Benchmark fallbacks are replacement rates that would apply to derivatives trades referencing a particular benchmark. These would take effect if the relevant benchmark becomes unavailable while market participants continue to have exposure to that rate.
ISDA plans to publish a supplement to the 2006 ISDA Definitions in July to incorporate new fallbacks for derivatives that reference certain key interbank offered rates (IBORs). Simultaneously, ISDA will publish a protocol that will allow market participants to choose to incorporate the revisions into their legacy derivatives trades.
Ahead of the publication, ISDA has published a factsheet, Understanding IBOR Benchmark Fallbacks, as well as a video interview with Ann Battle, Head of Benchmark Reform at ISDA, explaining why changes to fallbacks are necessary.
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...
