Summary
Seagate Technology's upbeat revenue forecast sparked a late-session surge in storage stocks, as investors took the guidance as evidence that enterprise spending on artificial intelligence (AI) infrastructure remains robust. The reaction lifted multiple firms in the storage and memory supply chain, while broader market sentiment showed mixed signals earlier in the trading day.
Market reaction
In extended trading, Seagate shares jumped 16%. Western Digital rose 10%, Micron Technology climbed 3% and SanDisk advanced 4%. The combined move added roughly $60 billion to the market value of those four storage companies. Traders pushed Nasdaq futures up 0.2% after Seagate released its guidance, suggesting expectations for a partial rebound in technology shares in the next session.
Seagate guidance and executive commentary
Seagate projected fiscal fourth-quarter revenue of $3.45 billion, plus or minus $100 million, exceeding the $3.16 billion analysts had been expecting according to data compiled by LSEG. On the company's post-earnings conference call, Chief Executive Dave Mosley highlighted that AI is amplifying demand across existing applications such as video - where large cloud providers are integrating AI into platforms to increase user engagement and monetize through new video creation - which in turn drives storage needs.
Supply dynamics and memory pricing
Executives at Seagate and at Western Digital have said their capacity is fully allocated and sold out through calendar 2026. At the same time, a rise in memory prices has accompanied the surge in storage demand, as power-hungry data centers consume significant volumes of high-bandwidth memory to process and store large data sets. The resulting shortage of memory chips has left companies scrambling for hardware solutions that support AI workloads, benefiting firms that produce physical hard drives.
Broader market context
Earlier in the trading session, the Nasdaq fell almost 1% amid investor concern about the pace of AI adoption after a report said OpenAI had fallen short of its targets for new users and revenue in recent months. That apprehension contrasted with the late-day rally in storage names, which traders interpreted as a sign that enterprise AI spending can sustain equipment demand even if some adoption metrics lag expectations.
Positioning ahead
Seagate had already seen its shares more than double year to date ahead of the report. The stronger guidance and the accompanying sector moves reinforce investor focus on companies that supply capacity for AI model training and deployment. The dynamics described by company executives - sustained allocations, rising memory costs and data-center consumption of high-bandwidth memory - frame the near-term backdrop for storage and memory suppliers.
Conclusion
The late-session strength in storage stocks following Seagate's guidance underscores investor confidence that enterprise AI investments will continue to underpin demand for data-storage equipment, even as the broader tech market processes mixed signals about AI adoption and revenue trajectories.