What happened

The SEC laid out its intent to take over the Consolidated Audit Trail in an Aug. 10 letter, according to reporting by Crypto.News on Monday. The CAT, launched under Rule 613 after the 2010 Flash Crash, tracks every order, cancellation, and execution across U.S. equities and listed options. It is currently operated by CAT LLC, a company owned jointly by the national securities exchanges and FINRA, and funded through a fee split between exchanges and broker-dealers. Under the plan, the Commission would replace that structure, take direct operational responsibility, and rewrite the funding model. The transition is targeted to run through late 2027, a runway long enough to survive both the current Congress and the next SEC chair.

The letter did not spell out a final fee formula. It framed the takeover as a response to years of legal and industry pressure on the existing cost allocation, which broker-dealers have argued unfairly loaded them with the bill for a system they don't govern. A federal appeals court struck down parts of the 2023 CAT funding rule last year, forcing the Commission back to the drawing board.

Why it matters

CAT is the single largest financial surveillance database in the world. It ingests tens of billions of order events a day. Who runs it, who pays for it, and who reads it decides how U.S. markets are policed for the next decade.

The move also matters for crypto, and not for the reason most headlines will pick up. The SEC has spent the past three years arguing that tokenized equities, on-chain order books, and digital-asset ATSes should feed the same audit trail as legacy venues. A federally operated CAT gives the agency a cleaner lever to extend that reach without negotiating through CAT LLC's exchange-heavy board. The signal to any project building a compliant on-chain trading venue is that surveillance infrastructure is being centralized, not federated. That cuts against the direction the industry has been lobbying for since the Coinbase and Binance cases opened.