Investors are moving to shelter portfolios from these rising concentration risks as signs emerge that the peak of AI-driven wealth has passed. Bank of America notes the 10 largest AI stocks, including Nvidia and Broadcom, now make up 41% of the total US stock market, matching the peak of the 2000 dot-com bubble. This concentration coincides with a climb in the 10-year Treasury yield, which has risen 1.27 points since February, a trend BofA associates with the end of previous major equity bubbles.
Tuesday, October 20, 2026
Story
AI Firms Capture 87% of VC Funding and Record S&P 500 Share
US Markets16 days ago
Investment into artificial intelligence has crowded out other sectors, giving the industry a dominant hold over modern capital markets. Technology stocks currently represent a larger portion of the S&P 500 than at any other point in the index's history, with AI infrastructure companies accounting for 40% of its market capitalization. In private equity, AI firms have captured 87% of all venture capital funding year-to-date, while AI-related enterprises claim 49% of all investment-grade bond issuance in 2026.
Looking for more context or analysis?
Tilt chat provides reliable, tailored insights, alerts, and automations.