Advance Computerized Execution System


Advance Computerized Execution System (ACES)

Refers to the Advance Computerized Execution System, run by Nasdaq. ACES automates trades between order entry and market maker firms that have established trading relationships with each other. Securities are designated as specified for automatic execution.

Advance Computerized Execution System

On NASDAQ, an electronic system allowing the automatic execution of orders between clients and market makers. Only clients and market makers that already have a relationship with each other use the ACES.