To assist participants in planning changes and implementations, a mock trading session of the PUMA Trading System will be held on Jun/29/2024, with market participation.
In this session, the following system and infrastructure changes will be validated:

•    Mass Cancel on Behalf

During the mock trading session, the Mass Cancel on Behalf functionality will be available for testing. At the end of the mock trading session, this functionality will be deactivated. The "Go Live" for this functionality is scheduled for Jul/22/2024.

•    Purge Gateway

During the mock trading session, the possibility of connectivity and sending the Mass Cancel on Behalf in the Purge Gateway sessions will be made available for clients who have already contracted these sessions. At the end of the mock trading session, this functionality will be deactivated. The "Go Live" for this functionality is scheduled for Jul/22/2024.

•    Internal deactivation of the Entrypoint Fix protocol

During the mock trading session, the publication of the Entrypoint Fix will be internally deactivated. However, at the end of the mock trading session, the publication of the Fix on the trading platform will be reinstated. We emphasize that there is no impact for clients trading using the Fix protocol.

•    Matching Engine Update

Implementation of the first tranche of the new version of the Matching Engine containing improvements, without impact for participants, specifically for the Trading Cores listed below:
 

•    LiNe Trading Update

Implementation of a new version of LiNe Trading that allows for leg breaking for Small Caps futures rollovers.

•    Firmsoft Update

Implementation of the version that removes the restriction on the number of sessions displayed on the system's query screen. From the new version onwards, the system will list all the participant's sessions.

•    Gateways FIX Update

Fourth wave of implementation of the version aimed at processing Execution Reports in the Entrypoint Binary format, converting the messages to the Entrypoint FIX format, as informed on the client website https://clientes.b3.com.br, Posts, News B3 Tech Launches | Trading

•    First tranche of updates for Binary OE Gateways

Implementation of the first wave of the new version of the Binary OE Gateways, which contains performance optimization, enabling an improvement of 15% to 20% in latency.

The update will follow the schedule announced in https://clientes.b3.com.br, Posts, News B3 Tech Launches | Trading

1.    Mock trading session timetable

2.    Morning test of the electronic trading system
It is mandatory for all the firms to participate in the morning test, which will be held on July 1st, 2024 (Monday), from 7:00 a.m. to 7:45 a.m. for the derivatives market and from 7:00 a.m. to 8:00 a.m. for the equities market in both production environments.

3.    Participation confirmation:
The activities to be performed during the test can be found in the mandatory script. Market data for these instruments will be sent during the mock trading session.
Participation in the mock trading session must be confirmed no later than 12 noon on June 28th, 2024 (Friday), exclusively 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 address.

Please note that mock trading session participants must adjust their internal systems so that the results of the mock trading session are completely segregated from real trading sessions.

Further information can be obtained from B3 Services – Trading, by telephone on +55 11 2565-5021/5022.