The 2021 ISDA Interest Rate Derivatives Definitions will replace the 2006 ISDA Definitions as the standard definitional book for cleared and non-cleared interest rate derivatives. ISDA finalized the new definitions on May 18, 2021, ahead of publication on a new web-based user platform (expected on June 4, 2021). An implementation date has been set for the weekend of October 2/3, 2021.
Since the 2006 ISDA Definitions were published 15 years ago, there have been numerous changes in market structure, regulations, technology and market practice. Important lessons have also been learned from various unscheduled market closures. While ISDA has published over 70 supplements to keep the 2006 ISDA Definitions current, this has led to the definitional booklet becoming unwieldy and difficult to use. The 2021 Definitions will consolidate these supplements into the main book, as well as making other necessary updates.
ISDA has published a new factsheet outlining the key changes.
Click on the PDF below to read the factsheet.
Documents (1) for Introduction to the 2021 ISDA Interest Rate Derivatives Definitions
Latest
Paper on Proposal 6 on Margin Transparency
On November 16, ISDA published a document that looked at proposal 6 in the final Basel Committee on Banking Supervision (BCBS), Committee on Payments and Market Infrastructures (CPMI) and International Organization of Securities Commissions (IOSCO) report on margin transparency. Proposal...
Tender Issued for DC Administrator Role
ISDA and the Credit Derivatives Governance Committee have issued an invitation to tender for an independent regulated entity to serve as the administrator for the Credit Derivatives Determinations Committees (DCs), which includes assuming the role of DC secretary. The DC...
ISDA SIMM: The Standard for IM Calculations
The ISDA Standard Initial Margin Model (ISDA SIMM) plays an important role in ensuring margin calculations are consistent, transparent and aligned with global best practices and regulatory requirements. Since its launch in 2016, the model has been rigorously tested, regularly...
ISDA In Review – October 2025
A compendium of links to new documents, research papers, press releases and comment letters published by ISDA in October 2025.