Topics in this issue include:
For the latest roadmap of CME Group technology initiatives:
See the Development Launch Schedule.
CME Group is implementing end-to-end technology changes to support increased price granularity. Currently, CME Group systems support a maximum of 7 decimals. With this initiative, products with up to 9 decimals may be listed and traded. On Sunday, January 13, 2019 (trade date Monday, January 14), pending regulatory approval, the 2-Year Treasury Note futures, all 2-Year Treasury Future Spreads (including Calendar Spreads, Tail Spreads and Inter-Commodity Spreads with a 2-Year Treasury Future) along with the futures portion of covered options UDS, will move from 7 decimals to 8 to support trading at 1/8 of 1/32.
Customers are encouraged to move to support 9 decimals now; but there are no plans to list a product that uses the 9th decimal at this time.
With this release, customer certification will be required for MDP 3.0 and Streamlined SBE. The new Market Data templates are currently available in New Release and the AutoCert+ test suite is now available for certification.
On Sunday, November 18, a production test instrument for the 2-Year Treasury Note futures will be launched on CME Globex. This new test instrument will give customers the ability to confirm system readiness for the introduction of 8-digit decimal price precision. Upon the launch of this test instrument, clients whose systems are not yet prepared to handle 8 decimal precision must ensure their systems have the ability to ignore market data and iLink/Drop Copy execution reports on this new instrument.
Price Precision Timeline:

Please note: The production test instrument launch and the following schema releases have been rescheduled. For complete impacts, updated rollout information and dates, please refer to Key Events and Dates in the Client Impact Assessment.
| Launch | Old Launch Date | New Launch Date |
|---|---|---|
| NYMEX/COMEX Schema Release – Phase 1 | Sunday, November 4 | Sunday, November 18 |
| Production Test Instrument Launch | Sunday, November 4 | Sunday, November 18 |
| NYMEX/DME/KRX/BMD Schema Release – Phase 2 | Sunday, November 18 | Sunday, December 2 |
Please note: The referential data public settlement FTP file support timelines are now available in the Client Impact Assessment Referential Data Section.
The Client Impact Assessment includes additional information on the following:
Please watch the Price Precision Extension Technology video for a technical impact overview.
These changes are currently available in New Release for customer testing. The 2-Year Treasury Note futures are available in New Release with 1/8 of 1/32 tick.
On Monday, September 10, CME Group launched two additional Price Precision test instruments in the New Release environment. These instruments gives customers the ability to perform additional testing on 8 and 9 decimal prices. These instruments will only be available in the New Release environment and will not be launched in the Production and Certification environments.
| Price Precision Test Instruments | |||||
|---|---|---|---|---|---|
| Product | MDP 3.0: tag 6937-Asset | iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group |
Price Precision | Market Data Channel | |
| E-micro Japanese Yen/American Dollar Futures | 099 | #J | 9-Decimal | 314 | |
| E-micro Japanese Yen/American Dollar Futures | 097 | #J | 8-Decimal | 314 | |
Effective Sunday, November 18 (trade date Monday, November 19), CME Globex will implement Automated Port Closure on Drop Copy sessions to further protect CME Group markets and systems from potentially detrimental behavior. Currently, CME Globex Port Closure Policy applies only to iLink sessions.
With this implementation, CME Globex will automatically logout and close both the primary and backup ports for any Drop Copy session that exceeds 5 invalid Logon (tag 35=A) messages in 60 seconds. Logon messages may be invalid due to:
Automated Port Closure on Drop Copy sessions can also be triggered by sending messages other than a Logon when the session has not yet been successfully logged in and by exceeding the Administrative Messaging Threshholds.
When triggered, the Drop Copy gateway will send a Logout message (tag 35=5) with tag 58-Text="(1000) CME Administered Port Closure Due to Invalid Number of Login Attempts Being Exceeded".
Sessions with active-active fault tolerance will receive the Logout message on both the primary and backup instances. Sessions without fault tolerance will only receive the Logout on the primary instance, but both the primary and backup ports will be closed.
An authorized Drop Copy contact must contact the Global Command Center directly to have a port re-opened. The GCC can be reached in U.S. at U.S. at +1 800 438 8616, in Europe at +44 20 7623 4747 or in Asia at +65 6532 5010.
Automated Port Closure for Drop Copy is currently available for customer testing in New Release. To facilitate customer testing, the parameters in New Release will be 5 invalid Logon (tag 35=A) messages in 15 seconds.
Effective Sunday, November 18 (trade date Monday, November 19), Drop Copy sessions will be subject to Administrative Messaging Thresholds. The following administrative messaging thresholds will apply.
| Messaging Controls for Drop Copy Sessions | |||
|---|---|---|---|
| Environment | Reject Threshold | Port Closure /Logout Threshold | Interval |
| New Release | 401 | 501 | Three-second window |
| Production | 100 | 200 | Three-second window |
Detailed information on messaging controls is available in the Client Systems Wiki.
This change is currently available in New Release.
To simplify the iLink session behavior, effective Sunday, January 6, 2019 (trade date Monday, January 7). All Convenience Gateway (CGW) iLink sessions will move to MSGW-style Session Connection and Resend Request. The following CGW features will as a result match the MSGW current state.
| iLink Convenience Gateways Behavior Harmonizations | |||
|---|---|---|---|
| Functionality | Current Behavior | New Behavior | Certification Required |
| Duplicate Session Connection Attempts |
|
|
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| Resend behavior from CME Globex to Client System |
|
|
|
These changes are currently available in New Release for customer testing.
Drop Copy is not impacted by this change.
If you have any questions or concerns, 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.
† Denotes update to the article
Starting Sunday, February 3, 2019 (trade date Monday, February 4), CME Group will launch consolidated iLink fill messages on CME Globex to reduce the number of iLink Execution Report - Fill messages. With this launch, CME Globex will consolidate Fill Execution Reports. Currently, when an aggressor order matches with multiple resting orders, CME Globex sends execution reports to the aggressor for each individual resting order.
The key client system impacts of consolidated iLink fill messages include:
All CME Group products will support Consolidated iLink Fill Messages, except the following products:
| Product | MDP3.0 Security Definition message (tag 35-MsgType=d): tag 762- SecuritySubType |
|---|---|
| CBOT Treasury Invoice Swaps | IN |
| Invoice Swap Calendar Spread | SC |
| Invoice Swap Switch Spread | SW |
Please review the Client Impact Assessment and view a brief explanatory video for additional information on Consolidated iLink Fill Messages.
† Consolidated iLink Fill Messages Frequently Asked Questions (FAQ) is now available.
| Consolidated iLink Fill Messages Timeline | |||
|---|---|---|---|
| Market Segment ID | Market Segment Description | New Release Launch | Production Launch |
| 50 68 |
CME Eurodollar Options CBOT and CME Equity Futures excluding E-mini S&P |
Monday, October 22, 2018 | Sunday, February 3, 2019 |
| Market Segment ID | Market Segment Description | New Release Launch | Production Launch |
| 54 64 72 |
CBOT and CME Equity Options CME E-mini S&P 500 Futures CBOT Commodity Futures |
Monday, October 29, 2018 | Sunday, February 24, 2019 |
| Market Segment ID | Market Segment Description | New Release Launch | Production Launch |
| 52 60 70 74 82 88 |
CME Globex FX Futures and Options II CBOT and CME Commodity Options CME Commodity Futures Hosted Partner Exchange markets and NYMEX Emissions Futures CME Eurodollar Futures CME Globex FX Futures and Options |
Monday, November 19, 2018 | Sunday, March 3, 2019 |
| 56 58 76 78 80 84 |
NYMEX and COMEX Options CBOT Treasury Options NYMEX and COMEX Metals and Alternative Market Futures NYMEX Non-Crude Energy Futures NYMEX Crude Energy Futures CBOT Treasury Futures |
Monday, January 14, 2019 | Sunday, March 10, 2019 |
Certification is not required for Consolidated iLink Fill Messages.
Please contact your Global Account Manager with any questions or concerns 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.
Effective Sunday, March 31, 2019 (trade date Monday, April 1), in response to customer requests, iLink order entry will launch a new FIX tag 5149-Memo. This new tag will allow customers to submit a free-form Note with orders to help facilitate with end-of-day trade reconciliation between trading and clearing firms.
When tag 5149-Memo is submitted on the iLink inbound messages, it will be returned on all associated iLink outbound messages. iLink tag 5149-Memo values will be passed through to Drop Copy and CME STP.
The new iLink tag 5149 can be submitted on the following messages:
Tag 5149 will be returned on the following iLink messages only when it is sent on the originating message:
| tag 5149-Memo | |||||
|---|---|---|---|---|---|
| Tag | FIX Name | Req | Valid Values | Format | Description |
| 5149 | Memo | N | -- | String (75) | Allows users to submit a free-form Note tag with a customer order and persists from order entry through clearing |
If tag 5149-Memo value on inbound messages exceeds the max length of 75 bytes, iLink will return a truncated 75 bytes from the right on the response.
Certification is not required for iLink and Drop Copy customers who wish to use the new tag 5149.
Tag 5149-Memo is currently available in New Release for customer testing.
Effective Sunday, November 4 (trade date Monday, November 5), pending completion of all regulatory review periods, WTI Houston Crude Oil futures and options will be listed for trading on CME Globex and for submission for clearing via CME ClearPort.
| WTI Houston Crude Oil Futures and Option | ||||
|---|---|---|---|---|
| Product | MDP 3.0: tag 6937-Asset | iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Gr |
iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group |
Market Data Channel |
| WTI Houston Crude Oil Futures | HCL | HC | -- | 382 |
| WTI Houston Crude Oil Option | HCO | H3 | 1N | 383 |
The WTI Houston Crude Oil futures and options will be available for customer testing in New Release on Monday, October 22.
These contracts are listed with, and subject to, the rules and regulations of NYMEX.
Effective Sunday, November 18 (trade date Monday, November 19), pending completion of all regulatory review periods, JKM Half-Month futures will be listed for trading on CME Globex and for submission for clearing via CME ClearPort.
| JKM Half-Month Futures | |||
|---|---|---|---|
| Product | MDP 3.0: tag 6937-Asset | iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group |
Market Data Channel |
| LNG Japan/Korea Marker (Platts) Front Half Month Futures | JKF | GU | 386 |
| LNG Japan/Korea Marker (Platts) Back Half Month Futures | JKB | GU | 386 |
The JKM Half-Month futures will be available for customer testing in New Release on Monday, October 29.
These contracts are listed with, and subject to, the rules and regulations of NYMEX.
Effective Sunday, November 18 (trade date Monday, November 19), Palladium TAS will be listed for trading on CME Globex and for submission for clearing via CME ClearPort.
| Palladium TAS | |||
|---|---|---|---|
| Product | MDP 3.0: tag 6937-Asset | iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group |
Market Data Channel |
| Palladium TAS | PAT | PX | 384 |
This Palladium TAS will be available for customer testing in New Release on Monday, October 29.
These contracts are listed with, and subject to, the rules and regulations of NYMEX.
† Denotes update to the article
Effective Sunday, December 2 (trade date Monday, December 3), pending regulatory approval, CME Group will list Eris Swap futures on the CBOT designated contract market (DCM) for trading on CME Globex. Eris swap futures Block Trade transactions can also be submitted via CME Direct or CME ClearPort.
The Eris Swap futures will function similarly and trade alongside the MAC Swap Futures, bringing together the two leading interest rate swap futures on a single exchange venue.
Eris Swap futures will be listed for quarterly IMM starting contracts, with fixed MAC coupons, and underlying tenors of 2, 3, 4, 5, 7, 10, 12, 15, 20, and 30-years.
The Client Impact Assessment includes information on the following:
These futures are currently available in New Release for customer testing.
Please Note: Effective end of day Friday, November 30, the streamlined SBE feed for the Eris Exchange will be decommissioned.
| Streamlined SBE Feed | Channel |
|---|---|
| Eris Exchange | 246 |
For existing current position holders of Eris USD Swap Futures which clear at CME Clearing, the migration of positions from the Eris Exchange will be performed by CME Group.
Effective this Sunday, October 28 (trade date Monday, October 29), strip for 2 annuals, 4 semi-annuals and 8 quarterlies for the U.S. Midwest Busheling Ferrous Scrap (AMM) futures will be listed on CME Globex.
| Listing U.S. Midwest Busheling Ferrous Scrap (AMM) Futures Strips | |||
|---|---|---|---|
| Product | MDP 3.0: tag 6937-Asset | iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group |
tag 762-SecuritySubType |
| U.S. Midwest Busheling Ferrous Scrap (AMM) Futures | BUS | ST | SA-Strip |
These spreads are currently available for customer testing in New Release.
These contracts are listed with, and subject to, the rules and regulations of NYMEX.
Effective Sunday, November 4 (trade date Monday, November 5), the match algorithm for Various Energy options will be changed from Configurable (tag 1142=K) to FIFO (tag 1142=F) on CME Globex.
| Changes to Various Energy Options Matching Algorithm | |||
|---|---|---|---|
| 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) |
To facilitate the change, customers are asked to cancel all Good ‘Till Cancel (GTC) and Good ‘Till Date (GTD) orders for User-Defined Spreads (UDS) after the close on Friday, November 2. After 16:00 CT on Friday, November 2 all remaining GT orders on UDS for these options and spreads will be deleted by the CME Global Command Center (GCC). |
|||
| Short-Term Crude Oil Option | C01 – C31 | LO | 1N |
| Short-Term Natural Gas Option | U01 – U31 | GZ | G2 |
| Brent Crude Oil Weekly Option | BW1 – BW5 | OT | 1T |
This change is currently available for customer testing in New Release.
These contracts are listed with, and subject to, the rules and regulations of COMEX.
Effective Sunday, November 18 (trade date Monday, November 19), and pending completion of all regulatory review periods, the contract unit of measure quantity (fix tag 1147-UnitOfMeasureQty) will be updated for the following Interest Rate futures and options:
| Changes to Contract Unit of Measure Quantity for Various Interest Rate Futures and Options | ||||
|---|---|---|---|---|
| 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 |
| Eurodollar Futures | GE | GE | 1000000 | 2500 |
| Eurodollar Options | GE | ZE | 1000000 | 2500 |
| Eurodollar Option 1 Yr MC Wk 1 | E01 | E0 | 1000000 | 2500 |
| Eurodollar Option 1 Yr MC Wk 2 | E02 | E0 | 1000000 | 2500 |
| Eurodollar Option 1 Yr MC Wk 3 | E03 | E0 | 1000000 | 2500 |
| Eurodollar Option 1 Yr MC Wk 4 | E04 | E0 | 1000000 | 2500 |
| Eurodollar Option 1 Yr MC Wk 5 | E05 | E0 | 1000000 | 2500 |
| Eurodollar Options 2 Yr MC Wk 1 | E21 | E2 | 1000000 | 2500 |
| Eurodollar Options 2 Yr MC Wk 2 | E22 | E2 | 1000000 | 2500 |
| Eurodollar Options 2 Yr MC Wk 3 | E23 | E2 | 1000000 | 2500 |
| Eurodollar Options 2 Yr MC Wk 4 | E24 | E2 | 1000000 | 2500 |
| Eurodollar Options 2 Yr MC Wk 5 | E25 | E2 | 1000000 | 2500 |
| Eurodollar Options 3 Yr MC Wk 1 | E31 | E3 | 1000000 | 2500 |
| Eurodollar Options 3 Yr MC Wk 2 | E32 | E3 | 1000000 | 2500 |
| Eurodollar Options 3 Yr MC Wk 3 | E33 | E3 | 1000000 | 2500 |
| Eurodollar Options 3 Yr MC Wk 4 | E34 | E3 | 1000000 | 2500 |
| Eurodollar Options 3 Yr MC Wk 5 | E35 | E3 | 1000000 | 2500 |
| Eurodollar 1yr MC Options | GE0 | E0 | 1000000 | 2500 |
| Eurodollar 2yr MC Options | GE2 | E2 | 1000000 | 2500 |
| Eurodollar 3yr MC Options | GE3 | E3 | 1000000 | 2500 |
| Eurodollar 4yr MC Options | GE4 | E4 | 1000000 | 2500 |
| Eurodollar 5yr MC Options | GE5 | E5 | 1000000 | 2500 |
| Eurodollar Calendar Spread Options | SPO | 8I | 1000000 | 2500 |
| Eurodollar 3-Month Mid-Curve Options | TE2 | G3 | 1000000 | 2500 |
| Eurodollar 6-Month Mid-Curve Options | TE3 | G6 | 1000000 | 2500 |
| Eurodollar 9-Month Mid-Curve Options | TE4 | G4 | 1000000 | 2500 |
| 1 Month Eurodollar Futures | GLB | EM | 3000000 | 2500 |
| 30 Day Federal Funds Futures | ZQ | ZQ | 5000000 | 4167 |
| 30 Day Federal Funds Options | OZQ | CF | 5000000 | 4167 |
| 30 Day Federal Funds 12 Month Midcurve Options | ZQ1 | C7 | 5000000 | 4167 |
| 30 Day Federal Funds 6 Month Midcurve Options | ZQ6 | C6 | 5000000 | 4167 |
Please Note: This change is administrative and does not alter in any way the trading characteristics or the economic values of these Interest Rate futures and options. Please review SER 8251 for additional details.
This change is currently available in New Release for customer testing.
These contracts are listed with, and subject to, the rules and regulations of the CME and CBOT.
Effective Sunday, November 18 (trade date Monday, November 19), the price format for the following Fuel Oil futures will be changed as follows.
<| Change to Price Format for Fuel Oil Futures | ||||
|---|---|---|---|---|
| Product | MDP 3.0: tag 6937-Asset | iLink: tag 55-Symbol MDP 3.0 tag 1151 - Security Group |
Current tag 9787-DisplayFactor | New tag 9787-DisplayFactor |
| Singapore Fuel Oil 380cst (Platts) vs. European 3.5%Fuel Oil Barges FOB Rdam (Platts) Futures | EVC | RFH | 0.01 | 0.001 |
| Mini Singapore Fuel Oil 380cst (Platts) vs. European 3.5%Fuel Oil Barges FOB Rdam (Platts) Futures | MSB | RF | 0.01 | 0.001 |
These changes will be available for customer testing in New Release on Monday, November 5.
These contracts are listed with, and subject to, the rules and regulations of NYMEX.
Effective Sunday, November 18 (trade date Monday, November 19), the listing cycle for the following CME FX Link Spreads will be expanded on CME Globex.
| Listing Cycle Expansion for CME FX Link 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 |
| Euro / US Dollar FX Link Spread | EURUSD | 6E |
|
|
US Dollar / Canadian Dollar FX Link Spread |
USDCAD | 6C |
|
|
British Pound / US Dollar FX Link Spread |
GBPUSD | 6B |
|
|
These spreads will be available for customer testing in New Release on Monday, November 5.
These spreads are listed with, and subject to, the rules and regulations of CME.
Effective Sunday, November 18 (trade date Monday, November 19), the listing cycle for the following Aluminum Futures will be expanded on CME Globex.
| Listing Cycle Expansion for Aluminum 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 |
| Alumina FOB Australia (Platts) Futures | ALA | ST | Monthly expiries for the current year and the next calendar year. | Monthly expiries for the current year and the next 2 calendar year. |
| Alumina FOB Australia (Metal Bulletin) Futures | ALB | ST | 12 consecutive expiries. | Monthly expiries for the current year and the next 2 calendar year. |
These changes will be available for customer testing in New Release on Monday, November 5.
These contracts are listed with, and subject to, the rules and regulations of COMEX.
Effective with the listing of the September 2019 quarterly options, these CME FX options will reflect the following changes:
These changes will be in effect for all option instruments that expire after Sunday, June 9, 2019. Currently listed instruments, and any instruments that expire before June 9, 2019, will continue to use the 2:00 pm expiration and 2:00 pm fixing price for exercise.
Additional information on these changes including a two minute overview video can be found at cmegroup.com/10am.
The instrument last trade date and time can be found by leveraging FIX tags 865=7 (Last eligible trade date) and 1145-EventTime in the Security Definition (tag 35-MsgType=d) message.
The Fixing Price data blocks are sent in the MDP 3.0 Market Data Incremental Refresh (tag 35-MsgType=X) with the following attributes:
This change is currently available for customer testing in New Release.
These contracts are listed with, and subject to, the rules and regulations of CME.