Fact-Checking the 24-Hour Market: Is Wall Street Truly Ready for 24/7 Operations?
Equities are not the first asset class to wrestle with round-the-clock market demands. Foreign exchange trading has run on a continuous global loop for decades, operating five days a week as money centers pass trading books from London to New York, Tokyo, and Sydney. The mechanics of foreign exchange, however, rely on a decentralized interbank network backed by central bank currency facilities, a luxury single-company equities do not share.
Foreign governments are testing how far domestic markets can stretch continuous trading without destabilizing local institutions. In July 2026, South Korea officially launched 24-hour FX trading for the onshore won, extending operations past its previous 2:00 AM cut-off. Seoul implemented the expansion specifically to dismantle foreign exchange restrictions and secure an upgrade to developed market status in global index classifications.
The Korean foreign exchange rollout demonstrated that extending market hours requires heavy intervention from designated liquidity providers. The Bank of Korea and domestic clearinghouses had to construct round-the-clock oversight desks to step in whenever private quotes vanished. Applying this framework to thousands of distinct corporate stocks across American and European exchanges presents a far harder challenge. A central bank will back its national currency to ensure sovereign stability, but no regulatory body will supply emergency liquidity to rescue the overnight order book of a mid-cap software firm.
