Brazil's B3 exchange rolls out bitcoin event contracts restricted to investors with $1.9M+ in assets

$1.9M minimum to trade binary BTC contracts on a regulated exchange while any Brazilian with a phone can ape into Polymarket with USDC and zero KYC — B3 is building TradFi prediction markets for the exact cohort that already has prime brokerage access to CME bitcoin futures. Cash-settled event contracts are training wheels for institutions, but the interesting play is B3's broader 2026 roadmap: they're also shipping a tokenization platform and their own stablecoin, so these BTC event contracts look more like a CVM-compliant trojan horse to onboard traditional capital into on-chain rails. Brazil already ranks top-5 globally in crypto adoption, and retail will keep using offshore venues — this product isn't for them, it's for pension funds and family offices who need a regulated wrapper before touching anything bitcoin-adjacent.

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