ACIW ACI Worldwide Stock Outlook 2026: Payments Plumbing, Free Cash Flow, and the Growth Debate
An in-depth 2026 outlook on ACI Worldwide (ACIW), the mission-critical payments software vendor for banks, merchants, and billers. We cover the switching-cost moat, the license-to-SaaS transition and lumpy revenue, real-time payments tailwinds from FedNow and ISO 20022, the free cash flow versus growth debate, competition, and how to position it in a U.S. portfolio.