AI Investments Reach 50% of S&P 500 as Experts Debate Bubble Risks
Updated
Updated · Financial Times · Sep 16
AI Investments Reach 50% of S&P 500 as Experts Debate Bubble Risks
3 articles · Updated · Financial Times · Sep 16
Summary
AI-linked investments now account for as much as half of the S&P 500’s total value, sharpening debate over whether the sector’s boom is becoming a bubble.
FT technology correspondent Tim Bradshaw examined that question in a live FT Weekend Festival discussion with Arete Research founder Richard Kramer and Blossom Capital founder Ophelia Brown.
The session, recorded on September 5, 2026, centered on whether current valuations reflect durable AI growth or leave investors exposed to a sharp reversal.
The debate underscores how AI’s market weight has turned bubble concerns from a niche tech question into a broader issue for equity investors.