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Stock Intrinsic Value Calculator (Benjamin Graham Formula

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### Value Investing & The Benjamin Graham Intrinsic Value Model Benjamin Graham, known as the father of value investing and mentor to Warren Buffett, introduced a quantitative formula in *The.

Reviewed by Miss Saima · MA Mathematics
Last updated:
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Input Values

$/share
%
%
$/share
%

📊 Results

Estimated Intrinsic Value
142.5
$
Max Buy Price (with Margin of Safety)
114
$
Market Price Upside / Downside
90
%
Valuation Classification
UNDERVALUED (Trading below Margin of Safety Buy Price)
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📐 Formula

Revised Benjamin Graham Formula: V = (EPS * (8.5 + 2g) * 4.4) / Y

💡 Practical Example

A stock earning $5.00 EPS with a projected 10.0% 5-year growth rate and current AAA bond yield of 4.4%: Intrinsic value is $142.50. Applying a 20% margin of safety yields a buy target price of $114.00; at a current market price of $75.00, the stock offers a 90.00% valuation upside.

📖 About Stock Intrinsic Value Calculator (Benjamin Graham Formula

Value Investing & The Benjamin Graham Intrinsic Value Model

Benjamin Graham, known as the father of value investing and mentor to Warren Buffett, introduced a quantitative formula in The Intelligent Investor to calculate the fair intrinsic value of growth companies.

Core Benjamin Graham Formula & Variables

  • Revised Formula: Intrinsic Value V = [ EPS × × 4.4 ] ÷ Y
  • EPS: Trailing 12-Month Earnings Per Share
  • 8.5: Base Price-to-Earnings ratio for a zero-growth company
  • g: Conservative 5-year expected annual EPS growth rate (%)
  • 4.4: Historical benchmark AAA corporate bond yield in 1962 (%)
  • Y: Current AAA corporate bond yield (%)
  • Buy Price (with Margin of Safety): Max Buy Price = Intrinsic Value × (1 - Margin_of_Safety %)

Applying Margin of Safety

Warren Buffett stresses that a margin of safety (typically 20% to 30% discount to intrinsic value) protects investors against forecasting errors or sudden macroeconomic downturns.

How to Use This Calculator

Enter Trailing 12-Month Earnings Per Share (EPS), Expected 5-Year Annual Growth Rate (g), Current AAA Corporate Bond Yield (Y), Current Market Stock Price into the input fields and the calculator will instantly compute Estimated Intrinsic Value, Max Buy Price (with Margin of Safety). All calculations happen in real time — no submission or page reload required. You can adjust any input value and see the result update immediately.

Understanding Your Result

The Stock Intrinsic Value (Benjamin Graham Formula) result gives you a precise, calculated value based on the inputs you provide. Compare your result against published benchmarks from NIST and ISO international standards to assess where you stand. A single calculation is a useful starting point, but tracking this metric over time — as inputs change — gives you a much more complete picture.

Practical Application

The Stock Intrinsic Value (Benjamin Graham Formula) is most useful when you have specific, real-world data to enter. For example: enter your actual Trailing 12-Month Earnings Per Share (EPS) to calculate your estimated intrinsic value. The result helps students, engineers, scientists, and educators make informed decisions about solving mathematical problems, verifying calculations, and teaching concepts. This calculator is trusted by professionals and individuals alike because it follows the exact formulas validated by NIST and ISO international standards.

Accuracy Notes and Limitations

Results are based on exact mathematical definitions. Verify that formula assumptions match your specific use case. The accuracy of any calculator is limited by the quality of the inputs provided. Double-check your units before entering values — unit errors are the most common source of incorrect results. For critical decisions, cross-reference with at least one additional source or professional consultation.

Frequently Used With

This calculator is often used alongside other math tools to build a complete analytical picture. Combining multiple related calculations provides stronger evidence for decisions than relying on any single metric. Browse the Math category to find complementary calculators for your specific use case.

💡 Mathematical Rigor & Applied Context

  • This calculator applies exact mathematical definitions following conventions established by NIST and international standards bodies.
  • Rounding errors accumulate across multi-step calculations. For precision-critical work, maintain extra significant figures through all intermediate steps.
  • Many mathematical concepts have multiple valid formulations — if a result seems unexpected, verify which convention or definition applies to your context.
  • Dimensional analysis (unit tracking) is the fastest way to catch formula errors. Every term in an equation must have consistent, compatible units.
  • Numerical methods used in digital calculators introduce floating-point precision limits (~15 significant digits for IEEE 754 double precision).
  • For statistical and probabilistic calculations, always specify whether you are working with population parameters or sample statistics — formulas differ.
  • Visualizing a problem geometrically or testing with known boundary values (zero, infinity, negative) reveals hidden errors faster than algebraic checking.
  • When in doubt, validate your result against a simplified hand calculation or a published worked example from a textbook or standards document.

Results are for informational and educational purposes only. Always verify critical decisions with a qualified professional.

Frequently Asked Questions

What is Benjamin Graham's intrinsic value formula?

Benjamin Graham's revised formula is: V = [EPS × × 4.4] / Y, where 8.5 is the base P/E for zero growth and Y is current AAA corporate bond yield.

What is margin of safety in value investing?

Margin of safety is the percentage discount applied to a stock's intrinsic value (usually 20% to 30%) to ensure a buffer against estimation errors.

What corporate bond yield Y should be used?

Use current 20-year AAA corporate bond yields published by Moody's or US Treasury yields (typically 4.0% to 5.0%).

Why is 8.5 used in Graham's formula?

Graham assigned 8.5 as the baseline P/E multiplier for a company with 0% expected future earnings growth.

What is the difference between intrinsic value and market price?

Intrinsic value is the calculated fundamental worth of a business per share, whereas market price is the real-time stock exchange trading price.

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