Scope of the Simulated Trading Session on 11/29/2025 – PUMA Trading System

To assist participants in planning changes and implementations, a simulated trading session of the PUMA Trading System will be held on 06/28/2025 with market participation. During this session, the following system changes will be validated:

• Change of Market Data Template

A template change will be made to the Binary Market Data with the new template file 2.2.0 (schema version 16).
The update will not be mandatory, as it is backward compatible with the previous version, but it will be required to use the new features described in external communication 058/2025-VNC.
The update can be validated in the simulated session, mock, on 29/11/25, which will be conducted in a production environment for all channels except for 86-Equities and 74-Derivatives. Only the first tranche will be available on Monday:
Tranche 1 – Channels: 68, 70, 92, 94, 98.

• Change in the Expiration Period of UDSs

Currently, UDSs automatically expire on the last trading day of the week when there are no trades throughout the week. This expiration makes it difficult for end customers to track the tickers as they seek to monitor the instrument and evaluate historical data. In this mock, we will implement the removal of the expiration rule for derivatives after 5 consecutive trading days without negotiation; UDSs will only expire when one of their legs expires.

• LiNe

A new authorized market group will be created in LiNe (105) for ETF Futures, which will be validated in this mock and will take effect from 01/12/2025.

We count on the participation and collaboration of everyone.

Moreover, Participation in the mock trading session must be confirmed no later than 12 p.m. on friday November 28, 2025, by email at [email protected] with “Mock trading session” in the subject line, identifying the institution, naming the individuals who will participate and supplying their contact details (telephone numbers and email addresses). In response to this confirmation, the participant will receive the mandatory test script, and must fill it out and send it to the above email addresses. Additionally, the confirmation can also be done via smartphone by WhatsApp application: https://wa.me/5511991514402

Mock trading session time:

Finally, we emphasize that the assistance of the Customer Service - Trading will be available from 10:00 a.m.

Further details can be obtained by Customer Service B3, by telephone on +55 11 2565-5021/5022 or by e-mail [email protected] and [email protected].