ISDA has published the ISDA SIMM® Methodology, version 2.6, with an effective date of December 2, 2023.
This version of SIMM includes updates based on the full recalibration and industry backtesting of the methodology. The SIMM methodology remains a central part of the SIMM Governance Framework that SIMM users are expected to adhere to.
The effective date of December 2, 2023 means that SIMM users should use SIMM version 2.6 to calculate the initial margin for Close of Business (COB) on Friday, December 1, 2023 onwards. This means that the first day for exchange of initial margin calculated using SIMM version 2.6 would be on Monday, December 4, 2023.
Documents (1) for ISDA Publishes ISDA SIMM® Methodology, Version 2.6
Latest
Protected: 2025 Year-End Bonus Election Form
This content is password protected. To view it please enter your password below: Password:
Key IRD Trends from BIS 2025 Survey
This paper highlights changes in over-the-counter (OTC) interest rate derivatives (IRD) markets between April 2022 and April 2025, based on data from the Bank for International Settlements (BIS) Triennial Central Bank Survey. The survey provides a comprehensive view of global...
RMB IRD Growth in Mainland China & Hong Kong
This report analyzes interest rate derivatives (IRD) activity in mainland China and Hong Kong, with a particular focus on renminbi (RMB)-denominated IRD. It examines market growth, structure and integration across onshore and offshore centers, and places these developments within the...
ISDA and SIFMA Comment on CFTC Proposed Revisions to Business Conduct and Swap Documentation Requirements
On October 24, 2025 ISDA and SIFMA submitted comments to the CFTC on its proposed Revisions to Business Conduct and Swap Documentation Requirements for Swap Dealers and Major Swap Participants. The proposal covers amendments to requirements related to external business...