SEC Proposes Scrapping Reg NMS Trade-Through Rule In Move To Ease Market Complexity

The SEC said it proposed rescinding Regulation NMS Rules 611 and 610(e), reopening a debate over whether the US trade-through rule still helps markets or mainly adds complexity.

• The SEC has proposed rescinding Rule 611, the trade-through rule, and Rule 610(e).
• The change could reduce legacy equity-market routing complexity if finalized.
• Tokenized equity and blockchain-based ATS builders may benefit indirectly from a simpler execution framework.
• The proposal is still open to public comment and is not final policy.

The US Securities and Exchange Commission has opened the door to a major rethink of how American equity markets route trades, proposing to remove the trade-through rule that has shaped market structure since the mid-2000s. The rule was designed to stop trades from executing at worse prices when a better quote was displayed elsewhere. Critics have long argued that it also forced participants into a complex web of routing obligations, protected quotes, and compliance checks.

That matters for crypto because tokenized securities and blockchain-based alternative trading systems are trying to enter a market still built around legacy venue rules. The SEC proposal does not mention tokenized equity platforms as direct beneficiaries, and it would be too strong to say the rule change is being written for crypto. But by focusing on execution competition, simplification, and technology-driven venues, the proposal lands in a policy zone tokenized-stock builders have been watching.

Rule 611 is often called the trade-through rule. It prevents trading centers from executing orders at prices inferior to protected quotations displayed by other venues. On paper, that sounds like basic investor protection. In a fragmented market, however, it also creates a dense routing system where venues, brokers, and market makers must monitor quotes across the national market system and route around protected prices.

The SEC says its proposal would rescind Rule 611, Rule 610(e), and related defined terms. Rule 610(e) deals with locked and crossed quotations. Together, these changes would reduce a layer of mandatory venue interaction and place more responsibility on competition and execution quality rather than a rigid routing framework.

Tokenized equity platforms have a simple pitch: faster settlement, programmable ownership, fractional access, and trading infrastructure that can operate differently from legacy exchanges. The challenge is that any venue dealing with securities eventually runs into the existing market-structure rulebook. Removing a legacy routing obligation would not automatically legalize or green-light tokenized equities, but it could reduce some of the friction around alternative execution models.

For crypto-native firms, the important point is less the exact legal mechanism and more the direction of travel. The Atkins-led SEC appears willing to revisit rules that were built before on-chain settlement, smart contracts, and 24/7 digital-asset markets were serious policy considerations. That does not remove compliance requirements, custody issues, or investor-protection obligations. It does suggest that market-structure reform is back on the table.

The proposal is not final. Public comments remain part of the process, and market incumbents are likely to push competing views. Large exchanges, brokers, high-frequency firms, and alternative trading systems all have reasons to argue over how much protection Rule 611 still provides and how much complexity it creates.

For crypto markets, the safer takeaway is this: the SEC is not directly handing tokenized equities a green light, but it is challenging one of the assumptions baked into traditional equity trading. If blockchain-based securities venues want to compete, a simpler and more flexible market-structure environment would be a useful starting point.

This article was written by the News Desk and edited by Samuel Rae.

This report is based on information from the SEC. at SEC Proposal