Click here to view the SONIA reform frequently asked questions (FAQ) document, or download the attached PDF.
These FAQs, which may be updated from time to time, comprise information on the SONIA benchmark reforms and the derivatives industry’s implementation of the relevant changes.
Click here to view Supplement 55 to the 2006 ISDA Definitions or download the attached PDF.
Documents (2) for SONIA reform FAQs and publication of GBP-SONIA-Compound
Latest
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) 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...