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Estimating the Discount Rate
of a Publicly-traded Stock

November 2024

A discount rate in a business valuation reflects the valuator’s judgment for the return that a prudent investor would require to adequately compensate him for alternative investment opportunities, and for the particular business and financial risks associated with an investment in the subject company.  Furthermore, as stated in “Kroll’s Valuation Handbook - U.S. Guide to Cost of Capital,” the discount rate is always an expectational or forward-looking concept.  While past performance of an investment and other historical information can be a good guide, and is often used to estimate the required rate of return, the expectations of future events are the factors that actually determine the discount rate. 

When choosing guideline public companies in the market approach to valuing a business, it is often useful to calculate the discount rate of the prospective guideline companies to see if they are reasonably comparable.  An unusually high or low discount rate would prompt further analysis to see why the discount rate deviated from the norm. 

The discount rate for a publicly-traded stock can be estimated by inverting the company’s P/E (price to earnings) ratio and then adding projected long-term growth in earnings.  For example, Emerson Electric’s (ticker “EMR”) P/E ratio (12 months trailing) as of November 15, 2024 was 47.97 and estimated 3- to 5-year annual growth in earnings per year was 10.54%.  The discount rate is calculated as 12.62% [(1 ÷ 47.97) + 0.1054]. 




Relevant Court Cases

  • Magarik v. Kraus USA, Inc., Supreme Court of Appeals of the State of New York, 2024 NY Slip Op 04964, decided October 9, 2024

  • Fasi v. Fasi, Intermediate Court of Appeals of the State of Hawaii, FC-D No. 17-1-6358, filed October 31, 2024



Recent Business Valuation Articles

  • “Investment Valuation of High Growth Firms: Practical Case Analysis,” by Yulia A. Lukina, dated November 4, 2024

  • “A Unified Framework for Value and Momentum,” by Jacob Boudoukh, Tobias Moskowitz, Matthew Richardson and Lei Xie, posted November 2024



Recent Engagements

  • Valuation of the voting and non-voting common stock of a real estate investment company on a minority interest basis for gift tax reporting purposes.

  • Valuation of the non-voting common stock of a niche chemical products firm on a minority interest basis for stock option issuance and purchase/sale purposes.

  • Valuation of limited partnership interests of an investment holding partnership on a minority interest basis for gift tax reporting purposes.

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