Sortino Ratio: The Better Risk Metric for Value-Add CRE
Sortino measures only the volatility that represents loss — making it the right metric for asymmetric return profiles common in CRE.
The Formula
Why Sharpe Falls Short for CRE
Sharpe's denominator (standard deviation) treats upside surprise as risk. For a value-add CRE deal where the upside is the entire thesis, this is backwards. Sortino fixes this by only measuring deviation below the minimum acceptable return.
When to Use Each
- Sharpe — for symmetric return distributions (core stabilized assets)
- Sortino — for asymmetric return distributions (value-add, opportunistic, development)
Sophisticated LPs run both — the gap between them is informative on its own.
Run Both Ratios Free
Compare Sharpe and Sortino against strategy-bucket targets in one view.
Open Risk-Adjusted Return Calculator →Frequently Asked Questions
What is the Sortino ratio?
The Sortino ratio measures excess return per unit of downside volatility only — ignoring upside variance. Formula: (Return − Risk-Free Rate) ÷ Downside Deviation. It is preferred over Sharpe for investments with asymmetric return profiles.
Why use Sortino over Sharpe?
Sharpe penalizes both upside and downside volatility equally — which makes a "good" outperformance look like risk. Sortino measures only the volatility that actually represents loss, making it a fairer metric for value-add and opportunistic CRE.
What is downside deviation?
Downside deviation is the standard deviation of returns calculated only on returns below a minimum acceptable return (often the risk-free rate). It captures left-tail risk — the volatility that actually matters to LPs.