B3 has implemented an improvement to the margin call process in asset lending transactions. Now, when the borrower returns an asset to the lender, there will no longer be a margin call between the 11:00 AM and 4:00 PM windows. This is because the asset is being returned to the portfolio of the lender who is the asset's owner. This eliminates the need to use liquidity resources during this time interval.

Starting October 1, 2025, B3 will publish securities lending renewal rates directly on its website through the Daily Market Bulletin (BDM). The data will be available in the Clearinghouse chapter on the "Asset Lending - Renewals" table.

To render contract management more efficient, B3 implemented the functionality rejection per lot on its post-trade platform, RTC (Real Time Clearing). Currently, participants need to reject each amendment, renewal or early settlement individually. With this improvement, clients can reject all available transactions at once, providing greater agility and convenience to the process.

Specific enhancements for the 2024 peak season include new treatment for votes originating from the same investor and custodian, which were previously rejected for duplicity. Performance improvements were also implemented to generate the vote map. In addition, B3 made improvements to the CICORP system, including an adjustment to minimize errors when selecting ISIN numbers during Distance Voting Bulletin (BVD) registration. None of these changes require market adaptations.