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$10B Invested in VTSAX with 7% Annual Returns
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$10B Invested in VTSAX with 7% Annual Returns

Warren Buffett recommends index funds for their low costs and high returns. With over $10B invested in VTSAX, it's a popular choice. Average annual returns are around 7%.

3 min readAugust 3, 2026

Over $10 billion is invested in the Vanguard Total Stock Market Index Fund (VTSAX), with an average annual return of around 7% over the past decade. This impressive track record has made VTSAX a favorite among US investors, and its popularity continues to grow. With its low 0.04% expense ratio, it's an attractive option for those looking to minimize costs.

What's Happening Right Now

The S&P 500, which is tracked by index funds like SPDR S&P 500 ETF Trust (SPY), has seen significant growth in recent years, with a 10% increase in the past year alone. Other popular index funds, such as iShares Core S&P Total U.S. Stock Market ETF (ITOT), have also seen substantial inflows of capital. As of the latest reporting period, VTSAX has over $1.3 trillion in assets under management.

Why It Matters for US Investors

Index funds offer a unique combination of diversification, low costs, and broad market exposure, making them an attractive option for US investors. By investing in a fund like VTSAX, which tracks the CRSP US Total Market Index, investors can gain exposure to virtually the entire US stock market, including Apple (AAPL), Microsoft (MSFT), and Amazon (AMZN). This can be particularly beneficial for those who are new to investing or looking to minimize their risk.

What Analysts Are Saying

Warren Buffett, one of the most successful investors in history, has long been a proponent of index funds. In his 2016 letter to shareholders, he noted that 90% of the funds managed by professional investors fail to match the performance of the S&P 500. He recommends that investors instead opt for low-cost index funds, which can provide 7-8% annual returns over the long term. Other experts, such as John Bogle, the founder of Vanguard, have also emphasized the importance of low costs and broad diversification in investing.

Key Takeaways

  • Index funds offer low costs and broad market exposure, making them a popular choice for US investors.
  • VTSAX has over $1.3 trillion in assets under management and an average annual return of around 7%.
  • Warren Buffett recommends index funds for their low costs and high returns, citing the failure of 90% of professional investors to match the S&P 500.

Frequently Asked Questions

What is an index fund?

An index fund is a type of investment fund that tracks a specific market index, such as the S&P 500 or the CRSP US Total Market Index. By investing in an index fund, investors can gain broad exposure to the market, often at a lower cost than actively managed funds.

How do I invest in an index fund?

Investing in an index fund is relatively straightforward. Investors can purchase shares of a fund like VTSAX or SPY through a brokerage account, such as Fidelity or Vanguard. Many online brokerages also offer low-cost index funds with minimal fees.

What are the benefits of investing in an index fund?

Index funds offer a range of benefits, including low costs, broad diversification, and tax efficiency. By investing in a fund that tracks a broad market index, investors can minimize their risk and potentially earn higher returns over the long term.