

Testing the Magic Formula. Value Investing. And more...
16.84% is by how much my Magic Formula Fund is beating the S&P500 as of today. How do I know if my Magic Formula Fund will continue to beat the market?
In the past 13.5 months, I invested 35,961.89 following the Magic Formula method, and my fund's asset value is now (as of 8/16/2008) 36,595, representing a 1.76% return (4.69% annualized). If I had invested the same amount into an S&P 500 index fund, my asset value would have been $33,745 representing a -6.16% return (-12.15% annualized).The Magic Formula has only two inputs:
1) Return on capital -- defined as EBIT/[Net Fixed Assets + Working Capital]
2) Earnings yield -- defined as EBIT/EV
The rationale is straightforward. Buy shares in:
1) Profitable businesses (measured by return on capital)
2) Only when they're available at bargain prices (defined as a high earnings yield)
The magic formula looks for companies that have the best combination of earnings yield and return on capital, with each input weighed equally.
Magic Formula ranks the universe of about 10,000 public US and Canadian Stocks on both criteria. If an outstanding company with an expensive stock ranked, say, first for return on capital but 1,999th on earnings yield, would have the same combined ranking of 2,000 as a low return on capital company within expensively priced shares, ranking 1,999th in return on capital but first on earnings yield.
Using this approach to create a regularly updated portfolio of about 36 stocks with the highest combined rankings, Mr Greenblatt tested his formula between 1988 and 2004. The results were remarkable: with only one down year, the magic portfolio would have returned 30.8 per cent a year, against a 12.4 percent annual return for the S&P 500.
Mr Greenblatt has created a free website that ranks stocks based on his approach (www.magicformulainvesting.com).
Magic Formula is an investing methodology of Joel Greenblatt, described in detail in his WSJ best-seller book called The Little Book that Beats the Market. The Little Book is recognized as one of the best books written on value investing. I first read the Little Book about 13 months ago.