The CALMAR Ratio is exactly the same as the MAR Ratio except that the calculation is restricted to the past three years of data.
Kurtosis is the 4th moment of the distribution, where a normal distribution has K=3. Larger values mean the distribution has higher probabilities of extreme tail events (either very good or very bad); less than 3 means these are less likely (again compared to a normal distribution).'Kurtosis'
A statistical measure used to describe the distribution of observed data around the mean.
It is sometimes referred to as the "volatility of volatility."