Circular letters and external communications

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6/13/25

029-2025-VNC-External Communication

Changes on the minimum size for direct offer registration
Based on the monthly monitoring of indicators and thresholds related to the rules for registering direct offers, B3 identified the need to adjust the average percentage of the volume of these offers in some products.
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6/13/25

028-2025-VNC-External Communication

Trading Parameters for Cryptocurrency Futures
Disclosure of trading parameters related to the registration of cross trade orders, maximum quantity per order, and trading tunnels for Cryptocurrency Futures.
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6/12/25

081-2025-PRE-Circular Letter

Financial Incentive Program for Dollar Options
In order to develop the market potential of dollar options on B3, we launched a financial incentive program for brokers.
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6/12/25

079-2025-PRE-Circular Letter

Financial Incentive Program for Foreign Currency Futures Contracts
In order to develop the market potential of foreign currencies on B3, we launched a financial incentive program for brokers.
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6/12/25

020-2025-VPC-Circular Letter

Launch of the CDS of AAA IPCA B3 Incentivized Corporate Bonds (IDEB CDS AAA IPCA B3)
The index will reflect daily, the weighted average spread of the theoretical portfolio of the AAA IPCA B3 Incentivized Corporate Bond Index.
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6/12/25

019-2025-VPC-Circular Letter

Launch of the AAA IPCA B3 Incentivized Corporate Bond Index (IDEB AAA IPCA B3)
The Index represents the average price performance of incentivized corporate bonds with AAA credit risk rating.
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6/12/25

019-2025-VPC-External Communication

Expanded the list of B3 Listed products that can be traded by U.S. Person.
Ethereum Futures, Solana Futures and their rollovers enter the list of products that can be traded by U.S. Persons, as determined by the U.S. Commodity Futures Trading Commission.
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6/12/25

018-2025-VPC-Circular Letter

Launch of the CDS of AAA DI B3 Corporate Bonds (IDEB CDS AAA DI B3)
The index will reflect daily, the weighted average spread of the theoretical portfolio of the AAA DI B3 Corporate Bond Index.
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6/12/25

017-2025-VPC-Circular Letter

Launch of the AAA DI B3 Corporate Bond Index (IDEB AAA DI B3)
The Index represents the average price performance of corporate bonds with an AAA credit rating
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6/12/25

009-2025-VNC-Circular Letter

Ethereum (Ether) and Solana (SOL) Futures Contract Pricing Model
The contracts will be launched on 06/16/2025. Learn about the pricing methodology for new products.
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Any Circular Letters revoked by B3 are indicated as revoked in their descriptions on B3’s website and within the original document text.

For copies of Circular Letters issued prior to 2003 that are not available on B3’s website, please email [email protected] with the number of the specific circular letter you require.

Send an e-mail to [email protected] and receive the Circular Letters and External Communications published.

See the BM&FBOVESPA and Cetip Circular Letters and External Communications published up to June 14, 2017, the date that the corporate name changed to B3 S. A. – Bolsa, Brasil Balcão.

Revoked letters

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Historical documents