B3 Tech Launches

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02/05/2026

B3 Tech Launches | Trading

The table below offers an overview of B3’s upcoming IT & Operations projects. The overview allows market participants to effectively plan their own development and management of the upcoming tech launches. Our full trading Roadmap can be accessed here.

Service: Trading
Update frequency: every 2 weeks
Date of last update: Jun/07/2026

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Summary	Impacted services	Certification required?	Certification	Mock	Production	Description	Observation
ePUMA: Change in Architecture Model - Client Multirelay	ePUMA	No	N/A	N/A	The migrations will take place between October and April.	The ePUMA application's architecture is evolving. The real-time trading and monitoring station for Market Data has adopted the CMR (Client Multirelay) architecture.	The expected impacts for participants include the replacement of channels and connection validation. Validation will occur during the morning call and will be individually aligned with each participant.
Simultaneous Auction – Futures Contracts	Order Entry Market Data	Yes	May/18/2026	May/30/2026; Jun/13/2026; Jun/27/2026	Jul/13/2026	Implementation of the Full Simultaneous Auction functionality, which ensures the synchronized start and end of all auctions for related futures contracts throughout the trading session, including scenarios involving protection mechanisms and regular and closing auctions. This functionality guarantees that futures contracts and their respective mini contracts start and end auctions simultaneously, promoting greater operational efficiency and improved price formation.	The implementation will be carried out in two phases, gradually: From Jul/27/2026: S&P 500 Futures Contracts and Mini S&P 500 (ISP/WSP) From Aug/03/2026: Dollar Futures Contracts and Mini Dollar (DOL/WDO) Ibovespa Futures Contracts and Mini Ibovespa (IND/WIN) With this new functionality, auctions will occur in a synchronized manner throughout the day, reducing price discrepancies and eliminating distortions caused by timing differences between correlated instruments.
Asset/Group Redistribution Between Channels 3, 4, and 9	UMDF FIX/FAST	Yes	Jun/01/26	Jul/25/26	Jul/27/26	Redistribution of assets/groups across channels as part of the continuous system enhancement	Channel Movements Group (Asset): Channel 3 to 4 - G8 (DII) - E8 (DII) - F8 (DIF) Channel 3 to 9: - D3 (DI1) - H8 (DIF) Groups D1 and D2, belonging to asset DI1, remain on channel 3.
Alphanumeric CNPJ	Trading Portal	No	N/A	N/A	Jul/01/26	Implementation of the Investor ID (Identifier ID) generation functionality by B3. With this functionality, clients will be able to create unique numeric investor codes. Its use is mandatory for investors with alphanumeric documents but can be used by any type of investor. This code with the defined prefix (900-999), must be used in the InvestorID tag, which is used in the Self Trade Prevention functionality and Mass Cancel on Behalf	It is the participant's responsibility to request the generation of this code through the Trading Portal
Maintenance Release	Binary Gateways	No	Jun/27/26	N/A	Effective on each wave	Internal changes to enable a future replacement of the internal multicast bus	Waves: Derivatives: Jun/29/26: PGWD01 Jul/06/26: BGWD01 Jul/07/26: BGWD02 Jul/08/26: BGWD03 Jul/09/26: BGWD04 Jul/10/26: BGWD05 Jul/13/26: BGWD06 Equities: Jun/30/26: PGWE02 Jul/01/26: PGWE01 Jul/13/26: BGWE01 + BGWE02 Jul/14/26: BGWE03 + BGWE04 Jul/15/26: BGWE05 + BGWE06 Jul/16/26: BGWE07 + BGWE08 Jul/17/26: BGWE09 + BGWE10
Maintenance Release	Drop Copy Gateways	No	Jul/11/26	N/A	Effective on each wave	Internal changes to enable a future replacement of the internal multicast bus	Waves: Derivatives: Jul/14/26: DCPDRV02 Jul/15/26: DCPDRV01 Equities: Jul/21/26: DCPEQT02 + DCPEQT05 Jul/22/26: DCPEQT01 + DCPEQT03 Jul/23/26: DCPEQT04
Changes to BVBG28	BVBG28	No	N/A	N/A	Third quarter of 2026	Addition of optional fields to the BVBG028 file to indicate specific asset characteristics.	- Custody start date `<CtdyStartDt>` and custody end date `<CtdyEndDt>` - Trading Round Lot `<NegtnLot>` - Addition of tag `<SctyCtgy>` for Options on Available and Futures - ETF redemption days indicator `<RedemptionDaysToSttlm>` - Fund pricing identifier, Law 12.431 Section 3 `<Artl3Ind>`
ePUMA Multi Relay: Network Firewall Rule Release	ePUMA	No	N/A	N/A	The migrations will take place between September and October/26	Architectural update with the segmentation of the single UMDFTCP (EQT) session into two sessions.	Network firewall rule release due to the inclusion of new IP addresses and connection ports in the production environment. For already authorized IPs, the current access should be maintained, with the addition of the new applicable ports. The complete list of IPs and ports can be accessed here.
Template Update – UMDF Binary (Version 2.3.1)	Market Data	Yes	Aug/03/26	Aug/22/26	Nov/14/26	Publication of a new version of the UMDF Binary Market Data Template, including the addition of the SettlDate field to identify the date associated with the Settlement Price message in both Snapshot and Incremental streams.	New Template Deployment 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 8, 2026 – Channels 72, 78, 82, 84, 88 SettlDate Production Activation: • Nov 16, 2026
Template Update – UMDF FIX/FAST (Version 5.1.19)	Market Data	Yes	Sep/14/26	Nov/14/26	Nov/16/26	Addition of the SettlDate (Tag 64) field, representing the Settlement Price date. The functionality will be available in both Snapshot and Incremental streams, eliminating ambiguities in the identification of the Settlement Price date and simplifying data parsing for market participants.Template File Deployment: • Single rollout: Nov 16, 2026 • All channels Discontinuation of openCloseSettlFlag publication in the Settlement Price message: • February 2027	Template File Deployment: • Single rollout: Nov 16, 2026 • All channels Discontinuation of openCloseSettlFlag publication in the Settlement Price message: • February 2027
FIX Dictionary Update – UMDF Conflated (Version 1.0.0.39)	Market Data	Yes	Sep/14/26	Nov/14/26	Nov/16/26	Addition of the SettlDate (Tag 64) field, representing the Settlement Price date. The functionality will be available in both Snapshot and Incremental streams, eliminating ambiguities in the identification of the Settlement Price date and simplifying data parsing for market participants.	Publication of the New FIX Dictionary: • Single rollout: Nov 16, 2026 Discontinuation of openCloseSettlFlag publication in the Settlement Price message: • February 2027
Cash-Settled Stock, ETF and BDR Options	Order Entry / Market Data	Yes	Aug/03/26	Nov/14/26	Nov/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 through Thursday and automatic exercise following the European-style exercise model. The settlement amount will be calculated based on the underlying asset's closing price and settled on the second trading session following expiration.	Cash-settled options will be identified by the suffix "F" in the ticker symbol (e.g., PETRA300B1F) 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 receive the new value "2 - Vanilla - Cash Settlement" for Market Data identification. Deployment 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 8, 2026 – Channels 72, 78, 82, 84, 88