Memory Chip Stocks Soar Amid Ai-driven Market Surge
WHO:
Wall Street Journal - AMD and Anthropic have signed an AI server deal.
Yahoo Finance - SK hynix, Micron Technology, Seagate Technology, Western Digital, Sandisk, Advanced Micro Devices, Microsoft, Intel
WHAT:
Wall Street Journal - The deal is worth tens of billions of dollars, with Anthropic set to buy up to 2 gigawatts of MI450 chips from AMD starting in H1 2027. AMD will also invest $5 billion in Anthropic.
Yahoo Finance - SK hynix climbed about 9% in trading.
Yahoo Finance - Micron Technology gained roughly 7%.
Yahoo Finance - Seagate Technology rose about 8%.
Yahoo Finance - Western Digital advanced nearly 10%.
Yahoo Finance - Sandisk added about 9.5%.
Yahoo Finance - Advanced Micro Devices was up around 5.5%.
Yahoo Finance - Intel climbed about 6%.
Yahoo Finance - The Philadelphia Semiconductor Index lifted about 4%.
Yahoo Finance - The S&P 500 was up about 0.6%.
Yahoo Finance - The Nasdaq Composite gained around 1%.
Yahoo Finance - The Dow Jones Industrial Average edged up roughly 0.4%.
WHERE:
Yahoo Finance - Nasdaq (for SK hynix debut).
WHEN:
Wall Street Journal - The purchase of MI450 chips by Anthropic is scheduled to begin in H1 2027.
Yahoo Finance - SK hynix had its Nasdaq debut earlier this month.
Yahoo Finance - Intel is scheduled to release its second-quarter earnings later this week.
Yahoo Finance - Advanced Micro Devices is ahead of its Advancing AI 2026 event.
WHY:
Yahoo Finance - Investors favored memory chip makers amid expectations of strong AI-related demand.
HOW:
Yahoo Finance - The rally spread across storage companies and chip designers, indicating a broad market response to AI demand.
(UPDATED July 22, 2026 13:26 UTC)
AMD and Anthropic have entered into a significant AI server deal valued at tens of billions of dollars. As part of the agreement, Anthropic will purchase up to 2 gigawatts of MI450 chips from AMD, with the first transactions expected to start in the first half of 2027, while AMD will also invest $5 billion in Anthropic. This partnership marks a major step forward in the collaboration between the two companies in the artificial intelligence sector.
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(UPDATED July 22, 2026 10:45 UTC)
In a notable market rally, SK hynix saw a climb of about 9% following its recent Nasdaq debut, while Micron Technology and Seagate Technology gained roughly 7% and 8%, respectively. Other companies in the semiconductor sector also experienced gains, with Western Digital advancing nearly 10% and Sandisk adding about 9.5%, as investors showed strong interest in memory chip makers amid expectations of robust AI-related demand. Looking ahead, Intel is set to release its second-quarter earnings later this week, while Advanced Micro Devices is preparing for its Advancing AI 2026 event.