B3 has changed the concentration limits for open positions for the lending, forward and options markets. These limits are calculated based on the free float of shares and will now be 10% for each investor or group of investors, considering each market separately. Furthermore, groups of instruments will be created to aggregate positions from these markets, with a 15% limit applied to the free float. This means that if an investor uses 10% of their portfolio in one of the markets, only 5% will be available for allocation to another market within the group. The change aims to offer greater flexibility to participants, allowing for a better distribution of limits according to their investment strategies.

B3 has improved the filter functionality in the Subscription and Priority Offer modules of its post-trade platform – RTC (Real Time Clearing) – to facilitate the return of subscription rights by position or instrument. Previously, this process had to be carried out contract by contract, which required more time and operational effort. With the new solution, participants will be able to fill in the total quantity available for return in lots. Furthermore, the quantity field will remain editable, allowing clients to opt for a partial return, according to their needs.

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.

This improvement will bring greater quality to the generation of debentures reference prices, making it more robust and complete.