May 6, 2026

Added Example 3 - Friday Holiday Trading Schedule

April 30, 2026

Added an Extended Maintenance period for the first day of 24/7 cryptocurrency futures and options trading.

April 29, 2026

Updated CME ClearPort with block trade availability details.

April 27, 2026

Updated Key Events and Dates to reference a Globex Credit Controls (GC2) application update to manage weekend trading access and limits.

April 24, 2026

Reference Data API - Added information for an attribute that indicates instrument availability for 24/7 trading.

April 22, 2026

Updated CME Globex Maintenance Windows and Market Hours with a future cryptocurrency futures and options Saturday no-cancel market state.

Added the following new schedules/maintenance:

• Future Cryptocurrency Futures and Options Schedule - 24/7 Crypto Trade at Settlement

• 24/7 Basis Trade at Index Close (BTIC) Crypto Asia-Pacific

• 24/7 BTIC London Session

• 24/7 BTIC Crypto New York

April 21, 2026

Updated MDP 3.0 Market Data Recovery IP and port and Production access to new 24/7 CME Globex CGW sessions availability dates.

April 16, 2026

• Added production environment availability date (May 3, 2026) for order entry service gateway (OESGW)

• Updated close and pre-open times for cryptocurrency and maintenance/trading schedules

April 13, 2026

Added the following information:

• CME ClearPort will support 24/7 trading

• Product Scope outlines products remaining on a 5-day trading schedule

• Information on UDS weekend trading and creation availability

April 9, 2026

Updated Maintenance and Trading Schedule, and Future Schedule times for the following market states; close, pause, pre-open, no-cancel, open

April 7, 2026

Updated availability date for Production Access to new 24/7 CME Globex Convenience Gateway (CGW) sessions to Sunday, May 3, 2026

March 31, 2026

Updated the New Settlements and Valuations Support section

March 25, 2026

• Added Settlement and Valuations Market Data Multicast Channel connection information

• Updated MDP Impact Summary - Settlements and Valuations to channel 247 with 24/7 availability and Key Events and Dates - added client request dates for CGW iLink and Drop Copy sessions

March 23, 2026

• Updated MDP 3.0 Market Data with affected channels and TCP Recovery IP and port connection details

• Added CGW iLink and Drop Copy IP and port ranges

March 20, 2026

Key Events and Dates - updated New Release launch to April 2, 2026 and Production Streamlined CME CF-Rates and Indexes channel to March 29, 2026

March 18, 2026

Order Entry Service Gateway - added production market segment gateway and convenience gateway connection details, including impact on 5 and 7 day trading clients

March 17, 2026

Updated the following sections:

• FirmSoft - removed reference for new required FirmSoft entitlements

• Credit and Risk Management - Added reference to the Cryptocurrency Futures and Options Expansion to 24/7 Trading Overview

• Production Streamlined CME CF-Rates and Indexes channel 214 availability date

March 11, 2026

Updated MDP 3.0 Security Definition flat file availability schedule

March 9, 2026

Updated FirmSoft weekend availability details

March 6, 2026

In section Straight Through Processing, added “Customers wanting to leverage STP for crypto 24/7 need to migrate to GCP connectivity, not available on-prem.”

Added to Key Events and Date: Sunday, March 15, 2026 - New Release Streamlined CME CF-Rates and Indexes channel 214 Launch

March 4, 2026

• Updated key event and date for MDP 3.0 Market Data Recovery IP and port update

• Added order entry service gateway network IP details

March 2, 2026

Clarified Network Connectivity Updates for Market Segment 74 and Production Network Connectivity Testing with connectivity testing details

February 25, 2026

Added the following information:

• Cryptocurrency Futures and Options Expansion to 24/7 Overview to Summary of Impacts

• MDP 3.0 Market Data Recovery IP and port update

February 25, 2026

Updated Key Events and Dates and Testing and Certification with additional information to test network connectivity

February 19, 2026

Updated daily maintenance security status from pause to close

February 18, 2026

Initial publication

Sunday, March 15, 2026

Network Connectivity Updates for Market Segment 74

Throughout the Segment 74 IP migration period, client systems may utilize heartbeat messages for connectivity testing every Saturday from 5:00 a.m. to 3:00 p.m. CT

Sunday, March 15, 2026

New Release Streamlined CME CF-Rates and Indexes channel 214 Launch

Sunday, March 29, 2026

Thursday, April 2, 2026

New Release Launch includes support for:

• Globex iLink, Drop Copy and Market Data.

• STP

• Streamlined Block Trades channel 235

• Reference Data API

• Streamlined CME CF-Rates and Indexes channel 214

Sunday, April 12, 2026

Clients can request new production CGW iLink and Drop Copy Globex sessions.

Sunday, May 3, 2026

• Production access to 7 day OESGW

• MDP 3.0 Market Data Recovery IP and port update

• Production access to new 24/7 CME Globex CGW sessions

Monday, May 11, 2026

The Globex Credit Controls (GC2) application will be updated to include weekend exposure limits. The default limit is zero (weekend trading is disabled). Clients intending to trade over the weekend must enable weekend trading and enter weekend limits.

Friday, May 29, 2026, starting at 4:00 p.m. CT

Production Launch

• CGW clients requiring weekend trading capabilities must migrate to the new 24/7 sessions

• Clients that want to trade during the weekend must migrate to the OESGW

Sunday

Sunday startup

-

4:00 to 5:00 p.m. CT

Monday through Friday

Daily Maintenance Window (with Trade Date roll)

4:00 to 4:45 p.m. CT

4:45 to 5:00 p.m. CT

Saturday

Extended Maintenance Window

Close: 2:00 a.m. to 3:45 a.m. CT

• Pre-open: 3:45 a.m. to 4:00 a.m. CT

• No cancel: 3:59:30 a.m. to 4:00:00 a.m. CT

• Open: 4:00 a.m. CT

Monday through Friday

Daily Maintenance Window (with Trade Date roll)

Close: 4:00:00 p.m. to 4:01:00 p.m. CT

• Pre-open: 4:01:00 p.m. to 4:01:30 p.m. CT

• No cancel: 4:01:30 p.m. to 4:02:00 p.m. CT

• Open: 4:02:00 p.m. CT

Friday, May 29, 2026

Day One Extended Maintenance

Close: 4:00 p.m. to 4:02 p.m. CT

• Pre-open: Following the Close and concluded with a 30 second No Cancel period.

• No cancel: 4:29:30 p.m. to 4:30:00 p.m. CT

• Open: 4:30 p.m. CT

Saturday

Extended Maintenance Window

Close: 2:00 a.m. to 3:45 a.m. CT

• Pause: 3:45:00 a.m. to 3:45:30 a.m. CT

• Pre-open: 3:45:30 a.m. to 3:59:30 a.m. CT

• No cancel: 3:59:30 a.m. to 4:00:00 a.m. CT

• Open: 4:00 a.m. CT

Monday through Friday

Daily Maintenance Window (with Trade Date roll)

Close: 3:00:00 p.m. to 3:01:00 p.m. CT

Pause: 3:01:00 p.m. to 3:01:30 p.m. CT

• Pause: 3:01:00 p.m. to 3:01:30 p.m. CT

• Pre-open: 3:01:30 p.m. to 3:04:30 p.m. CT

• No cancel: 3:04:30 p.m. to 3:05:00 p.m. CT

• Open: 3:05:00 p.m. to 4:01:00 p.m. CT

• Pause: 4:01:00 p.m. to 4:02:00 p.m. CT

• Open: 4:02:00 p.m. CT

Saturday

Extended Maintenance Window

Close: 2:00 a.m. to 3:45 a.m. CT

• Pre-open: 3:45:00 a.m. to 4:00:00 a.m. CT

• No cancel: 3:59:30 a.m. to 4:00:00 a.m. CT

• Open: 4:00 a.m. CT

Monday through Friday

Daily Maintenance Window (with Trade Date roll)

Close: 3:00:00 a.m. to 3:01:00 a.m. CT

• Pre-open: 3:01:00 a.m. to 3:04:30 a.m. CT

• No cancel: 3:04:30 a.m. to 3:05:00 a.m. CT

• Open: 3:05:00 a.m. to 4:01:00 p.m. CT

• Pre-open: 4:01:00 p.m. to 4:01:30 p.m. CT

• No cancel: 4:01:30 p.m. to 4:02:00 p.m. CT

• Open: 4:02:00 p.m. CT

Saturday

Extended Maintenance Window

Close: 2:00 a.m. to 3:45 a.m. CT

• Pre-open: 3:45:00 a.m. to 3:59:30 a.m. CT

• No cancel: 3:59:30 a.m. to 4:00:00 a.m. CT

• Open: 4:00 a.m. CT

Monday through Friday

Daily Maintenance Window (with Trade Date roll)

Close: 10:00:00 a.m. to 10:01:30 a.m. CT

• Pre-open: 10:01:30 a.m. to 10:04:30 a.m. CT

• No cancel: 10:04:30 a.m. to 10:05:00 a.m. CT

• Open: 10:05:00 a.m. to 4:01:00 p.m. CT

• Pre-open: 4:01:00 p.m. to 4:01:30 p.m. CT

• No cancel: 4:01:30 p.m. to 4:02:00 p.m. CT

• Open: 4:02:00 p.m. CT