Citigroup’s fourth-quarter results just landed. The bank swung to a profit, boosted by stronger revenue in divisions including equity markets and investment banking. Some key numbers: Net income came in at $2.

Citigroup (C) reported fourth-quarter results that exceeded expectations, sending shares higher in pre-market trading Wednesday. Citi's net income for the fourth quarter was $2.86 billion, up from a loss of $1.

The bank unveiled stronger-than-expected results for the fourth quarter, in which revenue rose across all five of its main business lines.