How to Calculate the Intrinsic Value of a Stock like Benjamin Graham (Step by Step)

How to Calculate the Intrinsic Value of a Stock like Benjamin Graham (Step by Step)

Navigating the world of stock investing can often feel like walking through a maze. With countless numbers and complex jargon, having a reliable compass is crucial. This is where the wisdom of Benjamin Graham, one of the most significant investment gurus of all time, can help guide you. Understanding the actual worth of a company beyond its current market price is crucial for successful investing. This article will demystify how to compute this ‘real worth’—the intrinsic value—using a formula developed by Graham himself. This step-by-step guide will help you understand whether a stock is undervalued or overvalued based on fundamental business metrics. Let’s take a journey together into the realm of value investing.

Benjamin Graham, the father of value investing, developed a method to calculate a stock’s intrinsic value based on the business’s underlying fundamentals. His methodology aims to identify undervalued stocks with a high safety margin for purchase. This method is often referred to as the Benjamin Graham Formula.

Margin of Safety

Benjamin Graham’s “Margin of Safety” principle is a crucial tenet of his investment philosophy. Simply put, it refers to the difference between a stock’s intrinsic value and market price. In other words, the buffer protects an investor from overpaying for stock or errors in their intrinsic value calculation.

Graham strongly advocated for purchasing securities at a price significantly lower than their intrinsic value. He recommended investing in stocks when the market price is at a significant discount—usually at least a third below—the calculated intrinsic value. This difference is the “margin of safety.”

The purpose of this approach is twofold:

  1. It cushions losses if the intrinsic value is overestimated or unforeseen adverse business developments occur.
  2. It potentially increases the investment’s rate of return if the stock is bought at a discount and subsequently rises to its actual value.

The margin of safety principle is grounded in the belief that investing is as much about preserving capital and minimizing loss as it is about generating returns. It represents a measure of risk management and acknowledges that every investment carries some degree of uncertainty and risk.

In essence, the larger the margin of safety, the lower the risk and the greater the profit potential. This principle is central to value investing and has been embraced by many successful investors, including Warren Buffett.

Here’s a step-by-step guide to calculating the intrinsic value of a stock as per Graham’s formula:

Step 1

Collect Required Information First; you need two specific pieces of information about a company. These are the company’s earnings per share (EPS) and growth rate.

  • Earnings per share (EPS): This is a company’s net income divided by the number of outstanding shares of its common stock. EPS represents the portion of a company’s profit allocated to each outstanding share of common stock. It’s a key measure of profitability for a company. You can find this information in the company’s earnings report or any stock quote website.
  • Growth Rate (g): The expected rate at which the company’s earnings will grow. This rate can be challenging to predict, but it’s often estimated based on the historical growth rate, industry growth expectations, and economic outlook.

Step 2

Apply the Graham Formula. Benjamin Graham proposed the following formula to calculate the intrinsic value:

Value = EPS x (8.5 + 2g)

In this formula, 8.5 is the P/E base for a no-growth company, and ‘g’ is the expected annual growth rate.

The constant two is a conservative measure to account for future uncertainties.

Step 3

Interpret the Results Once you have the intrinsic value, compare it to the stock’s current market price.

  • If the intrinsic value is higher than the market price, the stock might be undervalued and potentially be a good buy.
  • If the intrinsic value is lower than the market price, the stock might be overvalued, which could be an excellent time to sell.
  • The stock is reasonably priced if the intrinsic value is equal to the market price.

It’s important to note that while the Graham formula provides a good starting point, it should not be the only tool used when evaluating a stock. The formula assumes that the growth rate will continue indefinitely, which is a somewhat unrealistic assumption. Therefore, a well-rounded approach would incorporate this method and other financial metrics and qualitative factors to make informed investment decisions.

Also, due to the speculative nature of the growth rate, it’s always a good practice to calculate the intrinsic value with several possible growth rates to create a range of possible intrinsic values. That way, you’ll be prepared for various scenarios.

Benjamin Graham Intrinsic Value Formula

The Benjamin Graham Formula for calculating the intrinsic value of a stock is as follows:

Value = EPS x (8.5 + 2g)


  • Value is the intrinsic value of the stock.
  • EPS is the Earnings Per Share.
  • 8.5 is the P/E base for a no-growth company.
  • g is the expected annual growth rate.
  • 2 is an added constant to account for future uncertainties.

The resulting value is compared to the current market price of the stock to determine if the stock is overvalued, undervalued, or fairly valued.

This formula, however, should be used with caution. It was proposed by Graham quite a while ago, and the current market situation may require adjustments to the formula or a combination of this approach with other valuation methods to get a more accurate intrinsic value.

Key Takeaways

  • Understanding the Intrinsic Value: The intrinsic value is the perceived worth of a company’s stock based on fundamental analysis, not the current market price. It offers an insight into what the stock should be valued at, indicating over or under-valuation.
  • Crucial Components: The Benjamin Graham Formula hinges on two crucial elements – Earnings Per Share (EPS) and projected annual growth rate (g). These are used to estimate the actual value of a stock.
  • The Graham Formula: The intrinsic value calculation follows the formula – Value = EPS x (8.5 + 2g). Here, 8.5 represents the price-to-earnings ratio for a zero-growth firm, while ‘2g’ accounts for the expected growth.
  • Application and Interpretation: Once the intrinsic value is derived, it’s juxtaposed against the stock’s market price. If the intrinsic value is higher, the stock is potentially undervalued; if it’s lower, it might be overpriced.
  • A Part of the Puzzle: The Benjamin Graham Formula is a valuable tool but shouldn’t be the sole determinant in investment decisions. A holistic stock evaluation should consider other financial metrics and qualitative factors.


In the realm of investing, having a comprehensive understanding of a company’s true worth is crucial. The intrinsic value of a stock, as calculated by the Benjamin Graham Formula, provides a yardstick to evaluate whether a stock is priced correctly in the market. This formula, incorporating EPS and a projected growth rate, enables investors to discern potential investment opportunities. While the Graham Formula is potent in a value investor’s toolkit, it should be used with other analytical techniques for a well-rounded and effective investment strategy. Remember, it’s always necessary to consider multiple perspectives and potential future scenarios when investing in the stock market.