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Quantitative Finance · Glosario

¿Qué es Initial-margin model?

Definition 25.1 Rates, Credit, XVA and Risk · Capítulo 25 — Margin Models

An initial-margin model sets the collateral a party must post against the loss its counterparty would suffer in closing out its portfolio after a default, over the margin period of risk, at a high confidence: at clearing houses at least 99% single-tailed, for bilateral trades 99% over ten days.

Ejemplos

Example 25.2 (A member’s swap book)

A member’s cleared USD swaps have illustrative exposures of +60+60, −40-40, −150-150 and −30-30 thousand dollars per basis point at two, five, ten and thirty years (the P&L for a one-basis-point rise), a net −160-160 thousand. With daily Treasury par yields standing in for swap rates, a five-day historical simulation at 99% over one year of history gives an initial margin of USD 4.19 million on average in February 2020.

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