Critical Updates

iLink SBE Schema Version 8 Decommission - April 24

On Sunday, February 22, CME Group completed the launch of iLink SBE Schema version 9 on all futures and options on futures market segments. CME Globex is now only sending version 9 messages for all futures and options on futures markets.

Client systems can send iLink messages using version 8 or 9 until the end of day Friday, April 24, after which only version 9 messages will be accepted.

MDP 3.0 TCP Recovery IP Update for Channels 326, 327 and 329 - April 26

Effective Sunday, April 26, CME Group will update the MDP 3.0 TCP Market Data Recovery IP and port for MDP 3.0 channels 326, 327 and 329.

View the Configuration and Connectivity Details page using your CME Group login for Production environment IP and port details.

Cryptocurrency Futures and Options Expansion to 24/7 Trading - May 29

Starting at 4:00 p.m. Central Time on Friday, May 29, CME Group will expand Cryptocurrency futures and options to 24/7 trading.

Cryptocurrency futures and options will trade continuously on CME Globex with at least a two-hour weekly maintenance period over the weekend. All holiday or weekend trading from Friday evening through Sunday evening will have a trade date of the following business day, with clearing, settlement and regulatory reporting processed the following business day as well.

A Cryptocurrency Futures and Options Expansion to 24/7 Overview is now available for high-level information on the initiative. Please review the 24/7 cryptocurrency client impact assessment for full technical analysis and comprehensive details.

Event-Based Contracts Expansion to 24/7 Trading - May 29

Starting at 4 p.m. Central Time on Friday, May 29, CME Group will expand event contracts to 24/7 trading, including event contracts on Bitcoin futures. The technology and timeline align with the upcoming Cryptocurrency futures and options migration to 24/7 trading.

Event contracts on Bitcoin futures will trade continuously on CME Globex with at least a two-hour weekly maintenance period over the weekend. All holiday or weekend trading from Friday evening through Sunday evening will have a trade date of the following business day, with clearing, settlement and regulatory reporting processed the following business day as well.

Please review the client impact assessment for full technical analysis and comprehensive details.

Globex Trade Date Behavior Change - June 19

Effective Friday, June 19, CME Group is implementing the following change to align CME Globex and CME Clearing trade dates when the Globex trade date falls on a Friday U.S. holiday.

All CME Globex futures and options trades executed on a Friday U.S. holiday will now reflect a Globex trade date to align with the next valid Clearing House trade date.

Please review the client impact assessment for full technical details and launch schedule.

iLink Mass Quote Protection Session Linking - Q2 2026

In Q2 2026, CME Group will introduce the new Mass Quote Protection (MQP) Session Linking functionality for all CME Globex options on futures. 

This enhancement provides comprehensive risk mitigation by allowing firms to link multiple iLink sessions under the same CME Globex Firm ID (GFID). When an MQP event is triggered, protection actions are automatically extended across all associated sessions within the linked group.

Please review the client impact assessment for full technical details, configuration rules, and launch schedule.

The new MQP Session Linking will be available in New Release for customer testing on this Thursday, April 2. 

Certification is not required to use the new MQP Session Linking functionality.

New Market Data Multicast Group - MDP 3.0 Channel ID 350 - Q2 2026

In Q2 2026, CME Group will launch a new market data multicast group to be used for a new CME Group product suite in the interest rate options asset class.

The new market data multicast group will use MDP 3.0 Channel ID 350. Additional details will be announced in future CME Globex notices.

Please use your CME Group login to review configuration details in the New Market Data Multicast Group - MDP 3.0 Channel ID 350 section of the Configuration and Connectivity Details page.

New Market Data Channel 335 for Equity Index and Alternative Product Launch - H1 2026

To support the expansion of the Equity Index and Alternative Products asset class, CME Group will launch a new market data multicast group in the first half of 2026.

This new multicast group will utilize Channel ID 335.

While the product launch is scheduled for 2026, we are providing these network specifications now to allow clients ample time to proactively manage firewall policies and network configurations.

UpdateSingle Stock Futures - 2026

† Denotes update to the article

In 2026, pending completion of all regulatory review periods, Single Stock Futures (SSF) for a select group of publicly listed companies will be listed for trading on CME Globex, and CME Direct trading application, and submission for clearing via CME ClearPort. 

With this launch a new Market Segment Gateway and Drop Copy Gateway Service will be introduced.

Please review the †client impact assessment for full technical details and launch schedules.

CME Globex on Google Cloud

Later this year, client testing will begin in the new CME Globex on Google Cloud Sandbox environment, located in the private Ultra Low Latency zones of the Google Cloud Dallas Region.

Detailed information is available in the Client Systems Wiki to ensure a smooth transition and successful onboarding. This content includes the detailed scope for client testing, a production readiness checklist, and the onboarding process.

Additional information will be published regularly and announced via the CME Globex Notices.

Position Reporting Under CFTC Part 17

On April 30, 2024, the Commodity Futures Trading Commission ("CFTC") approved final rules to amend its Large Trading Reporting Regulations for Futures and Options. The amendments were made to modernize CFTC's Large Trader Reporting process and align it with other reporting structures outlined in CFTC regulations.

Since October 2024, CME Group has offered methods to retrieve its instrument listing containing the Unique Instrument Code (UIC) and other instrument data elements in compliance with the amended rule.

Starting March 10, 2025, CME Group began accepting test files in the new Position Message FIXML format via SFTP. For details regarding submitting the new FIXML Position Message, file management, field validations, and example scenarios, please refer to the information in the CME Group Client Systems Wiki.

The Market Regulation Department will be publishing further guidance regarding Large Trader Reporting in subsequent Special Executive Reports as solutions become available.

CFTC's final rules became effective upon publication in the Federal Register on June 3, 2024. Reporting Firms must comply with the CFTC's final rules regarding Large Trader Reporting Requirements two years after publication in the Federal Register.

Product Launches

Event Contracts on International Soccer, Golf, Professional Basketball Combos, European Football, Elections and Professional Baseball Combos - Now Available

On Monday, March 30, event contracts on international soccer, golf, professional basketball combos, european football, elections and professional baseball combos were listed for trading on CME Globex.

These event contracts are currently available for customer testing in New Release.

NewRepo Funds Rate (RFR) USD in New Release - April 2

Effective Thursday April 2, CME Group Benchmark Administration Limited (CBA) will make Repo Funds Rate U.S. Dollar (RFR USD) available for customer testing in the New Release environment.

RFR USD provides a volume-weighted median rate based on overnight repo transactions using specific and general collateral on the U.S. BrokerTec Central Limit Orderbook (CLOB). The overall rate with supporting metrics is available for subscription and licensing on CME DataMine and on Market Data Platform 3.0 channel 261.

The rate will be published at approximately 3:30 p.m. Eastern Time (ET) on BrokerTec U.S. business days.

Repo Funds Rate (RFR) USD in New Release
INDEX NAME	BENCHMARK PREMIUM TAG 37500 - CLEARING PRODUCT CODE	MARKET DATA CHANNEL MDP 3.0 TAG 1180 - ApplID
CME Group RepoFunds Rate USD	RFUS	261

Early Listing of Euro/U.S. Dollar (EUR/USD) Futures Contract Month - April 6

Effective Monday, April 6 (trade date Tuesday, April 7), pending completion of all regulatory review periods, the August 2026 contract month for the following futures contract will be listed on CME Globex and CME ClearPort.

This contract month is currently available for customer testing in New Release.

This contract is listed with, and subject to, the rules and regulations of CME.

Listing Henry Hub versus Henry Hub Financial EU Seasonal Strip Spreads - April 12

Effective Sunday, April 12 (trade date Monday, April 13), Henry Hub Seasonal Strip spreads will be listed on CME Globex.

These spreads will be available for customer testing in New Release on this Sunday, April 5.

These contracts are listed with, and subject to, the rules and regulations of NYMEX.

Product Changes

NewEUR XCCY Futures Sunset - This Week

On Friday, March 27, all EUR XCCY futures contract months beyond September 2026 were sunset and no additional contract months will be listed. The listing rule has been amended as follows:

EUR XCCY Futures Sunset
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	CURRENT LISTING RULE	NEW LISTING RULE
EUR XCCY Futures	XEU	ZE	Quarterly contracts (Mar, Jun, Sep, Dec) listed for 4 consecutive quarters	June 2026 and September 2026 contracts only.

There is no open interest beyond the September 2026 contract months.

These contracts are listed with, and subject to, the rules and regulations of CME.

NewDelisting and Removal of PJM Futures and Options - This Week

On Monday, March 30, these PJM futures and options were delisted, and effective close of business this Friday, April 3, they will be removed from CME Globex.

These futures and options currently have no open interest.

Change to Strike Price Listing for Metals Options - April 12

Effective Sunday, April 12 (trade date Monday, April 13), the strike price listing rule will be changed for Metal options and will be listed for trading on CME Globex and for submission for clearing via CME ClearPort.

These options is currently available for customer testing in New Release.

These contracts are listed with, and subject to, the rules and regulations of COMEX and NYMEX.

Listing Cycle Expansion for FX Calendar Spreads - April 26

Effective Sunday, April 26 (trade date Monday, April 27), the listing cycle for the following FX Calendar spreads will be expanded on CME Globex.

These calendar spreads will be available for customer testing in New Release on this Sunday, April 5.

Additional calendar spreads with alternative construction are available to trade on CME Globex in these products. The listing schedule for these additional calendar spreads will be unchanged.

These contracts are listed with, and subject to, the rules and regulations of CME.

Change to Minimum Price Increment and Spread Type for U.S. Treasury 5 Year Note Futures Calendar Spread - April 26

Effective Sunday, April 26 (trade date Monday, April 27), pending the completion of all regulatory review periods, the following changes will be made to the 5 Year T-Note futures calendar spread:

• The minimum price fluctuation in tag 969-MinimumPriceIncrement on MDP 3.0 Security Definition (tag 35-MsgType= d).
• The strategy type in tag 762-SecuritySubType in the MDP 3.0 Security Definition message.
• Details on the spread type functionality are available in the CME Group Client Systems Wiki.

CHANGE TO MINIMUM PRICE INCREMENT AND SPREAD TYPE FOR U.S. TREASURY 5 YEAR NOTE CALENDAR SPREAD
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	CURRENT TAG 969-MINPRICEINCREMENT	NEW TAG 969-MINPRICEINCREMENT	CURRENT MDP3.0 TAG 762-SECURITYSUB  TYPE	NEW MDP3.0 TAG 762-SECURITYSUB  TYPE
Medium-Term U.S. Treasury Note Futures (5-Year) Calendar Spread	ZF	ZF	0.007812500	0.003906250	SP	RT

This change is currently available for customer testing in New Release.

These contracts are listed with, and subject to, the rules and regulations of CBOT.

Change to Minimum Price Increment for GBP/USD Calendar Spreads - April 26

Effective Sunday, April 26 (trade date Monday, April 27), the minimum price increment tag 969-MinPriceIncrement will be changed for the following.

Change to Minimum Price Increment for GBP/USD Calendar Spreads
Product	MDP 3.0: tag 6937-Asset	iLink/MDP 3.0 Tag 1151 - Security Group	MDP 3.0 tag 762-SecuritySubType	Current tag 969 - MinPriceIncrement	New tag 969 - MinPriceIncrement
British Pound Sterling/U.S. Dollar (GBP/USD) Futures Calendar Spread	6B	6B	SD	0.500000000	0.250000000

These spreads are currently available for customer testing in New Release.

These contracts are listed with, and subject to, the rules and regulations of CME.

Post Trade

UpdateCME STP FIX and FIXML - Truncation of Trailing Zeros in Specific Quantity Fields - April 26

† Denotes update to the article

†Effective Sunday, April 26 (trade date Monday, April 27), the trailing zeros will be truncated in the Unit of Measure Quantity and Trading Quantity fields in CME STP FIX and FIXML Trade Capture Reports. This truncation does not change the precision of these fields.

Product	STP Field	STP FIXML Attribute	STP FIX tag	Example Quantity values
				Current Quantity value	New Quantity Value
Futures and Options	Unit of Measure Quantity	/TrdCaptRpt/Instrmt/@UOMQty /TrdCaptRpt/TrdLeg/Leg/@UOMQty	1147-UnitofMeasureQuantity 1224-LegUnitofMeasureQuantity	100.00	100
	Trading Quantity	/TrdCaptRpt/@TrdgQty /TrdCaptRpt/TrdLeg/@TrdgQty	32-TradingQuantity 10038-LegTradingQuantity	22046.20	22046.2

This change is currently available for customer testing in New Release.

Events and Announcements

CME Globex Firm ID Excessive Messaging Threshold Modifications Per Second Addition - This Week

On Tuesday, March 31 (trade date Wednesday, April 1), in response to customer behavior specific to excessive order modification within product group SS (SOFR futures), the CME Globex Messaging Efficiency Program for CME Globex Firm IDs Excessive Messaging Threshold (EMT) was revised to include a Modifications Per Second (MPS) parameter of more than 2,000.

EMT MPS now tracks customer order modifications per second, by Globex Firm ID (GFID), within product group SS (SOFR futures). Additionally, CME Group also reserves the right at its discretion to aggregate CME Globex firms for purposes of determining whether product group SS-SOFR futures EMT GFID benchmark as part of the EMT MPS has been exceeded in circumstances where a single entity is sending in messages via more than one execution firm number. In such cases, CME Group will advise the participant accordingly. 

Each breach of this new MPS parameter (more than 2,000) will be eligible for a potential $5,000 surcharge.

Please refer to the CME Globex Messaging Efficiency Program for additional information. 

Contact the CME Global Command Center in the U.S. at +1 800 438 8616, in Europe at +44 20 7623 4747, in Japan: +81 3 6733 7559, and in Asia at +65 6532 5010, with any questions.

Market Integrity Control Changes for NYMEX and COMEX Energy and Metal Futures - This Week

Effective this Sunday, April 5 (trade date Monday, April 6), to ensure fair and efficient markets, Velocity Logic will be disabled during both the daily and final settlement windows for NYMEX and COMEX Energy and Metal futures.

The halt time if Dynamic Circuit Breakers are triggered during the settlement window will remain at five seconds.

NYMEX and COMEX Energy and Metal futures are listed on Market Segments 78 and 80 and distributed on MDP channels 360, 380, 382, 384 and 386.

Velocity Logic Reserved State Update - This Week

Effective this Sunday, April 5 (trade date Monday, April 6), the Reserved State duration triggered by a Velocity Logic event will be reduced from 10 seconds to five seconds during Extended Trading Hours (ETH). This change applies to all products with Velocity Logic enabled.

CME STP FIX on Google Cloud - Production Internet Connectivity Migration Deadline - April 26

As part of a phased migration of CME Straight Through Processing APIs to Google Cloud, Production internet connectivity options for CME STP FIX API are now available.

By Sunday, April 26, all clients must complete migration and connect to CME STP FIX API Production using only the Google Cloud hostnames.

CME STP FIX on Google Cloud is available in parallel to the current on-prem instance. When connecting in parallel to Google Cloud and on-prem instances, clients should ensure trades are not double-booked.

A mandatory supplemental certification for message recovery is now available for CME STP FIX on Google Cloud. 

Please contact Certification Support for Electronic Trading (CSET) with any questions in the U.S. at +1 312 930 2322, in Europe at +44 20 3379 3803, or in Asia at +65 6593 5593.

CME STP FIX on Google Cloud - Production Dedicated Connectivity Migration Deadline - April 26

As part of a phased migration of CME Straight Through Processing APIs to Google Cloud, Production dedicated connectivity options for CME STP FIX API are now available.

By Sunday, April 26, all clients must complete migration and connect to CME STP FIX API Production using only the Google Cloud hostnames.

CME STP FIX on Google Cloud is available in parallel to the current on-prem instance. When connecting in parallel to Google Cloud and on-prem instances, clients should ensure trades are not double-booked.

A mandatory supplemental certification for message recovery is now available for CME STP FIX on Google Cloud. 

Please contact Certification Support for Electronic Trading (CSET) with any questions in the U.S. at +1 312 930 2322, in Europe at +44 20 3379 3803, or in Asia at +65 6593 5593.

CME Globex Connectivity Upgrades and Changes for Listed Derivative Markets - June 27

In response to client feedback and to provide firms with additional time to prepare, CME Group extended the deadline for the previously announced network equipment upgrades.

Starting Saturday, June 27, CME Group plans to replace End-of-Life network equipment that supports listed derivatives connectivity at CME Globex Hubs. Customers will be notified in advance if they are impacted by an equipment upgrade.

CME Globex market data for listed derivatives now regularly exceeds 1Gbps, increasing the risk of packet loss, performance concerns, and quality of service degradations on 1Gbps connections.

Impact on 1Gbps Listed Derivatives Connections

• Multicast Market Data: Effective June 27, 1Gbps services will no longer support MDP 3.0 multicast market data.
• Existing 1Gbps Customers with Market Data: Customers with 1Gbps service currently listening to multicast market data are encouraged to upgrade connections to 10Gbps as soon as possible.
• Existing 1Gbps Customers without Market Data: Unicast services such as iLink, Drop Copy, STP, MQ and others will continue to be supported on 1Gbps connections. Customers with 1Gbps connectivity who are not receiving Market Data will have their service migrated to the new equipment.
• New 1Gbps Connections: New connections for 1Gbps service do not support access to listed derivatives multicast market data.

Copper Handoffs

• When the CME Globex Connectivity upgrades are rolled out in 2026, CME Group will no longer support copper handoffs.

Additional details about the CME Globex Connectivity upgrades will be announced in future CME Globex Notices.

Please contact your Global Account Manager for additional information.

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