Standard deviation, also referred to as volatility, measures the variation from average performance. ... Standard deviation is a measurement of investment volatility and is often simply referred to as “volatility”. For a given investment, standard deviation measures the performance variation from the average.
Is volatility a standard deviation?
Volatility is not always standard deviation. You can describe and measure volatility of a stock (= how much the stock tends to move) using other statistics, for example daily/weekly/monthly range or average true range. These measures have nothing to do with standard deviation.
How do you convert standard deviation to volatility?
16.1 – Calculating Volatility on Excel
- Calculate the average.
- Calculate the deviation – Subtract the average from the actual observation.
- Square and add up all deviations – this is called variance.
- Calculate the square root of variance – this is called standard deviation.
