TLDR
The SEC has proposed scrapping two key equity trading rules, which could remove a major barrier to tokenized US stocks trading on DeFi if the changes are finalized.
- The SEC wants to rescind Regulation NMS Rules 611 and 610(e), with a 60?day comment period and potential implementation around 2027.
- Removing these rules would fix a core incompatibility between tokenized equities and AMM-based DeFi, but registration, settlement, and investor-protection rules still constrain full onchain trading.
- Over the next 1 to 3 years, watch the rulemaking outcome, any innovation exemption pilots, and how chains like Solana, Avalanche, and BNB Chain integrate regulated tokenized stocks.
Deep Dive
1. What The SEC Proposed
The SEC has put forward a proposal to rescind Regulation NMS Rule 611 (the Order Protection Rule) and Rule 610(e) on locked and crossed quotes, which have governed US equity routing and pricing since 2005. The agency opened a 60?day public comment window and analysts expect any final rule to land around early 2027 if approved, possibly with earlier relief for specific pilots.
Rule 611 forces trades in national market system (NMS) stocks to respect the national best bid and offer, while 610(e) limits exchanges from posting quotes that lock or cross that best price. The SEC frames the rollback as an effort to simplify market structure and reduce costs while encouraging competition and innovation in equity markets, including blockchain-based venues that cannot easily comply with per?trade NBBO checks.
This is a structural market-structure proposal, not a crypto-specific bill, but it explicitly removes rules that have been blocking compliant tokenized stock trading models.
2. Why This Helps DeFi
Analysts like Galaxy Digitals Alex Thorn have called the proposal one of the biggest unlocks yet for tokenized US equities, because AMM-style DEXs cannot practically check every exchange for a better quote before each trade or avoid occasionally locking and crossing quotes. By removing 611 and 610(e) and relying more on broker-level best execution standards, the SEC would take away the main rule that makes any AMM pool for NMS stocks look non-compliant.
However, this does not automatically legalize any DeFi protocol that lists tokenized stocks. Platforms would still need to address exchange or ATS registration, clearing and settlement rules, and ensure that tokenized shares carry proper shareholder rights and disclosures. A narrow SEC innovation exemption for fully backed tokenized public equities, not synthetic wrappers, is being discussed as a next step.
3. Timelines, Pilots, And Remaining Risks
In the near term, the impact is mostly narrative and preparatory. The key milestones are the current 60?day comment period, any revised proposal that emerges, and whether the SEC grants targeted pilot exemptions for tokenized stock venues before the expected 2027 implementation window.
Meanwhile, tokenized equities are already expanding in more permissive or non-US frameworks, with examples like Binances fully backed Bstocks, Solana-based tokenized shares via partners such as Backpack and Ondo, and compliant dShares on Avalanche. The SECs move could eventually let similar products serve US investors within a clearer rule set, but only if issuers and DeFi venues integrate regulated broker-dealers and custodians rather than purely anonymous protocols.
The proposal is a necessary precondition for mainstream, compliant tokenized equities in DeFi, but the real unlock depends on follow-on rules, pilot programs, and how aggressively builders plug into regulated market infrastructure.
Conclusion
The SECs plan to scrap key order-protection rules removes a major structural barrier that has kept tokenized US equities at the edge of regulation rather than inside it. If the rule change survives the comment process and is paired with focused exemptions and best execution guidance, it could shift tokenized stocks from niche, offshore products into a core DeFi collateral and trading layer anchored in regulated equity markets. Until then, the main opportunity is positioning: watching which chains, wallets, and protocols are building regulated rails now to be ready when the legal door fully opens.
