Rule #1 Investing

Sticker Price & Margin of Safety

Calculate whether purchasing a stock at its current price will enable you to earn 15% returns over 10 years.

Use analyst estimates or historical rate

Default: 2× growth rate

Rule #1 standard: 15%

Future EPS

$0.00

Future Value

$0.00

Sticker Price

$0.00

Margin of Safety

$0.00

Metric Value
Current EPS $0.00
Est. EPS Growth Rate 0%
Future P/E 0
Sticker Price $0.00
Margin of Safety (50%) $0.00

What is Sticker Price?

Sticker Price is the true value (intrinsic value) of a company based on its future earnings potential. It represents the maximum price you should pay for a stock to achieve your minimum acceptable rate of return (typically 15% for Rule #1 investors).

What is Margin of Safety?

The Margin of Safety is a discount to the Sticker Price that protects you from errors in your calculations and unforeseen circumstances. Warren Buffett recommends buying at 50% of the Sticker Price—this gives you a large margin of safety.

Rule #1 Buying Strategy

Only buy when the current stock price is at or below the Margin of Safety price. This ensures you're buying a wonderful company at an attractive price.

How the Calculation Works

  1. Future EPS: Current EPS grown at the estimated growth rate over your time horizon.
  2. Future Value: Future EPS multiplied by the future P/E ratio.
  3. Sticker Price: Future Value discounted back to today at your minimum rate of return.
  4. Margin of Safety: 50% of the Sticker Price—your maximum buy price.

Estimating Future P/E

A common rule of thumb is to use 2× the growth rate as the future P/E ratio. For example, if you expect 10% EPS growth, use a P/E of 20. However, you should also consider historical P/E ranges and industry comparisons.

Learn to Value Companies

Master valuation techniques in Phil Town's free investing workshop.

Join Free Workshop