It's also possible to analyse the skewness and kurtosis on the period of time PnL by taking third and 4th moments of $Y_t$ respectively. Presumably you can conclude that for two collection with identical expectation and variance, you'll like the 1 with positive skew or lessen kurtosis, but probably not https://archerwbdgi.wssblogs.com/34068209/top-pnl-secrets