The trading clock and the clearing clock

CME’s 24/7 launch today and the conversation focusses on matching still.

The market did not go continuous. The trading clock did. The clearing clock stayed exactly where it was: Monday to Friday, business-day cycle, next-business-day settlement on every weekend trade.

That distinction sounds like a footnote. It is not. It begs the question who can extend trading hours without breaking their regulatory framework, and who cannot. CFTC Regulation 39.14, PFMI Principle 8, and the operating hours of Fedwire Funds Service all assume a business day exists. Capital treatment under SA-CCR and the QCCP risk weight both rest on the same assumption.

CME could decouple the two clocks cleanly because the architecture separates them. A fully vertically integrated venue does not have that option.

This week’s edition of The Clearing Gap walks through the mechanics, the regulatory citations that underpin these limitations.

This first appeared on LinkedIn on 28 May 2026. If you want to comment or discuss, that’s the place.