The Dirty Little Secret About Warren Buffet’s Bet With A Hedge Fund Manager

The Dirty Little Secret About Warren Buffet’s Bet With A Hedge Fund Manager

By now, you may have heard that Warren Buffet made a bet with a hedge fund manager that just ended.  The bet was pretty simple.  Put up $1 million and pick the best investment for a 10 year period (bet started on 1/1/2008).  The winner would give the $1 million to the charity of their choice.  Warren Buffet’s pick was simple- the Vanguard S&P 500 Index Fund.  The hedge fund manager went with a blend of 5 fund-of-funds (basically a group of hedge funds). The bet didn’t start great for The Oracle of Omaha, as he explained in his annual letter:

The five funds-of-funds got off to a fast start, each beating the index fund in 2008. Then the roof fell in. In every one of the nine years that followed, the funds-of-funds as a whole trailed the index fund.

The result wasn’t even close.  The S&P returned a cumulative 125.5%, while my calculations show the hedge funds earned 36.3% over the same period.  Warren Buffet practiced what he preached in many of his shareholder letters.  To avoid high-cost funds, most investors should diversify in index funds and buy and hold for the long-term.

Now, here is the dirty little secret.  Warren Buffet could have made more money for his shareholders if he had followed his own advice. It turns out over that same 10 year period Berkshire Hathaway, the company managed by Warren Buffet, also underperformed the S&P 500!  Berkshire Hathaway generated a 7.7% annualized return during the 10 year period ending December 31st 2017, while the S&P 500 earned an 8.5% annualized return during that same period.

The point of this article is not to call out Warren Buffet.  As I wrote in a previous article about challenging Warren Buffet:

There are many lessons that can be learned from this bet.  Probably the biggest one is that if you ever have the opportunity to wager $1 million with the greatest investor of all-time, you should probably pass.

The lesson for all of us to remember continues to be how hard it is to beat the market by picking great stocks or funds.  Warren Buffet, who is widely considered the best investor of all time, couldn’t do it over the last 10 years.  If he can’t, what is the chance that you or your advisor can?

Information contained herein has been obtained from sources considered reliable, but its accuracy and completeness are not guaranteed. It is not intended as the primary basis for financial planning or investment decisions and should not be construed as advice meeting the particular investment needs of any investor. This material has been prepared for information purposes only and is not a solicitation or an offer to buy any security or instrument or to participate in any trading strategy. Past performance is no guarantee of future results.

Recent Insights

Wealth Preservation Across Generations: Financial Planning Strategies

For most of our clients, multi-generational wealth transfer is a top-of-mind priority. When done well, wealth transfers create outsized impact for both heirs and charity while providing you with the peace of mind that your wishes are followed.

How We Can Achieve 100% “Strongly Agree”!

In a world where bad news seems to overwhelm us, I have some good news to report! The Charles Schwab Women Investors Survey 2025 revealed that 90% of the surveyed women felt they were on track to achieve their financial goals. Considering the many hurdles women face professionally (pay inequality, career pauses for caregiving) and financially (limited financial role models, student debt), this is remarkable progress!

The Most Powerful Questions to Ask A Financial Advisor (for High Net Worth Investors)

The relationship with your financial advisor should be one of transparency and trust. These questions are not just information-gathering tools — they are conversation starters that reveal your advisor’s thought process, values, and ability to address your unique financial goals.