Citigroup is currently trading at the lowest valuation among peers, and i feels that this offers a promising entry point for investors looking to go long on the stock. Citigroup Inc. (C), which is ranked among the Big Four US banks, controls assets worth more than $1.88 trillion in total. The bank divides its business in two broad segments: Citicorp and Citi Holdings, which respectively contribute 94% and 6% of the bank’s total revenues. Its operations can also be classified geographically by the four major regions it operates in: North America, Latin America, Asia, and the EMEA (Europe, Middle East and Africa). Citigroup’s consolidated net revenues were up 10.5% year-over-year (YoY) to $76.37 billion in its 2013 fiscal year (FY13; ended December 31, 2013), while basic earnings per share (EPS) had surged 78.3% YoY. Citicorp can be divided into two main divisions: Global Consumer Banking, which includes its Cards and Retail Banking businesses; and the Institutional Clients Group, which includes its Securities and Banking, and Transaction Services businesses.