CME Securities Clearing Inc. has proposed a more detailed playbook for handling a member or user failure in the U.S. Treasury securities market. The firm filed the rule change on October 9, and the Securities and Exchange Commission published its notice on October 16.
Liquidation agents enter the default playbook
The SEC notice for SR-CMESC-2026-011 says the risk management framework would spell out how CME Securities Clearing and a liquidation agent assess exposures, reconcile positions and design a close-out strategy. The agent could execute open-market transactions, arrange hedges and perform related tasks intended to reduce losses and market disruption.
The proposal also recognizes execution brokers that could provide operational support. Where appropriate, the clearing house could maintain an account as principal, while a broker submits back-to-back trades mirroring the liquidation agent’s transactions. The filing says that structure is expected to keep the account net flat and help meet settlement obligations as they come due.

Member and user failures get clearer steps
The proposed CME clearing default rules would clarify monitoring of user risk before a member failure and the transfer of non-defaulting users’ positions to a member in good standing. If a transfer is not practical, the clearing house could close out some or all positions while continuing to monitor collateral.
For a user with multiple authorizing members, default-management costs would be allocated according to the margin requirement tied to each member’s authorized positions. The framework would also clarify steps to contain risk, control cash and securities, and assess upcoming settlement obligations.
The filing addresses market infrastructure rather than a pricing change. Fusion Market News has separately covered Cboe’s binary-options fee formula and the SEC’s NYSE Texas review.
What the SEC reviews next
The SEC has not approved the change. After Federal Register publication, the agency generally has 45 days to approve, disapprove or begin proceedings, with a possible extension to 90 days. The comment deadline is 21 days after publication.
The proposal matters because the framework is designed to preserve clearance and settlement when a participant fails. It also connects to the broader Treasury market backdrop discussed in Fusion Market News’ report on August foreign capital flows.




