Futures

As previously announced in the May 21, 2025 Alert, MIAX Futures is preparing for the migration of Minneapolis Hard Red Spring Wheat Futures from CME Globex to the new MIAX Futures Onyx Trading Platform on Sunday, June 29, 2025 (Trade Date: June 30, 2025).

New and Updated Resources:

1. MIAX Futures Onyx Risk Protections Guide and MIAX Futures Onyx User Manual are now available under Onyx Functionality 
2. Instrument Definition CSV Files and Instrument Record Layouts are now available under Onyx Listings
3. New MIAX Futures Onyx Product Settings
4. New MIAX Futures Onyx Holiday Trading Schedule
5. MIAX Futures has published updated Interface Specifications
   1. Futures Express Interface Specification (FEI) – Version 1.0c
      1. Fixed the ordering of fields in the Modify Order Notification message to reflect the actual messages.
      2. Note that the implementation has NOT changed and this was just a Specification fix
      3. Updated some cancel and reject reasons – see Revision History for details
   2. FIX Order Interface Specification (FOI) – Version 1.0c
      1. Additional details are included in the Execution Report
      2. Though these changes are not material, they are related to customer feedback
6. Updated MIAX Futures Onyx FAQs
7. Updated MIAX Futures Onyx Interface Specifications

Testing Dates:

1. Industry Testing is scheduled between 8:00 a.m. - 12:00 p.m. EDT on the following dates:
   1. Mock Trading Industry Test #2: Saturday, May 31, 2025
   2. Mock Trading Industry Test #3: Saturday, June 14, 2025
   3. Final Confidence Test: Saturday, June 28, 2025

Additional Resources:

1. The MIAX Futures Exchange Market Identifier Code (MIC) is XMGE
2. Connectivity to the Firm Test Bed is currently available
3. Firm Certifications are currently available by contacting MIAXFuturesTradingOperations@miaxglobal.com
4. Firms can request Production and DR Cross Connects by contacting MIAXFuturesTradingOperations@miaxglobal.com
   1. For pre-production readiness verification, the network and application layer connectivity testing to the MIAX Futures production environment will be available during trading hours by request beginning Monday, June 16, 2025 through Friday, June 30, 2025.
      1. Connectivity into the FOI, FEI and the FIX Drop interfaces will be provided via production credentials. The entering of test orders, among other supported message types, will be supported
      2. The dissemination of data across the production ToM and DoM multicast feeds will also be supported. Firms set up to read the market data feeds may receive test data during this time.
      3. As a precaution, the HRSW product will be halted immediately upon system startup. This disallows trades for this product, but will allow other message traffic to be supported for testing.
      4. During this period, MIAX Futures will create and utilize a test product, “TEST”, that will not be halted. Firms may receive data for this test product across the market data feeds, including trade messages. Firms are free to test with this test product while interacting with the FOI, FEI and FIX drop interfaces.
      5. Firms intending to utilize the production connectivity testing window MUST take necessary steps to avoid unintended data leakage into their production systems.  That is, firms MUST insulate their own production systems from this test data activity as needed. If this is not possible, firms MUST avoid establishing production connectivity during this time.
5. MIAX Futures Onyx Trading Connectivity Guide
6. Firms can request Market Data subscriptions via the MIAX Global Market Data Portal. For additional details visit Market Data & Vendor Agreements
7. MIAX Futures Onyx Platform Connectivity Fees 

Please visit the MIAX Futures Onyx Platform Information Hub for the most recent information on the new platform.

Additional updates will be provided through future Alerts.

For additional information on MIAX Futures, please contact MIAX Futures Trading Operations at MIAXFuturesTradingOperations@miaxglobal.com.

To revise a current MIAX Alert subscription or to register a new subscription, please visit MIAX Email Subscriptions.