Warren Buffett's Vanguard S&P 500 ETF Would Have Turned $5,000 Into $20,000+ Over a Decade

In a 2014 shareholder letter, Warren Buffett advised that an estate’s trustee allocate 90 % of cash to a low‑cost S&P 500 index fund, specifically recommending Vanguard’s S&P 500 ETF (VOO). He argued this simple approach would outperform most high‑fee managers.

Data show that over the past ten years more than 85 % of large‑cap mutual funds underperformed the S&P 500. An investment of $5,000 in Vanguard’s ETF on the first trading day after Buffett’s letter would be worth about $20,465 today, or roughly $25,270 when dividends are reinvested. Buffett’s message emphasizes that average investors who accept their limitations can achieve better long‑term results than many professional managers.