Tech shares fall after OpenAI CFO admits worries about future compute bills

Summary

CNBC's Kristina Partsinevelos reports that semiconductor stocks fell after a WSJ report that OpenAI's CFO is worried about future compute bills. She notes the sector was up 40% month-to-date and needed a pullback. She also highlights that bulls point to demand still outstripping supply across the AI ecosystem, with GPU rental prices surging.

• OpenAI CFO worries about paying future compute bills caused a selloff in chip stocks.
• NVIDIA, AMD, and Broadcom each fell about 3%.
• The semiconductor sector had rallied ~40% month-to-date before this news.
• Bulls argue OpenAI has cash from a $122B funding round.
• Many infrastructure commitments are letters of intent, not take-or-pay contracts.
• CoreWeave and Oracle push back, highlighting diverse customer base and strong demand.
• GPU rental prices surged over 100% in six weeks, indicating high demand.
• Intel is hiking CPU prices; memory demand exceeds supply.