KurtosisKurtosis is the a measure of the variation of stock price around its mean. It is a measure of how peaked or spiky a tickers movement around its mean is. Symbols which have more extreme movements outside of its standard range than be expected from its volatility have high Kurtosis.
The chart, will resolve out the spikes in a ticker symbols motion. It is defined as by summing the forth power of difference between the current price and the simple moving average over n-periods of time, and dividing by the number of periods, then dividing this by the forth power of the standard deviation. It is the forth statistical moment of the ticker symbols motion.
You may change the period over which the Kurtosis is by calculated pressing the edit button.