Pooling Arrangement Simplification

Overview

This calculator implements the simplified capital requirement for Collateral Pooling within the Solvency II counterparty risk module.^[1] This simplified approach is intended for undertakings where the standard-formula calculation is disproportionately complex relative to the risk. The requirement is defined as the economic capital necessary to provide a 1-in-200 year level of protection using proxy variables for pooled collateral values across multiple counterparties.^[2]

Input Terms

• Pool Value (P): The current market value of the assets held in a collateral pool shared across multiple counterparties.^[1]
• Specified Allocation Proxy: The regulatory factor used to allocate the collateral-driven protection to each exposed counterparty.

Technical Rationale

The Counterparty Pooling Simplification is calibrated to a 99.5% confidence level over a one-year horizon. It captures the sensitivity of the undertaking’s basic own funds to a default where the recovery is dependent on a shared pool of collateral (e.g., a group-wide reinsurance collateral trust). Unlike a full article-by-article revaluation, which requires complex allocation and prioritization modeling, this simplification uses a direct pool-based proxy where the requirement is a function of the total pool value and the individual exposures.^[1]

This method is governed by the principle of proportionality (Article 109), ensuring that smaller undertakings can calculate their solvency capital requirements without the operational burden of a full-scale pooling-valuation engine. The result represents the simplified pooled-collateral contribution to the total Counterparty Default Risk.

Important Notes

• Regulatory deviation: Material deviation from the standard-formula assumptions or from the conditions supporting this simplification may support a capital add-on or a move toward a fuller or internal-model approach where justified.^[3]
• Reporting: The simplified result is intended to support the corresponding standard-formula component feeding the S.25.01 standard-formula reporting view, not to replace the connected article-chain result where the simplification is not justified.^[4]