Backup Systems
The regulation also requires exchanges to test that backup systems are robust enough to recover from natural disasters or computer malfunctions.
Regulators are likely to consider whether Wednesday’s halt should prompt any changes to that rule, the people said.
White called Farley and Intercontinental Exchange Inc. Chief Executive Officer Jeff Sprecher Wednesday to discuss the outage, according to the people. At the time, exchange officials and regulators were focused on determining how to restore trading in time for the surge of orders that happens during the final minutes before markets close.