The Depository Trust and Clearing Corporation’s (DTCC) subsidiary, the National Securities Clearing Corporation (NSCC) has gone live with its extended 24/5 clearing hours model.
The move supports overnight trading activity for US equities and will span a clearing schedule running from 8pm ET on Sunday to 8pm ET on Friday.
In addition, the NSCC’s central counterparty guarantee will be applied immediately to transactions executed across extended trading hours and multiple time zones.
The move also comes following the DTCC’s recent industry-wide testing phase for 24/5 trading, which opened in January 2026, which included extensive testing, operational planning and client engagement, and required all UTC real-time message consumers to test the changes.
Brian Steele, managing director and president of clearing and securities services at DTCC, said: “By increasing clearing hours to operate on a near-continuous basis, we are enhancing access to US markets for investors around the world, while maintaining the robust risk management and resiliency capabilities that are critical to market stability.
“DTCC has collaborated closely with our clients and industry stakeholders to prepare for this moment. With 24/5 trading now in place, we are enabling market participants to operate confidently in a more accessible, globally connected trading environment.”
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Preparations for this shift have long been underway, and in September 2024, the NSCC extended its clearing operating window to open approximately two and half hours earlier than before.
Various exchanges and trading venues are also expected to make the transition to 24/5 or extended trading models later on this year.
For example, in June Cboe received SEC approval to launch 23/5 US equities trading on its EDGX exchange, while elsewhere, bids for extensions from securities information processors (SIPs) are being made to allow firms such as 24X to launch overnight trading sooner than planned.
Moreover, in October 2024, the New York Stock Exchange (NYSE) proposed plans to expand weekday trading to 22 hours a day, while Nasdaq announced intentions to move to a 24/5 model in early 2025.
“The DTCC’s move will add another layer of resilience by removing counterparty risk from overnight trading and encouraging broader adoption among a more diverse set of market participants,” said Jason Wallach, chief executive of Bruce Markets.
“It confirms that 24/5 trading is the new standard and marks a major step forward for the industry. Today’s announcement will fundamentally strengthen our financial system and affirms what we have long believed: the best markets remove friction while inviting broad and responsible participation.”