The world of one trade — AI
Investor portfolios have become a one-trade bet. AI buildout concentration risk is now a market stability story.

Why it matters
Financial Times reports that institutional portfolios have become dangerously concentrated in AI infrastructure and frontier-lab bets, raising questions about portfolio diversification, tech sector valuation risk, and whether the AI capex cycle can sustain current equity weightings. This is a macro financial story about concentration risk in a key asset class.
The key facts
4 to knowInvestor portfolios showing 'alarming' reliance on single bet: AI buildout
Concentration risk in technology sector tied to uncertain AI technology outcomes
Financial Times analysis of portfolio composition and sector weighting
Published October 10, 2026
The story so far
Earlier coverage of this storyline
- There is only one tradeFinancial Times Technology
- This story
Go to the source
Financial Times Technologyft.com
Publisher excerpt: Investor portfolios have become alarmingly reliant on the fortunes of just one bet on the build-out of an uncertain technology