11 de fevereiro de 2021 021/2021-VOP

EXTERNAL COMMUNICATION

To:B3's Market Participants - BM&FBOVESPA Segment

Re:

New Version of LiNe 5.0 Pre-Trading Risk Control System - Alterations to API and Correction of Defects

As part of the process of continuous improvement of its systems and preparation for the launch of LiNe Clearing, on March 1, 2021, B3 will implement a new version of the LiNe 5.0 pre-trading risk control system with alterations to the API and correction of defects, including those described below.

1. Alteration to queries via API

Inclusion of the new attribute "coreType" in the endpoints listed below, responsible for Consumption Ranking, Current Position and Position History screen functionality:

  • • /v1.0/position/rank

  • • /v1.0/position/hstry

  • • /v2.0/position/current

  • • /v2.0/position/hstry

TheAPI documentationis available athttps://line.trd.cert.bvmfnet.com.br/#/endpoints.Login authentication by certification environment username and password is required to access this documentation.

On a date to be announced in July, the endpoints listed below will be disabled and it will be necessary to use version 2.0 of the API:

  • • /v1.0/position/hstry

  • • /v1.0/position/current

1

This External Communication produces effects as of the date of its publication.

Any specified time limits for validity shall apply.

This free translation is not legally binding. Any questions arising from the text should be clarified by consulting the original in

Portuguese. In the event of any discrepancy, the original in Portuguese shall prevail.

INFORMAÇÃO PÚBLICA - PUBLIC INFORMATION

021/2021-VOP

2. Corrections

  • a) Processing of at-the-market bids for fixed-income ETFs.

  • b) File uploading for give-up carrying participants.

These changes may be validated by market participants during the mock trading session scheduled for February 27, 2021, as per External Communication 006/2021-VOP, dated January 14, 2021.

The technical specifications for the LiNe 5.0 pre-trading risk control tool can be found athttp://www.b3.com.br/en_us,Solutions, Platforms, Risk Management, LiNe 5.0, Specification.

B3 will continue to upgrade LiNe 5.0 and more changes will be announced in due course.

Further clarification can be obtained from Trading Support by calling +55 11 2565-5021 or emailingtradingsupport@b3.com.br.

Cícero Augusto Vieira Neto

Chief Operating Officer

This External Communication produces effects as of the date of its publication.

2

Any specified time limits for validity shall apply.

This free translation is not legally binding. Any questions arising from the text should be clarified by consulting the original in

Portuguese. In the event of any discrepancy, the original in Portuguese shall prevail.

INFORMAÇÃO PÚBLICA - PUBLIC INFORMATION

Attachments

Disclaimer

B3 SA Brasil Bolsa Balcao published this content on 11 February 2021 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 11 February 2021 20:04:02 UTC.