Release Notes

May 2026 - UAT Environment

UAT Complete Production Start Production Complete Type Component Release Note

05/21/2026

05/29/2026

Improvements

Exchanges

TT now supports sending Sender Sub Id / Tag 50 on Fenics.
A new OTD of Sender Sub ID has been added under the User Level Settings on TTUS. Any value populated in this field will be sent to the exchange on Tag 50.
FIX users can send required value on Tag 50 on their messages to TT.

Please note that this field will be visible on TTUS from 21 May in UAT, and from 29 May in Prod, but this will not be usable until 5 Jun in UAT, and 12 Jun in Prod.

(Ref 207450)

05/18/2026

Improvements

Exchanges

TT has updated the TVTIC values mapping to be populated in Tag 880 (TrdMatchID) as follows:

Current Behavior:
For all Carry Orders (MLEGs), the TrdMatchID value for the Parent Carry in tag 880 is always the TrdMatchID for the legs

New Behavior
For Carry Orders with an Implied trade, the TradeMatchID value for the legs will be set as tag 1366 (LegAllocID)
For Carry Orders with an Explicit trade, the TradeMatchID value for the legs will continue to be set as Tag880 (TrdMatchID)

This change may be observed in the "ExchTransID" column in the TT Audit trail.

For more information, please reach out to your Onboarding / Service Management representative.

(Ref 207918)

05/08/2026

Improvements

Orders

The TT OMS system now manages care orders according to the Time-In-Force (TIF) set on each care order. For example, "Day" care orders will now automatically be cancelled by TT at the end of the trading day and removed from the Order Book and/or the Orders and Fills widget (OFW). This is a change from previous behavior, where care orders in TT remained in the Order Book until manually canceled by users, regardless of the TIF. However, TT will not automatically expire care orders that have unreleased fills. These orders will persist, requiring user action to resolve the pending notification.

(Ref 205354)

05/06/2026

05/06/2026

05/06/2026

Improvements

TT Core SDK

Adds support for GS OTC Commodity Block venue (v2.1.1.1)

(Ref 205451)

05/05/2026

Improvements

Order Entry

We have refined the current “Seed blank account when selecting a profile” feature to better meet the needs of global firms to default a specific account per region. Specifically, in order entry widgets, when the global Preference > Orders > "Seed blank Account for profile without..." is enabled and an account is already selected, the currently selected account will now persist when a trader selects a new profile. The selected account will only be overridden and seeded with a new one if one of the following two conditions is met: (1) the new profile has only one account assigned to it in Setup (seed that account), or (2) the new profile has one matching local profile rule for the user and specifies an account on that local rule (seed that account). This revised logic will always apply when using the ”seed blank” preference with no need to opt in via another setting.

(Ref 205683)

05/05/2026

Improvements

Order Entry

The Order Ticket now offers enhanced price transparency when inputting an order quantity without a specific price. It displays the average price for the proposed order and, optionally, the minimum/maximum aggressive price. These values assist users in determining whether to populate the price field with the aggressive price before submission. The minimum/maximum aggressive price is derived from the total available market depth for the entered quantity.

Both the "Average Order Price" and the "Min/Max aggressive price" automatically recalculate and update with changing market conditions, even after a maximum aggressive price has been chosen. This feature is functional regardless of where the Order Ticket was opened from within the market depth and is available on exchanges without a native Market order type (e.g., EPEX and Nord Pool).

(Ref 205391)

05/05/2026

Fixes

Orders

Fixed a timezone conversion issue affecting session start times for CME and MIC markets, which caused some orders from previous sessions to appear incorrectly.

(Ref 205374)

05/05/2026

Improvements

Market Data

The Product Grid now includes an optional "OpenInterest" column.

(Ref 205313)

05/05/2026

Improvements

Market Data

The Market Grid now includes an optional "OpenInterest" column.

(Ref 205285)

05/05/2026

Improvements

Order Entry

Child orders of care orders can now only be placed and/or modified with Time-In-Force (TIFs) that expire sooner than or at the same time as the TIF of the care order. This ensures that the child orders will expire along with the parent care order, preventing them from remaining active in the market longer than the care order's duration and potentially causing unwanted fills.

(Ref 205284)

05/05/2026

Improvements

Order Entry

You can now paste text from the system clipboard into any price input control in the TT front-end application using the standard Ctrl+V keyboard shortcut. The application validates pasted content against the same rules and behaviors as manually typed input.

(Ref 205283)

05/05/2026

Improvements

Algo Dashboard

The Algo Dashboard (AD) now automatically selects algo orders when opened from the Order Book or Orders and Fills widget (OFW), reducing manual actions. The parameters pane will automatically appear, and parameter values common to the selected orders will be pre-populated, making it easier to adjust settings on multiple algo orders simultaneously.

(Ref 205281)

05/05/2026

Improvements

Fills

In the Orders and Fills widget (OFW) you can now assign and unassign "head" fills of multileg spread orders, e.g., the spread fill itself, to care orders. The associated leg fills will also be included as part of the assign/unassign action.

(Ref 205280)

05/05/2026

Improvements

Order Entry

You can now open multiple order tickets (OTs) simultaneously, configure the orders separately in each, and submit them all at once with a customizable hotkey. This can be useful when preparing for a major economic news release, or when working care orders on multi-leg instruments.

(Ref 205279)

05/05/2026

Improvements

Fills

In the Orders and Fills widget (OFW) you can now assign "synthetic" fills, e.g., fill records generated by TT algos, to care orders. Previously only the native fills could be assigned.

(Ref 205275)

05/05/2026

Improvements

Order Entry

The Order Ticket now allows you to manually resize the width of custom action buttons and order parameter drop-down controls by dragging with the left mouse button. After adjusting the size to your preference, you can save it as your default setting. As part of this work, the buy/sell leg information for multi-leg instruments (when using single button broker mode) has been relocated to the top of the Order Ticket to utilize the available width more effectively for long instrument names

(Ref 205221)

05/05/2026

Improvements

Order Entry

The Order Ticket has a new right click setting that resizes the ticket to display all parameters when loading an order type that requires additional parameters. This setting offers three choices: (1) "Minimal auto-expand" which behaves the same as the previous behavior when the "Retain Order Ticket fixed size (do not auto-expand)" setting was unchecked, (2)  "Fully auto-expand" which resizes the OT when an order is selected to display all associated parameters; and (3) "Retain saved fixed size" which behaves the same as the previous behavior when the "Retain Order Ticket fixed size (do not auto-expand)" setting was checked.

(Ref 205209)

05/05/2026

Improvements

Order Entry

The Order Ticket (OT) now allows instrument selection via the Market Explorer, accessible from the upper left corner. Details of the current instrument are displayed with dynamic links for quick edits. Selecting a new instrument from a different Exchange, Product, or Product Type will re-seed the OT, just as opening an entirely new OT with that new instrument would. Selecting a new instrument from the same Exchange, Product, and Product Type (e.g., a different month or strike price) will re-seed the OT, but retain the order quantity, type, profile, account, and other seeded information. The Market Explorer and instrument details can optionally be hidden via the right-click "Show/Hide" menu and saved as the default view.

(Ref 205200)

05/05/2026

Improvements

Order Entry

The Custom Action Button (CAB) configuration dialog now allows you to customize the background color and text label color of each CAB.

(Ref 205113)

05/05/2026

Improvements

Order Entry

You can now change the vertical display order of custom action buttons via left mouse drag-n-drop in their configuration dialog. Previously you could not change the order and had to redo all the buttons just to have a new button appear at the top.

(Ref 205112)

05/05/2026

Improvements

Order Entry

Custom Action Buttons now use the same proportional font as adjacent dropdown controls, replacing the previous fixed width font that did not match the rest of the nearby controls.

(Ref 205111)

05/05/2026

Improvements

Options

In Market Grid the list of options products related to a future that is displayed via the "Related Contracts..." feature now includes the expiration date and the name of the option product. Previously the list displayed as symbols only (without the exp date and description).

(Ref 205110)

05/05/2026

Improvements

Order Entry

The Order Ticket is now available from the main widget menu as an option in the "Order Management" section.

(Ref 205057)

05/05/2026

Improvements

Order Entry

The Order Ticket now includes an optional RFQ button that submits an RFQ for the current instrument when clicked. The button visibility can be managed via the "Show/Hide" right click menu.

(Ref 205056)

05/05/2026

Improvements

Orders

When you assign a spread fill on a care order, TT now also assigns the leg fills.

(Ref 205055)

05/05/2026

Improvements

Order Entry

We now restrict child orders of care orders to have a Time-in-Force (TIF) that will expire along with the parent care order. This prevents creating child orders that could potentially work in the market for longer than the time of the care order and cause unwanted fills.

(Ref 205053)

05/05/2026

Fixes

Order Book

Fixed an issue that sometimes prevented the FillQty on a care order to not be updated correctly in the Order Book or Orders and Fills widget (OFW).

(Ref 205051)

05/05/2026

Improvements

MD Trader

We have disabled the Manual fill order type from MD Trader for care orders on multi-leg instruments because unlike the Order Ticket, MD Trader does not support specifying the leg fill prices.

(Ref 205050)

05/05/2026

Improvements

Orders

In the Orders and Fills widget (OFW) you can view the fills of an order by clicking the "eyeball" icon on the order row. We have improved this feature to view all the fills of a combined care order, e.g., bulked or stitched order, to provide an aggregated view of the fills of all the constituent care orders. Now, when you click the eyeball on a combined (bulked, stitched) care order and the order is fully or partially filled, the eyeballs of all the constituent care orders will also be selected and disabled by default, and will display the fills of the constituent care orders. To view the fills for an individual constituent order, you can unselect the eyeball of the combined care order and select the desired child care order.

(Ref 205049)

05/05/2026

Improvements

Fills

To properly identify fills that were executed outside of TT, we have added two new columns in the Order Book, Fills widget, OFW, Audit Trail and Audit Query widget: (1) "ExchExecID" - assigned by the exchange as a unique identifier for a fill, and (2) "TrdMatchID" - assigned by the exchange as an identifier of the match event of a trade.

(Ref 205048)

05/05/2026

Improvements

Positions

We have extended the current Position Manager widget feature that supports upload of local fills via csv files to also support csv upload of Admin Fills and SOD records. As part of this work we also support including exchange-facing IDs in the csv files to properly identify fills that were executed outside of TT. These fields are ClOrderID, ExchOrderID, ExchExecID and TrdMatchID.

(Ref 205047)

05/05/2026

Fixes

Strategy Creation

Fixed a leg ordering issue that prevented stitching two Eurex option care orders into a user-defined strategy.

(Ref 205045)

05/05/2026

Fixes

Order Book

Fixed an issue when using the right click "Edit Order" functionality in the Order Book, with "Enable broker mode" setting set in the Order Ticket, submitting the change request submitted using the <Enter> button on your keyboard caused a new order to be placed, instead of updating the existing order.

(Ref 205043)

05/05/2026

Improvements

Fills

The current method to allocate a filled order in the Allocation pane of the Orders and Fills widget (OFW) is a multi-step process requiring numerous clicks. To simplify this, cells in the "Allocated" column of the OFW on fully filled order rows now display a button labeled "Allocate". This button enables only when a single fully filled row is selected and one or more routing rules have been defined. Left-clicking the button presents a drop-down list of user-configured routing rules. Select a routing rule, click "OK", and the fill will be allocated according to the chosen Routing Rule.

(Ref 205041)

05/04/2026

Improvements

Exchanges

Customers may now access the MIAX_FUT_NY market in UAT. This market supports trading on the futures products which are supported from the MIAX New York data center, including their proprietary futures contracts on Tini B100 Index Futures (TBQ).

Please contact your Onboarding representative for access to the MIAX_FUT_NY market.

For more details please refer,
TT Help Library: https://library.tradingtechnologies.com/user-setup/miax-fut-ny-overview.html
TT Onboarding guide: https://library.tradingtechnologies.com/downloads/MIAX_FUT_NY_Onboarding_Guide.pdf

(Ref 207361)

05/04/2026

05/10/2026

Improvements

Exchanges

Nickel (NI) futures and options on the Shanghai Futures Exchange (SHFE) are now available for trading through TT.
Any customers interested in trading these should have the SHFE_1 market data subscription enabled. Customers can contact TT Onboarding or Service teams for assistance in enabling this.

(Ref 207318)

05/04/2026

05/04/2026

Improvements

Autospreader

Updated the formula used in Autospreader to calculate Fill Qty on Parent order by evaluating a valid range of lower and upper bounds across all legs.

This new logic maximizes reported parent fills without exceeding any individual leg's actual fill capacity

(Ref 207292)

05/04/2026

Improvements

FIX Services

Euronext has added support for instrument Series Term of Half Year on their API messages. Correspondingly, TT has introduced a new value to tag 18211 (DeliveryTerm) and 18212 (LegDeliveryTerm) in the Instrument and the Instrument leg components in the FIX messages in Drop copy, Order Routing and market data sessions.
1. Z:Half Year

Please note that there are no Half Year contracts available for trading on Euronext currently. This new value on Tag 18211 / 18212 will be available when such contracts are added on Euronext.

(Ref 207214)

Version: v311

05/04/2026

Plan

FIX Services

UAT deployment of the v311 FIX Drop Copy, FIX Order Routing and FIX Market Data services began Apr 30th.

Production deployment of the services will be start over the following five weeks.

This release includes changes to the FIX XML schema files. Clients are strongly encouraged to download and deploy the latest XML schema files from the URL below prior to release: [https://library.tradingtechnologies.com/tt-fix/general/System_Overview.html]

Release Notes for FIX v311 and prior releases can be reviewed at any time by going to [https://library.tradingtechnologies.com/release_notes/]

All TT FIX clients are strongly encouraged to subscribe to the weekly TT System Admin News and Updates email newsletter here: [https://www.tradingtechnologies.com/support-updates/]

(Ref 207212)

Version: v311

Learn More

05/01/2026

Fixes

Exchanges

As part of an upcoming update, TT will be correcting product group mappings for certain products based on their Market Type ID.

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)

(Ref 207017)