SEC Tokenized-Stock Exemption Creates a Narrow AMM Pilot, Not Open DeFi Trading

The U.S. Securities and Exchange Commission has created a temporary path for a Tokenized Securities Venue, or TSV, to offer automated-market-maker and liquidity-pool trading in tokenized National Market System stocks. The order is significant, but its scope is narrower than the phrase “stock trading on DeFi” might suggest.

SEC Release No. 34-106402, issued on September 17, 2026, grants conditional relief for five years to a qualifying TSV and certain liquidity providers. It does not identify a venue operator, authorize unrestricted public access or establish that any tokenized-stock trading has begun.

Instead, the order creates a supervised pilot with permissioned participation, security and volume limits, market-data obligations, issuer protections and continuing federal anti-fraud and anti-manipulation rules. The relief expires on September 17, 2031.

What the SEC order permits

Under the exemption, a TSV may use an AMM or liquidity-pool structure to facilitate secondary-market trading in tokenized NMS stocks for permitted participants. The venue and qualifying liquidity providers receive temporary relief from the Exchange Act definitions of an exchange and a dealer, provided they comply with the order’s conditions.

The tokenized stocks must carry the same rights and privileges as their conventional counterparts. Those rights include dividends, voting rights and residual rights in liquidation. Tokens that merely create synthetic exposure to a stock are excluded.

The distinction matters. The exemption concerns tokenized versions of actual NMS securities with corresponding shareholder rights, not instruments designed only to track a stock’s economic performance.

The SEC’s fact sheet identifies potential features of the model, including self-custody, 24-hour trading, fractional ownership and atomic settlement. Those are potential attributes of the framework, not evidence that a venue is live or that investors are already using one.

The pilot has firm limits

The order divides eligible activity into two tiers. The limits apply both to the number of securities available and to trading volume measured against the underlying stock’s prior-month average daily volume.

The TSV must provide 30 days’ operating notice and notify the SEC. When a third party tokenizes a company’s stock, the issuer must receive an opportunity to object. The exemption does not authorize primary issuance or initial public offerings through the TSV.

Market-data conditions are also central to the pilot. Trading data covering the preceding 30 days must be available in machine-readable form and updated within 10 minutes of trades. If trading in an underlying stock is halted, the venue must halt trading in its tokenized version as well.

These requirements make the exemption a data-producing regulatory trial rather than a general removal of securities-market rules. SEC Chairman Paul Atkins described the measure as a bridge toward durable rulemaking. The temporary structure gives the agency an opportunity to observe activity before deciding whether a longer-term framework is warranted.

Why an AMM does not erase market risk

The order also acknowledges a structural concern familiar to decentralized markets: prices generated from an AMM pool’s asset ratios can diverge from prices in the underlying stock market. That divergence may not remain isolated to the tokenized venue and could affect broader markets.

The trading caps, halt coordination and rapid data publication requirements provide tools for supervising that risk, but they do not prove that tokenized shares will maintain tight pricing, deep liquidity or efficient spreads. No actual volume, liquidity or spread data was available in the official materials reviewed for this article.

Federal securities-law provisions against fraud and market manipulation remain in force. The temporary relief addresses specified exchange and dealer definitions; it is not a blanket exemption from securities regulation.

What the order does not establish

The SEC’s materials do not name a specific TSV operator or say that a venue has started trading. They also do not support the conclusion that retail investors can immediately trade tokenized U.S. stocks on-chain.

The agency’s announcement and rule page for File No. 4-927 provide the official order and a route for public comment. The reviewed SEC pages did not confirm the timing of Federal Register publication or the comment deadline.

For now, the most accurate reading is that the SEC has authorized a restricted testing framework. Whether that framework develops into a functioning market will depend on a qualifying operator, compliance with the order and evidence produced during the pilot.

What to watch next

The first meaningful update would be the identification of a TSV operator and a formal operating notice. Subsequent evidence should include the securities admitted to each tier, participating liquidity providers and the required machine-readable trading data.

That data could begin to answer questions the order itself cannot resolve: whether tokenized prices track underlying shares, whether liquidity is durable, how spreads behave and whether the venue affects trading outside its own pools. Federal Register publication and a confirmed comment deadline would also clarify the procedural timetable.

Until those developments occur, the exemption should be understood as a conditional regulatory pilot—not proof that open DeFi stock trading has arrived.