Uniswap founder Hayden Adams publicly criticized Citadel Securities for urging the US Securities and Exchange Commission (SEC) to treat decentralized finance (DeFi) protocols and their developers as traditional intermediaries. In a post on X, Adams pointed out that Citadel is trying to push the SEC to regulate open-source, permissionless DeFi in the same way as Wall Street, sparking strong concern within the crypto industry.
The controversy stems from a lengthy opinion letter Citadel submitted to the SEC regarding tokenized stocks and DeFi trading venues. In the document, Citadel claims that many protocols calling themselves “decentralized” actually coordinate buyers and sellers and thus meet the legal definition of an exchange or broker-dealer, arguing that the use of smart contracts or blockchain technology should not exempt them from regulation.
Adams expressed strong dissatisfaction, mocking Citadel’s claim that DeFi lacks “fair market access” as “shameless,” and pointed out that open-source peer-to-peer technology actually lowers the barriers to liquidity creation—conflicting with the business model of centralized market makers like Citadel. He further suggested that Citadel has been pushing for similar regulatory agendas in Washington for years.
In its filing, Citadel listed various participants in the DeFi tech stack, including front-end operators, smart contract developers, validators, and liquidity providers, asserting that many of these roles functionally resemble those of regulated financial intermediaries and should therefore be subject to registration, capital requirements, and best execution regulatory obligations. The company emphasized that the SEC should adopt a “technology-neutral” regulatory approach and not grant special treatment simply because transactions are executed via on-chain smart contracts.
Citadel’s main concern centers on tokenized stocks. The filing warns that if US companies’ tokenized stocks are allowed to trade freely on DeFi protocols, it could create a “shadow stock market” disconnected from the national market system, fragmenting liquidity and bypassing investor protection frameworks.
The crypto industry, meanwhile, fears that if the SEC adopts Citadel’s viewpoint, protocol developers, front-end teams, market makers, and even some DAO participants could be forced to shoulder the heavy regulatory burden of traditional intermediaries, threatening the global, permissionless DeFi innovation model. Many developers stress that decentralized protocols are fundamentally different from centralized platforms, and that imposing Wall Street rules would stifle technological innovation.
Adams also mentioned that Citadel founder Ken Griffin outbid ConstitutionDAO in 2021, preventing it from acquiring a copy of the US Constitution, alluding to Citadel’s long-standing opposition to the crypto community. This latest clash is seen as the newest chapter in the “Wall Street vs. Decentralization” battle, highlighting how future regulatory stances will have a profound impact on the DeFi ecosystem. (Cryptonews)
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