Default Fund Sizing Models

Methodology

Default fund sizing models are quantitative frameworks used by clearing houses, including those for crypto derivatives, to determine the optimal capital required to absorb losses from a defaulting clearing member. These models typically employ stress testing, scenario analysis, and statistical methods like Value-at-Risk (VaR) or Expected Shortfall (ES). They assess potential losses under extreme but plausible market conditions, considering correlations across various asset classes. The methodology aims to ensure sufficient resources without imposing excessive capital burdens. This rigorous approach underpins financial stability.