This "Diversified" Vanguard ETF Is at Its Most Concentrated Point Since 1965. Here's What That Means for VOO Investors.

Key Points The S&P 500's top 10 holdings comprise nearly 40% of its value. That's higher than it was during the dot-com era. The last time the S&P 500 was this concentrated led to a decade of underwhelming returns. 10 stocks we like better than Vanguard S&P 500 ETF › Many investors view the Vanguard 500 ETF (NYSEMKT:VOO) , which tracks the S&P 500 Index , as a diversified investment because it holds shares of 500 of the largest publicly traded companies. However, it's not as diversified as it seems. Its top 10 holdings comprise almost 40% of its total value. That's its highest concentration since 1965 and well above the dot-com peak of 26%. Here's what this heavy concentration means for investors in the Vanguard S&P 500 ETF . Missed AI’s "Act 1"?