end to December.
Next week’s labor-market data will be a key near-term test for rate expectations, after Federal Reserve officials previously signaled they wanted more clarity on jobs before moving further on cuts, Reuters reported. 2
For Western Digital specifically, investors are also looking ahead to its next quarterly results later this month, with a focus on cloud customer demand, pricing and shipment trends for high-capacity drives, and management’s read on data-center spending. 5
