passive investing

AI Markets

Semiconductor Stocks Now Drive 40% of S&P 500 Gains Despite 18% Index Weight

AI chip manufacturers control 18% of the S&P 500 by weight but generated over half the index's 8% year-to-date gains, creating historic concentration risks that echo—and exceed—the dot-com peak.

7 min read ·
Markets

Mega-Cap Tech Concentration Reaches 35% of S&P 500, Raising Systemic Fragility Concerns

Cameron Dawson warns that semiconductor exposure alone has hit 18% of the index—double the dot-com peak—while passive funds now own 26% of every stock, creating cascade risk if AI valuations crack.

7 min read ·
AI Markets

AI Stocks Now 57% of S&P 500, Creating Concentration Risk Beyond Dotcom Peak

JPMorgan analysis shows AI-adjacent equities exceed half the index's weight, surpassing 2000 tech bubble levels as passive flows amplify systemic correlation risk.

7 min read ·