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Beta Calculator

Measure a stock's volatility and systemic risk relative to the broader market index.

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Calculation Parameters

Specify your inputs below.

Covariance (Asset & Market)

Variance of Market Returns

Calculated Result

Stock Beta (β) 1.18

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Expert Tip

A beta of 1.0 means the stock moves in tandem with the market. Above 1.0 indicates higher volatility, and below 1.0 indicates lower.

How this Calculator Works

This calculator computes stock Beta, which measures the sensitivity of a stock's returns relative to market returns. A Beta of 1.0 means the stock moves with the market; above 1.0 indicates higher volatility, and below 1.0 indicates lower volatility. Investors use Beta to calculate the required rate of return in CAPM models.

Formula & Methodology

Beta = Covariance(Stock Returns, Market Returns) / Variance(Market Returns) - Covariance(Stock Returns, Market Returns) is the measure of how stock returns and market returns move together. - Variance(Market Returns) is the volatility measure of the market index returns.

Step-by-Step Calculation Example

Here is a step-by-step example showing how the calculations are performed:

Over a period, the covariance between a stock's returns and the market returns is 0.0015, and the variance of the market returns is 0.0012. 1. Divide covariance by market variance: 0.0015 / 0.0012 = 1.25. Result: The stock's Beta is 1.25, indicating it is 25% more volatile than the market.

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Detailed Insights & Expert Guide

ℹ️ About this Calculation

This equity research and valuation calculator evaluates corporate fundamentals, stock price multiples, cost of capital, dividend discount models, and shareholder return metrics based on SEC financial reporting and Wall Street equity analysis standards.

Variable Glossary

Input

Equity Inputs

Share price, earnings per share (EPS), dividend amount, book value, debt/equity ratio, or systematic beta coefficient.

Parameter

Valuation Output

Price-to-Earnings (P/E), EV/EBITDA multiple, Intrinsic Value ($), WACC %, or Return on Equity (ROE %).

How to Calculate Step-by-Step

Step 1

Input current stock price, shares outstanding, or balance sheet / income statement numbers.

Step 2

Enter expected growth rate, cost of equity, or market risk premium assumptions.

Step 3

Review calculated valuation multiples, margin of safety comparison, or required rate of return.

FAQ

What is WACC and why is it crucial for equity valuation?

Weighted Average Cost of Capital (WACC) represents a company's required average return on debt and equity capital. It is used as the hurdle rate to discount future cash flows in DCF valuation models.

How does stock Beta measure systematic risk?

A stock beta of 1.0 means price volatility matches the broader market index. Beta > 1.0 indicates higher volatility, while Beta < 1.0 reflects lower systematic volatility.

Should valuation multiples be evaluated in isolation?

No. Valuation ratios (P/E, EV/EBITDA, P/B) should always be benchmarked against industry peer groups, historical trading averages, and expected earnings growth (PEG ratio).