SEC Opens Five-Year Sandbox for Tokenized U.S. Stocks, With Guardrails

A Regulated Path for Tokenized Stocks

The SEC has introduced a long-awaited "innovation exemption" that creates a five-year window for qualifying platforms to trade tokenized U.S. stocks without registering as national securities exchanges. This marks a major shift for blockchain-based securities in the U.S.

Until now, any platform bringing buyers and sellers of tokenized stocks together risked being treated as a traditional exchange, forcing blockchain trading into rules designed for the NYSE and Nasdaq. The new framework instead allows firms to experiment with trading real stocks on public blockchains.

The key distinction is that these tokens must represent actual ownership of a stock, not merely track its price. The SEC's temporary sandbox permits specialized Tokenized Securities Venues (TSVs) to facilitate trading through smart contracts and liquidity pools without full exchange registration. Certain liquidity providers can also receive relief from dealer registration requirements.

Rights and Guardrails

Tokenized shares must preserve the voting, dividend, and other rights of traditional stock. If a stock is halted on its primary market, its tokenized counterpart must also stop trading. Synthetic products that only track share prices are excluded from the exemption.

The framework allows tokenization by the issuing company or, under certain conditions, by an unaffiliated third party. Before listing a third-party tokenized stock, a venue must give the company 30 days' notice, and the issuer can object. SEC officials noted an objection could simply be the company saying it does not want its securities tokenized on that venue.

Access to the trading venue remains permissioned, even though the underlying blockchain must be public and auditable. The software running the market must be public and deployed on a public, permissionless blockchain. This means stocks will not suddenly trade freely on popular decentralized exchanges.

The experiment is deliberately small. For the most liquid stocks, each venue can tokenize up to 75 names and handle no more than 0.25% of average daily trading volume. For a second tier, the cap rises to 250 names and 2.5% of average daily volume, according to Jamie Selway, the SEC's director of trading and markets.

For example, Tesla, with average daily volume of about 40 million shares, could theoretically see up to roughly 100,000 tokenized shares traded per day on a qualifying venue — about $36.6 million at a $366 share price. Selway said the motivation was to "make a modest start" and measure the effect.

Market Structure and DeFi Parallels

Qualifying venues can use automated market makers (AMMs), where investors trade against pools of assets controlled by software rather than relying solely on traditional order books. The SEC is granting certain liquidity providers conditional relief from dealer registration so they can supply assets to those pools.

The bigger disruption may be for exchanges themselves. The SEC has created a temporary category of stock-trading venue that can bring buyers and sellers together without becoming another NYSE or Nasdaq. This allows the industry to test whether a DeFi-style model can work for regulated U.S. equities.

However, calling this "DeFi for stocks" requires an asterisk. The technology may look like DeFi — public blockchains, smart contracts, AMMs, and liquidity pools — but access remains permissioned. Participants, including retail investors, institutions, and broker-dealers, can potentially join if they meet the venue's access requirements.

Securitize CEO Carlos Domingo told CoinDesk he expects the framework to accelerate "native tokenized securities" and eventually create multiple onchain liquidity venues. Firms building AMMs and public blockchains could benefit if their technology is used under the hood of regulated markets. "This is like a super good middle ground that will allow a lot of crypto innovation to happen in a controlled and regulated way," Domingo added.

What It Means for Investors and Issuers

For investors, the plumbing could change. They could still own a real share of a familiar company, with voting and dividend rights, but the representation of that ownership and trading infrastructure could run on blockchain rails. That could eventually enable faster settlement, more programmable markets, and potentially longer trading hours.

The SEC insists a tokenized stock remain a stock in more than name. A qualifying token must grant the same rights and privileges as the equivalent traditional share.

This is important because some overseas products marketed as "tokenized stocks" are actually synthetic instruments that merely track price and lack traditional shareholders' rights. Those do not qualify for this exemption.

As Gabo Otte, CEO of Dinari, told CoinDesk: "Putting stocks onchain shouldn't mean stripping away the rights that make them stocks in the first place." The SEC is not banning synthetic products or changing their legal status. Selway said the new policy has no direct effect on existing synthetic products. What may change is investor preference, as products structured as "a true form of equity, done in the U.S. with our rule of law" could prove more attractive.

Perpetual swaps tied to equities, popular on crypto venues such as Hyperliquid, fall outside the framework because they provide derivative price exposure rather than actual ownership.

Bigger Picture

Tokenized stocks existed before this exemption. What changed is that the SEC created a defined regulatory lane for experimenting with a secondary market for them. The timing follows the Clarity Act failing to advance in the Senate on Tuesday with 49 votes, short of the 60 needed.

The next day, SEC Chair Paul Atkins said the agency would act within existing authority to provide regulatory certainty. A day later, the tokenization exemption came.

The five-year window is important, as the agency treats the exemption as a live experiment rather than a finished regulatory regime. Selway said the SEC chose exemptive powers to start smaller, gather evidence, and "let that inform rulemaking and let that also potentially inform legislation."

This is the second major tokenization development from the SEC this month. Earlier in September, the agency proposed allowing blockchain to serve as the official record of securities ownership, potentially eliminating the need for a separate traditional shareholder record. That proposal tackled who officially owns the stock; this exemption addresses where and how it can trade.

Coinasity's Take

The SEC's innovation exemption is a pragmatic step that bridges traditional finance and blockchain without abandoning investor protections. By limiting volumes, requiring permissioned access, and preserving shareholder rights, the regulator has created a controlled environment to test DeFi-style market structures on real equities. This could accelerate institutional adoption of tokenized securities and provide valuable data for future rulemaking.

While not a full embrace of decentralized trading, it signals a willingness to modernize market infrastructure. The five-year sandbox may well become the blueprint for how tokenized assets integrate into the U.S. financial system.