定價
績效指標
風險調整報酬

Serenity Ratio

Definition

Serenity Ratio是一種風險調整指標,綜合報酬、回撤和波動率來評估投資的穩定性和可持續性,提供風險調整效率的全面衡量標準。

Formula

Serenity Ratio=RpRfUlcer Index×Pitfall\text{Serenity Ratio}=\frac{R_p - R_f}{\text{Ulcer Index} \times \text{Pitfall}}

Where:

  • RpR_p = Portfolio return
  • RfR_f = Risk-free rate
  • Ulcer Index = Quadratic mean of the drawdowns (depth and duration of drawdowns)
  • Pitfall = CDaRσp\frac{\text{CDaR}}{\sigma_p}, the extreme-risk penalty
  • CDaR = Conditional Drawdown at Risk (the CVaR of the drawdown distribution)
  • σp\sigma_p = Standard deviation of portfolio returns

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幫助
Serenity Ratio Definition & Formula · PortfolioMetrics