Shiva Swinger
12-14-2005, 11:30 PM
Does Ray have plans for adding the Sortino ratio to the Performance summary. It is helpful for daytrading.
One of the problems with using the Sharpe ratio is that it punishes trading systems for having a high upside volatility profile. It can be argued that upside volatility is of no concern, as that means large positive monthly gains in the distribution of returns., and there is a risk measure which eliminates the upside volatility skew from the Sharpe ratio by using the volatility of negative returns only. This measure is called the Sortino ratio.
Stewart
One of the problems with using the Sharpe ratio is that it punishes trading systems for having a high upside volatility profile. It can be argued that upside volatility is of no concern, as that means large positive monthly gains in the distribution of returns., and there is a risk measure which eliminates the upside volatility skew from the Sharpe ratio by using the volatility of negative returns only. This measure is called the Sortino ratio.
Stewart