Could you please clarify what FIS stands for in the context of this question? Assuming it refers to a financial institution or service, the ranking of FIS in the world would depend on various factors such as its
market capitalization, revenue, assets under management, or other relevant metrics. Without specific information on which FIS you're referring to and the criteria used for ranking, it's difficult to provide an accurate answer. However, if you're looking for a general understanding of the ranking of financial institutions globally, you might consider consulting financial publications or industry reports that regularly rank and analyze the performance of various financial institutions.