Tuesday, September 29
Skinners’ Hall, London
Critical Updates
Final Stunnel Certificate Pinning Notification
End of Q2
Starting after Q2 2026 TT will no longer provide/update the stunnel.zip file which customers might be using to perform certificate pinning. The final update to the stunnel.zip file occurred on April 2, 2026 and is now available for download. The final certificate in the stunnel.zip file expires on Oct 17, 2026. Prior to Oct 17, 2026 TT will migrate the CA from Digicert to AWS and new certificates will be emplaced (this could happen as early in UAT as September 1, 2026). These certificates will have much shorter lifetimes and will be rotated more often (eventually every ~40 days).
This is driven by the CA/Browser Forum decision to reduce certificate lifetimes to 47 days. Given that lifetime it’s no longer viable to create a certificate, provide the updated stunnel.zip file to customers for integration, and then emplace the certificate onto our endpoints.
Only customers who download the stunnel.zip file from https://library.tradingtechnologies.com/tt-fix/general/stunnel.zip are impacted. Affected customers should start migrating to utilize their local machine’s certificate trust store. Digicert and AWS are both established Certificate Authorities and should be available in the trust stores of modern operating systems.
Updates to the Configuring client connectivity (https://library.tradingtechnologies.com/tt-fix/order-routing/configuring-client-connectivity.html) will be made in the coming weeks to account for this adjustment.
ICE: Product Group Mapping Update
TBD
As part of an upcoming update, TT will update product group mappings for certain products based on their Market Type ID. This change is currently in TT UAT for review.
Clients are requested to ensure they are properly permissioned and configured for the updated product groups to avoid any disruption in access or trading. This corresponds to Step 5,6,7 (Subscriber Market Data) in the setup process, https://library.tradingtechnologies.com/user-setup/ice-configuring-user-access-to-ice.html
Market Type ID 225 (MIC: IFEU)
- Products: JKB, CHP, JTB, JTO, JKO, JKC, JTC, CHB, JTB|JKB, JTC|JKC
- Current Product Group: IFSG (ICE Futures SG)
- New Product Group: IFEC (IFEU Commodities)
Market Type ID 237 (MIC: NDEX)
- Products: GOX, GOV, GOZ, GOW, GOY, and related spreads
- Current Product Group: IFSG (ICE Futures SG)
- New Product Group: ENDEX (ICE Endex)
Market Type ID 259 (MIC: IFAD)
- Products: INA, GAC
- Current Product Group: IFSG (ICE Futures SG)
- New Product Group: IFAD (ICE Futures Abu Dhabi – Non-S2F)
Nord Pool: Throttling Messages Unavailability
May 27
The Throttling messages received from Nord Pool are currently displayed as News messages on TT. On May 27, Nord Pool will change the endpoints from which these messages are obtained. TT will not be ready for this change on Day 1. TT’s readiness date will be communicated in subsequent System News. Till that time, these throttling messages will not be available on TT.
Fenics: Support Sender Sub Id / Tag 50
June 22
On June 22, TT will offer support for the optional Sender Sub ID / Tag 50 field on order messages for Fenics. This field will be configured at a user level in TT User Setup. Customers trading through FIX can also utilize the FIX Tag 50 for sending the relevant value on their order messages to TT.
Customers who do not wish to configure or use this tag will experience no impact to their existing order entry flows for Fenics.
This feature is currently available in the TT UAT environment for customer testing.
TFEX: Support for Option Strategies
June 22
TFEX will add support for strategies on the S50 Index and USD Options on 22 June. Existing TFEX customers will be able to trade these strategies using their existing TFEX setup on TT.
These option strategies are available for testing in the TT UAT environment. Customers must use the TFEX_DEV market in TT UAT, as this market connects to the exchange NEXT-B environment, which is required by the exchange for this testing.
Support for New LME Cross Order Functionality
June 22
On June 22, LME will add support for Cross Order functionality on its electronic trading platform, LMESelect.
This feature is available for testing in UAT.
TT will support this functionality on launch for both TT and LMETrader, with support via TT FIX to come at a later date.
Note: TT provides support for LME Cross Orders only through the TT Workspace and LMETrader. LME Cross Order entry through FIX is not yet supported.
Additional Resources
CME Globex Connectivity Upgrades and Changes for Listed Derivatives Markets
June 27
Effective Date: June 27, 2026 (updated from original April 2026 timeline). CME Group is replacing end-of-life network equipment supporting listed derivatives connectivity at CME Globex Hubs. For multicast market data 1Gbps services will no longer support MDP 3 multicast market data.
No impact to TT connectivity. TT already carries 10G GLINK circuits in Chicago and 10G Econnect circuits in New York across all CME Globex Hubs.
Additional Resources
CME Globex Connectivity Upgrades
NASDAQ Commodities (NDAQ_EU) Decommission
June 30
On January 28, 2025, Nasdaq and Euronext announced an agreement to transfer open interest in relevant commodities products to Euronext and its clearing house “Euronext Clearing”.
Nasdaq Clearing AB and Nasdaq Oslo ASA have initiated formal service withdrawal processes for all Commodities products and services, effective June 27, 2025. This coordinated withdrawal follows the sale of Nordic power futures business to Euronext Clearing.
The Service Withdrawal Date is set to June 30, 2026, for both clearing and exchange services.
As of this date, TT will decommission access to the NDAQ_EU market.
Additional Resources
LME : TVTIC mapping change
Q2 2026
Currently, TT uses the TrdMatchID (Tag 880) published by LME to populate the TVTIC value for fills on both the spread and the individual legs. This value is displayed in the “ExchTransID” column on TTW.
At LME’s direction, TT will modify this logic for leg fills only, so that if the trade is based on an implied TT will use the LegAllocID (Tag 1366) published by LME to populate the field mapped to TVTIC. The TVTIC values used for the spread will not change.
NOTE: This change has temporarily been removed from UAT as we prepare to deploy changes for the introduction of LME Cross functionality next weekend. This change will be redeployed to UAT after June 22 so that clients have sufficient time to test before Production deployment.
SGX : Fee change for FX products
July 1
SGX would like to inform its customers that effective from 1 July 2026, market data fees will be applicable for SGX Listed FX Derivatives Data.
SGX Market Data Policy has been updated to include and reflect the terms of use of SGX Listed FX Derivatives Data, including but not limited to unit of count, non-display usage etc. Please refer to https://www.sgx.com/data-connectivity/sgx-market-data-policy.
WSE: API Upgrade
July 6
WSE will upgrade the APIs used for both market data and order entry on July 6. On this date, the current API will be decommissioned and the market will be fully migrated to the new API versions.
- No functional changes are being implemented on the market data feed for display on TT
- New Order Tag Defaults (OTDs) for Account Type and Trading Capacity will be introduced, and may be configured on TT
- TT will support the Self Match Prevention feature introduced along with this upgrade
- Customers are strongly advised to cancel any pending GTC/GTD/GTT orders before close of trading on the last day of the old API
TT’s participation for the mock tests being held by WSE for these tests is as below –
- TT will participated in the second mock test on June 6
- Only the W20 Sep26 future is in scope for mock testing
- TT will upload the contracts received during the mock on a separate symbol – W20_MOCK, to avoid any impact to the contracts that are currently tradable in Production
- TT will participate in the third mock test on June 27, and TT will be open for customers to participate in this test
Availability of the TT UAT environment will be communicated in subsequent System News.
EEX : Support for FOK orders
July 6
EEX will add support for FOK orders on July 6. This functionality is available in the EEX simulation environment, and will be available in production from July 6.
For FOK orders, the SMP instructions Cancel Aggressive and Cancel Passive (default at EEX) are supported. However, as Cancel Both could lead to partial fulfilment, this instruction type is not supported for FOK. Any FOK order submitted with the Cancel Both instruction will therefore be rejected.
TT will not support this feature on launch, but availability is expected in Q3.
Upcoming TT Desktop (TTD) Minimum Version Mandates
July 17
To maintain platform security and performance, TT has implemented minimum version requirements for all TTD users. Customers must plan their upgrades accordingly to avoid service interruptions. Note: The current TTD minimum version is 24.1.2.
Important Dates:
- July 17, 2026: Reminder – TTD v25.0.0 becomes the mandatory minimum version. Users on lower versions will be unable to log in after this date.
- April 2027 (Target): TTD v26.0.0 is scheduled to become the minimum version. Note: TTD v26.0.0 is currently available for download.
Customers who utilize the Excel Integration feature with TTD should also review the TT Excel Add In Expiration section above for information on an upcoming certificate expiry on April 29.
Download and Installation Guide
CDE: Gateway Maintenance During Market Hours
July 17
Coinbase Derivatives Exchange (CDE) will conduct planned rolling (A/B) deployments of FIX order entry gateways. Clients may experience a momentary disconnect followed by automatic reconnect. No client action is required.
- Friday, July 17, 2026 ~15:00
If CancelOnDisconnect is enabled on an Order Entry session on CDE portal, all resting orders will be canceled as a result of this procedure. If not enabled, all resting orders will remain on the book during and after rolling deploy.
Clients should monitor https://status.cde.coinbase.com/ for exact start and end timings.
Euronext: RFC without leg prices
TBD
Euronext supports sending a Request for Cross on a multi-leg instrument without specifying the individual leg prices, however this is not currently supported on TT. Support for this feature via TT will be communicated in due course.
CME STP Google Cloud Migration
July 31
On July 31, CME will migrate the STP FIX API from on-premises infrastructure to Google Cloud. TT support for CME STP FIX connectivity to Google Cloud is now available in UAT. Clients currently using the legacy STP IP addresses should update their configurations to the new Google Cloud IP addresses.
UAT: STP FIX Details (Google Cloud)
- Remote IP Address*: 208.112.193.131, Port: 443
Backup Remote IP Address*: 208.112.193.10, Port: 443 - Enable SSL check
- URL: stpfix.api.uat.cmegroup.com
TT is completing the required AutoCert conformance for the cloud migration, once finished, the remote IP address will be published and system news will be updated.
CME has pushed the migration deadline to July 31, 2026. Clients are advised to migrate to the STP FIX service hosted on Google Cloud before this updated deadline.
Further updates will be communicated via System News if required.
Additional Resources
CME STP FIX – Update to New Release Host Connectivity
CME STP FIX on Google Cloud – Production Internet Connectivity
HKEX: OAPI RHEL library upgrade and recertification
September 2026
HKEX has announced an upgrade to its OAPI library from RHEL7 to RHEL8. TT will plan for and complete the required recertification with HKEX for this activity by the required date of September 22. No customer action is required.
TT will facilitate customer participation in upcoming exchange practice sessions, which are optional, however customers are required by the exchange to submit a declaration of readiness.
The deployment of these changes to TT UAT will be confirmed in subsequent System News.
Eurex/EEX/NODAL – T7 15.0 Upgrade
November 9
Eurex/EEX and NODAL have announced dates for the T7 15.0 upgrade , which will be launched in production on November 09 . Changes in simulation will be available from Aug 31 onwards .
The following enhancements will be introduced in T7 Release 15.0:
- Sponsored Access Stop Trading Functionality
- Improvements of the Enhanced Drop Copy Interface (EDCI)
- Off Book Usability Features
- Flex Instruments for Eurex EnLight
TT is awaiting preliminary specifications to determine any changes needed at our end .
HKEX: Derivatives After Hours Trading (AHT) Enhancements
Q4 2026
HKEX will introduce the below enhancements to their After Hours Trading (AHT) session in Q2 2026:
- Equity index derivative product coverage expansion for US and UK Holidays
- Currently, on Memorial Day (US) and Spring Bank Holiday (UK), in the AHT session on HKEX, only the Currency and Metals AHT products are enabled for trading. This will be modified to include all AHT eligible products for trading on these US/UK holidays.
- On Christmas day, currently, only the Currency products are eligible for AHT session. This will be modified to include all MSCI and Currency products for trading on Christmas day.
- There is no change to the products that will be available for trading during the Day session on any of the holidays.
- Shortening of the market break between the Day and AHT session
- Currently, the market break between the Day and AHT session is 45 minutes. HKEX plans to start the AHT session 15 mins earlier, by reducing the market break to 30 mins.
- Widening of AHT Price Limits
- Currently, the price limits on all futures contracts traded in the AHT session is + or – 5%, and orders outside these price limits are rejected.
- The stock index futures traded on HKEX will be categorized into 2 baskets – flagship and non-flagship futures. While the initial price limits will be set at + or – 5% for both, those for the flagship products will be subject to a quarterly review, and can be periodically modified by HKEX.
- Index Option – Trade Resumption
- For the options contracts that are halted due to HKEX’s Trade Halt Mechanism, trading will be automatically resumed based on a deterministic model built by HKEX.
- Enhancement to the reference price determination methodology
- HKEX will modify their methodology used for determining the reference prices.
- Orders outside price limit boundary
- For orders entered during the Day session, and which may be outside the AHT price limits (price limits apply only to AHT session) and are carried over to the AHT session, such orders will not be rejected or canceled and can get traded outside the AHT price limits.
MexDer: Trading Platform Migration (Eqlipse)
Q4, 2026
In Q4, MexDer will replace its current trading platform and matching engine with the Eqlipse multi-matching engine from Nasdaq, impacting both order entry and market data.
Trading Technologies is aware of this upgrade, actively working through requirements, and will be prepared for the migration in Q4. Further details on UAT availability, production launch date, etc. will be shared as the dates approach. For additional information from the exchange, please see their website:
INE: Introduction of Market Orders
TBD
INE plans to introduce market orders on its platform, however the go-live date is yet to be announced.
Plans for the addition of this feature on TT will be communicated via System News in due course.
Updated: B3 FIX Order Entry API Decommission
previous title “Updated: B3: Binary Protocol”
TBD
TT will discontinue support for the FIX Order Entry API on a date TBD. After this time, only Binary Order Entry connections will be supported.
Customers currently using FIX order entry must migrate to Binary connections prior to this date to avoid any disruption in trading.
Client Notes:
- B3 limits the “Entering Trader” field to 5 characters on the Binary Order Entry API.
- B3 enforces a throttle limit of 150 orders per second. Orders exceeding this rate will be rejected. Clients can configure the Max Order Rate (orders/sec) setting on B3 Binary connections to manage this limit.
Nord Pool: Trading API 2.0
TBD
Nord Pool plans to upgrade their API used for order entry and order management to a new version of Trading API 2.0 by end of May / early June of 2026. Their old API will continue to be operational in parallel till further notice.
TT will continue to be on the old API post the go live of this API upgrade, and TT’s plans to move to the new API will be communicated in subsequent System News.
CDE: Mandatory Sequence Number Reset on Login
TBD
Coinbase Derivatives Exchange (CDE) will introduce a mandatory session-management change requiring all clients to reset sequence numbers on every Logon for all session-based order entry, market data, and drop copy APIs. TT will make the necessary platform updates to support this exchange requirement, and no client action is required.
Please note that CDE has postponed this change until later this year. The new effective date is still being determined and will be communicated once available.
Additional Resources
Mandatory Sequence Number Reset on Logon
Notice 26-22.1 – Deferral of Mandatory Sequence Reset Number Reset on Logon
Additional Resources
HKEX: ODP API Upgrade
Q2 2028
HKEX plans to decommission the OAPI used for order entry in Q2 of 2028. In its place, a new ODP Binary API will be launched. Below are the expected timelines for this project –
- Stage 1 – Post Trade API
- Go Live – Q1 2028
- This involves migration of the current DCASS system to ODP-PT.
- TT does not connect to the current DCASS system, and hence no impact to TT.
- Stage 2 – Migration of the order entry and enhancements to market data API
- Go Live – Q2 2028
- Market Rehearsals in Q1 2028
- Exchange Certification testing to be completed in Q3/Q4 2027
- Expected TT UAT availability – End of Q2 – Mid of Q3
- Exchange test environment availability – Q4 2026
Further details will be provided in subsequent System News.
Disaster Recovery and Mock Testing
MexDer: Disaster Recovery Test
June 20
MexDer will be performing a Disaster Recovery Plan (DRP) test on Saturday, June 20th, 2026, from 10:00 AM to 1:00 PM Mexico City time. TT will provide support to all customers interested in participating in this exercise.
Test Procedure:
- Start: At the beginning of the trading session, TT will be connected to the Primary Production IPs. Clients are encouraged to begin entering orders and viewing market data as you normally would.
- During: A system failure will be simulated in the middle of the session.
- Transition: Once the failure occurs. TT will switch to the DR site.
- End: Continue entering orders and viewing market data in the DR environment until the session closes at 1:00 PM (Mexico City time). After the test, TT will switch back to the Primary site.
ASX : Production Business Continuity Testing
June 27
ASX will conduct a business continuity test in the production ASX 24 environment, including component failover from the primary ASX data centre (ALC) to the Secondary Data Centre (SDC). It is expected that all trading participants will participate in the test.
TT will provide support to all customers interested in participating in this exercise.
GFO-X : Market Rehearsal
July 11
GFO-X intends to deploy a new software release to Production Environment over the weekend of 11th to 12th July. The new release will be deployed ahead of the market open on Monday 13 July.
On the weekend before that , on 11th of July , GFO- X is offering an opportunity to its customers to participate in a dress rehearsal test . Vendors, Participants, and Clients are encouraged to perform testing on Saturday 11th July.
TT will provide support to all customers interested in participating in this exercise. Any interested participant should reach out to their onboarding representative .
TFEX : Q3 2026 Order Gateway Rebalance
July 18
TFEX will conduct its Q3 order gateway rebalance rebalance exercise on 18 July. Affected customers will be notified by TFEX in the week ending 26 Jun. Such customers are requested to confirm their participation in this test to TT Service teams by 3 July.
New Markets
CME BrokerTec Chicago
The CME has launched a new US Treasury Central Limit Order Book, BrokerTec Chicago, which is co-located with CME’s Derivatives markets in Aurora. Additional details from the CME on this initiative may be found on the exchange website here:
On the TT platform, this market will be referred to as CME BrokerTec Chicago (CME_BrokerTec_Chicago).
Following are the anticipated milestones for this project:
| Milestone | Expected Date | Delivered Date |
| Delivery of New Market Onboarding Guide | 06/05/2026 | 06/05/2026 |
| TT Deployment to UAT | 06/05/2026 | 06/09/2026 |
| Exchange Go-Live | TBC | TBC |
Additional details on availability Production will be provided in due course.
New Products
Please Note: Trading Technologies’ default approach is to support every new product listed, on the product’s first day of trading, for all markets available on the TT trading platform. If a new product listing receives high-profile attention or is of significant industry importance, TT may announce support for it below. For all other new products announced by exchanges but not listed below, users should expect that TT provides support unless otherwise noted.
CME Eris Options
TBD
CME plans to launch Eris Options on CME Globex on Sunday, June 14. TT support for these products is currently under development. We will provide an update on the expected availability date once implementation and testing are complete.
- Options on 2-Year Eris SOFR Swap Futures (YIT)
- Options on 5-Year Eris SOFR Swap Futures (YIW)
- Options on 10-Year Eris SOFR Swap Futures (YIY)
- Test Options on 2-Year Eris SOFR Swap Futures (0IT)
Additional Resources
New Channel ID 350 for Eris Options
SGX : Baltic Handysize ATL Futures
June 22
SGX has announced the introduction of the following Contracts Futures and Swaps on Monday, 22 June 2026:
i) SGX Baltic Handysize Time Charter Basket (4 Routes) ATL FFA (HA)
ii) SGX Baltic Handysize Time Charter Average (4 Routes) ATL Futures (HAF)
The Exchange will list up to 3 calendar years starting with the July 2026 contract, with 12 consecutive months added upon expiry in December.
TT plans to support these products by the end of June.
CME Single Stock Futures
TBD
CME has announced plans to introduce Single Stock Futures (SSF). TT is aware of the upcoming exchange initiative and is evaluating the platform changes required to support these products.
The exchange has not yet announced a production go-live date. TT will provide updates on product availability and support timelines as additional information becomes available.
Please monitor TT System News for future announcements.
CME Single Stock Futures – 2026
ASX : Bloomberg AusBond Index Futures
August 24
ASX is targeting the launch of two new interest rate futures contracts tracking the Bloomberg AusBond Composite (BACM0) and Credit (BACR0) Indices.ASX is targeting the 24th of August to go-live with both futures contracts.The external ASX24 test environment is expected to be available from 13th of July 2026.
HKEX: Introduction of new contracts on Partition 3
TBD
HKEX will introduce new futures and options (both monthly and weekly) options contracts on new product symbols VAA and VBB. The market data for these will be obtained from a new partition (partition 3) which will be added by HKEX. These contracts are currently available in TT UAT for customer testing. Customers are required by the exchange to participate in at least one of the test sessions scheduled on every Thursday till 16 April, and confirm their participation to the exchange. Customers can participate in this test from the TT UAT environment.
Please note that, currently, both the monthly and weekly contracts are displayed on TT under the same product symbols VAA and VBB. TT will release a change to TT UAT at a later date to separate the weekly options into separate symbols of VAAW and VBBW. This change though will not impact the tradability of these contracts, and these contracts can be traded through TT UAT even today.