CME Globex Notices: January 13, 2020

Critical System Updates

Leg Security Description Change on iLink Security Definition Request - March 8

† Denotes update to the article

On Sunday, March 8 (trade date Monday, March 9), to better align with iLink 3 Binary Order Entry Protocol, CME Globex will change FIX tag 620-LegSecurityDesc validation for the Security Definition Request (tag 35-MsgType=c) message. Currently, CME Globex validate tag 620-LegSecurityDec in Security Definition Request, and the message is rejected if this tag is not included. With this change, if the tag 620-LegSecurityDesc is not present, but the Security Definition Request contains tag 602-LegSecurityID, CME Globex will accept the message.

The Security Definition Request will be rejected with a Business Level Reject (35=j) message if the Security Definition Request:

• does not contain both tag 620-LegSecurityDesc and tag 602-LegSecurityID, the reject message will include the following tag 58-Text=<Business Reject: Required Fields Missing 'Missing fields: LEG_SECURITY_DESC (620) and LEG_SECURITY_ID (602)'>.
• does not contain tag 620-LegSecurityDesc, but contains an invalid value for tag 602-LegSecurityID, the reject message will include the following tag 58-Text=< Business Reject: Required Fields Invalid 'Invalid fields: LEG_SECURITY_DESC (620) and LEG_SECURITY_ID (602)’>

This change will be available for customer testing in New Release on Monday, January 27.

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UpdateUpdate - Mandatory iLink 3 Binary Order Entry Protocol for MSGW - Available Now in New Release

Starting Sunday, March 29 (trade date Monday, March 30), CME Group will launch iLink 3, a new order entry protocol for trading futures, options, and BrokerTec products on CME Globex, over 4 launch weekends. All customers connected via Market Segment Gateway (MSGW) will need to migrate to the iLink 3 by Q4 2020.

iLink 3 includes:

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

iLink 3 will only support iLink MSGW sessions. The Client Impact Assessment is available and provides detailed functionality and messaging information.

†Starting Friday, January 24, 2019, CME Group will update the schema for iLink 3 to support the following message enhancements for BrokerTec markets. The New Release launch information for BrokerTec markets is now available.

• Add tag 6555- OriginalOrderEventExecID to the NoOrderEvents repeating group for the following messages:
  • 548 - ExecutionReportTradeAddendumOutright
  • 549 - ExecutionReportTradeAddendumSpread
  • 550 - ExecutionReportTradeAddendumSpreadLeg

†The new version 3 schema will be available in New Release for customer testing on Friday, January 24, 2020.

†Please note: iLink 3 message schema is backward compatible. Customers can send messages using the preceding version of a schema, however CME Globex will only send messages using the latest version of a schema.

The iLink 3 protocol is currently available in New Release. A new iLink certification suite will be available in AutoCert+ in January 2020; certification is required for all client systems on MSGWs.

iLink 3 Binary Order Entry Timeline
Market Segment ID	Market Segment Description	Production Launch
76	NYMEX Metals, Softs and Alternative Markets Futures; COMEX Futures	Sunday, March 29, 2020
50 68	CME Interest Options CME Equity Futures II; CBOT Equity Futures	Sunday, April 19, 2020
52 54 58 60 70 72 84 88	CME FX Futures and Options II CME and CBOT Equity Options CBOT Interest Rate Options CME, CBOT and MGEX Commodity Options CME, CBOT and MGEX Commodity Futures CBOT Commodity Futures II CBOT Interest Rate Futures CME FX Futures and Options	Sunday, May 3, 2020
56 64 74 78 80 82	NYMEX Emissions Options; NYMEX Energy, Metals, Softs and Alternative Market Options; COMEX Options; DME Options CME Equity Futures – E-mini S&P BMD Futures and Options; NYMEX SEF NYMEX Emissions and Non-Crude Energy Futures DME Futures; NYMEX Crude and Crude Refined Energy Futures CME Interest Rate Futures	Sunday, May 17, 2020

Mock Trading Session:

To support customer experience with the iLink 3 protocol in the CME Globex production environment, CME Group will offer six customer mock trading sessions on:

• Saturday, March 7, 2020
• Saturday, March 21, 2020
• Saturday, March 28, 2020
• Saturday, April 18, 2020
• Saturday, May 2, 2020
• Saturday, May 16, 2020

Customers are required to register in advance in order to participate in this mock trading session. The mock trading session script will be announced in future CME Globex Notices.

Please contact your Global Account Manager in the U.S. at +1 312 634 8700, in Europe at +44 203 379 3754 or in Asia at +65 6593 5505 for additional information.

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Drop Copy Impact: iLink 3 Binary Order Entry Protocol for MSGW - Available Now in New Release

Starting Sunday, March 29, CME Group will introduce iLink 3, a new order entry protocol on CME Globex. When source sessions for Drop Copy migrate to iLink 3, the encoded payload messages sent on Drop Copy will be in ASCII format but will reflect the following changes:

• Deprecated message tags
• Change to FIX Type for Tag 548-CrossID
• Additional Enumeration for Tag 59-TimeInForce

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

The Client Impact Assessment is available and provides detailed information on the changes to the encoded iLink 3 messages.

Certification of client systems leveraging Drop Copy Market Segment Gateway (MSGW) is not required.

Please find the iLink 3 binary order entry deployment schedule here.

Mock Trading Session:

To support customer experience with the iLink 3 protocol impacts on Drop Copy in the CME Globex production environment, CME Group will offer customer mock trading sessions on the following dates:

• Saturday, March 21, 2020
• Saturday, April 18, 2020
• Saturday, May 2, 2020
• Saturday, May 16, 2020

Customers are required to register in advance in order to participate in this mock trading session. The mock trading session script will be announced in future CME Globex Notices.

CME Group strongly recommends Drop Copy clients thoroughly test these changes to the encoded iLink messages before migration.

Please contact your Global Account Manager in the U.S. at +1 312 634 8700, in Europe at +44 203 379 3754 or in Asia at +65 6593 5505 for additional information.

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Decommission of Select ITC Market Data - Q1 2020

In Q1 2020, select ITC market data functions will be decommissioned in favor of an architecture that will support price decimals beyond 7 digits. As the result of the launch of SBE Settlements and Valuations and CME Reference Data API, many ITC data functions will become redundant and will be decommissioned.

There is currently a parallel period from the Settlements and Valuations production launch and decommission of select ITC market data. In Q1 2020, the following ITC market data impacts will be implemented:

• NYMEX, COMEX and DME ITC channels will be eliminated
• Futures and options settlements
• Cleared volume and open interest
• Cumulative volume
• High/Low/Last prices
• Fixing prices
• Marker prices
• Close prices
• Net change
• Lead month indicator
• Contract specifications
• Index prices

Real-time trading floor data, such as trades, will continue to be disseminated on ITC channels for CME, CBOT, and MGEX.

Please review the Client Impact Assessment for additional information and decommission schedules.

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CME Globex Market Segment Gateway Enhancements - May 17

The previously announced mock trading sessions and launches of CME Globex Market Segment Gateway (MSGW) Enhancements have been postponed. The new production launch schedule will start on Sunday, May 17.

CME Group will introduce the following Market Segment Gateway (MSGW) enhancements to further safeguard CME Globex infrastructure. With this enhancement, if a Market Segment Gateway (MSGW) iLink session sends a network packet with an incomplete message, that session will be subject to additional processing to ensure the stability of the platform. This processing results in at least 3 microseconds before the message(s) can be sent to the trading engine.

iLink messages impacted by this enhancement will be flagged in the corresponding Acknowledgment sent from CME Globex.

Customers are strongly encouraged to ensure all messages are contained within a single network packet by the following methods:

• Ensure any packet sent to CME group contains only complete messages
• Limit the number of quote entries in a mass quote message that fits within a single TCP packet
• Disable nagling, an algorithm that concatenates a number of small buffer messages to decrease the number of sent packets, on your order routing systems

As a reminder, conduct that disrupts, delays, or overloads the systems or operations of the exchange may be deemed to violate Rule 575 (“Disruptive Practices Prohibited”) or other rules, including Rule 432.Q. (“General Offenses – to commit an act which is detrimental to the interest or welfare of the Exchange or to engage in any conduct which tends to impair the dignity or good name of the Exchange”). Rule 575 further provides that it is a violation to enter or cause to be entered an order where the intent at the time of order entry is to cancel the order before execution. It is also a violation of Rule 575 to intentionally or recklessly enter or cause to be entered an actionable or non-actionable message that may cause an adverse impact on the orderliness of the markets.

Customers interested in finding out how MSGW enhancements would impact their iLink sessions should contact their Global Account Manager in the U.S. at +1 312 634 8700, in Europe at +44 203 379 3754 or in Asia at +65 6593 5505 for additional information.

In internal testing, iLink round trip times at the 75th percentile and above increased at least 10%.

Please review the Client Impact Assessment for additional information on these Market Segment Gateway enhancements.

Staring on Wednesday, February 12, the CME Globex MSGW enhancements will be available for customer testing in New Release. In addition, the new FIX tags for this enhancement will be available for customer testing in AutoCert+ Test Suite - MSGW Protection Enhancements. Certification is not required for these MSGW enhancements.

Mock Trading Session:

CME Group will offer two customer mock trading sessions on Saturday, April 18 and Saturday, May 2, to support customer experience with the MSGW enhancements in the CME Globex production environment. Customers are required to register in advance in order to participate in this mock trading session. The mock trading session script will be announced in future CME Globex Notices.

MSGW Enhancements Timeline
Market Segment ID	Market Segment Description	Production Launch
50 76	CME Interest Rate Options NYMEX Metals, Softs and Alternative Markets Futures; COMEX Futures	Sunday, May 17, 2020
54 68 72 88	CME and CBOT Equity Options CME Equity Futures II; CBOT Equity Futures CBOT Commodity Futures II CME FX Futures and Options	Sunday, May 31, 2020
52 58 60 64 70 78	CME FX Futures and Options II CBOT Interest Rate Options CME, CBOT and MGEX Commodity Options CME Equity Futures - E-mini S&P CME, CBOT and MGEX Commodity Futures NYMEX Emissions and Non-Crude Energy Futures	Sunday, June 7, 2020
56   74 80 82 84	NYMEX Emissions Options; NYMEX Energy, Metals, Softs and Alternative Markets Options; COMEX Options; DME Options BMD Futures and Options; NYMEX SEF DME Futures; NYMEX Crude and Crude Refined Energy Futures CME Interest Rate Futures CBOT Interest Rate Futures	Sunday, June 21, 2020

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Product Launches

NewNew - Cross North Sea Dirty Freight Futures - January 26

Effective Sunday, January 26 (trade date Monday, January 27), pending completion of all regulatory review periods, Cross North Sea Dirty Freight 80kt (Platts) futures and Cross North Sea Dirty Freight 80kt (Platts) BALMO futures will be listed for trading on CME Globex and for submission for clearing via CME ClearPort.

Cross North Sea Dirty Freight Futures
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Market Data Channel
Cross North Sea Dirty Freight 80kt (Platts) Futures	XUK	FT	386
Cross North Sea Dirty Freight 80kt (Platts) BALMO Futures	XUB	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.

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Product Changes

NewNew - Delisting and Removal of BMD Single Stock - This Week

On Monday, January 13, the following Single Stock futures were delisted, and effective close of business Friday, January 17, these futures will be removed from CME Globex.

Delisting and Removal of BMD Single Stock
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group
AMMB Holdings Bhd	FAMM	BS
AirAsia Group Bhd	FAIR	BS
Berjaya Sports Toto Bhd	FBST	BS
Bursa Malaysia Bhd	FBRS	BS
IOI Corporation Bhd	FIOI	BS

These futures currently have no open interest.

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UpdateUpdate - Changes to Minimum Price Increments, Non-Reviewable Range and Trade Matching Algorithm to Canadian Dollar/U.S. Dollar and Australian Dollar/U.S. Dollar (AUD/USD) Futures Intra-Currency Calendar Spreads: Resting Order Eliminations - January 26

† Denotes update to the article

Effective Sunday, January 26 (for trade date Monday, January 27), the following changes will be made to the CAD/USD futures and AUD/USD futures intra-currency calendar spreads:

• Match Algorithm change from Pro-Rata (tag 1142=C) to Configurable (tag 1142=K) for all calendar spread months.  The configuration will be 20% FIFO, 80% Pro Rata with no Leveling and all residuals being distributed via FIFO.
• † Changes to the Non-Reviewable Range for all calendar spread months from the current 20 to 50.
• Change to fix tag 969-MinTickIncrement for non-consecutive month intra-currency futures calendar spreads.

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 contracts, including any User- or Exchange-Defined Spreads, by the close on Friday before the Monday effective date. After 16:00 CT on the Friday before the Monday effective date, any remaining GT orders on these markets will be removed by the CME Global Command Center (GCC).

Change to Minimum Price Increments and Trade Matching Algorithm to Canadian Dollar/U.S. Dollar and Australian Dollar/U.S. Dollar (AUD/USD) Futures Intra-Currency Calendar Spreads: Resting Order Eliminations
Product	MDP 3.0: tag 6937- Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Tag 762-SecuritySubType	Current Tag 969-MinTickIncrement	New Tag 969-MinTickIncrement
Canadian Dollar/U.S. Dollar (CAD/USD) Futures	6C	6C	6C	0.500000000	0.200000000
Australian Dollar/U.S. Dollar (AUD/USD) Futures	6A	6A	6A	0.500000000	0.200000000

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

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

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UpdateUpdate - Extension of the Temporary Suspension of Three EUA Futures and Options  

† Denotes update to the article

†The temporary suspension of the European Union Allowance (EUA) futures and options has been extended until further notice.

Extending Suspension of Three EUA Futures and Options
Product	MDP 3.0: tag 6937-Asset	iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group
In Delivery Month European Union Allowance (EUA) Futures	EAF	VX
In Delivery Month European Union Allowance (EUA) Options	EAX	GY
In Delivery Month European Union Allowance (EUA) Serial Options	9G	GY

These products currently have no open interest.

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Transfer of NYMEX Ferrous Metals to COMEX – Resting Order Eliminations - Q1 2020

Pending CFTC regulatory review, effective Q1 2020, the following NYMEX Ferrous metals products will be transferred from the NYMEX Designated Contract Market (DCM) to the COMEX DCM. With this change, all CME Group Ferrous metal contracts will be listed on a single DCM.

The transfer of open interest will be administrative in nature as there will be no impact on trading or to the economic value of the contracts.  The contracts will continue to clear at CME Clearing and the commodity codes will remain unchanged.

To effect this change, the contracts will be removed from NYMEX and added to COMEX.  The product codes and Market Segments will not change. The product groups and market data channel changes are detailed below.

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 contracts, including any User- or Exchange-Defined Spreads, by the close on Friday before the Monday effective date. After 16:00 CT on the Friday before the Monday effective date, any remaining GT orders on these markets will be removed by the CME Global Command Center (GCC).

Transfer of NYMEX Ferrous Metals to COMEX
Product	Current iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	New iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group	Current MDP 3.0: tag 207-SecurityExchange	New MDP 3.0: tag 207-SecurityExchange	Current MDP 3.0 Market Data Channel	New MDP 3.0 Market Data Channel
U.S. Midwest #1 Busheling Ferrous Scrap (AMM) Futures – BUS	ST	MA	XNYM	XCEC	384	360
HMS 80/20 Ferrous Scrap, CFR Turkey (Platts) Futures – FSF	ST	MA			384	360
Iron Ore 58% Fe, Low Alumina, CFR China (TSI) Futures – TIC	ST	MA			384	360
Iron Ore 62% Fe, CFR China (TSI) Futures – TIO	IO				384	360
U.S. Midwest Domestic Hot-Rolled Coil Steel Index Futures – HRC	HR				384	360
U.S. Midwest Domestic Hot-Rolled Coil Steel Index Average Price Option – HRO	H1				385	361
Iron Ore 62% Fe, CFR China (TSI) Average Price Option - ICT	I5				385	361

There will be no changes to MDP 3.0 functionality or messaging format. The multicast address, source IPs, TCP address, and ports for the channels and Market Segment Gateways are available on the CME FTP and SFTP sites.

Further details will be forthcoming closer to the effective date.

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Transfer of NYMEX UxC Uranium U308 Futures to COMEX – Resting Order Eliminations - Q1 2020

Pending CFTC regulatory review, effective Q1 2020, the UxC Uranium U308 futures (tag 6937-Asset=UX) will be transferred from the NYMEX Designated Contract Market (DCM) to the COMEX DCM.

The transfer of open interest will be administrative in nature as there will be no impact on trading or to the economic value of the contract.  The contract will continue to clear at CME Clearing and the commodity codes will remain unchanged. To effect this change, the contract will be removed from NYMEX and added to COMEX.  The product codes and groups will not change. The market segment, product groups and market data channel changes are detailed below.

Please Note: To facilitate this change, customers will be asked to cancel all Good ‘Till Cancel (GTC) and Good ‘Till Date (GTD) orders for this contract, including any Exchange-Defined Spreads, by the close on Friday before the Monday effective date. After 16:00 CT on the Friday before the Monday effective date, any remaining GT orders on these markets will be removed by the CME Global Command Center (GCC).

Transfer of NYMEX UxC Uranium U308 Futures to COMEX
Product	Current MDP 3.0: tag 207-SecurityExchange	New MDP 3.0: tag 207-SecurityExchange	Current Market Data Channel	New Market Data Channel	Current Tag 1300-MarketSegmentID	New Tag 1300-MarketSegmentID
UxC Uranium U3O8 Futures - UX	XNYM (NYMEX)	XCEC (COMEX)	386	360	78	76

There will be no changes to MDP 3.0 functionality or messaging format. The multicast address, source IPs, TCP address, and ports for the channels and Market Segment Gateways are available on the CME FTP and SFTP sites.

Further details will be forthcoming closer to the effective date.

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Events and Announcements

NewNew - Announcing CME Global Command Center System Alerts Web Page - Today

Beginning Thursday, January 16, customers can view critical system alerts for production environment issues on cmegroup.com. An historical archive of the systems alerts will be accessible to customer with a CME Group Login. If you do not currently have a CME Group Login, please create your account.

We encourage customers bookmark CME Global Command Center System Alerts to their favorites.  This new GCC System Alerts page is in addition to GCC Targeted Messaging.

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BrokerTec CME Globex New Release Environment Access

In preparation for the BrokerTec markets launch on CME Globex in Q4 2020, customers and vendors will need to begin to develop and test their applications via CME Globex New Release Environment. The New Release Environment supports products, messaging and functionality testing prior to production launch. Basic functionality for all APIs is currently available in the New Release Environment.

All BrokerTec customers will be required to establish connectivity to the CME Globex New Release Environment prior to testing. Customers may choose one of two ways to connect:

• CME Cert VPN - which uses a secure, encrypted tunnel through an Internet service that supports VPN protocols
• CME Cert Data Center - which allows customers to cross connect to CME Data Center locations where this option is offered, using a 1Gbps fiber handoff.

Internet access to the New Release environment for the CME STP and CME STP FIX APIs is also available now.

To request connectivity to the CME Globex New Release Environment for BrokerTec:

• BrokerTec customers who are new to CME Group must submit a Certification/New Release Environment Access Request and Change Form.  This form can be found on the BrokerTec Support Portal.
  • To access the BrokerTec Support Portal you must be an existing customer or vendor with a signed Non-Disclosure Agreement (NDA) in place with BrokerTec.  
• BrokerTec customers who already have a CME Cert VPN or CME Cert Data Center connection should contact their Global Account Manager to request that their existing connection be configured to connect to BrokerTec in the New Release Environment.

Learn more about how to get set up to test in the CME Globex New Release Environment:

If you have any questions, please contact your CME Global Account Manager in the U.S.: +1 312 634 8700, in Europe +44 203 379 3754 or in Asia +65 6593 5505 for additional information.

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