The SEC's 24-Hour Market: What Crypto Already Knows About the Night Shift

On September 17, the SEC will convene a roundtable on 24-hour equity trading. On its face, this is a procedural footnote—a regulator gathering information before it acts. But I've spent enough years in this industry to recognize the moment when a paradigm stops being a theory and starts becoming an infrastructure problem. The SEC isn't asking whether markets should run all night. It's asking how to govern a market that never sleeps. And here's the uncomfortable truth: the crypto industry already lived through this experiment. We have the scars to prove it. Let me be clear about what this roundtable actually represents. The SEC's choice to hold a discussion rather than publish a proposed rule tells us something important about the internal state of the Commission. When an agency is confident in its direction, it drafts. When it's uncertain, it convenes. The 24-hour trading question sits at the intersection of the Securities Exchange Act of 1934, the recently implemented T+1 settlement cycle, and a regulatory architecture built for a world where markets closed at 4 PM. The SEC is not merely extending trading hours. It is dismantling the temporal foundation upon which American market regulation was constructed. Consider what the current framework assumes. Reg NMS presumes a national market system that operates during defined hours. Reg SCI requires system continuity plans that contemplate "extreme but reasonably likely" events—but those events were always framed within a trading day. Rule 15c3-3 protects customer assets in a rhythm of daily settlement. Even the newly implemented T+1 cycle, which the SEC approved in 2024, was designed around the assumption that trading ends, then settlement happens, then the cycle resets. Twenty-four-hour trading breaks every one of these assumptions simultaneously. This is not a rule change. It is a regulatory regime change. I've audited enough trading systems to know that the technical challenges are real but solvable. Matching engines can run continuously. Risk systems can stream in real time. The infrastructure exists—crypto exchanges have been doing this for over a decade. But the compliance architecture is a different story entirely. When I worked with DAOs on governance frameworks, we learned that the hardest problems were never technical. They were human. The same lesson applies here. The first casualty of 24-hour trading will be the compliance department's sleep schedule. Best execution obligations don't pause at midnight. Neither do anti-money laundering screening requirements. Neither does the duty to monitor for market manipulation. The SEC's own framework demands that broker-dealers maintain surveillance systems capable of detecting fraudulent activity. In a 24-hour market, that means compliance teams operating in shifts, monitoring tools running continuously, and decision-makers available at 3 AM when a system anomaly triggers a regulatory reporting obligation. Most firms are not remotely prepared for this. The ones that are—the brokerages that already run crypto trading desks—will have a structural advantage that has nothing to do with technology and everything to do with organizational design. Here's what I mean. Robinhood and Interactive Brokers already operate 7×24 platforms for digital assets. They've built the night-shift compliance protocols, the real-time monitoring stacks, the escalation chains that function outside business hours. When the SEC opens the door to 24-hour equity trading, these firms don't need to build new infrastructure. They need to extend existing infrastructure to a new asset class. Traditional brokers, by contrast, will need to construct an entirely new operational model from scratch. The competitive asymmetry is staggering. Code is law, but people are the soul—and the people who know how to run a market at 3 AM are currently working in crypto. The second casualty will be the AML framework. Overnight hours are when cross-border transactions become harder to trace, when suspicious activity can hide in low-liquidity windows, when the compliance staff is thinnest. I've seen this pattern in decentralized finance, where the 24/7 nature of the market created persistent gaps in transaction monitoring. The SEC and FINRA will demand that broker-dealers maintain continuous surveillance. But continuous surveillance requires continuous human judgment, not just continuous software. The firms that figure out how to combine automated detection with human oversight across all time zones will set the standard. The firms that don't will become enforcement case studies. Now let me address the question that nobody in the traditional finance world wants to ask: why is the SEC doing this at all? The official narrative is market modernization and investor demand. But the subtext is competitive pressure. American equity markets are losing trading volume to crypto markets precisely because crypto never closes. An investor in Tokyo who wants to trade Apple at 2 AM Tokyo time can either wait for the New York open or trade a tokenized version of Apple on a 24/7 exchange. The SEC sees this. The roundtable is not just about extending hours. It's about defending the relevance of the traditional market structure against a competitor that operates on a different temporal logic. This is where my contrarian instinct kicks in. The conventional wisdom says that 24-hour trading will be good for retail investors, who will gain access to markets at their convenience. But I've seen how overnight markets actually behave in crypto. Liquidity thins. Spreads widen. Manipulation becomes easier. The investors who trade during the night shift are often the least sophisticated ones—the ones who are checking their phones at 2 AM because they're anxious, not because they've identified an opportunity. Extending trading hours without addressing the liquidity and manipulation risks is not investor protection. It's investor exposure. The critical variable is market maker participation. If Citadel Securities and Virtu Financial decide that overnight market making isn't profitable enough—or that the risk of adverse selection in thin markets is too high—the entire experiment collapses. A 24-hour market without committed liquidity providers is not a market. It's a trap. The SEC can mandate infrastructure, but it cannot mandate willingness. The economics have to work. And the economics of overnight market making are genuinely uncertain. There's a deeper governance question here that I find myself returning to as someone who designs DAO frameworks. The SEC's roundtable is an information-gathering exercise, but it's also a legitimacy-building exercise. By convening stakeholders—exchanges, brokers, market makers, investor advocates—the SEC is constructing a consensus narrative before it writes rules. This is smart politics. But it also means that the firms participating in the roundtable have an extraordinary opportunity to shape the regulatory outcome. The ones who show up with thoughtful positions on overnight liquidity, on compliance staffing, on risk disclosure requirements, will influence the rulemaking in ways that passive observers cannot. Don't govern the exit, govern the entrance. The firms that engage early with the SEC's process, that volunteer for pilot programs, that demonstrate genuine commitment to investor protection in the overnight window, will define the standards that everyone else must meet. The firms that wait to see how the rules develop will find themselves reacting to standards they had no hand in shaping. Let me also flag the international dimension, because it's being underweighted in the current discussion. If US markets go 24/7, Asian and European regulators will face immediate pressure to respond. The Japanese FSA, the Singapore MAS, the UK FCA—they will all need to consider whether their own market structures can remain competitive. This creates a regulatory cascade effect. And it raises complex questions about cross-border data flows, about which jurisdiction's rules apply when a Singaporean investor trades US equities at 3 AM Singapore time, about how AML obligations are allocated across time zones and legal systems. The SEC cannot solve these problems alone. It will need international coordination. And international coordination is slow. My assessment, based on the patterns I've observed in both traditional finance and crypto governance, is that we are looking at a 12-to-24-month window before formal rulemaking begins. The roundtable will be followed by a concept release, then a proposed rule, then a comment period, then final adoption. Each step will be contested. Industry groups will challenge the SEC's authority under the major questions doctrine. Investor advocates will demand stronger protections. The process will be messy. But the direction is clear. The market is moving toward continuous operation, and the regulatory framework will eventually follow. The firms that thrive in this transition will be the ones that treat 24-hour trading not as a compliance burden but as an organizational transformation. They will build the night-shift teams, the real-time risk systems, the cross-functional governance structures that continuous markets demand. They will recognize that the challenge is not technical but human—that the soul of a 24-hour market is the people who keep watch while the rest of the world sleeps. I've spent my career watching decentralized systems struggle with the problem of continuous governance. The lessons are transferable. You need clear escalation paths. You need redundancy in human judgment, not just in software. You need a culture that values the night shift as much as the day shift. And you need to remember that the market is not the infrastructure. The market is the people who participate in it. Code is law, but people are the soul. The SEC's roundtable on September 17 is the beginning of a long conversation. The question is not whether 24-hour trading will happen. It's whether we will build the governance structures to make it work for everyone—or whether we will let the night shift become a zone of risk and exclusion. The crypto industry already learned this lesson the hard way. The traditional market is about to learn it too. The only question is whether they'll learn it faster than we did.