Citigroup Inc (C)- 4.51 (Price), -0.01 (Change), -0.22% (% Change)- Citigroup Inc. (Citigroup) is a global diversified financial services holding company. The Company provides consumers, corporations, governments and institutions with a range of financial products and services. As of December 31, 2009, Citigroup had approximately 200 million customer accounts and did business in more than 140 [...]