Fidelity Information Services, Inc. (NYSE:FIS) is a leading provider of core processing for financial institutions , card issuer and transaction processing services, mortgage loan processing and related information products . FIS has processing and technology relationships with 31 of the top 50 global banks, including nine of the top ten. Nearly 50 percent of all U.S. residential mortgages are processed using FIS software. Headquartered in Jacksonville, Florida, FIS maintains a strong global presence, serving over 7,800 financial institutions in more than 60 countries . FIS is part of the S&P 500. FIS has also been named the #1 banking technology provider and the #2 overall technology provider in the world by American Banker and Financial Insights (FinTech 100).