# Explain how to calculate the standard deviation for each stock in your portfolio using the monthly close stock price.

This is a chance to show your colleagues how you calculate the expected

It is useful to calculate the standard deviation for stocks within your portfolio. This allows you compare and measure the volatility of various investments. The standard deviation measures how narrow or wide a range is relative to its mean value. It is used often as an indicator of risk. A stock’s standard deviation is a measure of how volatile it prices, which can make them riskier investments.

To calculate the monthly close stock price’s standard deviation, you would need: 1) a list of all closing prices over a given time period (monthly); 2) their respective means; 3) their squared differences from those means. This is the formula to calculate standard deviation.
SD = √(∑(x – ̅x)^2 / n). Where x represents individual stock close prices, ̅x represents its average value and n represents total number of stocks.

To calculate difference values, first gather the data points closing during the chosen period. Next subtract each point from its mean. Then square each difference result to get rid off negative signs if applicable and sum them up together – this gives us our numerator part in SD equation above. After that divide this cumulative result with total number of stocks collected – now we have everything needed to calculate SD!

Finally use calculated figures in SD equation above by substituting into it previously computed variables such as average and summation results; once done you should be able to find out your desired measurement i-e Stock’s Monthly Close Standard Deviation!

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