SEC Reconsiders Crypto Rules as Onchain Finance and AI Trading Collide

The SEC is starting to admit that onchain finance doesn’t fit neatly into the old broker-exchange-clearinghouse playbook. That’s a big deal for crypto market structure, DeFi regulation, and the future of AI-driven trading.

• SEC crypto rule changes are being reviewed for onchain markets
• DeFi and TradFi are colliding inside hybrid blockchain systems
• AI finance could push trading to machine speed
• CLARITY Act may split oversight between the SEC and CFTC

SEC Chair Paul Atkins said the agency is taking a fresh look at whether existing securities laws still work for blockchain-based financial systems as more trading activity moves onchain. He made the remarks at the AI+ Expo in Washington, where the overlap between blockchain, artificial intelligence, and financial markets was front and center. The discussion follows growing scrutiny over SEC Weighs Crypto Rule Changes for Onchain Markets and AI Finance.

The basic issue is simple enough: U.S. securities rules were written for a financial system built around intermediaries like brokers, exchanges, and clearinghouses. Onchain markets don’t always work that way. A decentralized protocol can handle trade execution, liquidity routing, collateral management, and transaction settlement inside one software-driven system. That makes the old regulatory boxes feel less like legal categories and more like relics from a museum.

“Current SEC regulations were built around traditional financial intermediaries such as brokers, exchanges and clearinghouses.”

“Blockchain technology now allows many of these functions to operate within a single decentralized protocol.”

“Modern onchain systems can execute trades, manage collateral, route liquidity and settle transactions automatically through software-driven platforms.”

For readers less familiar with the jargon: onchain means activity that happens directly on a blockchain. That can include trading, lending, settling transactions, or moving collateral. DeFi, short for decentralized finance, refers to financial services built with smart contracts rather than traditional middlemen. TradFi, or traditional finance, is the legacy system built around banks, brokers, and clearing firms.

The reason this matters is that decentralized finance does not just change how assets move. It changes who does the work. In traditional markets, a trade might pass through several institutions before it is fully finalized. A clearinghouse helps ensure the trade is completed properly, while collateral management is the process of handling assets pledged to support a loan, trade, or position. Onchain systems can automate much of that through code. No office hours. No fax machine. No “please hold while we escalate this to compliance.”

Why SEC crypto regulation is under pressure

Atkins’ comments reflect a broader shift in how Washington is approaching crypto market structure. Under former SEC Chair Gary Gensler, the agency leaned heavily on enforcement actions to pressure the industry into compliance. That strategy may have satisfied the SEC’s love of courtroom muscle flexing, but it also left exchanges, developers, and protocol teams guessing where the rules actually were.

The result was regulatory uncertainty that drove innovation into a fog bank. Some firms adapted, some fought back, and some simply left the U.S. market rather than keep playing legal whack-a-mole. The new tone from the SEC suggests a growing recognition that blockchain-based finance is not just a speculative side quest. It is becoming infrastructure.

Atkins said many of these systems are neither purely DeFi nor purely TradFi, but hybrids.

“Many blockchain financial systems combine elements of both decentralized finance (DeFi) and traditional finance.”

That point is important because a lot of crypto networks are messy in exactly the way regulators hate. Some are genuinely decentralized. Some are really just centralized platforms with a blockchain veneer slapped on top. And plenty sit somewhere in between. That distinction matters because the legal treatment of a fully open protocol should not automatically be the same as a company-run trading venue pretending to be “community driven” while one team controls the keys.

There is also a fair counterpoint from the regulator’s side. Automation does not magically erase fraud, manipulation, or investor losses. It just changes where the risk sits. A smart contract can settle trades instantly, but it can also be exploited instantly. A decentralized system can be resilient, but it can also be a beautifully engineered machine for liquidations, scams, and self-inflicted chaos if the incentives are rotten. Code is not a moral force field.

What the SEC is considering

According to Atkins, the SEC is weighing several responses: formal rulemaking, regulatory exemptions, and clearer guidance for digital asset markets. That is a notable shift from the old posture of “sue first, clarify never.”

Formal rulemaking would give the industry something much more useful than vague speeches and courtroom drama: actual written rules. Exemptions could carve out room for certain blockchain systems to operate without being forced through the same framework as Wall Street’s legacy plumbing. And clearer guidance could help crypto firms understand what the SEC thinks a security is, what it does not, and where the agency intends to draw the line.

That said, clarity is not automatically freedom. Regulators can use “clarity” as a polite word for tighter control. If they try to drag open blockchain networks into bank-style compliance structures without accounting for how they actually function, the result will be a mess. Not sophistication. Not investor protection theater. Just a slow, expensive attempt to force software-native finance into 20th-century boxes.

The industry has a legitimate interest in regulation that targets fraud, insider games, and false promises without suffocating decentralized protocols under rules designed for custodial intermediaries. The challenge is drawing that line without pretending all crypto is the same, because it clearly is not.

Why the CLARITY Act matters

Atkins also voiced support for crypto market structure legislation, including the proposed CLARITY Act. In plain English, market structure rules decide who can trade what, on which platform, under what standards, and which regulator gets to police the mess when things go sideways.

The CLARITY Act would create a shared framework between the SEC and the Commodity Futures Trading Commission, or CFTC. That matters because the SEC and CFTC have spent years circling each other like two agencies in a jurisdictional cage match, each trying to decide whether a digital asset looks more like a security or a commodity.

“The CLARITY Act… would establish a shared regulatory framework between the SEC and the Commodity Futures Trading Commission (CFTC) for digital assets.”

A shared framework could reduce uncertainty for crypto firms trying to build products without tripping over contradictory rules. It could also help separate assets that behave like investment contracts from those that function more like commodities or network tokens. That distinction is not just legal trivia. It determines how companies list assets, how platforms build compliance systems, and which agency can come knocking.

For bitcoin, that kind of clarity would be welcome. BTC has long been easier to classify than many other digital assets, though Washington has a special talent for making simple things complicated. For Ethereum and other ecosystems with more active protocol development and governance complexity, the regulatory questions get messier fast. For DeFi, they get messier still.

AI finance raises the stakes

Atkins also pointed to another force pushing markets into new territory: AI agents. These are software systems that can make trading and financial decisions at machine speed, with minimal or no human intervention. In other words, if crypto already made the market faster, AI may decide it was still too slow.

“AI agents are expected to participate in trading and financial decision-making at machine speed.”

That is where the SEC’s challenge gets even more serious. Onchain markets already compress finance into software. AI can compress decision-making into software too. Put them together and you get a system where trades, liquidity shifts, rebalancing, and settlement could all happen faster than a human can refresh a dashboard.

That speed brings obvious upside. Markets could become more efficient, liquidity could be routed more intelligently, and settlement could happen with fewer delays and fewer middlemen. But it also opens the door to new failures: algorithmic herd behavior, flash crashes, bad model assumptions, and fresh attack surfaces for manipulative actors who know how to game automated systems.

And let’s not pretend the crypto industry is free from bad actors. It is loaded with them. Scammers, fake volume merchants, leverage addicts, and self-appointed “quant” prophets have been circling digital assets for years. Throw AI into that stew and you get either a breakthrough or a disaster, and sometimes both before lunch.

SEC crypto rule changes could reshape market structure

The big shift here is not that the SEC suddenly loves crypto. It does not. The more meaningful change is that the agency seems to be acknowledging that blockchain-based financial systems are no longer fringe experiments. They are becoming part of the plumbing.

That creates a policy problem, but also a policy opportunity. If the SEC gets this right, it could help legitimize useful onchain infrastructure and lower the uncertainty that has pushed builders offshore. Sensible rules could make it easier for serious projects to operate in the U.S. without constantly wondering whether they are one memo away from being treated like fugitives.

If the SEC gets it wrong, it could smother the exact thing that makes onchain systems valuable: permissionless access, rapid settlement, and the ability to replace some of the friction-heavy machinery of legacy finance. That would be a classic Washington move — recognize a breakthrough, then bury it under paperwork until the innovation gives up and moves to Singapore.

The balancing act is straightforward to describe and hard to pull off. Regulators need to protect investors, stop fraud, and preserve market integrity. But they also need to avoid forcing decentralized networks into the same molds as banks and brokerages just because those are the categories they already understand. Sometimes the software really is different. Pretending otherwise is how policy becomes self-parody.

Key questions and takeaways

What is the SEC considering changing?

The SEC is reviewing whether securities rules should be updated for blockchain-based markets through formal rulemaking, exemptions, and clearer guidance for digital asset activity.

Why do current securities laws struggle with onchain finance?

They were built for traditional intermediaries like brokers, exchanges, and clearinghouses, while onchain systems can combine trading, liquidity, collateral management, and settlement in one protocol.

What does onchain mean?

Onchain means activity that happens directly on a blockchain, such as trading, lending, transferring value, or settling transactions.

How do DeFi and TradFi differ?

DeFi uses decentralized software and smart contracts to provide financial services, while TradFi relies on centralized institutions like banks, brokers, and exchanges.

Why does the CLARITY Act matter?

It could create a shared regulatory framework between the SEC and CFTC, making it clearer which agency oversees which digital assets and reducing legal confusion for crypto firms.

Why is AI important in this debate?

AI agents may soon make trading and financial decisions at machine speed, which could improve efficiency but also create new risks around manipulation, volatility, and accountability.

Is the SEC becoming more crypto-friendly?

Not exactly friendly, but noticeably more flexible. The tone is shifting away from pure enforcement and toward guidance, rulemaking, and possible exemptions.

What is the main tension here?

The challenge is to regulate fraud and protect investors without crushing decentralized networks under legacy rules that were never designed for software-native finance.

The SEC is finally confronting a reality the crypto sector has been shouting about for years: blockchain-based finance cannot be treated like a carbon copy of 1990s market plumbing. Onchain markets, AI finance, and the growing overlap between DeFi and TradFi demand rules that actually match the technology. The question now is whether Washington can build those rules without turning a breakthrough into bureaucratic sludge.