Sharpe & Sortino Ratio Calculator
Free Sharpe and Sortino ratio calculator to measure risk-adjusted returns. Enter return, risk-free rate, and volatility to compute both ratios instantly.
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How It Works
This calculator computes Sharpe and Sortino ratios to measure risk adjusted returns. Simple mode accepts annualized portfolio return, risk free rate such as ten year Treasury yield, and annualized standard deviation from a fund factsheet. Advanced mode accepts a raw series of periodic returns and computes mean return, total volatility, downside deviation, and both ratios with automatic annualization based on daily, monthly, or annual frequency. Example: twelve percent return, four percent risk free, fifteen percent volatility yields Sharpe of roughly zero point five three. Sortino typically exceeds Sharpe when upside months are volatile because Sortino penalizes only returns below the target, usually zero or risk free rate. Enter sixty monthly fund returns to reproduce factsheet Sharpe independently and verify manager claims.
Review Sharpe ratio, Sortino ratio, mean return, total volatility, downside deviation, observation count, and interpretation band from poor through excellent. Compare Sortino to Sharpe on the same series to detect asymmetric profiles: large Sortino minus Sharpe gaps flag strategies with lumpy upside months such as options income or trend following. Swap risk free input to match home currency sovereign yield when comparing international funds. Match risk free rate period to return period before annualizing. Use at least thirty six monthly observations for stable estimates: ratios above three over short windows often reflect luck rather than repeatable skill. Pair with Maximum Drawdown Calculator to see whether strong ratios hide large peak to trough losses and Portfolio Beta for market sensitivity when Sharpe looks strong only during bull markets.
When comparing international funds, swap the risk-free input to match the home currency sovereign yield. Match risk free rate period to return period before annualizing. Use at least thirty six monthly observations for stable estimates: ratios above three over short windows often reflect luck rather than repeatable skill. Pair with Maximum Drawdown Calculator to see whether strong ratios hide large peak to trough losses and Portfolio Beta for market sensitivity when Sharpe looks strong only during bull markets.
Use Sharpe & Sortino Ratio Calculator whenever inputs change: after market moves, new contributions, or revised personal assumptions. Bookmark the page for quick reruns without installing software.
Step by step
- Open Sharpe & Sortino Ratio Calculator and enter your current inputs.
- Review calculated outputs and summary tables.
- Adjust assumptions and compare scenarios side by side.
Worked example
This calculator computes Sharpe and Sortino ratios to measure risk adjusted returns. Enter the sample inputs described in How it works to reproduce the scenario step by step.
Adjust one input at a time to see sensitivity. Sharpe & Sortino Ratio Calculator updates instantly so you can stress test optimistic and conservative assumptions before acting.
When to use this calculator
Reach for Sharpe & Sortino Ratio Calculator when compute sharpe and sortino ratios to measure risk-adjusted portfolio returns.. It suits quick what if analysis before trades, allocation changes, or plan updates.
Pair with related tools when the decision spans taxes, liquidity, or multi year projections beyond what one formula captures.
Common mistakes
Copying outputs without checking input units or stale market prices is a frequent error with Sharpe & Sortino Ratio Calculator. Confirm tickers, percentages, and dates before acting.
Running a single baseline scenario ignores tail risks. Stress test with conservative inputs and compare against related tools listed below when the decision is material.
The Formula
Sharpe Ratio = (Rp − Rf) / σp
Sortino Ratio = (Rp − Rf) / σd
where Rp = portfolio return, Rf = risk-free rate
σp = standard deviation of returns
σd = downside deviation (only returns below target)
Higher ratios indicate better risk adjusted returns. Sharpe penalizes all volatility equally. Sortino penalizes downside volatility only. Use at least thirty six monthly observations for stable estimates. Ratios above three over short windows often reflect luck rather than repeatable skill.
Limitations and assumptions
Higher ratios indicate better risk adjusted returns. Sharpe penalizes all volatility equally. Sortino penalizes downside volatility only. Use at least thirty six monthly observations for stable estimates. Ratios above three over short windows often reflect luck rather than repeatable skill. Sharpe & Sortino Ratio Calculator does not replace personalized advice. Fees, slippage, account specific rules, and behavioral constraints may change real world outcomes.
Key terms
- What does the Sharpe ratio actually tell me
- Sharpe ratio measures return per unit of total risk using standard deviation of excess returns over risk free rate.
- Why should I use Sortino instead of Sharpe
- Sortino ratio penalizes only downside volatility below a target return, usually zero or risk free rate.
- Model assumption
- Context dependent benchmarks vary by era.
Compare alternatives
Use Maximum Drawdown Calculator alongside Sharpe to see whether strong ratios hide large peak to trough losses. Use those calculators when sharpe & sortino ratio calculator alone does not capture the full decision.
Internal links on portfolios.tools help you chain calculators: run Sharpe & Sortino Ratio Calculator first, then validate edge cases with a specialized tool from the related section below.
FAQ
What does the Sharpe ratio actually tell me?
Sharpe ratio measures return per unit of total risk using standard deviation of excess returns over risk free rate. Ratio above one suggests compensation for risk taken. Compare fund Sharpe to S&P 500 over identical date range to judge skill versus beta exposure. Negative Sharpe means return fell below risk free rate while still taking volatility. Sharpe treats upside and downside volatility equally, which penalizes strategies with volatile winning months even when investors welcome that upside. A fund that doubles in one month and flatlines thereafter may show mediocre Sharpe despite attractive total return because variance spikes from the winning month.
Why should I use Sortino instead of Sharpe?
Sortino ratio penalizes only downside volatility below a target return, usually zero or risk free rate. It ignores upside volatility which many investors do not treat as risk. Trend following and options income strategies often look better on Sortino than Sharpe. Target Sortino above one point five when evaluating income strategies with capped upside. Sortino denominator is downside deviation: standard deviation computed only on returns below target.
What is a good Sharpe ratio?
Context dependent benchmarks vary by era. Sharpe above one is generally good, above two very good, above three excellent over full cycles. Sortino above two is strong. Hedge fund databases report median equity long short Sharpe near zero point five to zero point eight over full cycles. Compare ratios over identical date ranges: cherry picked windows inflate both metrics. Report observation count alongside ratio so readers judge statistical reliability.
When should I use simple mode vs advanced mode?
Simple mode suits factsheet inputs when you know annualized return, risk free rate, and standard deviation only. Advanced mode suits raw return series when factsheets omit Sortino or use different risk free assumption than yours. Advanced mode computes downside deviation directly from negative excess returns in your pasted series. Switch modes rather than manually annualizing partial year data in simple fields.
Are daily and monthly returns annualized automatically?
Daily returns annualize by multiplying mean and volatility by square root of two hundred fifty two. Monthly returns use square root of twelve. Annual returns need no scaling. Mixing monthly returns with annual Treasury yield without matching periods skews Sharpe. Select return period dropdown in advanced mode before pasting series so annualization matches your data frequency.
How do I use this Sharpe and Sortino ratio calculator on phone or tablet?
Yes. Sharpe & Sortino Ratio Calculator runs entirely in your mobile browser with the same formulas as desktop. Optional localStorage may remember inputs on your device when enabled in browser settings.
Where is my data stored when I use Sharpe & Sortino Ratio Calculator?
Nowhere on our servers. Calculations execute locally in your browser. Optional localStorage saves form fields on your device only and never transmits portfolio numbers over the network.
Should I rely on Sharpe & Sortino Ratio Calculator for tax or legal decisions?
No. Sharpe & Sortino Ratio Calculator provides educational math only. Tax law, account rules, and personal circumstances vary. Consult a qualified tax or legal professional before transactions with material consequences.
Related Tools
Use Maximum Drawdown Calculator alongside Sharpe to see whether strong ratios hide large peak to trough losses. Portfolio Beta adds market sensitivity context. Time Weighted Return Calculator separates manager skill from cash flow timing on portfolios.tools when evaluating fund versus personal performance. Money Weighted Return Calculator shows whether your contribution timing helped or hurt versus fund level Sharpe.