calculate the standard deviation for each stock

What does a high standard deviation mean?
An asset's standard deviation tells you how much its particular and average returns vary. You can quickly calculate or look up the standard deviation of different assets. A high standard deviation can indicate the asset's returns will be more volatile.
What is the difference between standard deviation and variance?
The formula for standard deviation is the square root of the sum of squared differences from the mean divided by the size of the data set. Variance also measures dispersion of data from the mean. The formula for variance is the sum of squared differences from the mean divided by the size of the data set.
How is standard deviation calculated?
The standard deviation is calculated as the square root of variance by determining each data point's deviation relative to the mean. If the data points are further from the mean, there is a higher deviation within the data set; thus, the more spread out the data, the higher the standard deviation.
How does standard deviation measure risk in the stock market?
When using standard deviation to measure risk in the stock market, the underlying assumption is that the majority of price activity follows the pattern of a normal distribution. In a normal distribution, individual values fall within one standard deviation of the mean, above or below, 68% of the time.

How to calculate a stocks expected return variance and standard deviation using probabilities

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A triple A rated firm has a default probability of 0 0002 in any given year What are Assuming that X and Y are independent, compute both the variance and What is the expected value and standard deviation of the rate of return (over the Denote by RA, RB, and RC the return on the stocks A, B, and C respectively

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PDF	Exercise Sheet 3 Exercise 31 The following prices are observed for Exercise 3 6 Given the following variance-covariance matrix for three securities, calculate the standard deviation of a portfolio with proportional investments in the

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PDF	CHAPTER 8: INDEX MODELS The standard deviation of each individual stock is given by: 2/1 i 2 2 M d Rewriting the SCL equation in terms of total return (r) rather than excess return (R ):

PDF	3 Basics of Portfolio Theory expected return of a stock is more difficult to find However The standard deviation of the returns of the portfolio is a measure of the uncertainty in the expected