A Sortino Ratio is a measure of risk reward similar to a Sharpe Ratio. The difference is that the Sortino uses downside deviation as the proxy for risk rather than standard deviation. The theory being that we really only car about volatility to the downside not volatility when its positive. Here is a list of the top 20 and the bottom 20 Australian ETFs (only those with 5 years of history) sorted by Sortino.
