What Is How to Calculate Portfolio Risk in 2026?
Portfolio risk calculation goes far beyond standard deviation and beta. Modern approaches incorporate tail risk, correlation stress, maximum drawdown, and conditional value-at-risk to give a complete picture of what could go wrong.
Why It Matters
A portfolio with low volatility can still have catastrophic tail risk. During the 2008 crisis, many 'low-risk' portfolios lost 40% because their correlation models failed to capture extreme events.
How LyraIQ Approaches This
LyraIQ's risk engine computes volatility regime classification, correlation stress matrices, and heuristic drawdown estimates. The system models historical shocks like the 2008 crash and COVID crash against your current holdings to show which positions would be most impacted.
Practical Steps
- List all holdings with weights and sectors
- Calculate standard deviation and beta as baseline metrics
- Add tail-risk measures: CVaR and maximum drawdown
- Stress-test against historical scenarios
- Review correlation risk between holdings