For the latest roadmap of CME Group technology initiatives:
See the Development Launch Schedule.

Critical Updates

NewUpdate on Order Routing and Front-End Audit Trail Requirements for iLink 3

As part of the iLink 3 migration, the following rules for an audit trail certification apply:

• All customer systems using Audit Trail 2.x CSV or FIX formats will be required to certify for Audit Trail 3.x CSV or FIX formats.
• Any certified Audit Trail 3.x CSV or FIX system that is not adding new functionality will not be required to recertify their audit trail system.
• Any certified Audit Trail 3.x CSV or FIX system that is adding new functionality or changes its Administrative Information Registration (On Demand or Pre-Registered) will be required to recertify their audit trail system.
• A new iLink 3.x CGW Order Entry System can be associated to an existing certified Audit Trail 3.x CSV or FIX system.

Once you have completed certification of the Order Entry system, please contact the Market Regulation Audit Trail Team to create a profile for audit trail testing.

More information regarding the iLink 3 audit trail test suite can be found at:

• iLink 3 - Minimum Acceptable Audit Trail Elements - Data Definitions and Validation Rules
• AutoCert+ Audit Trail for iLink 3 User Manual

Only after your Order Entry is certified, please complete the questionnaire so an audit trail profile can be created.

UpdateCME Globex Performance Enhancements - This Week

† Denotes update to the article

Starting this Sunday, January 28 (trade date Monday, January 29), CME Globex will implement internal changes to CME Equity options - S&P options, NYMEX Emissions options, NYMEX Energy, Metals, Softs, and Alternative Markets options, COMEX options, and DME options. † Changes will be made to CME Crypto futures and options and Event Contracts February 4.

These changes will have no functional or messaging impacts to client gateways. In internal testing, these changes improved performance on CME Globex more than 10%. The plan to apply these changes to other markets will be published in future CME Globex Notices.

Market Segment ID	Market Segment Description	Performance Enhancement Date
54	CME Equity Options - S&P Options	January 28
56	NYMEX Emissions Options; NYMEX Energy, Metals, Softs and Alternative Markets Options; COMEX Options; DME Options
74	CME Crypto Futures and Options; Event Contracts	† February 4

iLink 3 Party Details Harmonization - This Week

Effective this Sunday, January 28 (trade date Monday, January 29), CME Group will implement the iLink 3 messaging changes to Pre-Registered administrative information to be consistent with the On-Demand administrative information. These changes will also bring the front-end messaging into alignment with the back-office feeds and simplify the reconciliation process.

Field Capitalization

CME Globex will capitalize tag 1691-PartyDetaiID values on the following Party Detail Roles on the Pre-Registered Party Detail Definition Request Acknowledgment messages sent from Order Entry Service Gateway to Client System. Client systems are not required to send capitalized values to CME Globex, but capitalized values will always be returned.

iLink 3 Party Details Definition Request Acknowledgment (tag 35=CY)
Tag 1693 - Party Detail Role	Current Submitted/Return tag 1691-PartyDetailID Value Behavior	New Return tag 1691-PartyDetailID Value Behavior
24 (customer account) 1000 (take up account)	aBcde	ABCDE

Field Truncation

CME Group will truncate tag 1691-PartyDetaiID values on the following Party Detail Roles on the Pre-Registered Party Details Definition Request Acknowledgment messages sent from Order Entry Service Gateway to Client System. If this tag values submitted on the Party Details Definition Request message exceeds the required length, iLink 3 will return a truncated required length from the right on the response.

iLink 3 Party Details Definition Request Acknowledgment (tag 35=CY)
Tag 1693 - Party Detail Role	Required Length	Current Submitted/Return tag 1691-PartyDetailID Value Behavior	New Return tag 1691-PartyDetailID Value Behavior
24 (customer account)	12	1234567890987Account	90987ACCOUNT
1000 (take up account)	11	1234567890987Account	0987ACCOUNT
96 (take up firm)	3	10f23	f23

These changes are only applicable to the Pre-Registered administrative information. There is no change to the On-Demand Party Detail Definition Request Acknowledgment (tag 35=CY) messages sent from Market Segment Gateway to Client System.

More detailed information on Party Details is available in iLink 3 Party Details Definition Messaging.

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

Mandatory Migration - iLink 3 Binary Order Entry Protocol for CGW - This Week

CME Group is introducing iLink 3 on Convenience Gateways (CGW) for trading futures and options on CME Globex. The iLink 3 protocol will launch on the existing CGWs this Sunday, January 28 (trade date Monday, January 29). All customers connected via CGW will need to migrate to iLink 3 by December 31, 2024.

iLink 3 includes:

• Simple Binary Encoding (SBE) for faster message encoding and decoding
• A simple, lightweight, point-to-point session layer protocol using FIX Performance (FIXP)
• More efficient iLink FIX messaging
• Standard message size, fixed positions, and fixed length fields
• A consistent encoding method for order entry and market data

The Client Impact Assessment is available and provides detailed functionality and messaging information.

Based on customer feedback and to better align with iLink 2 CGW, Cancel on Disconnect (COD) will be optional functionality for all iLink 3 CGW sessions. Customers will be able to request COD functionality to be disabled or enabled in:

• New Release – Now available
• Production – Now available

Please note that all iLink 3 CGW sessions will be created with COD enabled. Clearing Firm Administrators can disable COD functionality by entering the change request via Firm Admin Dashboard (FADB).

iLink 3 on CGW is currently available in New Release for customer testing.

AutoCert+ certification is required for all client systems using CGWs.

• Now Available – iLink 3 CGW functionality available in New Release and AutoCert+ certification  
• Now Available - The OESGW configuration information (i.e. OESGWs and IPs) for CGWs will be added to the production config.xml file via an SFTP site (sftpng.cmegroup.com). 
• January 27 - iLink 3 CGW Saturday Mock Trading session
• January 28 –  Production launch of iLink 3 on CGW
• December 31, 2024 – Deadline for customer migration
• January 31, 2025 - iLink 2 on CGW Decommission

To participate in the mock trading sessions please register and view the mock trading script.

Please contact your Global Account Manager for additional information.

Drop Copy Impacts - Mandatory iLink 3 Binary Order Entry Protocol for Convenience Gateway - This Week

On this Sunday, January 28 (trade date Monday, January 29), CME Group will launch the iLink 3 protocol on existing Convenience Gateways (CGW) for trading futures and options on CME Globex. All customers connected via Convenient Gateway (CGW) are encouraged to migrate to iLink 3 as early as possible prior to the iLink 2 decommission. Key events and dates are available.

Impacts of mandatory iLink 3 Binary Order Entry protocol for Convenience Gateway on Drop Copy Convenience Gateway target sessions.

• Message encoding: The Drop Copy encapsulated XML Non-Fix (tag 35-MsgType=n) Message payload sent from iLink 3 source sessions will be in ASCII format.
  • Message payload mapping conforming to the iLink 3 formats and encoding will feature deprecated message tags, additional tags and enumerations for order entry, clearing and regulatory compliance messaging specifications.
  • A summary of ASCII encoded tags with their equivalent values in Simple Binary Encoding tags and enumerations is available.
• Target Session: Current Drop Copy CGW target session users do not need to request new target sessions although upon requesting the mandatory iLink 3 source session, a new target session may be automatically created to accommodate iLink order entry infrastructure load balancing and optimization considerations. Customers are requested to check for new automatically generated Drop Copy CGW target sessions.
• Parallel period: During the parallel period which runs until December 31, 2024, CME Globex will support Drop Copy target sessions connected to both iLink 2 and iLink 3 CGW sessions. When iLink 2 is decommissioned on December 31, 2024, any Drop Copy target sessions with iLink 2 sessions only will be removed from the platform.
• AutoCert+ Certification: Certification is not required for existing Drop Copy CGW session users.

Please review Mandatory iLink 3 Binary Order Entry Protocol for CGW for additional details.

UpdateGLink Network Infrastructure Upgrade in Aurora - February 3

† Denotes update to the article

The GLink Network Infrastructure Upgrade in Aurora will take place Saturday, February 3, *subject to testing results. This network upgrade consists of:

• Replacement of the existing end of life (EOL) Juniper switches with new Arista switches which will use new customer ports and new CME Group IP addresses
• Assignment of new GLink SiteIDs and Point-to-Point IPs by CME Group
• Customers are required to reuse their original Juniper customer source IP addresses
• Introduction of a new GLink Demarc Cable providing customers with equidistant connectivity to any rack unit (RU) in their cabinet

To ensure stability for our customers prior to launch, CME Group has instituted a full freeze. The freeze includes: move, add, change, and provision requests, and will last †at least until after February 2024. Juniper GLinks can no longer be ordered. Customers will be able to place orders for new GLinks on the Arista network during the freeze. Orders received during the freeze will be provisioned and activated in the order they were received after the launch.

The expanded Arista network will provide additional capacity to support future growth.  

In addition, the new GLink Demarc Cable will allow customers to optimize their CME Co-Location Licensed Space. CME Group has installed GLink Demarc Cables into customers' cabinets. The customer self-testing phase began January 12 and runs through † Friday, February 2. For more information on customer self-testing see the Client System Impact.

Please note that the Arista GLink network will not be live prior to customer self-test.

The launch of the new GLink network will happen over three weekends: two mock test weekends (both A and B ports can be tested each weekend) followed by the Go-Live weekend. Customer mock testing will be done on the Saturdays prior to the new network going live. To participate in the Saturday January 27, mock trading session, please register.

CME Group will open a conference bridge to support customers during the Saturday mock testing session. The conference bridge will be staffed from 8:00 a.m. to 12:00 p.m. CT. Please join by phone (US) +1 518 749 0506, PIN: 829684123.

† Please review the Client System Impact for updated Mock schedule and testing recommendations for the final mock trading session on Saturday, January 27.

An updated Client System Impact, with general dates and updated technical specifications, is now available. For questions or to discuss available migration options, please contact Global Account Management.

Please Note: If additional testing is required, the GLink Network Infrastructure Upgrade in Aurora will take place Saturday, February 10.

Co-location Visitors Traffic During Mock Testing 

In anticipation of heavy visitor and badge access traffic on mock test weekends, CME Group asks all customers to do the following to reduce the wait time for gaining access to both the front gate and data halls: 

1. Pre-register your visitors as soon as possible to speed up the badging process.
2. Utilize either the East gate off Eola or the North gate off Diehl to access the parking lot. Please be sure all occupants of the vehicle have been listed on a visitor request or have their C1 badges (carpooling is encouraged where possible).
3. All visitors must have a government issued photo ID to get through security and obtain a visitor badge.
4. Visitors must be escorted throughout their visit.
5. Please allow extra time upon arrival to get through security, testing opens at 8:00 a.m. CT.

Cash Settled Commodities Indices Available via CME Benchmark Administration Premium - February 4

Effective Sunday, February 4 (trade date Monday, February 5), CME Group will launch the Cash Settled Commodities Indices, as shown in the table below, on CME Benchmark Administration Premium. The messages for these indices will be sent on the Benchmark Administration Premium Simple Binary Encoding (SBE) Multicast channel ID 261 via SBE template MDIncrementalRefreshSettle401 same as the Petroleum Indices.

With this launch, the ITC Category Code Y - Cash Prices messages for these indices will be decommissioned effective Sunday, October 27 (trade date Monday, October 28).

Index Name	Market	Current ITC Ticker	Current ITC Channel	Future SBE Ticker (tag 55- Symbol)	Future SBE Channel ID
Fresh Bacon Index	CME	IB	3	IBX	261
Lean Hog Index	CME	IH	3	IHX	261
Pork Cutout Index	CME	IJ	3	IJX	261
Boxed Beef Index	CME	IM	3	IMX	261

Please Note: The Feeder Cattle Composite Index (ICX) will continue to be sent via ITC Category Code Y - Cash Prices message.

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

iLink 3 Mass Quote Cancellation Change - February 25

Starting Sunday, February 25 (trade date Monday, February 26), CME Globex will implement an enhancement to the iLink 3 Mass Quote Cancellation for Market Segment Gateway (MSGW) sessions. Convenience Gateway (CGW) sessions are not impacted by this launch.

With this change, CME Globex will reject any Quote Cancel All (tag 35-MsgType =Z and tag 298-QuoteCancelType=4) message from a MSGW session not permissioned to quote any product group for the MarketSegmentID on which Quote Cancel All request was initiated. The Quote Cancel Reject (tag 35-MsgType=b and tag 297-QuoteStatus=5) message will include tag 300-QuoteRejectReason=9 (Not authorized to quote security) and tag 58-Text = Quote rejected: Not authorized to quote any group. Currently, CME Globex does not respond back to a Quote Cancel All request from a MSGW session not permissioned to quote any product group.

Market Segment ID	Description	Production Launch
50	CME Interest Rate Options	February 25
52	CME FX Options
72	CBOT and CME Equity Options; excluding S&
54	CME Equity Options - S&P Options	March 3
56	NYMEX Emissions Options; NYMEX Energy, Metals, Softs and Alternative Markets Options; COMEX Options; DME Options
58	CBOT Interest Rate Options
60	MGEX Commodity Options Bursa Malaysia Futures and Options
74	CME Crypto Futures and Options; Event Contracts

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

CME Globex Order Entry Web Service APIs - Q1 2024

Clients now have access to CME Group futures and options on the new Order Entry Suite of APIs - Hosted by Google Cloud.

This solution is accessible over the public internet without the commitment of leased line or co-location investments. RESTful and WebSocket APIs with full order routing and instrument creation functionality deliver real-time trading and market exposure insight. This lightweight product is optimized for the needs of less latency sensitive traders and algorithms, while still offering fulsome functionality and utilizing the full suite of CME Globex risk and credit controls.

The OE APIs are made up of two Web Service APIs: RESTful and WebSocket. These APIs support:

• Order Submission and Modifications
• Strategy Creation (UDS) and Request for Quotes (RFQ) Capabilities
• Order and Trade Status Request

Please review the Client Impact Assessment for full technical details and launch schedule.

This solution is currently available in the New Release environment; a production date will be announced in future notices.

Product Launches

Listing LNG Freight Futures (Baltic) Based on the Larger 174,000 Cubic Meter Vessel Size - This Week

Effective this Sunday, January 28 (trade date Monday, January 29), pending completion of all regulatory review periods, these LNG Freight futures (Baltic) based on the larger 174,000 cubic meter vessel size will be listed for trading on CME Globex and for submission for clearing via CME ClearPort.

Listing LNG Freight Futures (Baltic) based on the larger 174,000 cubic meter vessel size
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	MARKET DATA CHANNEL MDP 3.0 TAG 1180 - ApplID
LNG Freight Route Australia to Japan RV (BLNG1-174) (Baltic) Futures	BG1	FT	386
LNG Freight Route US Gulf to Continent RV (BLNG2-174) (Baltic) Futures	BG2	FT	386
LNG Freight Route US Gulf to Japan RV (BLNG3-174) (Baltic) Futures	BG3	FT	386

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

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

Listing S&P 500 Annual Dividend Options - This Week

Effective this Sunday, January 28 (trade date Monday, January 29), pending completion of all regulatory review periods, S&P 500 Annual Dividend options will be listed for trading on CME Globex and for submission for clearing via CME ClearPort.

Listing S&P 500 Annual Dividend Options
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 – SECURITY GROUP	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 – SECURITY GROUP (UDS)	MARKET DATA CHANNEL MDP 3.0 TAG 1180 – ApplID
S&P 500 Annual Dividend Options	SDA	1S	3S	311

The variable minimum tick increment for S&P 500 Annual Dividend options will be as follows:

VARIABLE TICK TABLE INDEX CODE	CME GLOBEX PRICE	CME GLOBEX TICK SIZE
16	-5000 ≤ P ≤ 5000	25
16	P < -5000	50
16	P > 5000	50

The Variable Tick Table (VTT) values are defined in the instrument’s Security Definition Message (tag 35-MsgType=d) in tag 6350-TickRule tick table value as described on the Client Systems Wiki.

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

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

NewListing Additional €STR Strategies - February 25

Effective Sunday, February 25 (trade date Monday, February 26),  additional strategy types will be listed for Euro Short-Term Rate (€STR) futures on CME Globex as follows.

• Average Price Bundles
• Balanced Strip Spreads

Listing additional €STR Strategies
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Tag 762- SecuritySubType	Listings
Euro Short-Term Rate (€STR) Futures	ESR	EY	AB – Average Price Bundle	4-consecutive month spreads for all quarterly contract months 8-consecutive month spreads for all quarterly contract months 12-consecutive month spreads for all quarterly contract months
			SB – Balanced Strip Spread	All 4-Month vs. 4-Month AB Spreads

Commonly known as Packs and Bundles, these strategies offer the advantage of being transactable at a single price or value, eliminating the need to enter multiple orders for each contract and the possibility that orders may go unfilled.

These strategies will be available for customer testing in New Release on Monday, February 5.

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

NewMicro Japanese Yen/US Dollar (JPY/USD) Futures - February 25

Effective Sunday, February 25 (trade date Monday, February 26), pending completion of all regulatory review periods, Micro Japanese Yen/US Dollar futures will be listed for trading on CME Globex and for submission for clearing via CME ClearPort.

Micro Japanese Yen/US Dollar (JPY/USD) Futures
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	MARKET DATA CHANNEL MDP 3.0 TAG 1180 - ApplID
Micro Japanese Yen/US Dollar (JPY/USD) Futures	MJY	6J	314

These futures will be available for customer testing in New Release on Monday, February 5.

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

Enable Implied Functionality for Eris Calendar Spreads - February 25

Effective Sunday, February 25 (trade date Monday, February 26), pending completion of all regulatory review periods, implied functionality for the following Eris Spreads will be enabled on CME Globex.

ENABLE IMPLIED FUNCTIONALITY FOR ERIS Calendar Spreads
PRODUCT	MDP 3.0: TAG 6947-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	TAG 762-SECURITYSUBTYPE
1-Year Eris SOFR Swap Futures	YIA	EB	SP - Standard Calendar Spread
2-Year Eris SOFR Swap Futures	YIT	EB	SP - Standard Calendar Spread
3-Year Eris SOFR Swap Futures	YIC	EB	RT - Reduced Tick
4-Year Eris SOFR Swap Futures	YID	EB	RT - Reduced Tick
5-Year Eris SOFR Swap Futures	YIW	EB	RT - Reduced Tick
7-Year Eris SOFR Swap Futures	YIB	EJ	RT - Reduced Tick
10-Year Eris SOFR Swap Futures	YIY	EJ	RT - Reduced Tick
12-Year Eris SOFR Swap Futures	YII	EJ	RT - Reduced Tick
15-Year Eris SOFR Swap Futures	YIL	EK	RT - Reduced Tick
20-Year Eris SOFR Swap Futures	YIO	EK	RT - Reduced Tick
30-Year Eris SOFR Swap Futures	YIE	EK	RT - Reduced Tick

Implied eligible instruments, are identified in the MDP 3.0 Security Definition (tag 35-MsgType=d), in repeating group tag 871-InstAttribType:

• tag 872-InstAttribValue= 19: Implied Matching Eligibility

This change will be available for customer testing in New Release on Monday, February 19.

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

Enable Implied Functionality for TBA-UST Spreads - March 17

Effective Sunday, March 17 (trade date Monday, March 18), pending completion of all regulatory review periods, implied functionality for the following TBA-UST Spreads will be enabled on CME Globex.

ENABLE IMPLIED FUNCTIONALITY FOR TBA-UST Spreads
PRODUCT	MDP 3.0: TAG 6947-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	TAG 762-SECURITYSUBTYPE
30-Year UMBS TBA Futures - 2.0% Coupon Spread to 10-Year Note Futures	UPN	IV	IV - Implied Intercommodity Spread
30-Year UMBS TBA Futures - 2.5% Coupon Spread to 10-Year Note Future	UQN	IV	IV - Implied Intercommodity Spread
30-Year UMBS TBA Futures - 3.0% Coupon Spread to 10-Year Note Future	URN	IV	IV - Implied Intercommodity Spread
30-Year UMBS TBA Futures - 3.5% Coupon Spread to 10-Year Note Future	UTN	IV	IV - Implied Intercommodity Spread
30-Year UMBS TBA Futures - 4.0% Coupon Spread to 10-Year Note Future	UUN	IV	IV - Implied Intercommodity Spread
30-Year UMBS TBA Futures - 4.5% Coupon Spread to 10-Year Note Future	NTU	IV	IV - Implied Intercommodity Spread
30-Year UMBS TBA Futures - 5.0% Coupon Spread to 10-Year Note Future	THN	IV	IV - Implied Intercommodity Spread
30-Year UMBS TBA Futures - 5.5% Coupon Spread to 10-Year Note Future	UVN	IV	IV - Implied Intercommodity Spread
30-Year UMBS TBA Futures - 6.0% Coupon Spread to 10-Year Note Future	UWN	IV	IV - Implied Intercommodity Spread
30-Year UMBS TBA Futures - 6.5% Coupon Spread to 10-Year Note Future	UYN	IV	IV - Implied Intercommodity Spread

Implied eligible instruments, are identified in the MDP 3.0 Security Definition (tag 35-MsgType=d), in repeating group tag 871-InstAttribType:

• tag 872-InstAttribValue= 19: Implied Matching Eligibility

This change will be available for customer testing in New Release on Monday, February 26.

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

Bursa Malaysia DCE Soybean Oil Futures - March 17

Effective Sunday, March 17 (trade date Monday, March 18), subject to receipt of regulatory approval prior to such date, the Bursa Malaysia DCE Soybean Oil futures and spreads will be made available for trading on CME Globex.

Bursa Malaysia Derivatives (BMD) DCE Soybean Oil Futures
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	MARKET DATA CHANNEL
Bursa Malaysia DCE Soybean Oil Futures	FSOY	B0	430

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

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

Product Changes

Changes to Event Contracts on CME Globex - This Week

Effective this Sunday, January 28 (trade date Monday, January 29), pending completion of all regulatory review periods, Event Contracts will be amended as follows on CME Globex:

• Change to Unit of Measure
• Change to Minimum Price Increment
• Change to fixed Payout

Changes to Event Contracts on CME Globex
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	Current Tag 1147 - UNITOFMEASUREQTY	NEW Tag 1147 - UNITOFMeASUREQTY	Current MDP 3.0: Tag 969 - MINPRICEINCREMENT	NEW MDP 3.0: Tag 969 - MINPRICEINCREMENT
Event Contracts on E-mini S&P 500 Futures	ECES	VE	20	100	25	100
Event Contracts on E-mini Nasdaq-100 Futures	ECNQ	VN	20	100	25	100
Event Contracts on E-mini Russell 2000 Futures	ECRTY	VR	20	100	25	100
Event Contracts on E-mini Dow Jones Industrial Average Futures	ECYM	VM	20	100	25	100
Event Contracts on Euro/U.S. Dollar (EUR/USD) Futures	EC6E	V6	20	100	25	100
Event Contracts on Gold Futures	ECGC	VG	20	100	25	100
Event Contracts on Silver Futures	ECSI	VS	20	100	25	100
Event Contracts on Copper Futures	ECHG	VH	20	100	25	100
Event Contracts on Light Sweet Crude Oil Futures	ECCL	VC	20	100	25	100
Event Contracts on Henry Hub Natural Gas Futures	ECNG	VA	20	100	25	100
Event Contracts on Bitcoin Futures	ECBTC	VB	20	100	25	100

With these changes, the Event Contract fixed payout will be amended from $20 to $100.

Additional information can be referenced in SER 9307.

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

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

Changes to Listing Schedule and Strike Listing for Event Contracts on CME Globex - This Week

Effective this Sunday, January 28 (trade date Monday, January 29), pending completion of all regulatory review periods, Event Contracts will be amended as follows on CME Globex:

• Change to Listing Schedule
• Change to Strike Price Listing

Changes to Listing Schedule and Strike Listing for Event Contracts on CME Globex
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	Current Listing Schedule	New Listing Schedule	Current Strike Price Listing	New Strike Price Listing
Event Contracts on E-mini S&P 500 Futures	ECES	VE	One 0 DTE Event Contract listed at any time	One 0 DTE Event Contract. One Event Contract expiring on the last business day of Mar, Jun, or Sep. One Event Contract expiring on the last business day of the calendar year.	10 strikes at $10.00 increment above and below the at-the-money strike, then 2 strikes at $25.00 increment above and below the highest and lowest $10.00 increment strike, then 2 strikes at $50.00 increment above and below the highest and lowest $25.00 increment strike. Upon demand and at the discretion of the exchange, additional strikes added in $10.00 and $25.00 increments.	Strikes listed for 20% above the at-the-money strike and 25% below the at-the-money strike at 100 index point increments. When less than 66 days remain until expiration (DTE), additional strikes listed for 10% above the at-the-money strike and 15% below the at-the-money strike at 50 index point increments. When less than 14 days remain until expiration (DTE), additional strikes listed for 5% above the at-the-money strike and 10% below the at-the-money strike at 25 index point increments. When less than 7 days remain until expiration (DTE), additional strikes listed for 2% above the at-the-money strike and 4% below the at-the-money strike at 10 index point increments. Additional strikes may be listed for trading, and strikes scheduled to be listed for trading may be suspended at the sole discretion of the Exchange.
Event Contracts on E-mini Nasdaq-100 Futures	ECNQ	VN	One 0 DTE Event Contract listed at any time	One 0 DTE Event Contract. One Event Contract expiring on the last business day of Mar, Jun, or Sep. One Event Contract expiring on the last business day of the calendar year.	10 strikes at $50.00 increment above and below the at-the-money strike, then 2 strikes at $100.00 increment above and below the highest and lowest $50.00 increment strike, then 2 strikes at $250.00 increment above and below the highest and lowest $100.00 increment strike. Upon demand and at the discretion of the exchange, additional strikes added in $50.00 increments.	Strikes listed for 20% above the at-the-money strike and 25% below the at-the-money strike at 500 index point increments. When less than 66 days remain until expiration (DTE), additional strikes listed for 10% above the at-the-money strike and 15% below the at-the-money strike at 250 index point increments. When less than 14 days remain until expiration (DTE), additional strikes listed for 5% above the at-the-money strike and 10% below the at-the-money strike at 100 index point increments. When less than 7 days remain until expiration (DTE), additional strikes listed for 2% above the at-the-money strike and 4% below the at-the-money strike at 10 index point increments. Additional strikes may be listed for trading, and strikes scheduled to be listed for trading may be suspended at the sole discretion of the Exchange.

With these changes, the futures Syntheic Listing Cycle will be amended as follows on CME Globex:

Changes to Futures Synthetic Listing Cycle
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	Current Listing Cycle	NEW Listing Cycle
E-mini S&P 500 Futures Synthetic	ECES	0C	2 Quarterly Months	5 Quarterly Months
E-mini Nasdaq-100 Futures Synthetic	ECNQ

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

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

Listing Cycle Expansion for Light Sweet Crude Oil vs. Brent Last Day Financial Futures IP Spread - This Week

Effective this Sunday, January 28 (trade date Monday, January 29), the listing cycle for the following CL vs. BZ IP spreads will be expanded on CME Globex.

Listing Cycle Expansion for Light Sweet Crude Oil vs. Brent Last Day Financial Futures IP Spread
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Current Listing Schedule	New Listing Schedule
Light Sweet Crude Oil/Brent Last Day Financial Futures vs. Light Sweet Crude Oil/Brent Last Day Financial Futures (deferred)	CL	IE	All 1-month calendar spreads for months 1-12 1 Mar, 1 Jun & 1 Sep spread separated by 3 months 1 Jun & 1 Dec spread separated by 6 months 1 Jun & 1 Dec spread separated by 12 months	All calendar spreads combinations for months 1-13 1 Jun & 1 Dec spread separated by 6 months 1 Jun & 1 Dec spread separated by 12 months

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

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

Listing Cycle Expansion for Molybdenum Oxide (Fastmarkets) Futures - This Week

Effective this Sunday, January 28 (trade date Monday, January 29), the listing cycle for the following Molybdenum Oxide (Fastmarkets) futures will be expanded on CME Globex.

Listing Cycle Expansion for Molybdenum Oxide (Fastmarkets) Futures
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Current Listing Schedule	New Listing Schedule
Molybdenum Oxide (Fastmarkets) Futures	MOX	MU	Monthly expiries for the current year and the next calendar year.	Monthly expiries for the current year and the next 2 calendar years.

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

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

Listing Cycle Expansion for HTT vs. WTT Inter-Commodity Strip Spreads - This Week

Effective this Sunday, January 28 (trade date Monday, January 29), the listing cycle for the following HTT vs. WTT Inter-Commodity Strip Spreads will be expanded on CME Globex.

Listing Cycle Expansion for HTT vs. WTT Inter-Commodity Strip Spreads
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Current Listing Schedule	New Listing Schedule
WTI Houston (Argus) vs. WTI Trade Month Futures (HTT) / WTI Midland (Argus) vs. WTI Trade Month Futures (WTT)	HTT	CC	1 3-leg Q1 Strip Spread 1 3-leg Q2 Strip Spread 1 3-leg Q3 Strip Spread 1 3-leg Q4 Strip Spread	1 3-leg Q1 Strip Spread 1 3-leg Q2 Strip Spread 1 3-leg Q3 Strip Spread 1 3-leg Q4 Strip Spread 2 6-leg Jan half-yearly strip spreads 2 6-leg Jul half-yearly strip spreads 2 12-leg yearly strip spreads

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

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

Renaming Micro Yield Futures - February 4

Effective Sunday, February 4 (trade date Monday, February 5), the Micro Yield futures will be renamed to Yield futures.

Renaming Micro Yield Futures
Current Product Name	New Product Name	iLink: tag 1151-Security Group MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group
Micro 2-Year Yield Futures	2-Year Yield Futures	2YY	2Y
Micro 5-Year Yield Futures	5-Year Yield Futures	5YY	5Y
Micro 10-Year Yield Futures	10-Year Yield Futures	10Y	4Y
Micro 30-Year Yield Futures	30-Year Yield Futures	30Y	6Y

Please Note: No changes are being made to the contract specifications.

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

Change to Maximum Order Quantity for Brazilian Real/US Dollar (BRL/USD) Futures - February 11

Effective Sunday, February 11 (trade date Monday, February 12), the maximum order quantity for Brazilian Real/US Dollar (BRL/USD) futures and related spreads will be changed as follows:

Change to Maximum Order Quantity for Brazilian Real/U.S. Dollar (BRL/USD) Futures
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Current tag 1140-MaxTradeVol	New tag 1140-MaxTradeVol
Brazilian Real/U.S. Dollar (BRL/USD) Futures	6L	6L	2500	5000

Please Note: No GTD/GTC orders will be cancelled.

This change will be made available for customer testing in New Release on Monday, January 29.

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

Events and Announcements

CME Group Settlement File and Daily Bulletin Modifications - April 1

To ensure client readiness for the changes to CME Group Settlement Files and Daily Bulletin, the decommission of the following folders has been postponed until Monday, April 1.

• https://www.cmegroup.com/ftp/settle/
• https://www.cmegroup.com/ftp/bulletin
• https://www.cmegroup.com/ftp/pub/settle/
• https://www.cmegroup.com/ftp/pub/bulletin
• ftp.cmegroup.com/settle
• ftp.cmegroup.com/bulletin
• ftp.cmegroup.com/pub/settle
• ftp.cmegroup.com/pub/bulletin

As a result, CME Group will be making this information available to clients in the following ways:

• Daily Bulletin: CME Group Daily Bulletin files will continue to be available via the Daily Bulletin web page.
• Settlement Files: CME Group daily Settlement Files are available via the CME DataMine platform. Please take note the publication times of these files will be midnight Central Time (CT) but will continue to be available free of charge. For those that require daily Settlement Files before midnight, the end of day file is available via CME DataMine with paid subscription. 

Clients with real-time or delayed market data licenses who receive their data via CME MDP 3.0 Market Data, CME Group Data on Google Pub/Sub, or an authorized distributor of CME Group market data, may expect settlement publication times to remain unchanged.

More information on access options to settlement data, including CME DataMine, is now available in the FAQ.

Contemporaneous with these changes, settlement prices on cmegroup.com product pages will also be published at midnight CT.

You are encouraged to assess your firms’ requirements as soon as practicable to ensure there is no material disruption to the use of data procured from the CME Group FTP site today.

For more information, contact marketdata@cmegroup.com.