Scope of the Simulated Trading Session on 11/04/2026 – PUMA Trading System

To assist market participants in planning changes and implementations, a simulated trading session of the PUMA Trading System will be held on 11/04/2026, with market participation. In this session, the following system changes will be validated:

• Market Data Improvements

As part of the delivery for optimizing data transmission channels, the following tests will be performed:

• • Shutdown of positional publication in FIX/FAST

Positional publication will be deactivated in the channels specified below, with the objective of validating adapter functionality in a production environment.

Tranche 1 – Channels: 5, 6, 59, and 72

• • Test only in this mock - Template update in channel 005

Validation of the new Market Data template will be performed through an update in channel 005. The new tag 1482 (OptPayoutType) will be published only for ePuma, ensuring compatibility and not affecting the positional publication shutdown test in FIX/FAST market data.

• • Event Contracts Project Tests

Complete validation of functionalities related to the new Event Contracts product, with publication in Binary Market Data and ePuma. It is worth noting that tag 1482 () of Binary Market Data, updated on 11/29/2025, will be populated during the Mock.

Simulated Trading Session Schedule

Morning Test of the Electronic Trading System

Participation of all brokers in the morning test is essential, to be executed on 04/12/2026 (Monday), from 7:00 AM to 7:45 AM for the derivatives market and from 7:00 AM to 8:00 AM for the equities market, in production environments.

Participation Confirmation

Participation in the simulated trading session must be confirmed by 12:00 PM on 04/10/2026 (Tuesday), exclusively via email [email protected], with the subject "Simulated trading session," containing the institution's identification, a list of names of people who will participate and their respective phone numbers, as well as contact emails.

Upon this confirmation, the participant will receive the test script, which must be completed and sent to the email address mentioned above.

For any clarifications, please contact us by phone at (11) 2565-5021/5022.

Access to Support Material prior to Simulated Trading Sessions is essential for additional guidance on participation.