Common Stock Valuation. The fundamental concept of valuation of shares or stocks is that of present value. A study of the present value concept is a sine-qua-non for the evaluation process. Time value of money states that money today is more desirable than those in the future. Common Stock Valuation. Fundamental security analysis suggests two basic approaches to the … [Read more...] about Common Stock Valuation – Fundamental Security Analysis Suggests Two Basic Approaches