ACIW ▲ +0.1% - ACI Worldwide, Inc. $ACIW - ACI Worldwide Expands ACI Connetic with Advanced Financial Messaging Technology to Power Intelligent, Future-Ready Payments ACI Worldwide (ACIW) rose 0.1% following an announcement that the company expanded its ACI Connetic platform with advanced financial messaging technology designed to enhance payments intelligence and future readiness. The modest gain suggests investors welcomed the product expansion, though the market's muted response indicates it was viewed as an incremental development rather than a major catalyst. 17-SEP-2026 08:13 AM ET