two measure will produce similar results. As skewness increases and targets vary from the median, results can be expected to show dramatic differences. Practitioners who use a lower partial Standard Deviation (LPSD) instead of a standard deviation also tend to use the Sortino ratio instead of the Sharpe ratio. See also Modern portfolio theory Modigliani risk-adjusted performance Omega ratio Post-modern portfolio theory Sharpe ratio Upside potential ratio V2 ratio References Financial ratios Statistical ratios Portfolio theories Yield (finance)