VALUE AT RISK TOOL #62

Portfolio Positions

TickerSharesLast PriceValueWeight
Historical
CVaR: —
Parametric
CVaR: —
Monte Carlo
CVaR: —

Return Distribution

VaR Sensitivity (Confidence Sweep)

Portfolio Summary

Total Value
Positions0
Portfolio Vol (ann)
Worst Historical Day
Best Historical Day
Skewness
Kurtosis

Risk Breakdown

Interpretation

Calculate to see analysis.

Methods

Historical: Sort actual returns, take the α-percentile loss. Non-parametric, captures fat tails.

Parametric: Assumes normal distribution: VaR = z_α × σ × √h. Fast but underestimates tail risk.

Monte Carlo: Simulate thousands of portfolio paths using actual return statistics. Best for multi-asset portfolios.

CVaR (Expected Shortfall): Average loss in the worst α% of scenarios. Always ≥ VaR. The true tail risk measure.
BBobop VaR Calculator v1.0 — Tool #62 — Cycle 15 — Portfolio risk quantification — Zero dependencies