The crypto industry's largest lobbying group has filed a formal rebuttal to Citadel's call for the SEC to restrict exemptive relief for decentralised trading protocols, in a dispute that could determine how tokenized stocks are traded in the United States.
The Blockchain Association filed a formal response with the Securities and Exchange Commission on 6 April rebutting arguments made by Citadel Securities against granting exemptive relief for tokenized US equity securities and decentralised trading protocols. The filing escalates what has become the most consequential regulatory confrontation in the tokenization sector — a dispute that will shape whether blockchain-based stock trading develops within the existing US regulatory framework or is effectively blocked by incumbent market structure rules.
At its core, the disagreement pits the crypto industry's vision of permissionless, smart-contract-driven securities markets against Wall Street's insistence that any venue trading equities must comply with the full suite of exchange registration, broker-dealer, and market surveillance requirements that govern traditional stock markets. The outcome will have implications far beyond the immediate parties involved, potentially determining whether the estimated $2 trillion tokenized securities market that Boston Consulting Group projects by 2030 develops onshore or migrates to more permissive jurisdictions.
Citadel's Position: Regulate First, Innovate Later
Citadel Securities, the market-making giant that handles roughly 27 percent of all US equity trading volume, laid out its position in a detailed submission to the SEC earlier this year. The firm argued that the Commission should avoid granting broad exemptive relief from exchange and broker-dealer definitions for platforms facilitating tokenized equity trading, and should instead pursue comprehensive rulemaking through the traditional notice-and-comment process.
The firm's central concern is that exemptive relief would create what it described as a parallel regulatory regime with weaker investor protections and more fragmented liquidity. Citadel contended that any platform matching buyers and sellers of tokenized securities performs the functional equivalent of an exchange and should be regulated accordingly — regardless of whether the matching occurs through a centralised order book or a decentralised smart contract.
James Overdahl, a former SEC chief economist retained by Citadel as an expert, argued in an accompanying white paper that the absence of traditional market surveillance on decentralised platforms creates unacceptable risks of manipulation and insider trading. He urged the SEC to identify the intermediaries involved in tokenized equity trading rather than treating blockchain infrastructure as fundamentally different from existing market plumbing.
The Blockchain Association's Rebuttal
The Blockchain Association's response challenged Citadel's framework at its foundation. The industry group argued that US securities laws regulate intermediaries — entities that exercise discretion over customer assets or order execution — and that validators, smart contracts, and non-custodial protocols function as neutral infrastructure rather than intermediaries. Applying exchange registration requirements to smart contracts, the Association contended, would be analogous to requiring the internet itself to register as a broker-dealer because it facilitates securities transactions.
The filing characterised Citadel's call for comprehensive rulemaking as a deliberate delay tactic. The Association noted that formal SEC rulemaking typically takes two to four years from proposal to final rule, during which time the benefits of tokenized equity trading would remain unavailable to American investors and innovation would relocate to jurisdictions with clearer regulatory frameworks. The Association pointed to the European Union's DLT Pilot Regime, Switzerland's DLT Act, and Singapore's tokenized bond initiatives as examples of competing frameworks already attracting capital and talent.
SEC Chairman Paul Atkins has signalled support for what he has described as a minimum effective dose approach to crypto regulation, favouring targeted exemptive relief over sweeping rulemaking. The Blockchain Association's filing explicitly endorsed this approach, arguing that carefully scoped exemptions under the Commission's existing authority could enable tokenized equity pilot programmes while preserving the SEC's ability to impose additional requirements as the market develops.
The Stakes for Market Structure
The dispute touches on fundamental questions about the future of securities market structure. Tokenized equities promise several theoretical advantages over traditional stock trading: near-instantaneous settlement replacing the current T+1 cycle, fractional ownership enabling broader retail participation, and programmable compliance embedded directly into token smart contracts. Proponents argue these features could reduce systemic risk, lower costs, and democratise access to capital markets.
Critics, including Citadel, counter that these benefits remain largely theoretical and that the rush to tokenize without adequate regulatory guardrails risks repeating the mistakes of the early DeFi era — characterised by exploits, manipulation, and retail losses. The $285 million Drift Protocol hack in April 2026 and the broader $501 million in DeFi losses recorded in Q1 2026 provide ammunition for those arguing that decentralised infrastructure is not yet ready for the rigours of regulated securities trading.
Regulatory Timeline and Industry Implications
The SEC is not expected to issue a decision on the exemptive relief question before the third quarter of 2026, according to regulatory affairs analysts at The Block. In the interim, several pilot programmes are already underway. The Boston Stock Exchange filed a proposal in February to operate a tokenized equity alternative trading system under existing SEC no-action relief, and Franklin Templeton has been running a blockchain-based money market fund on a permissioned Stellar network since 2021.
For Citadel and other incumbent market makers, the outcome has direct commercial implications. If the SEC grants broad exemptive relief for decentralised protocols, it could disintermediate the centralised market-making model that generates billions in annual revenue. If the Commission sides with Citadel's approach, it would preserve the existing market structure while potentially delaying tokenized equity adoption by years.
A Defining Moment for Tokenization
The Blockchain Association's filing frames the dispute as a choice between innovation and incumbency protection. Citadel frames it as a choice between orderly markets and regulatory arbitrage. Both characterisations contain elements of truth, and the SEC's eventual decision will need to balance genuine investor protection concerns against the risk of ceding technological leadership to foreign jurisdictions.
What is clear is that the question of how tokenized securities will be regulated in the United States has moved from academic discussion to active regulatory contest. The arguments have been made, the interests are defined, and the SEC must now decide whether blockchain-based stock trading will develop within the American regulatory perimeter or beyond it. The answer will reverberate through capital markets for years to come.
