The Future of Trading: SEC Lays Groundwork for 24-Hour US Stock Market
In a move that could reshape the landscape of US equity markets, Securities and Exchange Commission (SEC) Chair Paul S. Atkins has revealed that regulators are actively advancing preparations to extend trading hours. The initiative aims to provide investors with greater flexibility to respond to global events and to deepen market liquidity by broadening international participation.
Building the Backbone: Core System Upgrades Underway
Atkins emphasized that transitioning toward round-the-clock trading requires robust foundational support. Key upgrades to market infrastructure are already in progress:
- Settlement System Ready: The Depository Trust & Clearing Corporation (DTCC) has launched its "23x5" trade capture system, providing the technical backbone for clearance and settlement in extended hours.
- Risk Controls Established: The industry has developed overnight price bands and corresponding risk management requirements for trading centers to ensure stability during non-traditional sessions.
- Data Distribution Prep: The Securities Information Processor (SIP) is preparing to disseminate overnight price information, ensuring critical data availability.
Tech-Driven Efficiency: Digitalization as a Catalyst
Beyond traditional system upgrades, Atkins highlighted the role of innovation. He noted that digitizing assets can enable real-time inventory management, which promises to significantly boost operational efficiency, reduce settlement failures, and mitigate risks like naked short selling. This technological layer is seen as vital for supporting more complex and continuous trading models in the future.
While a definitive timeline has not been set, the SEC's forward-leaning stance and the concrete steps already taken by industry participants signal a clear path toward a potentially "never-closing" US stock market.