MasterCard has reported a net income of $458m, or $3.49 per diluted share, for the second quarter ended June 30, 2010, compared to $349m, or $2.67 per diluted share, for the same quarter last year.

Net revenues in the second quarter of 2010 increased to $1.36bn from $1.28bn in the same quarter of 2009.

Operating margin was 52.6% for the second quarter of 2010, up 9.1 percentage points over the year-ago period.

Worldwide purchase volume during the quarter was up 7.9% on a local currency basis versus the second quarter of 2009, to $493bn. The number of processed transactions increased 0.1% compared to the same period in 2009, to 5.6 billion. As of June 30, 2010, the company’s financial-institution customers had issued 1.6 billion MasterCard and Maestro-branded cards.

Net income in the first six months of 2010 was $913m, or $6.95 per diluted share, compared to $716m, or $5.47 per diluted share, in the same period of 2009. Net revenues in the first half of 2010 increased to $2.67bn from $2.43bn in the same quarter of 2009.

Ajay Banga, president and CEO of MasterCard, said: “We are pleased with our performance in the second quarter. Solid GDV growth, particularly in markets outside the US, continued momentum in worldwide cross-border volumes, and thoughtful expense management all contributed to good financial results this quarter.”