Exhibit 99.1 News Release FIS Reports First Quarter 2026 Results and Reiterates Full-Year Outlook • Reiterates 2026 outlook for Pro Forma revenue growth of 5.1-5.7% and Pro Forma Adjusted EBITDA growth of 7.2-8.4% JACKSONVILLE, Fla., May 8, 2026 - FIS (NYSE: FIS), a global leader in financial technology, today reported its first quarter 2026 results. 2 ® "We delivered a strong start to 2026, with disciplined execution driving margin expansion and robust cash flow generation," said FIS CEO and President Step ...