FRTB Implementation Strategy: AI-Supported Basel III Trading Book Compliance and Market Risk Optimization

An FRTB implementation strategy defines the roadmap for implementing the new market risk capital requirements under CRR3. It covers the approach selection between the Standardised Approach (A-SA) and Internal Models Approach (A-IMA), a cost-benefit analysis, phased rollout planning with milestones, resource allocation, and regulatory coordination. The goal is timely and capital-optimized implementation by January 2027.

The decision is made at the desk level based on a multi-dimensional assessment. Quantitative factors include capital requirements under SA vs. IMA, potential savings, and the output floor effect. Qualitative factors cover data infrastructure, risk factor modellability, backtesting capability, and P&L attribution readiness. Banks can pursue a hybrid approach: SA for less complex desks, IMA for areas with the highest capital optimization potential.

Implementation costs vary significantly by chosen approach. The Standardised Approach requires adjustments to sensitivity calculations, data infrastructure, and reporting, typically a moderate investment. The IMA additionally demands Expected Shortfall models, backtesting infrastructure, NMRF calculations, and P&L attribution, with substantially higher one-time and ongoing costs. The cost-benefit analysis must weigh both dimensions against expected capital savings.

The EU postponed FRTB implementation to 1 January 2027, announced in September 2025, to ensure international competitive equality. Banks should use the additional time for an informed approach selection, building data infrastructure, and stepwise implementation. Reactive last-minute implementation typically results in 15‑25% higher capital requirements compared to a strategically planned rollout.

Capital optimization under FRTB operates through several levers: First, strategic approach selection (SA vs. IMA) at the desk level. Second, optimization of desk structure to maximize diversification benefits. Third, improving risk factor modellability to reduce NMRF surcharges. Fourth, considering the output floor (72.5%) in the overall strategy. Proactive optimization can reduce capital requirements by 15‑25% compared to a standard implementation.

Many banks pursue a hybrid approach where the decision between SA and IMA is made at the desk level. Desks with complex portfolios and high capital optimization potential are enrolled for the IMA, while less complex desks remain on the Standardised Approach. This approach balances implementation effort and capital efficiency. Global banks increasingly favor this selective IMA deployment rather than full IMA coverage.

ADVISORI guides FRTB strategy development in three phases: In the analysis phase, we assess the current state, identify gaps, and simulate capital impacts for different approach scenarios. In the strategy phase, we develop a desk-specific approach selection, cost-benefit analysis, and phased rollout plan. In the implementation phase, we support the rollout, regulatory dialogue, and ongoing capital optimization.