Briefing

US and UK authorities rehearsed a hypothetical clearing-house resolution

Written by WiT Markets EditorialReview Editorially reviewedLast reviewed

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On 11 September 2026 the US Securities and Exchange Commission and other authorities published a joint readout of a tabletop exercise on central counterparty resolution. The exercise was held on 3 September 2026. It discussed a hypothetical failure. The readout does not say that a clearing house failed.

A table with several seats, for a rehearsal rather than an operating incident
Editorial illustration. It is not a photograph of an event, and it does not show a price.

Key facts

  • The joint readout is dated 11 September 2026.
  • The tabletop was held on 3 September 2026.
  • The scenario was a hypothetical CCP resolution. No clearing house is named as having failed.

The readout, release 2026-87, says senior officials from the Securities and Exchange Commission, the Federal Deposit Insurance Corporation, the Commodity Futures Trading Commission, the Federal Reserve Board and the Bank of England met to discuss issues in the hypothetical resolution of central counterparties. It describes the meeting as one of a series held since 2017 to share views on CCP resolution and to review joint work.

Participants reviewed information-sharing and communications arrangements that would support financial stability if a CCP resolution were required. They acknowledged the value of continued dialogue and of sharing analysis and policy work. The release names media contacts at those agencies. It does not name a clearing house, a loss figure, a defaulted member or a market that was closed.

A tabletop is a planning exercise. Reading it as news of an outage would add an event the document does not contain. The same is true of reading it as a new capital rule or a new margin standard. The document is evidence that the named authorities practised coordination. It is not evidence of a failure on 3 September 2026.

Why it matters for investors and traders

Clearing members and the clients who depend on a central counterparty can see that US and UK authorities practised how they would share information in a resolution. The practice is about coordination. It is not a finding that a default fund was used.

Markets discussed: Derivatives. These are the subjects of the briefing, not a list of markets that moved.

Uncertainties

  • The readout does not describe the scenario’s steps, the assumed loss, or the tools the authorities would use.
  • No clearing house is identified.
  • The series of meetings since 2017 is mentioned. Earlier readouts are not summarised here.

What to watch next

  • Keep the exercise separate from any later notice of a real default.
  • Use a clearing house’s own default-management rules for the operational steps. They are not in this readout.
  • The 11 September date is the readout. The 3 September date is the meeting.

How to read this development

Resolution exerciseUnited States and United KingdomUS Securities and Exchange Commission and participating US and UK authorities

The document is dated 11 September 2026. This briefing was published on 22 October 2026. The two dates are not the same event.

Who is affected

Authorities responsible for central counterparty resolution in the United States and the United Kingdom. No clearing member is named.

What changes

No rule changes. Officials reviewed information-sharing arrangements for a hypothetical CCP resolution.

When it applies

The exercise was held on 3 September 2026. The readout is dated 11 September 2026. Neither date is an incident date.

Markets, research and tools

Further reading: Market structure

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Sources and review

Written by: WiT Markets Editorial. Writes and structures WiT Markets pages. Separates a sourced fact from a cell that is Not confirmed.

Review: Editorially reviewed. This is not a qualified specialist review and it is not a legal sign-off.

Last reviewed: . Next review due . The date is an editorial pass. It is not a live check of every third-party fee.

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US and UK authorities’ clearing-house resolution exercise | WiT Markets