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The SEC wants to tear up two of its own rules. Specifically, it’s proposing to rescind Rules 611 and 610(e) of Regulation NMS — a pair of regulations that have shaped how U.S. equity trades get executed for roughly twenty years.
Rule 611, widely called the “Order Protection Rule,” forces trading centers to avoid filling orders at prices worse than protected quotations available elsewhere in the market. The idea was solid enough when it launched: stop traders from getting a raw deal when better prices existed on other venues. Rule 610(e) sits alongside it, aimed at guaranteeing fair access to market data and quotes. Both rules came out of the same regulatory push to clean up equity markets and make them more transparent. And for a while, they probably did exactly that.
But the SEC now thinks these rules have outlived their usefulness — or worse, that they’re actively making things harder.
What the SEC Says Is Broken
The commission’s position is pretty straightforward. Markets have changed a lot since these rules first went live nearly two decades ago. Trading technology has moved fast. Venues have multiplied. The way orders flow through the system looks almost nothing like it did when Regulation NMS was written. And the SEC believes Rules 611 and 610(e), rather than protecting anyone at this point, have basically created a tangle of compliance requirements that raise costs without delivering proportional benefits.
Critics of the rules — and there have been plenty over the years — have long argued that the Order Protection Rule in particular forces brokers and trading centers into awkward routing decisions just to satisfy a technical requirement, not because it actually gets clients better prices. The rule can fragment liquidity across venues in ways that weren’t anticipated. It’s a real operational headache, and the SEC seems to have finally decided the headache isn’t worth it.
Removing 610(e) alongside 611 makes sense from a structural standpoint. The two rules are intertwined. Strip one out without addressing the other and you’d probably create new inconsistencies. The agency is proposing to pull both.
The SEC thinks doing so would make market interactions more straightforward and cut trading costs. That’s the pitch, anyway. Whether it actually plays out that way is unclear yet — markets are complicated, and rule changes have a way of producing surprises.
Comment Period Opens, Timeline Murky
Right now the proposal is open for public comment. The SEC is actively soliciting views from market participants, industry groups, and anyone else with a stake in how equity trading works. That feedback will matter. The commission has said it’s particularly interested in how the proposed changes might affect market liquidity and competition — two things that are genuinely hard to predict in advance.
No timeline has been set for a final decision. The SEC didn’t give a date for when the comment period closes, and it hasn’t said when — or even if — the changes would take effect. So this is still early days. A lot can shift between a proposal and an actual rule change.
For crypto markets, the move is worth watching even if it doesn’t touch digital assets directly. Equity market structure debates have a habit of spilling over. Conversations about order protection, best execution, and venue competition are live in crypto too, especially as regulated crypto trading venues in the U.S. continue to grow and face pressure to adopt more formal market structure rules. What the SEC decides to do with Regulation NMS probably shapes the thinking around any future crypto market structure framework. It’s not a direct hit, but the ripple effects could be real.
And the broader signal here matters. The SEC is willing to revisit rules it put in place nearly twenty years ago and say, flat out, that they’ve caused problems. That’s not nothing. Regulators don’t often walk back their own frameworks this openly.
The agency frames the proposal as part of a wider effort to make sure regulations keep pace with how markets actually operate today. Whether you think the SEC is right to pull these rules or not, the willingness to reconsider them is probably the most notable part of the story. Plenty of market participants have been pushing for exactly this kind of review for years.
Stakeholders have until the end of the comment period — exact date not yet specified — to weigh in. The commission says it’ll use that input to make a well-informed final call. Until then, the rules stay in place.
The proposal is pending review. No final vote has been scheduled.
Frequently Asked Questions
What specific rules is the SEC proposing to eliminate?
The SEC is proposing to rescind Rules 611 and 610(e) of Regulation NMS, which have governed order protection and fair access to market data in U.S. equity markets for roughly twenty years.
Why does the SEC want to remove the Order Protection Rule?
The SEC believes Rule 611 has created unforeseen complexity and higher trading costs without proportional benefits, and that markets have evolved significantly since the rule was first introduced.
