ISDA has published the ISDA SIMM® Methodology, version 2.5, with an effective date of December 3, 2022.
This version of SIMM includes updates based on the full recalibration and industry backtesting of the methodology. The updates also include references to the ISDA SIMM Governance Framework (“Framework”) to emphasize that the SIMM methodology remains a central part of the Framework that SIMM users are expected to adhere to.
The effective date of December 3, 2022 means that SIMM users should use SIMM version 2.5 to calculate the initial margin for Close of Business (COB) on Friday, December 2, 2022 onwards. This means that the first day for exchange of initial margin calculated using SIMM version 2.5 would be on Monday, December 5, 2022.
Documents (1) for ISDA Publishes ISDA SIMM v2.5
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ISDA In Review – August 2026
A compendium of links to new documents, research papers, press releases and comment letters published by ISDA in August 2026.
Remove Bureaucracy from Cross-margin Approvals
Cross-margining programs play a critical role in financial markets. By ensuring margin requirements more closely reflect the actual risk of a portfolio of products, they reduce liquidity strain and improve market efficiency, both of which will become even more important...
Joint Response on CCP Resolution
On September 7, ISDA and FIA responded to a Bank of England (BOE) discussion paper on central counterparty (CCP) resolution. The associations support greater clarity on valuation capabilities prior to a crisis scenario and the boundary between recovery and resolution,...
Expanding Legal Agreement Coverage in the CDM
This paper examines the recent extension of the Common Domain Model (CDM)1 to represent two of the most significant, and previously undeveloped, areas of its legal agreement model: umbrella agreements and contract amendments. Umbrella agreements are widely used to document...