You read books, don't you? You can use the Benjamin Graham formula for calculating intrinsic value. For fast growing companies, if you can estimate the growth rate. Whatever the outcome, it will be higher than a P/E of 10.6. https://en.wikipedia.org/wiki/Benjamin_Graham_formula Did you also read the part in that article where it says? In The Intelligent Investor, Graham was careful to include a footnote that this formula was not being recommended for use by investors — rather, it was to model the expected results of other growth formulas popular at the time. Readers who continued on in the chapter would have found Graham stating "Warning: This material is supplied for illustrative purposes only, and because of the inescapable necessity of security analysis to project the future growth rate for most companies studied. Let the reader not be mislead into thinking that such projections have any high degree of reliability, or, conversely, that future prices can be counted on to behave accordingly as the prophecies are realized, surpassed, or disappointed Read the book before you start talking about Benjamin Graham or value investing.