Valued at a market cap of $187.1 billion, Citigroup Inc. (C) operates as one of the largest financial institutions in the world. The New York-based financial giant focuses on safeguarding assets, lending money, making payments, and accessing the capital markets on behalf of its clients. Its customers include corporations, governments, institutions, and individuals. The financial sector giant is expected to report its third-quarter results before the market opens on Tuesday, Oct. 14. Ahead of the event, an ...