SEC Just Opened a Rule 611 Door for Tokenized Stocks

SEC Rule 611 Proposal Targets Trade-Throughs

The SEC rulemaking page lists File Number S7-2026-20 and Release No. 34-105655. It says the commission is proposing to rescind Rules 611 and 610(e), remove related defined terms in Rule 600 and make conforming changes to other provisions.

Rule 611 blocks trade-throughs in NMS stocks. In plain terms, a trading center generally cannot execute a stock order at a worse price when another protected quote is available elsewhere. Rule 610(e) deals with quote displays that lock or cross other protected quotations.

The SEC’s fact sheet says the rules were adopted in 2005 and that U.S. equity markets are now highly competitive, interconnected and automated. The agency said the old framework has contributed to higher costs, more complexity, limited order-handling choice and fragmentation.

The proposed rule also says the combined rescission would carry about $40.9 million in one-time implementation costs, while the present value of total monetized benefits could range from about $393.9 million to $666.8 million depending on the discount rate and assumptions. Those figures frame the proposal as a Wall Street cost and routing issue even before the crypto angle is considered.

Tokenized Stocks Angle Runs Through AMMs

The tokenized-stock hook is not only coming from crypto commentators. The SEC’s 267-page proposing release says distributed ledger technology allows issuers to tokenize a security in crypto-asset form and that smart contract applications underlying automated market makers have introduced new methods of trading securities.

That language matters because an automated market maker does not work like a conventional stock exchange order book. A DeFi pool executes against its own formula-driven price, with slippage and block timing, rather than routing each trade across every protected quote in the national market system.

That mismatch is why Rule 611 has become a useful search phrase for tokenized-stock traders. If a tokenized NMS stock traded inside a DeFi pool, the pool would need a way to avoid executing against an inferior price when a protected quote existed elsewhere. That is difficult to square with permissionless liquidity pools, especially if trades settle through smart contracts rather than broker-routed exchange systems.

The proposal does not create a tokenized-stock safe harbor. It does not answer whether a platform must register as an exchange or alternative trading system, who clears the trade, how shareholder rights pass through, whether a token holder owns the share or a claim, or how off-hours liquidity should be supervised.

Still, the SEC’s willingness to revisit the 2005 framework gives tokenized equity projects a concrete rulemaking record to engage. That is a stronger catalyst than another product launch because it lets issuers, venues, broker-dealers and DeFi infrastructure teams argue from the same federal docket.

Comment Clock Leaves Big Questions Open

The next formal deadline is not a calendar date yet. The SEC said comments will remain open for 60 days after the proposing release is published in the Federal Register, and submissions should refer to File Number S7-2026-20.

For crypto markets, the comment record may be as important as the proposal itself. If tokenized-stock firms want U.S. access, they will need to explain how automated execution, custody, transfer restrictions, disclosures, market surveillance and best execution would work without recreating the same centralized routing system that made Rule 611 hard for DeFi to satisfy.

The subject also connects with the SEC’s broader digital-asset agenda. The agency’s draft strategic plan put tokenized offerings, onchain financial infrastructure, custody, trading and staking inside its 2026 to 2030 roadmap, a shift Daily Crypto Briefs covered in the SEC digital assets plan.

Traditional exchanges are already moving in the same direction. NYSE has outlined a tokenized securities platform built around 24/7 trading and instant settlement, which shows why market-structure rules are becoming part of the crypto story rather than a separate equities issue.

The market mood remains weak.

Low sentiment does not stop rulemaking, but it can affect how quickly new products gather liquidity. Tokenized stocks are growing while bitcoin remains under pressure, which makes the SEC proposal less about near-term risk appetite and more about whether U.S. equity markets can adapt to onchain trading without stripping away investor protections.

What remains unknown is whether the SEC will finalize the rescission, change the proposal after comments or pair it with other execution-quality rules. Until then, Rule 611 is a live regulatory keyword for tokenized stocks, DeFi market makers and any U.S. venue trying to put equities onchain.