Seagate and Western Digital Shares Fall as Memory Supply Outlook Shifts
Shares of Seagate Technology Holdings PLC (NASDAQ:STX) and Western Digital Corporation (NASDAQ:WDC) fell sharply in morning trading. Western Digital dropped 4.77% to $368.50, while Seagate declined 4.38% to $720.20. The pullback extended recent losses for both memory semiconductor manufacturers.
The decline followed news that ChangXin Memory Technologies plans to launch 4F-square DDR5 server modules by late 2026, increasing memory density by one-third. Arriving approximately two years ahead of Samsung's projected schedule, the development prompted investors to reassess whether tight supplies of artificial intelligence memory chips will loosen earlier than anticipated. Sentiment was further pressured by comments from Broadcom Chief Executive Hock Tan, who warned that extreme investor expectations surrounding artificial intelligence investments resemble casino gambling.
Investors will watch how upcoming hardware demand and AI infrastructure buildouts develop over the coming quarters. Western Digital remains up 97.5% year-to-date despite trading significantly below its June 2026 peak of $746.23. Future stock performance will likely depend on whether memory demand stays strong and how quickly competing memory designs reach the market.
Key points
- Western Digital Corporation (NASDAQ:WDC) fell 4.77% and Seagate Technology Holdings PLC (NASDAQ:STX) declined 4.38% in morning trading.
- ChangXin Memory Technologies announced plans for 4F-square DDR5 server modules by late 2026, boosting memory density by one-third.
- The timeline for the new memory module is about two years ahead of competitor Samsung's roadmap.
- Broadcom Chief Executive Hock Tan cautioned that unrealistic expectations are driving speculative AI investment behavior.
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Why did Western Digital and Seagate shares drop?
Shares fell after news that ChangXin Memory Technologies plans to release denser DDR5 server modules by late 2026, easing memory supply expectations, combined with cautious executive comments on AI investment sentiment.
What is ChangXin Memory Technologies releasing?
ChangXin Memory Technologies plans to launch 4F-square DDR5 server modules by late 2026, which will increase memory density by one-third roughly two years ahead of Samsung's timeline.
How much have Western Digital shares moved this year?
Western Digital is up 97.5% since the beginning of the year, though it trades about 50% below its 52-week high of $746.23 set in June 2026.