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

Critical Updates

AB Spread Type - Anchor Leg Pricing Enhancement - This Week

Effective this Sunday, September 10, (trade date Monday, September 11), CME Group will enhance the spread leg price assignment method for the Averaged Price Bundle, spread type=AB. The spread leg price assignment method used when summing the spread legs and in assigning differential ticks will change from using fair market price to prior day settlement price.        

The spread legs prior day settlement price will be rounded to nearest .5 tick.

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

New Release Market Data Source IP Update  - September 29

Effective close of business Friday, September 29, CME Group will change the Market Data Platform (MDP) Market By Order (MBO) recovery source/host IPs for channels "CME Globex Equity futures - excludes E-mini S&P 500" (318) and "CBOT Globex Equity Index futures" (342) as follows:

CHANNEL NAME	CHANNEL IDS	FEED TYPE	HOST	CURRENT SOURCE IP ADDRESS	NEW SOURCE IP ADDRESS
CME Globex Equity Futures - excludes E-mini S&P 500	318	Incremental	Primary and Backup	69.50.112.91	69.50.112.35
CBOT Globex Equity Index Futures	342

A new config.xml file will be available for customer download Saturday, September 30.

See additional information on SFTP - MDP Configuration.

GLink Network Infrastructure Upgrade in Aurora - Q4 2023

In Q4 2023, CME Group will update its GLink network infrastructure at the CME Co-Location Facility in Aurora, IL. This network upgrade consists of:

• Replacement of the existing end of life (EOL) Juniper switches with new Arista switches which will utilize new customer ports and new CME IPs
• Assignment of new GLink SiteIDs and IPs by CME Group.
• Introduction of a new GLink Demarc Cable providing customers with equidistant connectivity to any rack unit (RU) in their cabinet

The new GLink switches will provide expanded capacity to support future growth. In addition, the new GLink Demarc Cable will allow customers to optimize their CME Co-Location Licensed Space.  

• To mitigate migration risks for customers and CME Group, a modified version of the Juniper network will remain in service after launch of the new Arista network for an interim period. CME Group anticipates decommissioning the Juniper network in Q2/Q3 2024.
• To ensure stability for our customers prior to launch, CME Group instituted a provisioning freeze for GLinks on the Juniper network effective August 30, 2023. Customers will be able to place orders for new GLinks on the Arista network during the freeze, however these will be provisioned and activated after launch. Juniper GLinks can no longer be ordered.
• In the weeks prior to the launch, a change will be made to the existing Juniper GLink network to facilitate the parallel operation of Juniper and Arista networks post cutover.
• Customer self-testing of new Arista ports will begin on Monday, September 18 and run through Saturday, September 30. Customer self-testing is required for new Arista GLink connections. Customers that require on-site assistance to conduct the self-test should schedule Remote Hands support.

Please review the Pending Client System Impact for additional information and an updated FAQ.  

For questions or to discuss available migration options, please contact Global Account Management. 

TOP Order Allocation Maximum Quantity Enhancement - October 1

Starting Sunday, October 1 (trade date Monday, October 2), CME Group will implement an enhancement to the TOP order allocation maximum quantity for all futures and options on futures products. The overview of TOP maximum quantity enhancement is now available.  

With this change, CME Globex will no longer count initial aggressed quantity, and only count fills after the order rests in the market against the TOP MAX quantity. Currently, TOP Max includes initial aggressed quantity as well.

This enhancement is to ensure that for aggressing orders larger than the TOP Max, the entire resting amount is eligible for TOP.

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

More information about TOP functionality is available in the Client Systems Wiki.

iLink Mass Order Cancel Change - October 22

Effective Sunday, October 22 (trade date Monday, October 23), the maximum number of individual cancelled orders listed in one Order Mass Action Report on CME Globex will be reduced to 75. Currently, the maximum number of cancelled orders listed in one Order Mass Action Report is 125.

This change will be available for customer testing in New Release today Thursday, September 7.

More information about Mass Order Cancel functionality is available in the Client Systems Wiki.

Additional CVOL Indices on Benchmark Administration Premium - October 22

Effective Sunday, October 22 (trade date Monday, October 23), the following CME Group Volatility Index (CVOL) products will be listed on Benchmark Administration Premium UDP Multicast and GCP SBE.

Additional CVOL Indices on Benchmark Administration Premium
PRODUCT NAME	TAG 55 - SYMBOL	TAG 37500 - CLEARINGPRODUCTCODE	TENOR SELECTION	MULTICAST CHANNEL & GCP SBE CHANNEL NUMBER
Feeder Cattle	GFVL	62/GF	Tenor Selection 6	261
Platinum	POVL	PL/PL	Tenor Selection 2
Aluminum	ALVL	ALI/ALI	Tenor Selection 2

Clear Product Code Mapping

Contract	CVOL Group	CVOL Symbol	Up Var Symbol	Down Var Symbol	Skew Symbol	ATM Vol Symbol	Convexity Symbol
Feeder Cattle	Tenor Selection 6	GFVL	GFUP	GFDN	GFSK	GFAM	GFCV
Platinum	Tenor Selection 2	POVL	POUP	PODN	POSK	POAM	POCV
Aluminum	Tenor Selection 2	ALVL	ALUP	ALDN	ALSK	ALAM	ALCV

Additional product and instrument information are defined in Reference Data API.

The CVOL Indexes will be available in New Release for customer testing on Monday, September 18.

Mandatory Migration - iLink 3 Binary Order Entry Protocol for CGW - Q1 2024

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 on Sunday, February 4, 2024 (trade date Monday, February 5). 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 – October 23, 2023

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 for On-Demand administrative information
• September 25, 2023 – iLink 3 CGW functionality available in New Release and AutoCert+ certification for Pre-registered administrative information
• February 4, 2024 –  Production launch of iLink 3 on CGW
• December 31, 2024 – Deadline for customer migration
• January 31, 2025 - iLink 2 on CGW Decommission 

Further information on the production launch deployment schedule, and mock trading sessions will be published in upcoming CME Globex Notices.

Please contact your Global Account Manager for additional information.

Drop Copy Impacts - Mandatory iLink 3 Binary Order Entry Protocol for Convenience Gateway - Q1 2024

On Sunday, February 4, 2024 (trade date Monday, February 5), 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.

Product Launches

Additional CME CF Cryptocurrency Reference Rates - This Week

Starting this Monday, September 11, CME Group and CF Benchmarks (CFB) will launch two new cryptocurrency reference rates designed to provide clients an additional, reliable reference rate for the US dollar price of bitcoin and ether. The pricing data will be disseminated via the streamlined CME CF Cryptocurrency Pricing Market Data feed on channel 213 and through CME DataMine.

The feed will publish the following standardized reference Rates in US dollars, shortly after 4 p.m. Hong Kong/Singapore Time daily, including weekends and bank holidays:

• CME CF Bitcoin Reference Rate APAC (BRRAP)
• CME CF Ether-dollar Reference Rate APAC (ETHUSD_AP)

The additional cryptocurrency pricing data is currently available for customer testing in New Release. 

Certification is not required.

NewListing of European Gasoline Futures and Options Contracts - October 1

Effective Sunday, October 1 (trade date Monday, October 2), pending completion of all regulatory review periods, the following European Gasoline futures and options contracts will be listed for trading on CME Globex and for submission for clearing via CME ClearPort.

Listing of European Gasoline Futures and Options Contracts
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Market Data Channel
Mini Gasoline Eurobob Non-Oxy NWE Barges (Argus) Futures	OMN	PT	382
Mini Gasoline Eurobob Non-Oxy NWE Barges (Argus) BALMO Futures	MBO	PT	382
Gasoline Eurobob Non-Oxy NWE Barges (Argus) Crack Spread (1000mt) Futures	NBO	PT	382
Gasoline Eurobob Non-Oxy NWE Barges (Argus) Crack Spread (1000mt) BALMO Futures	MCB	PT	382
Mini Gasoline Eurobob Non-Oxy NWE Barges (Argus) Crack Spread (100mt) Futures	MCS	PT	382
Gasoline Eurobob Non-Oxy NWE Barges (Argus) Crack Spread BALMO Futures	MCE	PT	382
Gasoline Eurobob Non-Oxy NWE Barges (Argus) vs. European Naphtha CIF NWE (Platts) Futures	MCF	PT	382
Gasoline Eurobob Non-Oxy NWE Barges (Argus) vs. European Naphtha CIF NWE (Platts) BALMO Futures	MCN	PT	382
Singapore Gasoline 92 Unleaded (Platts) vs. Gasoline Eurobob Non-Oxy NWE Barges (Argus) BALMO Futures	SGO	PT	382
Gasoline Eurobob Non-Oxy NWE Barges (Argus) Crack Spread Average Price Option	EBO	EP- Outright P2-UDS	383

These futures and options will be available for customer testing in New Release on Monday, September 11.

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

New13-Week U.S. Treasury Bill Futures - October 1

Effective Sunday, October 1 (trade date Monday, October 2), pending completion of all regulatory review periods, 13-Week US Treasury Bill futures will be listed for trading on CME Globex and for submission for clearing via CME ClearPort.

13-Week U.S. Treasury Bill Futures
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	MARKET DATA CHANNEL
13-Week US T-Bill Futures	TBF3	BH	312

These futures will be available for customer testing in New Release on Monday, September 11.

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

UpdateListing Treasury vs. Eris Futures Implied Intercommodity Spreads  - October 23

† Denotes update to the article

Effective Sunday, October 22 (trade date Monday, October 23), the following Treasury vs. Eris futures Implied Intercommodity spreads will be listed on CME Globex.

Listing Treasury vs. Eris Futures Implied Intercommodity Spreads
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Tag 762- SecuritySubType	† Tag 5770-PriceRatio	† Leg Quantity Ratio
5-Year T-Note Futures (ZF) - 5-Year Eris SOFR Swap Futures (YIW)	EWF	IV	IV - Implied Treasury Intercommodity Spread	1.000000000	0.042361
10-Year T-Note Futures (ZN) – 7-Year Eris SOFR Swap Futures (YIB)	EBN	IV		1.000000000	0.042361
Ultra 10-Year T-Note Futures (TN) - 10-Year Eris SOFR Swap Futures (YIY)	EYN	IV		1.000000000	0.042361

These spreads will be available for customer testing in New Release on Monday, September 18.

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

Bursa Malaysia Derivatives (BMD) Mini United States Dollar/Chinese Renminbi (HK) (USD/CNH) Futures  - December 3

Effective Sunday, December 3 (trade date Monday, December 4), and pending final regulatory approval, Bursa Malaysia Derivatives (BMD) Mini United States Dollar/Chinese Renminbi (HK) (USD/CNH) futures and spreads will be made available for trading on CME Globex.

Bursa Malaysia Derivatives (BMD) Mini United States Dollar/Chinese Renminbi (HK) (USD/CNH) Futures
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Market Data Channel
Mini United States Dollar/Chinese Renminbi (HK) (USD/CNH) futures	FCNH	B6	430

These futures and spreads will be available for customer testing in New Release on Monday, September 11.

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

Product Changes

Listing Schedule Change to Trade Marker at Close (TMAC) on Equity Futures - This Week

Effective this Sunday, September 10 (trade date Monday, September 11), pending completion of all regulatory review periods, the listing schedule for Trade Marker at Close (TMAC) on the below Equity Index futures will be changed on CME Globex.

Listing Schedule Change to Trade Marker at Close (TMAC) on Equity 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
TMAC on E-mini S&P 500 Futures	ESX	E2	Single month at any time; TMAC expires at 15:00 CT on the day before the underlying expiration Example: ES7U3 only	TMAC expiring at 15:00 CT on the day before the underlying expiration and next quarterly TMAC for trading beginning the Sunday of the preceding week's expiration.  Example:  ES7U3 and ES7Z3
TMAC on E-mini Nasdaq-100 Futures	NQX	N9
TMAC on E-mini Russell 2000 Futures	RTX	R9
TMAC on E-mini Dow Jones Industrial Average Futures	YMX	Y9

For additional information, please refer to Special Executive Report SER-9243.

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

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

Changes to Price Dissemination Precision for CME CF Crypto Indices - This Week

Effective this Sunday, September 10 (trade date Monday, September 11), the price dissemination precision for the following CME CF Crypto Indices will be increased as follows:

Changes to Price Dissemination Precision for CME CF Crypto Indices
Product	RR Ticker	RTI Ticker	Current Dissemination Precision	New Dissemination Precision
AAVE	AAVEUSD_RR	AAVEUSD_RTI	2	4
AVAX	AVAXUSD_RR	AVAXUSD_RTI	2	4
BCH	BCHUSD_RR	BCHUSD_RTI	2	3
LTC	LTCUSD_RR	LTCUSD_RTI	2	4
DOT	DOTUSD_RR	DOTUSD_RTI	4	5
FIL	FILUSD_RR	FILUSD_RTI	4	5
SNX	SNXUSD_RR	SNXUSD_RTI	3	5

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

Listing Cycle Expansion for Aluminium European Premium Duty-Unpaid and Duty-Paid (Metal Bulletin) Futures  - This Week

Effective this Sunday, September 10 (trade date Monday, September 11), the listing cycle for the following Aluminium European Premium Duty-Unpaid and Duty-Paid (Metal Bulletin) futures will be expanded on CME Globex.

Trade Marker at Close (TMAC) products allow market participants to enter a trade at a differential to the yet-to-be-determined daily marker price, for subsequent clearing into the existing products. TMAC functionality uses “0” to represent the yet-to-be-determined daily marker price and trades ± 20 ticks for E-mini S&P 500, Nasdaq-100, and Russell 2000 futures, and ±4 ticks for E-mini Dow Jones Industrial Average futures.

Listing Cycle Expansion for Aluminium European Premium Duty-Unpaid and Duty-Paid (Metal Bulletin) 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
Aluminium European Premium Duty-Unpaid (Metal Bulletin) Futures	AEP	ST	Monthly contracts for the current year and the next 2 years	Monthly contracts for the current year and the next 3 years
Aluminium European Premium Duty-Paid (Metal Bulletin) Futures	EDP	ST	Monthly contracts for the current year and the next 2 years	Monthly contracts for the current year and the next 3 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.

NewExpansion of Trading at Settlement (TAS) Eligibility for the KC HRW Wheat, Soybean, Soybean Meal, and Soybean Oil Futures Contracts - October 1

Effective Sunday, October 1 (trade date Monday, October 2), pending completion of all regulatory review periods, changes will be made for these agricultural contracts on CME Globex and for submission for Clearing via CME Clearport as follows:

• Expansion of Trade at Settle (TAS) eligibility
• Enable spread functionality for all combinations of TAS eligible contract months of these contracts

Expansion of Trading at Settlement (TAS) Eligibility for the KC HRW Wheat, Soybean, Soybean Meal, and Soybean Oil Futures Contracts
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group
KC HRW Wheat TAS	KET	TW
Soybean TAS	SBT	TA
Soybean Meal TAS	ZMT	TA
Soybean Oil TAS	ZLT	TA

For additional information Trading at Settlement (“TAS”) Outright and calendar spread availability, please refer to the Special Executive Report, SER-9244R.

These futures will be available for customer testing in New Release on Monday, September 11.

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

UpdateResting Order Elimination: Change to US Dollar/Offshore Chinese Renminbi (USD/RMB) Futures - October 1

† Denotes update to the article

Effective Sunday, October 1 (trade date Monday, October 2), pending the completion of all regulatory review periods, tag 969-MinimumPriceIncrement and daily settlement minimum price fluctuation for the following US Dollar/Offshore Chinese Renminbi (USD/RMB) futures will be amended.

Please Note: To facilitate this change, customers will be asked to cancel all Good ‘Till Cancel (GTC) and Good ‘Till Date (GTD) orders for these US Dollar/Offshore Chinese Renminbi (USD/RMB) futures contracts, by the close Friday, September 29. After 4 p.m. CT on Friday, September 29, any remaining GT orders on these markets will be removed by the CME Global Command Center (GCC).

Change to U.S. Dollar/Offshore Chinese Renminbi (USD/RMB) Futures
PRODUCT	MDP 3.0: TAG 6937-ASSET	ILINK: TAG 55-SYMBOL MDP 3.0 TAG 1151 - SECURITY GROUP	CURRENT MDP 3.0: TAG 969- MINPRICEINCREMENT	NEW MDP 3.0: TAG 969- MINPRICEINCREMENT
US Dollar/Offshore Chinese Renminbi (USD/RMB) Futures	CNH	RM	Outrights: 1.000000000 (0.0001 index points) CNH per USD; Spreads: 5.000000000 (0.00005 index points) CNH per USD; Settlement: 1.000000000 (0.0001 index points)	Outrights: 5.00000000 (0.0005 index points) CNH per USD; † Spreads: 0.250000000 (0.000025 index points) CNH per USD; Settlement: 5.000000000 (0.0005 index points)
Micro US Dollar/Offshore Chinese Renminbi (USD/RMB) Futures	MNH	RM	Outrights, Spreads and † Settlement: 0.000100000 (0.0001 index points) CNH per USD	Outrights, Spreads and † Settlement: 0.0005000000 (0.0005 index points) CNH per USD

These changes will be made available in New Release for customer testing on Monday, September 11.

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

Resting Order Elimination: Changes to Options on E-mini Standard and Poor's 500 Stock Price Index Futures - October 1

Effective Sunday, October 1 (trade date Monday, October 2), pending completion of all regulatory review periods, the following changes will be made for options on E-mini Standard and Poor's 500 Stock Price Index futures:

• The reduced tick threshold for all options on E-mini S&P 500 futures will be amended to 10.00 points from the current value of 5.00 points.
• The Variable Tick Table (VTT) value for options on E-mini S&P 500 futures will be changed to 15 from the current value of 4.

Please Note: To facilitate this change, customers will be asked to cancel all User Defined Spreads (UDS), Good ‘Till Cancel (GTC) and Good ‘Till Date (GTD) orders for related contracts by the close on Friday, September 29. After 4 p.m. CT on Friday, September 29, any remaining GT orders on these markets will be removed by the CME Globex Command Center (GCC) and UDS eliminated.
Outright orders for options on E-mini S&P 500 futures will not be cancelled.

Resting Order Elimination: Changes to Options on E-mini Standard and Poor's 500 Stock Price Index Futures
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Current Variable Tick Table Index Code and Globex Price	New Variable Tick Table Index Code and Globex Price
Options on E-mini Standard and Poor's 500 Stock Price Index Futures	ES	EW	VTT: 4 P < -500 = 25 -500 ≤ P ≤ 500 = 5 P > 500 = 25	VTT: 15 P < -1000 = 25 -1000 ≤ P ≤ 1000 = 5 P > 1000 = 25 Note: CME ClearPort tick will remain unchanged
Monday Weekly Options on E-mini Standard and Poor's 500 Stock Price Index Futures - Week 1-5 (European-Style)	E1A-E5A	EW
Tuesday Weekly Options on E-mini Standard and Poor's 500 Stock Price Index Futures - Week 1-5 (European-Style)	E1B-E5B	EW
Wednesday Weekly Options on E-mini Standard and Poor's 500 Stock Price Index Futures - Week 1-5 (European-Style)	E1C-E5B	EW
Thursday Weekly Options on E-mini Standard and Poor's 500 Stock Price Index Futures - Week 1-5 (European-Style)	E1D-E5D	EW
Weekly Options on E-mini Standard and Poor's 500 Stock Price Index Futures - Week 1-4 (European-Style)	EW1-EW4	EW
Options on E-mini Standard and Poor's 500 Stock Price Index Futures - End-of-Month (European-Style)	EW	EW
Options on Micro E-mini Standard and Poors 500 Stock Price Index Futures	MES	EO
Monday Weekly Options on Micro E-mini S&P 500 Index Futures - Week 1-5 (European-Style)	X1A-X5A	EO
Tuesday Weekly Options on Micro E-mini S&P 500 Index Futures - Week 1-5 (European-Style)	X1B-X5B	EO
Wednesday Weekly Options on Micro E-mini S&P 500 Index Futures - Week 1-5 (European-Style)	X1C-X5C	EO
Thursday Weekly Options on Micro E-mini S&P 500 Index Futures - Week 1-5 (European-Style)	X1D-X5D	EO
Weekly Options on Micro E-mini Standard and Poors 500 Stock Price Index Futures - Week 1-4	EX1-EX4	EO
Micro E-mini Standard and Poors 500 Stock Price EOM Options	EX	EO

The 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 System Wiki.

These changes will be available for customer testing in New Release on Monday, September 11.

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

NewChange to Dynamic Strike Price Interval for Monthly and Weekly Friday Options on Brazilian Real/U.S. Dollar (BRL/USD) Futures & Monthly and Weekly Friday Options on Mexican Peso/U.S. Dollar (MXN/USD) Futures - October 22

Effective Sunday, October 22 (trade date Monday, October 23), the dynamic strike price increment will be changed for Monthly and Weekly Friday options on Brazilian Real/US Dollar (BRL/USD) futures & Monthly and Weekly Friday options on Mexican Peso/US Dollar (MXN/USD) futures on CME Globex.

Change to Dynamic Strike Price Interval for Monthly and Weekly Friday Options on Brazilian Real/U.S. Dollar (BRL/USD) Futures & Monthly and Weekly Friday Options on Mexican Peso/U.S. Dollar (MXN/USD) Futures
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Current Dynamic Strike Interval	New Dynamic Strike Interval
MXN/USD Monthly Options	6M	MO	$0.0005 per MXN	$0.0001 per MXN
MXN/USD Weekly Friday Options	1M – 5M	MO	$0.0005 per MXN	$0.0001 per MXN
BRL/USD Monthly Options	BR	OR	$0.001 per BRL	$0.0005 per BRL
BRL/USD Weekly Friday Options	1R – 5R	OR	$0.001 per BRL	$0.0005 per BRL

These changes options will be available for customer testing in New Release on Monday, September 18.

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

NewResting Order Eliminations: Change to External Alias for Monthly and Weekly Friday Options on Brazilian Real/U.S. Dollar (BRL/USD) Futures - October 22 

Effective Sunday, October 22 (trade date Monday, October 23), the external alias will display the full strike price for Monthly and Weekly s Monthly and Weekly Friday options on Brazilian Real/US Dollar (BRL/USD) futures.

• Example: tag 55-Symbol= BRX3 P1610, currently the strike price on the external alias is reflected as BRX3 P0161 – No change to the Monthly and Weekly MXN/USD options.

Please Note: To facilitate this change, customers will be asked to cancel all Good ‘Till Cancel (GTC) and Good ‘Till Date (GTD) orders for monthly and weekly BRL/USD options contracts, by the close on Friday, October 20. After 16:00 CT on Friday, October 20, any remaining GT orders on these markets will be removed by the CME Global Command Center (GCC).

Resting Order Eliminations: Change to External Alias for Monthly and Weekly Friday Options on Brazilian Real/U.S. Dollar (BRL/USD)
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group
BRL/USD Monthly Options	BR	OR
BRL/USD Weekly Friday Options	1R – 5R	OR

These changes  will be available for customer testing in New Release on Monday, September 18.

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

Listing Cycle Expansion for Micro WTI Crude Oil Futures - October 23

Effective Sunday, October 22 (trade date Monday, October 23), the listing cycle for the following Micro WTI Crude Oil futures will be expanded on CME Globex.

Listing Cycle Expansion for Micro WTI Crude Oil 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
Micro WTI Crude Oil Futures	MCL	CL	Monthly contracts listed for 12 consecutive months and additional Jun and Dec contract months	Monthly contracts listed for the current year and the next 3 calendar years.

These futures will be available for customer testing in New Release on Monday, October 2.

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

Events and Announcements

SPAN 2 Approximation Files Available Now - This Week

The last scheduled date for Clearing Members to adopt the SPAN 2 framework for NYMEX energy futures and options on futures will take place this Friday, September 8. All customers are encouraged to adopt the Approximation Files at this time. 

To help clients prepare for this launch, CME Group is offering the following services:

• Tools for replicating SPAN 2 margin requirements through software and API solutions for post-trade processes.
• New SPAN 2 approximation file to help firms estimate SPAN 2 margins in low latency margin calculation scenarios for pre-trade margin approximation processes.

Further details are available on the Client Systems Wiki. 

Please contact PostTradeServices@cmegroup.com now to get ready for this critical migration.

CME Reference Data API v2 Decommission - Reminder

Effective Friday, October 27, Reference Data API version 2 will be decommissioned and no longer supported. To support the decommission, version 2 will be deprecated and no further enhancements will be offered as of Saturday, September 30. 

Customers are strongly encouraged to migrate to Reference Data API Version 3 as soon as possible to prevent any data interruptions. 

CME Reference Data API v3 (RD APIv3), hosted on Google Cloud (GC), provides the following enhancements:

• Decreased refresh time rate
• Increased results per page from 20 to 1000
• No change to your API IDs and entitlements

Clients should review an updated Client Impact Assessment for details on v3.

Reference Data API Version 3 is currently available in Production and for customer testing in New Release.

NewCME Group Settlement File and Daily Bulletin Modifications - January 8

Effective Monday, January 8, CME Group Settlement Files and Daily Bulletin will no longer be available through the below File Transfer Protocol (FTP) links, as CME Group will cease support of these FTP folders:

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

DataMine     

Dataset	Times Available (CT)	Fee Liable
End of Day File	5:30 p.m.; 9:30 p.m.; and 9:30 a.m. (following day)	Yes
Settlements File	Midnight	No

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.

More information will be made available in subsequent CME Globex Notices.