Scope of the Simulated Trading Session – PUMA Trading System (November 08, 2025)

To support participants in planning changes and implementations, a simulated trading session of the PUMA Trading System will be held on November 08, 2025, with market participation. The following system changes will be validated during this session:

System Changes to Be Validated:

Testing of the New Network
We would like to inform you that the migration (Go-live) to the new Co-location network is confirmed for Monday (November 10, 2025) in Production. Additionally, we recommend that participants perform the necessary tests of the new connections during the simulated trading session this Saturday (November 8, 2025).

More details: NEWS & UPDATE NOTES - NEW CO-LOCATION NETWORK 

Improvement on the Match Engine
Improvement in the MatchEngine, achieving a 5% reduction in the Order Entry RoundTripTime at the 50th percentile.

We count on the participation and collaboration of everyone.

Simulated Trading Session Schedule

Morning Test of the Electronic Trading System

All brokerage firms are required to participate in the morning test on November 10, 2025 (Monday):

• Derivatives: 7:00 AM to 7:45 AM
• Equities: 7:00 AM to 8:00 AM
• Environment: Production

Participation Confirmation

Confirmation must be sent by 12:00 PM on November 07, 2025 (Friday), exclusively via email to [email protected], with the subject “Simulated Trading Session”, including institution identification and the list of participants with names, phone numbers and e-mail address. Upon confirmation, the test script will be sent and must be completed and returned to the same email address.

For further clarification, contact: +55 11 2565-5021 / 5022

Access to the Support Material prior to the Simulated Trading Session is essential for proper participation.