The 2009 ISDA Credit Derivatives Determinations Committees and Auction Settlement CDS Protocol (or ‘Big Bang’ Protocol) represents the final step in the process known as “hardwiring”, or the incorporation of auction settlement terms into standard CDS documentation.
This is implemented by way of a supplement to the 2003 ISDA Credit Derivatives Definitions. The Auction Supplement amends the ISDA CDS Definitions to incorporate the CDS settlement auction terms that have to date been included in the auction protocols. It also includes provision for the ISDA Determinations Committee, which going forward will make binding determinations for issues such as whether a Credit Event has occurred; whether an auction will be held; and whether a particular obligation is deliverable.
The amendments made by the Auction Supplement apply to transactions entered into going forward. ISDA has also published a Protocol to facilitate the amendment of existing transactions to reflect the new terms.
Full details on the Big Bang Protocol, including FAQs, supplemental materials, and a list of adhering parties, can be found here.
Latest
The CPI Quandary
The recent US government shutdown didn’t just create weeks of political drama – it also left inflation-linked swaps dealers with a major headache: how should they determine an initial value for new trades given the US Bureau of Labor Statistics...
ISDA Response to HMT, BoE on UK CCPs
On November 18, ISDA submitted its responses to the Bank of England (BoE) consultation on ensuring the resilience of central counterparties (CCPs) and the UK Treasury’s (HMT) two draft CCP statutory instruments (SIs). These consultations form part of the update...
Doubling Down on Appropriate Trading Book Capital
Throughout ISDA’s 40th anniversary year, we’ve been reflecting on the quest for greater consistency and efficiency that underpins everything we’ve achieved since 1985. It was at the heart of the original efforts to bring greater standardization to the nascent derivatives...
Determining Initial Reference Index for New Trades
On November 25, 2025, ISDA published a Market Practice Note (MPN) to recommend a specific methodology that market participants could elect to use for the purposes of determining the Initial Reference Index for certain new inflation derivative transactions given that...
