The U.S. Securities and Exchange Commission’s Division of Trading and Markets gave Paxos Trust Company time-limited no-action relief on October 28, 2019, allowing a tightly bounded production test of a private, permissioned ledger for settling certain U.S.-listed equity trades without Paxos first registering as a clearing agency.
The decision mattered less as a broad approval of “blockchain” than as a narrow opening in the plumbing of the American securities market. Paxos proposed placing a distributed ledger between qualified broker-dealers so cash and securities could move simultaneously on the settlement date. SEC staff agreed not to recommend enforcement under Section 17A(b)(1) of the Securities Exchange Act, but only while the service stayed inside detailed limits and reporting obligations.
What the SEC permitted
Paxos’s request, dated October 25, 2019, described a feasibility study lasting no more than 24 months. The SEC response dated October 28 accepted that framework. No more than seven participants could use the service. Eligible firms had to be registered broker-dealers, members of the Financial Industry Regulatory Authority, participants in the Depository Trust Company and maintain at least $100 million in excess net capital, among other requirements.
The securities universe was deliberately conservative. Eligible shares had to remain listed on a registered national securities exchange and satisfy Paxos’s price, liquidity and volatility screens. An active security also could not average more than 300 trades between any participant pair on approved venues. Daily targets capped settlement at fewer than 100,000 shares per security for each counterparty pair and below 1% of that security’s total average daily trading volume across all pairs. In the request, average daily volume meant a rolling one-month average.
Those constraints make the legal meaning precise. A no-action letter is a staff enforcement position based on stated facts; it is not a Commission rule, an exemption for the industry or a finding that the system complied with every applicable law. The SEC letter expressly said it offered no legal conclusion and could change if the facts changed.
Why the design was institutionally significant
The proposed service used a proprietary ledger to record changes in ownership of securities and cash. Participants would transfer securities from their DTC accounts into Paxos’s DTC account; Paxos would represent the deposited assets on its ledger, then execute delivery-versus-payment transfers between participant accounts. This was not an open cryptocurrency network, and the underlying shares were not being offered to the public as crypto tokens.
The institutional significance was that a regulated market participant had obtained a supervised path to test distributed-ledger settlement in a live environment. The test put claims about faster access to proceeds, data accuracy, auditability and operational efficiency into a limited production setting while preserving conventional custody and broker-dealer controls around it.
Paxos announced on October 28 that Credit Suisse and Société Générale would be the first users. That was the company’s contemporaneous statement, not proof that trades had already settled on the service. The announcement provided no launch date, so the verified development on October 28 was the regulatory relief and planned pilot—not a completed launch or measured cost saving.
The boundary of the milestone
The most defensible reading on October 28 was incremental. SEC staff allowed an experiment small enough to monitor: capped participants, restricted securities, margin requirements, volume limits, event notifications, and quarterly and ad hoc reporting. Paxos also committed to begin winding the study down by the 23rd month and finish within 30 business days unless a different regulatory basis emerged.
That combination made the letter consequential for digital-asset infrastructure while keeping its reach narrow. It showed one route by which distributed-ledger systems could enter regulated post-trade markets: through specific facts, de minimis scale and continuing supervision, rather than a general endorsement.
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