Why Is Western Digital (WDC) Stock Down 10.22% Today, Oct 2? Toshiba Expansion Adds Pressure to the HDD Market
Western Digital fell after reports that Toshiba plans a major nearline HDD capacity expansion aimed at materially increasing market share. The prospect of higher future supply challenges the tight industry backdrop that has supported HDD pricing power and margins tied to AI data-center demand. While the additional capacity is not immediate, the announcement increases perceived competitive pressure and can weigh on storage-sector sentiment and relative valuations in the near term.
AI Insight · NCSKWDC2USD/USDTAI Insight
▼ Bearish
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Western Digital (WDC) fell 10.22% to $415.29 on October 2, 2026, after a report said rival Toshiba plans a major expansion of AI-data-center hard-disk-drive capacity. This article reviews the one approved catalyst, risks and the key technical levels for WDC.