CNBC's Daily Open on May 27, 2026 reported that the AI-fueled rally is lifting more companies into the $1 trillion market-capitalization tier, with memory chipmakers at the center of the move.

SK Hynix

  • Shares in SK Hynix jumped on Wednesday, taking the South Korean chipmaker's market capitalization above $1 trillion for the first time.
  • CNBC said the stock has skyrocketed around 250% since the start of the year, fueled by surging demand for AI chips that has helped drive South Korea's Kospi to record highs.

Micron

  • Micron Technology also joined the trillion-dollar club within the prior 24 hours, CNBC noted.
  • On Tuesday, UBS tripled its price target on Micron from $535 to $1,625 a share, sending shares 19% higher that day according to CNBC's recap (a dedicated May 26 Micron piece cited the same revision).
  • CNBC framed the rotation as investors buying CPUs and memory needed for agentic AI workloads—a segment the newsletter says was once dominated by Nvidia.

Other context in the same newsletter

The Daily Open also summarized China industrial profits, European manufacturing in China, ECB inflation guidance, Ferrari's Luce EV debut, and linked to a separate story on Trump administration officials disagreeing over Pope Leo XIV's AI warning.


Primary source: CNBC — SK Hynix, Micron join $1 trillion club: CNBC Daily Open (May 27, 2026).