The Buffett Bet
In 2007, Warren Buffett challenged the hedge fund industry: any basket of hedge funds vs the S&P 500 index fund over 10 years. Winner takes $1M for charity. The hedge fund of funds (Protégé Partners) picked five funds of funds — roughly 200 hedge funds total. The S&P 500 returned 125.8%. The hedge funds returned 36.3%. Index fund won by $640,000.
3.5×How much more the index fund returned than professional hedge fund managers
Index Funds vs Stock Picking: By the Numbers
| Index Fund (VFIAX) | Average Stock Picker | |
|---|---|---|
| Annual fee | 0.04% | 0% (but your time costs) |
| Diversification | 500 stocks instantly | Usually 5-20 stocks |
| % beating the market (10yr) | Matches market exactly | ~10-15% of professionals |
| Tax efficiency | Very low turnover | Depends on trading frequency |
| Time required | Zero — set and forget | Hours/week researching |
Fee Math: 0.04% vs 2%
$100,000 invested for 30 years at 10% before fees:
| 0.04% Fee | 2% Fee | |
|---|---|---|
| Final balance | $1,730,000 | $1,006,000 |
| Lost to fees | $15,000 | $724,000 |
A 2% fee destroys $724,000 — more than the original investment. The math is ruthless: fees compound against you the same way returns compound for you.
When Individual Stocks Make Sense
Individual stocks aren't wrong — they're just wrong for most people. They make sense when:
- You genuinely enjoy the research (it's a hobby, not a chore)
- It's a small portion of your portfolio (5-10%) — core holdings stay in index funds
- You buy and hold for years, not trade weekly (tax efficiency)
- You accept that you'll probably underperform — the research shows 85-90% of professional managers fail to beat the index over 15 years
Key Takeaways
- Index fund beat 200 hedge funds by $640K in Buffett's 10-year bet
- Only 10-15% of professionals beat the market over 10+ years
- 2% fee destroys $724K vs 0.04% fee on $100K over 30 years
- For most people: 90% index funds, 10% individual stocks if you enjoy it