Sharpe justification?

'Be careful what you wish for, as you may just get it¦' The Sharpe ratio is a statistic which aims to sum up the desirability of a risky investment strategy or instrument by dividing the average period return in excess of the risk-free rate by the standard deviation of the return generating process. Devised in 1966 as a measure of performance for mutual funds, it undoubtedly has some value as a measure of strategy 'quality,' but it also has several crucial limitations.Furthermore, its wid