Greek Scenario Risk Attribution
objective
Attribute option risk and pnl under deterministic greek and scenario decomposition frameworks.
workflow
- •define greek hierarchy and scenario grid for the option book.
- •compute baseline and shocked greeks across nodes.
- •attribute pnl to greek buckets and residual unexplained components.
- •stress factor interactions under jump and skew scenarios.
- •publish attribution only after reconciliation and residual checks.
required diagnostics
- •greek attribution completeness and residual error rate.
- •scenario pnl explainability by factor bucket.
- •nonlinear interaction contribution under stress.
- •greek concentration and limit utilization trends.
- •daily reconciliation between modeled and realized pnl.
risk controls
- •enforce residual attribution tolerance limits.
- •enforce scenario coverage standards for governance reviews.
- •enforce escalation on repeated unexplained pnl.
outputs
- •run
python scripts/greek_scenario_risk_attribution_diagnostics.py input.csv --output diagnostics.jsonand keep the json artifact. - •write an implementation memo using
references/greek-scenario-risk-attribution-playbook.mdwith assumptions, tests, limits, and rollout plan.
resources
- •use
scripts/greek_scenario_risk_attribution_diagnostics.pyfor deterministic diagnostics. - •use
references/greek-scenario-risk-attribution-playbook.mdfor the domain checklist and delivery structure.