Adjusted Sharpe ratio of the return distribution
Source:R/AdjustedSharpeRatio.R
AdjustedSharpeRatio.RdAdjusted Sharpe ratio was introduced by Pezier and White (2006) to adjusts for skewness and kurtosis by incorporating a penalty factor for negative skewness and excess kurtosis.
Details
$$Adjusted Sharpe Ratio = SR * [1 + (\frac{S}{6}) * SR - (\frac{K - 3}{24}) * SR^2]$$
where \(SR\) is the sharpe ratio with data annualized, \(S\) is the skewness and \(K\) is the kurtosis
References
Carl Bacon, Practical portfolio performance measurement and attribution, second edition 2008 p.99
Pezier, Jaques and White, Anthony. 2006. The Relative Merits of Investable Hedge Fund Indices and of Funds of Hedge Funds in Optimal Passive Portfolios. https://econpapers.repec.org/paper/rdgicmadp/icma-dp2006-10.htm
Examples
data(portfolio_bacon)
print(AdjustedSharpeRatio(portfolio_bacon[,1])) #expected 0.7591435
#> portfolio.monthly.return....
#> Annualized Sharpe Ratio (Rf=0%, p=95%): 0.7913539
data(managers)
print(AdjustedSharpeRatio(managers['1996']))
#> HAM1 HAM2 HAM3 HAM4 HAM5
#> Adjusted Sharpe ratio (Risk free = 0) 1.961701 8.629791 1.1666 1.770722 NA
#> HAM6 EDHEC LS EQ SP500 TR US 10Y TR
#> Adjusted Sharpe ratio (Risk free = 0) NA NA 1.860219 0.03841304
#> US 3m TR
#> Adjusted Sharpe ratio (Risk free = 0) -543.8279