To use the Phil Town method for calculating the fair value for a stock, you need four numbers:
- Current earnings per share (EPS)
- Estimated (future) EPS growth rate
- Estimated future price/earnings ratio (PE)
- Minimum acceptable rate of return
Keep in mind that calculating fair value works best for companies that fairly and honestly report their earnings in an easy to understand way. That little caveat excludes all financial companies. It is also best to calculate fair value on companies that have real and actual earnings. That requirement eliminates American automakers and homebuilders, and other bailout beggars! And fair value is also easier to calculate using companies with sustainable and consistent earnings, not erratic earnings such as with mining and defense companies. Let’s take McDonald’s as an example of a company with real earnings to calculate fair value.
Excluding dividends, McDonald’s trailing twelve month earnings per share were $3.96, according to the MSN Money summary. Next comes an estimate for future EPS growth rate. MSN Money averages out analyst estimates of future earnings estimates on their website, and McDonald’s is currently listed with a 12% future growth rate over the next 5 years. But Phil also recommends looking at past growth rates. According to Google Finance, (more annual data history than MSN Money) the last 4 years of earnings per share data for McDonald’s were $2.06, $2.09, $2.44 and $2.88. Those annual earnings per share results correspond to growth rates of 1.4%, 16.7%, 18%. Therefore, a 12% analyst estimate of future earnings growth seems reasonable.
To get an estimated future P/E, Phil recommends taking the lower of either the historical P/E or twice the expected growth rate. The analyst expected growth rate is 12%, which corresponds to a future P/E ratio of 24. But McDonald’s is only currently trading with a P/E ratio of 15, so it is the better estimate to use for future P/E ratios. In fact, conservative investors may want to go even lower than 15 in today’s secular bear market, and collapsing P/E ratios.
The final piece of information for determining fair value is the minimum acceptable rate of return for this investment. Phil Town recommends a default rate of 15% as the minimum return. So the four numbers that we will use to determine fair value of McDonald’s are:
- current earnings per share – $3.96
- estimated future EPS growth rate – 12%
- estimated future P/E ratio – 15 (perhaps less due to secular bear market collapsing P/E effect)
- minimum rate of return – 15%
The next step is to determine what the earnings per share will be in 10 years, based on the 12% growth rate in earnings, and starting with a base of $3.96 per share of earnings. Using either a calculator, or Excel, the earnings per share of McDonald’s in 10 years based on a 12% EPS growth rate are $12.29 per share. Assuming a future P/E of 15, McDonald’s could theoretically trade for $184.35 per share by achieving the assumed 12% growth rate over the next 10 years. Finally, to get the sticker price of McDonald’s, we know that our minimum 15% rate of return requires an approximate quadrupling of the stock price over 10 years. (Use calculator or excel to verify yourself) So all we have to do is divide the future expected stock price of $184.35 by 4 to come up with today’s theoretical sticker price of McDonald’s shares. Based on all of the above assumptions and calculations, the sticker price of McDonald’s shares today is only about $46 per share, and it is currently trading at $61.29. In fact, Phil Town also recommends a steep 50% margin of safety for new investments. In following Phil’s approach, we would not want to pay more than $23 per share for McDonald’s today, and therefore would want to look elsewhere for rule #1 stocks.
Rule #1 investing is an aggressive method for buying stocks at a steep discount. But finding those stocks is often very difficult to do. But when you do find them, it is very unlikely that you will see events such as the 2008 financial crisis and stock market decline affect your portfolio of rule #1 investments. Phil’s book is definitely worth buying!

Rule #1: The Simple Strategy for Successful Investing in Only 15 Minutes a Week! by Phil Town
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