RCA-01 · Capital & Quantitative Risk · FRTB IMA · Educational / Pre-Validation
FRTB IMA Expected Shortfall Pre-Validator
Educational simulator for FRTB Internal Models Approach (IMA) Expected Shortfall computation across a synthetic trading book. Covers liquidity horizons LH1–LH5 (10–120 days), NMRF surcharge estimation, PLA test status, and IMA capital vs SA floor comparison. For pre-validation and educational scenario analysis ahead of UK IMA go-live January 2028. All computation is client-side — no trading book data transmitted.
simulate_frtb_esrisk_parameterFRTB MAR30–33UK IMA Jan 2028PLA TestNMRF Surcharge
Educational / Pre-validation only. This tool uses synthetic position data and a simplified FRTB IMA model for scenario analysis. It does not constitute a regulatory-grade IMA calculation. UK FRTB IMA go-live: January 2028 (PRA CP17/25). EU: ~2029–30. All inputs are synthetic or user-provided; no data is transmitted.
Preset 1
Equity Book
50 positions · 3 LH classes · 5% NMRF
Preset 2
Mixed Rates Desk
100 positions · 4 LH classes · 10% NMRF
Preset 3
Large Mixed Book
200 positions · 5 LH classes · 15% NMRF
Chain Intake — paste AP2 JSON from QFA-02 (Portfolio VaR) or SIM-03 (Basel RWA)
ES Results
—
Diversified ES
Portfolio-level 97.5% ES
—
Undiversified ES
Sum of position contributions
—
NMRF Surcharge
1.5× NMRF position ES
—
PLA Test
P&L Attribution
—
Capital IMA
1.5×ES + NMRF surcharge
—
SA Floor
Simplified SA capital floor
P&L Distribution — ES Zone (left 2.5%)
ES by Liquidity Horizon (LH1–LH5)
Capital Decomposition: IMA vs SA Floor
—
—
AP2 Artifact Export — execution_hash anchors this computation