B3 Tech Launches

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Listed

09/21/2026

B3 Tech Launches | Trading

Here you will find a summary of the B3 roadmap, listing upcoming technology releases. Use this schedule to plan and effectively support development, taking into account the services and information provided below:

Service: Trading
Update frequency: Bi-weekly
Date of last update: September 21, 2026

Upcoming deliveries

Access the complete trading roadmap here.

Initiative

Affected services

Certification

Certification date

Mock

Launch

Descriptive

Observation

Alphanumeric CNPJ

Negotiation Portal

N/A

01/07/26

Implementation of the investor code (InvestorID) generation functionality by B3.

With this feature, clients will be able to create unique numeric investor codes.

Its use is mandatory for investors with an alphanumeric ID, but it may be used by any type of investor.

This code, together with the defined prefix (900-999), must be used in the InvestorID tag, which is utilized for the Self Trade Prevention and Mass Cancel on Behalf functionalities.

It is the participant's responsibility to request the generation of this code via the Negotiation Portal.

Update to BVBG028

BVBG028

N/A

Q4 2026 Forecast

Inclusion of optional fields in the BVBG028 file to indicate specific asset characteristics.

- Start date<CtdyStartDt> and end of custody <CtdyEndDt>

- Trading Lot (Round Lot) <StdLotQty>

- Tag inclusion <SctyCtgy> for available Options and Futures

- Redemption days indicator (ETF) <DaysToRed>

- Fund pricing identifier, Law 12.431, Section 3 <Artl3Ind>

ePUMA Multi Relay: Network Firewall Rule Release

ePUMA

N/A

The migrations will take place between September and October 2026.

Architecture update in ePUMA Multi Relay, with the segmentation of the single session of UMDFTCP (EQT) in two sessions.

Network firewall rule update required due to the addition of new IP addresses and connection ports in the production environment. Access for previously authorized IPs must be maintained, with the inclusion of the applicable new ports.

The complete list of IPs and ports can be viewed here.

Templates File Update

UMDF Binary
(Version 2.3.1)

Market Data

Yes

08/03/26

08/22/26

11/14/26

Publication of a new version of the Binary UMDF Market Data template, incorporating the `SettlDate` field to identify the date associated with the Settlement Price message in the Snapshot and Incremental streams.

New template implementation schedule:

Wave 1: aug/24/2026 Channels 68, 70, 90, 94, 98.
Wave 2:
aug/31/2026 Channels 74, 76, 80, 86, 92
Wave 3: sep/08/2026 Channels 72, 78, 82, 84, 88.

Activation in Production of settldate:

nov/16/2026

Disabling the publication of the openCloseSettlFlag in the Settlement Price message:

Feb/2027

Template file update: UMDF FIX/FAST
(version 5.1.19)

Market Data

Yes

09/14/26

11/14/26

11/16/26

Inclusion of the SettlDate field (tag 64), representing the Settlement Price date. This functionality will be available in both Snapshot and Incremental streams, eliminating ambiguity regarding the Settlement Price date and simplifying parsing for market participants.

Template file update:

- Single tranche: 16/11/26

All channels.

Disabling the publication of openCloseSettlFlag in the Settlement Price message:

- Feb/2027

FIX Dictionary Update: UMDF Conflated
(version 1.0.0.39)

Market Data

Yes

09/14/26

11/14/26

11/16/26

Updates to the new FIX dictionary:

- Single tranche: 16/11/26

Deactivation of the openCloseSettlFlag publication in the Settlement Price message:

- Feb/2027

Cash-Settled Stock Options, ETFs, and BDRs

Order Entry / Market Data

Yes

08/03/26

11/14/26

11/16/26

Launch of cash-settled options on stocks, ETFs, and BDRs, complementing the current physical settlement model. The new contracts will feature daily expirations from Monday to Thursday, with automatic European-style exercise. The settlement value will be calculated based on the underlying asset's closing price and settled on the second trading day following expiration.

Cash-settled options will be identified by the suffix "Z" in the ticker (e.g., PETRA300B1Z) and classified under the new SecCategory 14 (Cash Settled Equity Options). In the SecurityDefinition message, tag 1482 (FIX/FAST) and the OptPayoutType field (Binary UMDF) will adopt the new domain "2 - Vanilla - Cash Settlement" for Market Data identification.

Phased implementation schedule: