Free Intrinsic Value Calculator

Understanding Intrinsic Value with Benjamin Graham’s Formula

The Benjamin Graham intrinsic value calculator is designed to help investors estimate the true worth of a growth stock using the renowned valuation approach of the father of value investing. By leveraging a straightforward formula, this stock valuation calculator enables you to move beyond guesswork and make informed decisions backed by fundamental analysis. Whether you are assessing a single company or building a portfolio, the intrinsic value of stock calculator provides a clear benchmark for identifying undervalued opportunities.

What Intrinsic Value Represents

Intrinsic value is the fundamental worth of an asset, such as a company’s stock, based on its underlying financial metrics rather than market sentiment. Benjamin Graham first articulated this concept in his 1934 work Security Analysis, advocating for a valuation method rooted in a company’s earnings, assets, and growth prospects. Modern financial analysts and value investors continue to rely on Graham’s framework to differentiate between market price and true economic value, making it a cornerstone of value investing.

The Ben Graham Intrinsic Value Formula

Graham originally proposed a simple model to compute intrinsic value ($V$):

$$V = \text{EPS} \times (8.5 + 2g)$$

where:

• $\text{EPS}$ = earnings per share over the trailing twelve months (company net income divided by total shares outstanding).
• $8.5$ = the price‑to‑earnings (P/E) ratio assigned to a non‑growth stock with an expected growth rate of 0%.
• $g$ = the company’s anticipated annual growth rate for the next 7–10 years.

To account for changing economic conditions, Graham later revised the formula by incorporating a risk‑free interest rate factor:

$$V = \text{EPS} \times (8.5 + 2g) \times \frac{4.4}{Y}$$

In this revision, $4.4$ represents the risk‑free return on U.S. corporate bonds in 1962, and $Y$ is the current yield on AAA‑rated corporate bonds. This adjustment makes the intrinsic value more responsive to prevailing interest rates, improving its applicability across different market environments.

How to Use the Online Intrinsic Value Calculator

The Graham number calculator (often used interchangeably with this model) simplifies the valuation process. To calculate the intrinsic value of a stock:

1. Enter the earnings per share (EPS) – use the most recent twelve months’ net income divided by the number of outstanding shares.
2. Input the expected long‑term growth rate – this should reflect the company’s projected annual earnings growth over the next 7 to 10 years.
3. Supply the current AAA corporate bond yield – as of recent data, this yield is approximately 4.22% (check financial news for the latest figure).
4. Provide the current market price of the share.

The calculator applies the revised Ben Graham formula to output the intrinsic value per share. It also computes the margin of safety, indicating the cushion between intrinsic value and market price.

Margin of Safety

The margin of safety is the percentage difference that protects investors from overpaying and potential losses. It is calculated as:

$$\text{Margin of Safety} = \frac{V - \text{CMP}}{V} \times 100\%$$

where $\text{CMP}$ is the current market price. A margin between 20% and 50% is generally recommended, though your personal risk tolerance should guide the final decision. This metric allows you to buy with confidence when the market price is substantially below the estimated intrinsic value.

Worked Example

Consider a hypothetical firm, ABC Corp., with the following data:

• EPS = $23
• Annual growth rate = 10%
• Current AAA bond yield = 3.7%

Applying the revised formula:

$$\begin{aligned} V &= 23 \times (8.5 + 2 \times 10) \times \frac{4.4}{3.7} \\ &= 23 \times 28.5 \times 1.18919 \\ &\approx \$779.51 \end{aligned}$$

If ABC Corp. shares are trading at $500, the margin of safety is:

$$\frac{779.51 - 500}{779.51} \times 100\% \approx 35.86\%$$

This indicates the stock is significantly undervalued, making it a potential candidate for purchase according to value‑oriented strategies.

Selecting Stocks with Intrinsic Value

Once the intrinsic value is determined, compare it with the current market price. When the market price lies below the intrinsic value, the stock may be undervalued and worth buying for long‑term holding. Conversely, an overvalued stock (market price above intrinsic value) suggests waiting for a more favorable entry point. This disciplined, data‑driven approach helps investors build robust portfolios and avoid speculative pitfalls, staying true to Benjamin Graham’s principles of value investing.