Case study BlockFi: o colapso do gigante de yield e o fim da era do 'BlockFi Interest Account'
Retrospectiva do colapso da BlockFi em novembro de 2022 — exposure a 3AC e FTX, settlement com SEC e estados, Chapter 11 e recovery process para customers.
07/03/2026 · 6 min de leitura · CaseStudy · BlockFi · Yield · Regulacao
Quem era BlockFi
BlockFi foi fundada em 2017 por Zac Prince e Flori Marquez. Tornou-se major institutional crypto lender + retail platform offering 'BlockFi Interest Account' (BIA) — savings-like product onde users depositavam BTC/ETH/stablecoins e earned 4-12% APY.
Em pico (2021-2022), BlockFi tinha mais de 400,000 users globally, mais de $10 billion em assets under management, e era backed por Tier-1 VCs (Valar Ventures, Bain Capital, Galaxy Digital, Coinbase Ventures).
Modelo de negócio (e fragilidade)
BlockFi taking customer deposits e lending them out to institutional traders (hedge funds, market makers) at higher rates. Spread between deposit yield (4-12%) e loan yield (10-20%) was the profit.
Fragilidade: counterparty risk concentrated em few major institutional borrowers. Top borrowers em 2021-2022: 3AC ($680M loan), Alameda Research ($400M+ loan combined), Genesis Trading interconnected exposure.
Eventos 2022
Fevereiro 2022: SEC fines BlockFi $100M for selling unregistered securities (BIA product). Settlement establishes path to BlockFi Yield offering registered.
Junho 2022: 3AC collapses. BlockFi has $680M in defaulted loans to 3AC. BlockFi management initially claims 'manageable.'
Julho 2022: FTX (Sam Bankman-Fried) provides $400M revolving credit to BlockFi with option to acquire BlockFi for $240M. Apparent rescue.
Novembro 2022: FTX collapses. BlockFi's rescue partner is now insolvent. BlockFi has additional exposure to FTX (~$355M assets em FTX exchange + Alameda loans).
28 novembro 2022: BlockFi files Chapter 11.
Customer impact
All withdraws frozen since 10 November 2022. 400,000+ users affected. Total BIA balances frozen: $3+ billion.
Em Chapter 11, customers became unsecured creditors. Recovery depended on bankruptcy estate liquidation.
Final recovery (settled 2024): cerca de 35-50% em USD terms (varies by claim type), distributed em USD ou stablecoin equivalent. Customers receiving BTC/ETH valued at November 2022 prices — significant 'haircut' versus current market.
Lessons learned
Lesson 1: 'savings accounts' in cripto are not savings accounts. BlockFi marketed BIA com FDIC-style imagery but BIA was unsecured loan to BlockFi. No FDIC insurance, no government backstop.
Lesson 2: high yields signal high risk. 8% APY em stablecoin em 2021-2022 era em context where T-bills paid 0,1%. Spread that large couldn't be free lunch.
Lesson 3: Tier-1 VC backing doesn't guarantee safety. BlockFi had blue-chip backers. Didn't prevent collapse.
Lesson 4: bankruptcy claims em cripto are typically resolved in fiat terms based em filing-time valuations. Customers who 'wanted to be long crypto' got USD at low prices — opportunity loss substantial.
Industry impact
BlockFi failure was second major retail crypto lender failure (Celsius collapsed em June 2022 as precursor). Confirmed end of 'unregulated savings products' em cripto. Industry shifted to:
(1) Lending products that explicitly disclose unsecured risk.
(2) Regulated alternatives — registered securities offerings under SEC/CFTC oversight.
(3) Decentralized lending (Aave, Compound, Morpho) — code-based, transparent, no central counterparty risk (just smart contract + collateral logic).
Em 2026, o panorama
Major centralized crypto lending para retail é virtualmente extinct em US/EU. Exception: regulated registered offerings com clear risk disclosure.
DeFi lending grew significantly em 2022-2026. Aave V4, Morpho Blue, Spark Protocol offer permissionless lending com transparent collateral. No counterparty risk beyond smart contract.
Para OFFCODE Earn products: structured carefully com transparency on yield source. Most yield comes from market making, basis trades, ou regulated lending — disclosed in documentation.
Aviso YMYL: any cripto yield product (CeFi ou DeFi) carries risk. Diversify exposures. Don't allocate more than 10-20% portfolio em single yield product. 'High yield' is signal to ask questions.