Sleepless on Wall Street: All-night stock exchanges coming soon

US equity exchanges will begin extended trading hours with an overnight session from 9 p.m. to 4 a.m. starting December 6. The changes aim to cater to growing foreign investor interest and compete with crypto markets. However, concerns about market liquidity and increased risks during these hours are prevalent among institutional investors. Pre-existing trading volumes suggest that institutional participation during night hours may be limited.