The International Swaps and Derivatives Association (ISDA) publishes it as an industry-standard model so that the parties to a trade can agree on the amount of initial margin.
SIMM
- Japanese
- SIMM
- Also known as
- ISDA SIMM, Standard Initial Margin Model
- Last reviewed
- September 26, 2026
This is a draft, shown for review before publication.
The SIMM (Standard Initial Margin Model) is a model that calculates initial margin for OTC derivatives not cleared through a central counterparty by multiplying the sensitivities of the trades by risk weights and adding them up using correlations. It is an industry-standard model published by the International Swaps and Derivatives Association.