Risk Parity Calculator
Find portfolio weights so each asset contributes equally to total risk. Use risk budgeting to build diversified, volatility-balanced portfolios.
Annual standard deviation of the risk parity portfolio
Typical stock–bond correlation is around 0.1–0.3. Use 0 for uncorrelated (inverse-volatility) weights.
Assets (volatility in %)
What is Risk Parity?
Risk parity is a portfolio allocation method that aims to equalize each asset's contribution to total portfolio risk. Instead of allocating by dollar weight (e.g. 60% stocks, 40% bonds), you allocate so that stocks and bonds each contribute the same amount of risk. Because stocks are typically more volatile than bonds, a risk parity portfolio will hold a larger share in bonds and a smaller share in stocks than a traditional 60/40 portfolio.
Risk budgeting extends this idea: you set a "risk budget" per asset (e.g. equal risk contribution) and solve for the weights that achieve it. This calculator finds those weights given each asset's volatility and an optional correlation between assets.
How to Use This Calculator
- Enter assets: Add each asset (e.g. Stocks, Bonds, Gold) and its annual volatility as a percentage. You can use historical volatility or implied volatility from options.
- Set correlation: Optionally set the average correlation between assets. Use 0 for uncorrelated (simple inverse-volatility weights). Typical stock–bond correlation is around 0.2.
- Read results: The calculator shows the risk parity weight for each asset (as %) and each asset's risk contribution (should be equal). Portfolio volatility is the annual standard deviation of the risk parity portfolio.
Why Risk Parity Matters for Traders
Risk parity helps you build portfolios that are balanced by risk rather than by capital. This can improve diversification and reduce concentration in high-volatility assets.
- Equal risk contribution: No single asset dominates portfolio risk, which can smooth drawdowns.
- Volatility scaling: Lower-volatility assets get higher weights; higher-volatility assets get lower weights, so each contributes the same to total risk.
- Risk budgeting: You can extend the idea to assign different risk budgets (e.g. 50% risk from bonds, 50% from stocks) instead of equal contribution.
Frequently Asked Questions
What is risk parity?
Risk parity is a portfolio allocation method where each asset contributes equally to total portfolio risk. Instead of equal dollar weights (e.g. 60/40), you choose weights so that the risk contribution from each asset is the same. Higher-volatility assets get smaller weights; lower-volatility assets get larger weights.
How do you calculate risk parity weights?
For uncorrelated assets, risk parity weights are proportional to the inverse of volatility: w_i ∝ 1/σ_i, normalized to sum to 100%. With correlation between assets, weights are found by solving for equal risk contributions (marginal contribution to portfolio variance). Our calculator supports both cases.
What is a risk budget?
A risk budget is the share of total portfolio risk that you assign to each asset or strategy. Equal risk contribution (risk parity) is one form: each asset gets the same risk budget. You can also set custom risk budgets (e.g. 50% risk from bonds, 50% from stocks) and solve for the corresponding weights.
Why use risk parity instead of 60/40?
A 60/40 portfolio is heavily dominated by stock risk because stocks are more volatile than bonds. Risk parity balances risk across assets, often leading to more bonds and fewer stocks than 60/40. This can reduce drawdowns and improve risk-adjusted returns when bond and stock volatilities differ a lot.
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Model Risk, Then Build the Strategy
You've balanced your portfolio risk—next, build indicators and strategies that match it. Use Pineify's Pine Script editor and AI to create custom risk and volatility tools on TradingView.