Today: 18 July 2026
AI stocks eye $41 billion tech-fund shift as memory costs hit

AI stocks eye $41 billion tech-fund shift as memory costs hit

NEW YORK, June 27, 2026, 07:56 (EDT)

  • U.S. cash markets are closed over the weekend. Nasdaq lists its normal hours as Monday to Friday, 9:30 a.m. to 4 p.m. ET. Markets will also be shut on July 3 for Independence Day.
  • The Nasdaq fell 4.6% this week and the S&P 500 dropped 2%. The Dow finished up 0.6% and the Russell 2000 rose 1%.
  • Investors pulled almost $20 billion from technology sector funds in the week ended June 24. That followed $21.46 billion of inflows the week before.
  • Micron Technology said it has $22 billion in customer deals for memory chips, but investors were focused again on buyer costs by Friday.

AI stocks finished the week mixed. Demand numbers were solid, but share prices lagged.

Tech funds lost almost $20 billion in outflows for the week ending June 24, reversing $21.46 billion in inflows the previous week, according to LSEG Lipper data via Reuters. That’s a swing of about $41 billion in just one week, before Friday’s big drop in chip stocks.

Tech led the drop this week, with the Nasdaq off 4.6% and the S&P 500 down 2%. The Dow was up 0.6% and small caps gained. The split shows investors sold off AI and tech, but most of the rest of the market stayed steady.

Chip stocks hit hard as the Philadelphia semiconductor index closed down 5.3% Friday, bringing its loss for the week to 7.9%. That’s the steepest weekly drop since early April. David Stubbs, chief investment strategist at AlphaCore Wealth Advisory, told Reuters that concerns over “profitability and the capex story” are still a problem. Reuters

Micron Technology broke out the Q3 numbers for the bulls. Cloud memory and data center revenue came in at $25.29 billion, accounting for 61% of total sales, up from $4.92 billion last year, according to the company. Micron forecasted Q4 revenue at $50 billion, plus or minus $1 billion. CEO Sanjay Mehrotra called memory a “strategic value” in the AI era and said Micron continues to invest at “record levels.” Micron Technology

Investors care because what a supplier books as revenue can end up as a cost for someone else. Reuters said Apple bumped up iPad and MacBook prices after paying more for memory and storage. “Micron’s gains were ‘coming out of somebody else’s hide,’” said Carol Schleif, chief investment officer at BMO Family Office. Reuters

Funding was the second pressure point. Oracle , CoreWeave and SoftBank Group (TYO:9984) slipped after The New York Times reported OpenAI may not go public until 2027, Barron’s said. OpenAI hasn’t set a timeline, the company said in a June 9 statement cited by The Straits Times, adding “it may be a while.” Barron’s

Kioxia Holdings dropped 12% in Tokyo on Friday, part of a wider hit to AI-linked stocks after the OpenAI news. CFO Yoshihiko Kawamura told reporters the chipmaker wants to list American depositary shares “around that time” early next financial year. Smartkarma’s Douglas Kim said that points to “highly confident” guidance for the next 9 to 12 months. Reuters

The upcoming week is packed with macro events and shortened by the holiday. The Bureau of Labor Statistics will publish the June jobs report July 2 at 8:30 a.m. ET. U.S. markets shut down July 3 for Independence Day. Economists in a Reuters poll predicted 110,000 jobs for June.

AI-linked stocks are catching rate risk. Julia Hermann, global market strategist at New York Life Investment Management, told Reuters recent tech gains were mostly in “memory-related equities.” She questioned if higher rates could put that in danger. Reuters

Michał Rogucki is a senior markets reporter at TS2.tech, specializing in stocks, technology and macroeconomic developments. A graduate of Humboldt University of Berlin, he previously worked in investment research and market analysis before transitioning to financial journalism. He covers the trends and events that matter most to investors worldwide.

Stock Market Today

  • US Chip Shares Slide as China’s Kimi K3 AI Launch Stirs Industry Concerns
    July 17, 2026, 8:24 PM EDT. Chinese firm Moonshot has unveiled Kimi K3, a 2.8 trillion-parameter AI model competing with Anthropic's Claude Fable and OpenAI's GPT-5.6, raising fresh questions about the United States' edge in AI. The Philadelphia Semiconductor Index, which tracks major chipmakers including Nvidia, AMD and Broadcom, slumped 12.5% this week, marking its steepest fall in 15 months, though it remains 60% higher for the year. Chinese AI stocks also fell, with Hong Kong-listed Zhipu and MiniMax tumbling 28% and 16%. The launch has prompted investors to revisit the durability of the AI rally amid intensifying competition and tightening margins. Kimi K3's operational costs are $3 per million input tokens, undercutting more expensive U.S. alternatives and heightening industry disruption. Observers note activity in AI compute derivatives and futures markets, pointing to escalating competition for AI sector supremacy.
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