YouTube T1-12 Downside risk measures: semi-deviation, downside deviation, and Sortino ratio

[Nicole Seaman]

The two typical measures of downside risk focus on only the "bad" dispersion: Semi-deviation squares returns below the MEAN return, while downside deviation squares returns below a TARGET return (aka, minimum acceptable return, MAR). The Sortino Ratio divides by the downside deviation.

David's XLS: https://trtl.bz/2zcs2Ab