Sortino Ratio
Definition
Sortino Ratioã¯ãç·ãªã¹ã¯ã§ã¯ãªãè² ã®åå·®ã®ã¿ã䜿çšããŠããŠã³ãµã€ããªã¹ã¯ã«å¯Ÿããæè³ã®è¶ éãªã¿ãŒã³ã枬å®ãããªã¹ã¯èª¿æŽæžã¿ææšã§ããSortino Ratioãé«ãã»ã©ãªã¹ã¯èª¿æŽåŸã®ããã©ãŒãã³ã¹ãåªããŠããŸãã
Formula
Where:
- = Portfolio return
- = Risk-free rate
- = Downside deviation (standard deviation of negative portfolio returns)
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