5. Citigroup ( C) is a diversified, international financial services conglomerate. Net credit losses were $6.3 billion, sliding 25% from 2010 first quarter. Consumer net credit losses dropped 32% to $5.4 billion, driven by continued improvement in credit cards and residential real estate lending. As a sign of improving credit quality, Citigroup's total allowance for loan losses at the end of March was $37 billion, or 5.8% of total loans, down from $49 billion, or 6.8%, in the same period last year. The Tier-1 capital ratio at the end of the March quarter was 12.9% and capital adequacy ratio was 16.6%. Net income reported for first quarter 2011 was $3 billion, declining from $4.4 billion in the first quarter of 2010, but doubling sequentially. For 2011 first quarter, Citigroup reported revenue of $19.7 billion, narrowing 22% from 2010 first quarter. Net interest revenue was $12.2 billion, or down 16% from the prior year period, largely attributable to declining loan balances in local consumer lending. Citicorp's loans grew 10% compared to same quarter last year, with 6% growth from consumer loans and 16% in corporate loans. The stock is trading at 10.6 times its estimated 2010 earnings with a potential upside of 92% in the next one year.