Graham Number Formula & Calculator
Overview: Calc-Tools Online Calculator offers a free platform for scientific calculations and math conversions, including a specialized Graham Number Calculator. This tool helps investors determine a stock's fair value using the latest earnings per share (EPS) and book value per share (BVPS). The Graham number, an intrinsic value metric developed by Benjamin Graham, indicates a stock is undervalued if traded below this number and overvalued if above it. The article explains the formula, how to use the calculator, what constitutes a good Graham number, and includes a real-life investing example. By simplifying complex calculations, Calc-Tools empowers users to make informed investment decisions efficiently.
Our advanced Graham number calculator provides a straightforward method for estimating a stock's intrinsic value based on its latest earnings per share and book value per share. This guide will explain the core concepts and practical applications. You will learn the definition of the Graham number in investment analysis and the step-by-step calculation process. We also demonstrate how to effectively use our online calculator tool. The discussion includes how to interpret the results to identify a favorable Graham number. Additionally, we will review a real-world case study of successful value investing.
Understanding the Graham Number in Investing
The Graham number is a financial metric used to approximate a stock's fair market price. It combines a company's current earnings per share with its book value per share. According to Benjamin Graham, a stock trading below this calculated number may be undervalued, while a price above it suggests overvaluation. This figure represents an estimate of the stock's intrinsic value, similar to valuations derived from discounted cash flow analysis.
It is crucial to recognize that a stock's fair value increases with growth in earnings per share. Higher EPS typically leads to greater retained earnings, thereby boosting shareholders' equity over time. This growth cycle fundamentally originates from increasing company revenues. The intrinsic value, which can be estimated without a specialized calculator, creates a benchmark for assessing whether a stock price is reasonable.
Step-by-Step Guide to Calculate the Graham Number
Now that we understand its purpose, let's examine the calculation formula in detail. The Graham number formula is mathematically simple and easy to apply. The standard equation is the square root of the product of 22.5, EPS, and BVPS.
GN = √(22.5 × EPS × BVPS)In this formula, GN stands for the Graham number, EPS represents earnings per share, and BVPS denotes book value per share.
Before applying this formula, two key conditions must be verified to ensure its validity. The stock's price-to-earnings ratio should be 15 or lower, and its price-to-book ratio should be 1.5 or lower. Alternatively, the product of the PE ratio and the PB ratio must not exceed 25.
Our scientific calculator also assists in determining the necessary per-share values if they are not readily available. Navigate to the per-share values section and input the required data. This includes the number of common outstanding shares from the income statement and the common shareholders' equity from the balance sheet. Also input the trailing twelve months net income to common stockholders. The tool will then automatically compute the EPS and BVPS for you.
Real-Life Application: A Practical Example
Let's analyze TD Synnex Corporation as a practical illustration. Prior to its Q2 2020 earnings report, the company had a PE ratio of 9.2 and a PB ratio of 1.3. The available trailing twelve months data showed an EPS of $10.47 and a BVPS of $75.82. Since both the PE and PB ratios met the required thresholds, the Graham number formula is applicable for fair value estimation.
Calculating the square root of 22.5 multiplied by 10.47 and 75.82 gives a Graham number of approximately 133.65.
√(22.5 × 10.47 × 75.82) ≈ 133.65Our calculator indicates the fair value was $133.65, while the market price was $101.80, suggesting a potential undervaluation and an upside of 31%. Following a corporate spin-off of its subsidiary Concentrix, the investment generated significant returns for shareholders.
Limitations of the Graham Number Valuation Method
The Graham number has certain shortcomings that investors should consider. It does not incorporate critical metrics like free cash flow or EBITDA margin, and it only applies to companies with positive net income. When these conditions are not met, alternative valuation methods are recommended.
For companies with positive EBITDA or significant depreciation, the EBITDA multiple method may be suitable. The EV to sales ratio is a better tool for firms that are not yet generating positive operating income or cash flows. If a stock price remains significantly above the Graham number, these alternatives can provide additional perspective.
Frequently Asked Questions
How do I calculate the Graham number for a stock?
First, determine the earnings per share by dividing net income by outstanding shares. Next, calculate the book value per share by dividing common shareholders' equity by outstanding shares. Finally, take the square root of the product of 22.5, BVPS, and EPS. Using our free calculator simplifies this entire process.
What is considered a good Graham number?
A good Graham number is one that is higher than the current market price, indicating potential undervaluation. Remember, the formula's use requires meeting its predefined ratio conditions regarding PE and PB.
Can there be a bad Graham number?
Value investing focuses on acquiring stocks at a fair price to reduce risk during market downturns. The calculator uses EPS and book value to suggest a price. Therefore, the number itself isn't wrong, but the acquisition price can be unfavorable.
Is the Graham number still relevant today?
Benjamin Graham created this concept during a period of higher interest rates and stricter valuations. While it is now harder to find companies meeting the exact ratio thresholds, as our example shows, such opportunities still exist in the market.