ACI Worldwide reported second quarter 2026 financial results, posting revenue of $430 million, a 7% increase from the prior year period. GAAP net income rose to $32 million compared to $12 million in Q2 2025, while adjusted EBITDA increased 12% to $91 million. Diluted EPS reached $0.31 on a GAAP basis and $0.54 on an adjusted basis, marking a 54% year-over-year increase. The company raised its full-year 2026 revenue guidance to a range of $1.895 billion to $1.925 billion and increased adjusted EBITDA guidance to $545 million–$560 million. Additionally, ACI Worldwide announced the successful launch of ACI Connetic across eight major U.S. payment networks and signed two new U.S. customers. The company repurchased 2.5 million shares for $107 million year-to-date. ACI Worldwide operates in the global payments technology industry, providing software solutions for banks, billers, and merchants.