1. What B3 Is Launching and When
Brazil's Bolsa, Brasil, Balcão — the country's dominant stock and derivatives exchange, operating as B3 — will introduce six new derivatives instruments called Event Contracts on April 27, 2026. The contracts allow eligible investors to take positions on the probability of specific future outcomes, with each contract's price fluctuating in real time based on the market's collective assessment of how likely the outcome is. At launch, the instruments will cover movements in bitcoin prices, the U.S. dollar against the Brazilian real, and the Ibovespa equity index, with a focus on mini futures and spot contract structures. Each contract is capped at a maximum price of R$100 and settles in cash rather than requiring physical delivery of the underlying asset — a structure that contains maximum loss exposure and simplifies settlement. The launch is regulated and approved by Brazil's securities regulator, the CVM.
2. Brazil's First Federally Regulated Prediction Market
The six Event Contracts represent a historic milestone for Brazil's financial market: B3 will become the country's first federally regulated prediction market upon the April 27 launch. Prior to this, Brazilian investors interested in event-based contracts had access only to platforms like Prévias and Palpitada, which have been operating in a domestic regulatory grey area without formal CVM approval. The B3 launch changes the regulatory landscape fundamentally — bringing event contracts into the same oversight framework that governs conventional securities and derivatives trading in Brazil, with the consumer protections, capital requirements, and market integrity standards that regulated markets provide. The regulatory clarity also sets a precedent for how Brazil will treat prediction markets going forward, potentially accelerating the formalisation of the domestic platforms that have been operating without explicit regulatory sanction.
3. Who Can Access the Contracts: Professional Investor Restriction
The April 27 launch is explicitly restricted to professional investors — defined under Brazilian financial regulation as individuals or legal entities with at least R$10 million in financial assets, equivalent to approximately $1.9 million. This threshold excludes the retail investor base from the initial launch, limiting access to institutional investors, family offices, high-net-worth individuals, and entities that have received specific CVM qualification. B3's vice president of Products and Clients, Luiz Masagão, characterised the restriction as appropriate for the initial deployment of instruments whose probability-based pricing mechanics are less familiar than conventional derivatives. The professional investor restriction mirrors approaches taken in other markets when introducing novel derivatives products — beginning with the most sophisticated participants who can evaluate the instruments independently before broadening access.
4. How Event Contracts Differ From Conventional Derivatives
Event contracts function differently from the futures and options that form the core of B3's existing derivatives business. A conventional futures contract obligates the holder to buy or sell an asset at a specified price on a specified date, with profit or loss determined by the difference between the contracted and market prices. An event contract is simpler in structure: it pays out a fixed amount if the specified event occurs — for example, if bitcoin's price exceeds a specified level by a specified date — and pays nothing if it does not. The contract price represents the market's implied probability of the event occurring, expressed as a percentage of the maximum payout. A contract trading at R$60 on a R$100 maximum implies 60% probability of the event occurring. This binary outcome structure — often described as digital or all-or-nothing — makes the instrument conceptually accessible while remaining mathematically rigorous in its probability expression.
5. The Bitcoin Contract's Specific Appeal
The inclusion of bitcoin-linked event contracts alongside traditional Ibovespa and dollar contracts is the most strategically notable aspect of the launch from a crypto industry perspective. B3 already has an established track record in bitcoin derivatives: the exchange introduced bitcoin futures contracts in April 2025, and those contracts have been generating approximately R$5 billion — around $860 million — in monthly trading volume, indicating genuine institutional appetite for regulated bitcoin exposure in Brazil. The event contracts represent a qualitatively different product than futures, however. Rather than providing directional price exposure, they allow participants to express probabilistic views about whether bitcoin will cross specific price thresholds — a risk profile that is better suited for portfolio hedging and tactical positioning than the leveraged directional exposure that futures provide.
6. The Competitive Context: Kalshi's Brazil Expansion
The B3 launch does not occur in isolation from international competitive dynamics. U.S.-based Kalshi — which has been at the centre of the prediction market legal battles in the United States — recently announced a partnership with XP International, one of Brazil's largest brokerages, to offer event contracts tied to Brazilian economic outcomes to international investors. The Kalshi-XP partnership provides a reference point for the appetite among professional investors for Brazil-linked event contract exposure, and confirms that the demand exists for the products B3 is launching. However, B3's launch provides something that the Kalshi-XP arrangement cannot: a domestically regulated, CVM-approved product structure that gives Brazilian institutional participants regulatory comfort that a foreign platform's partnership with a Brazilian brokerage may not fully provide.
7. The Broader B3 Digital Asset Strategy
The event contract launch is one component of a significantly more ambitious digital asset strategy that B3 has been building throughout 2025 and 2026. The exchange has been developing a tokenisation platform that will allow traditional assets — stocks, bonds, real estate, commodities — to be represented as blockchain-based tokens and traded through the same liquidity pool as their conventional counterparts. B3's vice president described the tokenisation model as one in which a token buyer will not know they are purchasing from a traditional stock seller — the two systems share liquidity, enabling a seamless transition between the tokenised and conventional representations of the same underlying asset. Alongside the tokenisation platform, B3 is developing a proprietary stablecoin pegged to the Brazilian real, which will serve as the settlement currency for tokenised asset transactions. Both products are expected to launch before the end of 2026.
8. B3's Existing Crypto Track Record
The event contract launch builds on a foundation of crypto product development that has made B3 one of the more advanced traditional exchanges in the world for digital asset integration. The exchange first listed a bitcoin-linked ETF in April 2021 — years before the U.S. spot bitcoin ETF launches of early 2024. Since then, B3 has listed thirteen ETFs with crypto exposure, including a spot XRP fund launched in February 2026. Those crypto ETPs are held by approximately 600,000 investors and account for approximately $2.4 billion in assets under management — a meaningful institutional and retail base that demonstrates both the appetite for crypto products in Brazil and the exchange's operational capability to support them. The progression from ETFs to futures to event contracts reflects a deliberate sequencing of increasingly sophisticated product types as institutional familiarity with each layer of the market has developed.
9. The Global Prediction Market Context
Brazil's formalised prediction market launch occurs as global interest in event-based contract trading has accelerated dramatically. Total prediction market trading volumes across the leading platforms have approached $160 billion globally, with the user base exceeding three million participants. Kalshi raised $1 billion at a $22 billion valuation in March 2026. Intercontinental Exchange — owner of the New York Stock Exchange — committed nearly $2 billion to Polymarket. The global capital allocating to prediction market infrastructure in the first quarter of 2026 alone exceeds what the entire industry attracted in the preceding several years combined. B3's entry into the category, as the operator of a major national exchange, represents a different kind of institutional endorsement than venture capital funding: it is a regulated national market infrastructure operator treating event contracts as a legitimate and necessary expansion of the derivatives product set.
10. What Comes Next for Brazilian Digital Finance
April 27 marks one inflection point in a broader transformation of Brazil's financial market infrastructure. The CVM's approval of event contracts establishes a regulatory template for how Brazil treats prediction markets within its securities framework — a template that may inform how the domestic platforms Prévias and Palpitada are eventually regulated. The tokenisation platform, once launched, will create a pathway for Brazilian institutional investors to access blockchain-based representations of conventional assets without leaving the regulatory safety of the B3 trading environment. The B3-issued real-pegged stablecoin will provide settlement infrastructure for those tokenised transactions. Together, these three product areas — event contracts, tokenised assets, and exchange-issued stablecoin — represent a comprehensive reimagining of what a 21st-century national stock exchange looks like, with Brazil positioning itself as an early mover in institutional digital finance infrastructure development.