SEC Commissioner Uyeda Outlines Readiness Questions for 24-Hour Trading at Roundtable

Key Takeaways

• At the SEC's roundtable on 24-hour trading, Commissioner Mark Uyeda said technology is no longer the main constraint on overnight trading.
• He said the open questions concern whether market participants and regulators can manage clearing, settlement, staffing, resiliency, and liquidity risks around the clock.
• The speech creates no new requirements, but it signals the areas where future rulemaking or supervisory focus is likely, so compliance teams should begin assessing readiness now.

Deep Dive

At the SEC's roundtable on 24-hour trading, Commissioner Mark Uyeda said technology is no longer the main constraint on overnight trading. He said the open questions concern whether market participants and regulators can manage clearing, settlement, staffing, resiliency, and liquidity risks around the clock. The speech creates no new requirements, but it signals the areas where future rulemaking or supervisory focus is likely, so compliance teams should begin assessing readiness now.

The speech identifies several issues the SEC is likely to examine further. First, how clearing, collateral, payment, settlement, and default management systems will operate overnight. Second, where firms should add staffing and monitoring capabilities. Third, which failover, cybersecurity, and resiliency measures are appropriate for continuous trading. Fourth, whether tighter real-time connectivity with global markets will increase volatility in U.S. markets. He also noted that liquidity effects will vary by security. Overnight trading could relieve concentrated periods in some cases, but in others liquidity could spread too thin, reducing price discovery and execution quality. He said more information on these dynamics would help tailor oversight.

Compliance professionals should treat this as an early warning rather than a call to act on a mandate. Recommended steps include: (1) mapping current overnight and extended-hours activity, and planned expansion, against existing trading, clearing, and settlement processes; (2) assessing whether surveillance, best execution, market access controls, and supervisory coverage are adequate for overnight sessions; (3) reviewing business continuity, disaster recovery, failover, and cybersecurity plans for 24-hour operation, including vendor and third-party dependencies; (4) evaluating staffing models, escalation paths, and risk limits during off-hours; and (5) considering participation in the SEC's comment process or industry dialogue, since the Commissioner explicitly invited further information.

The main risks are operational resilience gaps, thin-liquidity execution quality problems, and settlement and collateral mismatches between overnight trading and existing clearing cycles. Firms that expand overnight offerings before these controls are in place may face heightened supervisory and examination scrutiny. Disclosures to retail investors about overnight liquidity and price risk are another likely focus. Because no timeline was given, firms should monitor roundtable outputs, staff statements, and any follow-on proposals from the Division of Trading and Markets.

Source: Securities and Exchange Commission