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how calculate beta of a stock

by Ruthe Crona MD Published 3 years ago Updated 2 years ago
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Calculate Beta of a Portfolio

Stock Value Portfolio share Stock beta Weighted beta
Apple Inc. $40,000 0.30 1.36 0.408
Tesla Motors $25,000 0.20 1.95 0.390
General Electric $20,000 0.18 1.23 0.221
Pfizer Inc. $50,000 0.32 0.582 0.186
May 7 2022

Beta could be calculated by first dividing the security's standard deviation of returns by the benchmark's standard deviation of returns. The resulting value is multiplied by the correlation of the security's returns and the benchmark's returns.

Full Answer

What factors determine the beta of a stock?

Beta is determined by the cyclicality of a firm's revenues. This cyclicality is magnified by the firm's operating and financial leverage. (1) Revenues. The cyclicality of a firm's sales is an important factor in determining beta. In general, stock prices will rise when the economy expands and will fall when the economy contracts.

What is a good beta value for a stock?

  • Market value: $9.1 billion
  • Dividend yield: N/A
  • Forward P/E ratio: 13.4
  • Analysts' ratings: 6 Strong Buy, 3 Buy, 0 Hold, 1 Sell, 0 Strong Sell
  • Analysts' consensus recommendation: 1.60 (Buy)

How is the beta of a stock calculated?

Beta Formula

  • Examples. ...
  • Calculate Beta by Correlation Formula. ...
  • Calculate Beta Manually. ...
  • Calculation of Beta for the stock profile. ...
  • Beta Measurement and its Relation with Market. ...
  • Uses of Beta Formula. ...
  • Beta Calculator
  • Beta Formula in Excel (With Excel Template) Here we will do the same example of the Beta formula in Excel. ...
  • Recommended Articles. ...

What is the process of calculating asset Beta?

Asset beta is a measure of the relative volatility of an investment without regard to the effects of debt. You can calculate asset beta by adjusting the investment’s levered beta using its debt-to-equity ratio and its tax rate. Asset beta is a way to compare the volatilities of two investments.

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How do you find the beta formula?

Beta can be calculated by dividing the asset's standard deviation of returns by the market's standard deviation. The result is then multiplied by the correlation of the security's return and the market's return.

What is the beta of a stock?

Beta is a way of measuring a stock's volatility compared with the overall market's volatility. The market as a whole has a beta of 1. Stocks with a value greater than 1 are more volatile than the market (meaning they will generally go up more than the market goes up, and go down more than the market goes down).

How do you calculate beta of a stock using CAPM?

CAPM Beta Calculation in ExcelStep 1 – Download the Stock Prices & Index Data for the past 3 years. ... Step 2 – Sort the Dates & Adjusted Closing Prices. ... Step 3 – Prepare a single sheet of Stock Prices Data & Index Data.Step 4 – Calculate the Fractional Daily Return.Step 5 – Calculate Beta – Three Methods.

How do you calculate beta of a stock in Excel?

To calculate beta in Excel:Download historical security prices for the asset whose beta you want to measure.Download historical security prices for the comparison benchmark.Calculate the percent change period to period for both the asset and the benchmark. ... Find the variance of the benchmark using =VAR.More items...

What does a beta of 1.5 mean?

Roughly speaking, a security with a beta of 1.5, will have move, on average, 1.5 times the market return. [More precisely, that stock's excess return (over and above a short-term money market rate) is expected to move 1.5 times the market excess return).]

What does a beta of 0.8 mean?

If the stock is more volatile than the market, its beta will be more than 1, and if it is less volatile than the market, its beta will be less than 1. For example, a stock with a beta of 0.8 would be expected to return 80% as much as the overall market.

How do you find the beta and alpha of a stock?

Alpha = R – Rf – beta (Rm-Rf) R represents the portfolio return. Rf represents the risk-free rate of return. Beta represents the systematic risk of a portfolio. Rm represents the market return, per a benchmark.

How do you find the beta of a stock in NSE?

To calculate the beta value of a stock, a spreadsheet program is useful for calculating the covariance of the stock and index returns, then dividing that by the variance of the index. If a stock returned 8% last year and the index returned 5%, a rough estimate of beta is: 8 / 5 = 1.6.

What is beta in the CAPM?

Beta is the standard CAPM measure of systematic risk. It gauges the tendency of the return of a security to move in parallel with the return of the stock market as a whole. One way to think of beta is as a gauge of a security's volatility relative to the market's volatility.

How do you calculate beta of a portfolio?

Portfolio Beta formulaAdd up the value (number of shares x share price) of each stock you own and your entire portfolio.Based on these values, determine how much you have of each stock as a percentage of the overall portfolio.Take the percentage figures and multiply them with each stock's beta value.More items...•

How is beta calculated online?

The formula of beta is as follows:Beta = Covariance (rs, rm) / Variance (rm)Covariance = ∑ (xi – x̄) (yi – ȳ) / (n – 1)Variance = ∑ (xi – x̄)2 / (n – 1)

What is a beta value?

Definition: Beta is a numeric value that measures the fluctuations of a stock to changes in the overall stock market. Description: Beta measures the responsiveness of a stock's price to changes in the overall stock market.

How to calculate beta of a stock?

Here is a straightforward formula for calculating the Beta Coefficient of a Stock: 1 Obtain the stock’s historical share price data. 2 Obtain historical values of a market index, e.g., S&P 500. 3 Convert the share price values into daily return values using the following formula: return = (closing share price − opening share price)/opening share price. 4 Convert historical stock market index values in a similar way. 5 Align the share return data with index return such that there is a 1-on-1 correspondence between them. For share price return, there should be a corresponding index return. 6 Using the SLOPE function in a financial calculator to find the slope between both arrays of data and the resultant figure is Beta.

What does beta mean in stocks?

Beta can give you an estimate of the stock’s risk and some idea of market volatility. Ideally, the Beta will tell you the difference between a stock’s risk and the risk of an entire index market.

What is the beta coefficient?

Generally, analysts regard the Beta Coefficient as a measure of systematic or “general market” risk. Analysts often use the mathematical symbol β to represent the Beta in calculations. To explain, systematic is the level of risk or volatility of equity in the entire market or index.

Why do analysts use the beta coefficient?

Analysts examine the Beta Coefficient, or Beta of stock, because the Beta measures risk and volatility. Specifically, the Beta can give you an estimate of the stock’s risk and some idea of market volatility. Ideally, the Beta will tell you the difference between a stock’s risk and the risk of an entire index market.

Why is beta a limited tool?

Hence, the Beta is a limited tool because it only measures some risks associated with individual stocks or indexes. However, a rough estimate of risk is better than no estimate of risk.

What does a value of 5 mean?

A value of 1 means it moved with the market, a value of 2 means it moved up and down with the market but twice as much, and a value of .5 means it moved up and down half as much as the market did. Strategic Beta for Funds & ETFs.

Can you use beta in stock analysis?

In the final analysis, the Beta is only one of many stock analysis tools you can use. In fact, some analysts and investors never use the Beta. On the other hand, there are many analysts who swear by the Beta. Hence using the Beta is a matter of choice.

What is beta in stock market?

Stock Beta is one of the statistical tools that quantify the volatility in the prices of a security or stock with reference to the market as a whole or any other benchmark used for comparing the performance of the security. It is actually a component of Capital Asset Pricing Model (CAPM)

What does it mean when the beta of a stock is negative?

The Stock Beta can have three types of values: Beta < 0: If the Beta is negative, then this implies an inverse relationship between the stock and the underlying market or the benchmark in comparison. Both stock and the market or the benchmark will move in the opposite direction. Beta = 0: If the Beta is equal to zero, ...

What does a beta of 1 mean?

Beta of 1 implies that the volatility of the stock is exactly the same as that of the underlying market or the index in both qualitative and quantitative terms. Beta of greater than 1 implies that the stock is more volatile than the underlying market or index. A negative Beta is possible but highly unlikely.

What does it mean when the beta is greater than zero?

Beta > 0: If the Beta is greater than zero, then there is a strong direct relationship between the stock and the underlying market or the benchmark. Both stock and the market or the benchmark will move in the same direction. Some further insight is as follows:

What does it mean when the beta is 0?

Beta = 0: If the Beta is equal to zero, then this implies that there is no relation between the movement of the returns of the stock and the market or the benchmark, and hence both are too dissimilar to have any common pattern in price movements . Beta > 0: If the Beta is greater than zero, then there is a strong direct relationship between ...

Is a negative beta of gold a good thing?

A negative Beta is possible but highly unlikely. Most investors believe that gold and stock based on gold tend to perform better when the market dives. Whereas a Beta of zero is possible in the case of government bonds acting as risk-free securities providing a low yield to the investors.

What is beta in stock market?

Learn more... Beta is the volatility or risk of a particular stock relative to the volatility of the entire stock market. Beta is an indicator of how risky a particular stock is, and it is used to evaluate its expected rate of return.

How to interpret beta?

Know how to interpret beta. Beta is the risk, relative to the stock market as a whole, an investor assumes by owning a particular stock. That's why you need to compare the returns of a single stock against the returns of an index. The index is the benchmark against which the stock is judged. The risk of an index is fixed at 1. A beta of lower than 1 means that the stock is less risky than the index to which it's being compared. A beta of higher than 1 means the stock is more risky than the index to which it's being compared.

What does it mean when the beta is lower than 1?

The risk of an index is fixed at 1. A beta of lower than 1 means that the stock is less risky than the index to which it's being compared. A beta of higher than 1 means the stock is more risky than the index to which it's being compared.

What is beta analysis?

Beta analyzes a stock's volatility over a set period of time, without regard to whether the market was on an upswing or downswing. As with other stock fundamentals, the past performance it analyzes is not a guarantee of how the stock will perform in the future. Thanks!

What does it mean when the beta is negative?

Usually the rates of return are figured over several months. Either or both of these values may be negative, meaning that investing in the stock or the market (index) as a whole would mean a loss during the period. If only one of the two rates is negative, the beta will be negative.

How to calculate the return of a stock?

Begin calculating returns for the stock market index. 1 Since return is a calculation over time, you won't put anything in your first cell; leave it blank. You need at least two data points to calculate returns, which is why you'll start on the second cell of your index-returns column. 2 What you're doing is subtracting the more recent value from the older value and then dividing the result by the older value. This just gives you the percent of loss or gain for that period. 3 Your equation for the returns column might look something like this: = (B4-B3)/B3

How many data points do you need to calculate returns?

You need at least two data points to calculate returns, which is why you'll start on the second cell of your index-returns column. What you're doing is subtracting the more recent value from the older value and then dividing the result by the older value.

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