April 15 (Reuters) - Citigroup Inc reported a 2 percent rise in quarterly earnings on Monday, as investment banking revenue surged and net interest margin expanded.
Net income rose to $4.71 billion, or $1.87 per share, for the first quarter ended March 31 from $4.62 billion, or $1.68 per share, a year earlier.
Revenue fell 2 percent to $18.58 billion.
Analysts were looking for a profit of $1.80 per share on revenue of $18.63 billion, according to IBES data from Refinitiv. It was not immediately clear if the profit number was comparable.
Reporting by Imani Moise in New York and Sidharth Cavale in Bengaluru; Editing by Anil D'Silva