Trade Rule Repeal
SEC Proposes Repealing Key Equities Trade-Through Rule, Citing Market Fragmentation and New Technology
Key Points
The SEC said the trade-through protections “failed to meet one of its basic goals” of incentivizing displayed liquidity, noting that “since its adoption the percentage of orders interacting with non-displayed liquidity on- and off-exchange has consistently increased.”
Consumer advocates warned that loosening the “best price” standard could show up as slightly worse execution prices specifically in retirement accounts—“including inside 401(k)s and IRAs”—and argued that while a fraction of a cent per trade seems small, it can compound over years of routine portfolio activity into a wider effective spread.
In his remarks, SEC Chairman Paul Atkins identified the specific provisions targeted as “Rule 611” (the Trade-Through Rule) and “Rule 610(e)” and said the proposal is intended to rescind both, after inviting public comment and data submissions following staff roundtables.
Even if the trade-through rule is removed, the SEC emphasized that other safeguards remain—specifically “other rules on quote transparency and broker responsibilities would stay in place even if this one goes.”
The SEC voted on June 11 to propose scrapping Rule 611, a 21-year-old regulation that forces brokers to give investors the best available stock price. Investment Executive reported that the rule, part of Regulation NMS since 2005, has been a cornerstone of U.S. equity market structure. SEC Chairman Paul Atkins called it a "grave misstep" that created an "opaque marketplace."
If finalized — expected around Q1 2027 — the repeal would end the requirement to match the National Best Bid or Offer, known as the NBBO, on every trade. Consumer advocates warn it could quietly cost retirement savers real money. Industry groups say it will cut costs and modernize markets.
What Rule 611 Did and Why Atkins Wants It Gone
Rule 611, called the "Order Protection Rule," was adopted in 2005. It stopped brokers from executing a trade at a worse price than the best quote shown on any U.S. exchange. The idea was simple: if the best price for a stock is $50.10, your trade had to get at least that. Markets Media reported that Chairman Atkins, who dissented against the rule when it was first adopted, argues it backfired badly.
Atkins says Rule 611 pushed brokers to connect to dozens of small exchanges just to check quotes, driving up costs and complexity. The SEC noted that "since its adoption, the percentage of orders interacting with non-displayed liquidity on- and off-exchange has consistently increased," meaning the rule failed to boost visible, public price quotes as intended. The SEC also wants to scrap Rule 610(e), which prevents "locked and crossed" quotes — where bids and offers overlap awkwardly across venues.
How Removing the Rule Could Hurt Retirement Savers
Better Markets, a consumer advocacy group, warned that dropping the rule would mean "worse prices for people saving for retirement and more profits for securities firms and high-frequency traders." The group said even a fraction of a cent lost per trade adds up. Inside a 401(k) or IRA, those tiny losses compound over decades into a meaningfully wider effective spread.
The SEC's own staff acknowledged that some large retail orders could see "slightly worse outcomes." Researchers also found that wholesalers — firms that handle retail order flow — already trade through unprotected odd-lot quotes a "significant share of the time," showing gaps that exist even now. Critics say removing the hard price rule gives brokers more room to route orders based on rebates or internal speed rather than the best price available.
Industry Groups and Traders Cheer the Change
The FIA Principal Traders Group argued that current rules impose "unimaginable increases in cost and complexity" and "exorbitant and unnecessary costs" on market participants. Seeking Alpha noted that the SEC frames the repeal as a way to let competition — not government mandates — drive how equity markets evolve. Analysts say it could cut the "invisible tax" brokers pay to exchanges for market data and connectivity fees.
SIFMA, the big Wall Street trade group, has generally supported streamlining the rules, though it asked for delays on other NMS changes to make sure they align with the Rule 611 review. The SEC stressed that other safeguards stay in place — quote transparency rules and broker "best execution" duties remain even if Rule 611 goes away.
What Happens Next and Who Gets to Weigh In
The SEC opened a 60-day public comment period after publishing the proposal in the Federal Register, with comments expected to close around August 10, 2026. MLex reported that this is part of a broader SEC push to modernize U.S. equity trading rules. A final rule is not expected until around Q1 2027, giving markets and critics time to respond.
Beyond retirement accounts, analysts say the repeal could accelerate the tokenization of stocks — letting digital securities trade on blockchain platforms without being forced to route through traditional exchanges. It could also squeeze smaller exchanges that depend on Rule 611-mandated connectivity fees for revenue, potentially pushing consolidation across U.S. trading venues.
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