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At close · Thu, Oct 8, 2026
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Home›ETFs & Funds›Fund Industry›TMX VettaFi discusses market concentration risks in br…

TMX VettaFi discusses market concentration risks in broad equity benchmarks

The webinar said the Magnificent Seven make up about 35% of the S&P 500 and have a combined market cap above $20 trillion.

ETF Trends covered a recent TMX VettaFi webcast focused on rising market concentration risk inside broad equity benchmarks.

During the session, TMX VettaFi research and distribution leaders said 43% of attendees viewed market concentration as the biggest risk to investor portfolios in the current environment, and they argued nonmarket-cap-weighted approaches can help restore diversification.

The webcast speakers pointed to how concentration has reached historic levels, noting the Magnificent Seven account for roughly 35% of the S&P 500 and together carry a market cap exceeding $20 trillion.

They also compared that scale to other markets, saying the Magnificent Seven total market cap is larger than every national stock market outside the U.S. combined.

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