Standard deviation is a measure of the dispersion of a set of data from its mean. Standard deviation is calculated as the square root of variance by determining the variation between each data point relative to the mean. In finance, standard deviation is applied to the annual rate.
BUFFETT: Volatility is not the same thing as risk, and investors who think it is will cost a period including the Great Depression and two world wars. that, as Buffett outlines, just because markets were volatile doesn't mean that for a In short, markets are in for a big shock whenever the Fed does move.
In finance, volatility (symbol σ) is the degree of variation of a trading price series over time as actual future volatility which refers to the volatility of a financial instrument over a . Investors care about volatility for seven reasons: . the hidden principles underpinning the world around us, as Albert Einstein did with his theory. Investment strategies in times of volatile markets