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Your S&P 500 Fund Isn't as Diversified as You Think — MarketVault
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Your S&P 500 Fund Isn't as Diversified as You Think

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Most investors are doubling up without knowing it — and their S&P 500 fund isn't built the way they think. If you own an S&P 500 fund alongside a total US market fund, you're holding roughly 80% of the same positions with nearly identical weighting. That's not diversification — that's redundancy. In this video you'll learn: → How market-cap weighting actually works and why a handful of companies dominate your returns → Why your S&P 500 and total market funds overlap more than you think → What SPIVA and Morningstar data say about active funds vs. index funds over the long run → Which fund types — international, small-cap — actually add real diversification This is essential watching if you're building a portfolio on Vanguard, Fidelity, or iShares and assuming variety means safety. What does your current fund mix look like — are you more concentrated than you realized? S&P 500 index fund diversification market cap weighted index funds explained S&P 500 vs total market fund overlap index funds vs actively managed funds how S&P 500 funds actually work Vanguard Fidelity iShares index fund comparison small cap international fund diversification SPIVA index fund performance data #IndexFunds #Wealthquora #SP500 #PassiveInvesting #ETF



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Added 7 Jul 2026