How Sortino ratio works
Unlike the Sharpe ratio, it focuses on returns below a target or minimum acceptable return rather than treating upside and downside movement alike. The chosen target, history and calculation method can materially change the result.
The figure should always be read with its measurement period, product type and source. A precise-looking number can still answer the wrong question when two unlike products or time periods are compared.
An example
With a 10% return, 6% target and 5% downside deviation, the simplified Sortino ratio is (10−6)÷5 = 0.8.
Why it matters for your family
It can add context for long-term portfolios, but it remains a backward-looking statistic. Pair it with drawdown, rolling returns and the actual date when the money is needed.
Connect the figure to a dated goal before acting. Money for an emergency or near-term payment has different constraints from retirement money, even when the product description quotes the same statistic.
Questions people ask
- What does Sortino ratio mean?
- The Sortino ratio measures excess return per unit of harmful, downside volatility.
- Why does Sortino ratio matter for a family?
- It can add context for long-term portfolios, but it remains a backward-looking statistic. Pair it with drawdown, rolling returns and the actual date when the money is needed.
- Does a good Sortino ratio figure guarantee a result?
- No. It is a measurement of past or assumed conditions. Its meaning depends on the period, data and products being compared, and it cannot guarantee a future outcome.
- Where can I verify information about Sortino ratio?
- Start with SEBI Investor, linked on this page, and the current official document for the product or tax year involved.