About the Sortino Ratio: The Sortino Ratio is a variation of the Sharpe Ratio that differentiates harmful volatility from total overall volatility by using the asset's standard deviation of negative portfolio returns—downside deviation—instead of the total standard deviation of portfolio returns. A higher Sortino Ratio generally indicates a better risk-adjusted performance, focusing on returns achieved relative to "bad" risk. The formula is: (Average Portfolio Return - Risk-Free Rate) / Downside Deviation. All inputs should be for the same period (e.g., monthly or annual).