Portfolio Risk (Std Dev) Calculator
Calculate standard deviation and volatility of your investment portfolio. Analyze risk metrics for better portfolio management.
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Portfolio Risk Calculator FAQ
What is Portfolio Standard Deviation?
Portfolio standard deviation measures the volatility of your investment portfolio. It shows how much the portfolio's returns vary from the average return, indicating the level of risk.
How to Calculate Portfolio Variance?
Portfolio variance is calculated by considering the weights of each asset, their individual variances, and the covariances between assets. It's the square of standard deviation and represents total risk.
What is a Good Standard Deviation for a Portfolio?
Standard deviation depends on your risk tolerance and investment horizon. Conservative portfolios might target 5-10% annual volatility, while aggressive portfolios may accept 15-25% or higher.
How Does Diversification Affect Portfolio Risk?
Diversification reduces portfolio risk by combining assets with low correlations. The portfolio's standard deviation will be lower than the weighted average of individual asset volatilities.
What is the Difference Between Variance and Standard Deviation?
Variance is the average of squared deviations from the mean, measured in squared units. Standard deviation is the square root of variance, expressed in the same units as the original data.
How Often Should I Calculate Portfolio Risk?
Calculate portfolio risk regularly, especially after significant market changes, portfolio rebalancing, or adding/removing assets. Monthly or quarterly reviews are common for most investors.
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