Why Those Computer Storage Stocks Dropped — Then Bounced Back
Seagate and Western Digital ticked up before the market opened on October 5, 2026, after analysts said fears about Toshiba were overdone. Yahoo Finance
That small bounce came after a big drop on Friday, October 2. Seagate closed down 11% and Western Digital closed down 7%. Yahoo Finance Barron's put it more simply as a 10% drop for both stocks after a report that Toshiba plans to double its capacity for AI data-center drives. Barron's
The drop, then the bounce
The fall was even steeper during the day. In early trading Friday, Seagate fell 16% and Western Digital fell 10%. Before the open, the signals had pointed to an 8% drop for Western Digital and a 10% drop for Seagate. Seeking Alpha
The trigger was a Nikkei Asia report that Toshiba aims to boost its hard-disk-drive supply. Seeking Alpha
What Toshiba actually said
What Toshiba itself announced was narrower and spread over time. Its Philippines factory marked its 30th anniversary and its first shipment from an expanded line for nearline HDDs. Those are the big hard drives used in data centers. Toshiba said it aims to nearly double yearly production capacity by FY2027 compared with FY2025. Toshiba
That goal sits next to an older technology goal of selling nearline drives that hold more than 30TB of data. Toshiba Both stocks had climbed fast before the fall. Seagate was up roughly 200% and Western Digital was up roughly 140%. Investopedia
The broader context here is timing versus real supply. A FY2027 goal is not extra drives today. It is a building plan, like announcing a bigger bakery before any extra bread is baked. Drives still need testing by customers and steady factory output. Usable storage can lag announced capacity for months.
Looking at what this means for prices, traders acted as if more future drives must push prices down. That is a strong guess. If big cloud buyers keep buying, slow additions can be absorbed. If buying pauses, prices can feel pressure. Toshiba gave the end point. It did not give the pace.
In my view, Friday looked more like a crowded trade snapping back than a rethink based on confirmed supply. The drops were large. The new fact was a multi-year plan. That mismatch is what analysts flagged on October 5, which helps explain the early calm.
