(Alphabet, Amazon, Apple, Meta, Microsoft, Nvidia, Tesla)

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Regression line

Y-AXIS : Internal Rate of Return (IRR)
A stock’s internal rate of return (IRR) is directly derived from its potential payback period (PPP). Defined as the period of time necessary to equalize the current share price with the sum of future earnings per share discounted to their present value, the PPP is basically a mathematical adjustment of the price earnings ratio (PER) to earnings growth rate. It measures a company’s profit-making capacity (or earnings potential) which basically determines the value of the company’s stock. The shorter the PPP the stronger the company’s profit-making capacity and the more attractive its stock. The IRR is the discount rate which allows the investor in a given share to potentially double their investment through the cumulation of earnings per share over the period corresponding to the PPP which has been calculated for the stock. The higher the IRR the more attractive the stock. The IRR of a stock should normally be higher than the yield of a risk-free long-term bond (such as the 10-year U.S. Treasury bond in our example), with the difference between the two rates representing the risk premium that characterizes each stock.

X-AXIS : Beta
The Beta is a measure of the risk associated with a company (a coefficient of share price volatility in our example).


Data as of November 22, 2023.
Any inflection in earnings growth rates, as indicated by revisions in quarterly earnings estimates, must be closely monitored as it immediately impacts the PPP and the IRR.

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Demonstration at