May 30, 2025 (NO COMMENTS)

Risk managers and clearing brokers fear the move to 24-hour stock trading will give them sleepless nights, literally, with questions swirling around how settlement fails, margin calls and possibly even counterparty defaults will be handled during overnight hours.

“There is a question of what will [the risk management] process look like, for example, when the banks aren’t open to meet a margin call,” says Jon Fowler, chief technology officer at RQD Clearing.

Clearing brokers typically have about an