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Seagate CEO's Warning Sends Storage Stocks Tumbling

Seagate Technology (STX) shares fell sharply after CEO Dave Mosley issued a warning about weakening storage demand at the JPMorgan conference. The impact spread to Micron (MU) and the broader storage sector.

May 21, 2026
2 min read
Source: TheStreet
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Shares of Seagate Technology (STX) tumbled on Monday after CEO Dave Mosley made a surprising remark at the JPMorgan Global Technology, Media and Communications Conference, triggering a sell-off across the storage sector, including Micron Technology (MU).

Details of the Warning

During a Q&A session at the conference, Mosley was asked about demand outlook for storage devices. The CEO's response was seen as a "warning," indicating that demand for hard disk drives could weaken in the second half of the year due to slowing data center spending. Mosley did not provide specific numbers, but the market reacted strongly.

Market Reaction

Seagate's stock fell over 8% in afternoon trading, while Micron (MU) dropped about 3%, reflecting fears that weak demand could extend to NAND and DRAM memory. Other storage companies like Western Digital also declined.

Broader Context

The warning comes after a period of optimism in the storage sector, with Seagate and Micron shares rallying in recent months on AI-driven demand. Mosley's comment raised questions about the sustainability of that demand.

What This Means for Investors

This swift move highlights the market's sensitivity to any negative signals from top executives. Investors should watch upcoming earnings reports from Seagate and Micron for a clearer picture of actual demand.

Frequently Asked Questions

Seagate's stock fell after CEO Dave Mosley warned of weakening storage demand in the second half of the year.

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This article was rewritten in Wrqti's editorial style based on information from the original source above. Content is informational only — not investment advice.