Adjusted diluted earnings per share increased 54% to $0.54, while adjusted EBITDA rose 12% to $91 million. Segment adjusted EBITDA increased 12% to $94 million, producing a 48% net adjusted EBITDA margin. The company expects upper-single-digit revenue growth in Biller for the full year and expects net revenue growth to more closely track gross revenue growth during the remainder of 2026. The company increased expected adjusted EBITDA to $545 million to $560 million, from $540 million to $555 million previously. About ACI Worldwide (NASDAQ:ACIW)ACI Worldwide (NASDAQ:ACIW) is a global software company that provides electronic payment and banking solutions to financial institutions, merchants and billers.