What Does the SEC 24-Hour Trading Roundtable Mean?

In brief: The U.S. Securities and Exchange Commission convened a public roundtable on September 17, 2026, to plan for around-the-clock equity trading, the schedule that foreign exchange, gold, and crypto markets already run. Chair Paul Atkins told participants that clearing, market data, and price-protection plumbing are being rebuilt to support overnight sessions, and that DTCC has already gone live with a 23-hours-a-day, five-days-a-week clearing model. The direction of travel is a near-continuous U.S. equity market, and the open question is how far it goes before the last gaps in oversight and liquidity are closed.

The SEC has begun formally preparing for a market that never closes. On September 17, 2026, the regulator hosted a roundtable on preparations for 24-hour trading, a day-long session that gathered exchanges, clearing houses, asset managers, and trading firms to work through what it takes to run U.S. equities overnight. The framing was deliberate. Continuous trading is already the norm in foreign exchange, gold, and digital-asset markets, and the Commission is now studying how to align listed equities with what it calls an always-on global economy.

Twenty-four-hour equity trading means investors can buy and sell exchange-listed shares and funds at almost any hour of the day, five days a week, rather than only during the traditional 9:30 a.m. to 4:00 p.m. Eastern session. That is the destination the industry is building toward, and the roundtable was the point at which the SEC put its own name on the process rather than leaving it to individual exchange filings.

Why is the SEC holding a roundtable now?

The timing follows a run of concrete steps, not a sudden shift. In February 2025 the SEC granted accelerated approval to NYSE Arca to lengthen its trading sessions, clearing the path to roughly 22 hours a day for listed equities and funds. Later that year, 24X National Exchange opened as the first SEC-approved 23/5 stock exchange, beginning its first stage of operation in October 2025. Nasdaq then filed to extend its own U.S. equities trading to 23 hours a day, five days a week, a proposal the SEC approved in April 2026, with the exchange later setting a December launch for the near-continuous schedule.

Those approvals created a policy problem the SEC could no longer route around. Once multiple venues are matching trades at 3:00 a.m., the supporting infrastructure, the clearing, the consolidated market data, and the safeguards against runaway prices, has to keep pace. The roundtable was the Commission's attempt to coordinate that build-out in public rather than approve it piece by piece.

Chair Paul Atkins had already signaled the direction a year earlier. In a September 2025 joint statement with the acting head of the CFTC, Atkins wrote that the two regulators should "collaborate to consider the possibility of further expanding trading hours, where appropriate," citing operational feasibility and liquidity alongside investor protection. The statement named foreign exchange, gold, and digital assets as markets that already trade continuously, and argued that longer hours could better align U.S. markets with a global economy.

What did SEC officials say about the plumbing?

The most substantive material came from the officials describing the infrastructure. In his remarks at the roundtable, Atkins said the settlement layer is already moving. The Depository Trust and Clearing Corporation, he noted, has gone live with 23-by-5 trade-capture systems to support clearance and settlement, a claim confirmed by DTCC's own announcement that its National Securities Clearing Corporation extended clearing hours to a 24x5 model in June 2026. That matters because a trade executed overnight is not truly complete until it can be cleared and settled through the same pipes that handle daytime volume.

Atkins also pointed to two other pieces. The industry has adopted a plan to establish overnight price bands, requiring every trading center active during overnight hours to maintain written policies and procedures that prevent trades outside those bands, a guardrail against the thin-liquidity air pockets that can send an overnight quote wildly off fair value. And work is ongoing to prepare the Securities Information Processor plans, the systems that publish a consolidated national price, for overnight dissemination. Without a reliable overnight tape, an investor trading at 2:00 a.m. cannot see where the whole market is, only where one venue is.

Commissioner Hester Peirce struck a measured tone in her own remarks, observing that the equity market is "not breaking new ground" and can learn from markets that already run through the night. She noted that certain index options trade overnight and that futures markets generally follow a 23/5 schedule close to where equities are headed. The message was that the model is proven elsewhere, and the task now is disciplined translation rather than invention.

Who was in the room?

The panelist list read as a cross-section of the market's core operators, which is itself a signal of how seriously the industry is taking the shift. According to the SEC's agenda and panelist announcement, the sessions drew NYSE, Nasdaq, Cboe, and MEMX among the exchanges, BlackRock, State Street, and Invesco on the asset-management side, and Citadel Securities, Virtu, and Jane Street among the market makers, alongside DTCC, FINRA, and retail-facing firms including Robinhood, Charles Schwab, and Interactive Brokers. Jamie Selway, director of the SEC's Division of Trading and Markets, joined Atkins in opening the day.

That breadth reflects the reach of the change. Extended hours touch execution venues, the firms that price risk into overnight quotes, the custodians and clearers that settle the trades, and the platforms where retail orders originate. Getting the schedule right requires all of them to move together.

What does this mean for institutions?

For asset managers and issuers, the practical stakes are less about the headline hours and more about the machinery underneath. A near-continuous market changes how net asset values are struck, how corporate actions and news are absorbed, and how operational teams staff a trading day that no longer has a clean close. Firms preparing for 24x5 equities in 2026 have flagged the loss of the overnight maintenance window as a genuine technology and controls problem, since systems that once relied on a quiet period now have to run and be supported around the clock.

The move also sharpens a longer argument about programmable and composable market infrastructure. The appeal of a market that settles and reprices continuously is that assets become easier to move, finance, and audit across time zones without waiting for a bell. The risk, which the roundtable exists to manage, is that liquidity and oversight thin out precisely when a retail investor is least equipped to notice. That tension is why investor-protection advocates have pressed the SEC to pair any expansion with strong disclosure and safeguards, and why the price-band and market-data work Atkins described is not a footnote but the substance.

What to watch next

The near-term markers are concrete. Nasdaq's move to a near-23-hour schedule is the next major venue to go live, and how its overnight sessions trade, whether spreads hold and volumes materialize, will shape how quickly other exchanges follow. The SIP overnight tape and the industry-wide price bands are the load-bearing pieces to track, because a continuous market without a consolidated overnight price and without protection against off-band trades is a market with visible gaps. And the SEC's own posture matters: the roundtable produced a supporting-data memorandum and a public comment file, and the Commission's read of that record will influence whether it lets the venue-by-venue expansion continue or moves toward a more unified framework.

The open question is where the line finally settles. Nearly every proposal on the table stops just short of a true 24/7 market, leaving a short daily pause for maintenance and reconciliation. Whether U.S. equities close that last gap, and on what terms, is the decision the September roundtable set in motion rather than resolved. For institutions building toward programmable, composable, and auditable assets, the direction is now clear enough to plan around, and Issuant is watching the same infrastructure signals that will determine how far the always-on market extends.