RESULTS: Insurer UnitedHealth Group Inc. said Thursday it earned $1.43 billion, or $1.41 per share, in the three months that ended Dec. 31. That's up from $1.24 billion, or $1.20 per share, in the 2012 quarter. Total revenue rose 8 percent to $31.12 billion.
EXPECTATIONS: Analysts forecast, on average, earnings of $1.40 per share on $31.15 billion in revenue, according to FactSet.
THE DRIVERS: UnitedHealth's total enrollment grew 11 percent to more than 45 million people. Operating earnings from the insurer's Optum business segment also rose 43 percent to $655 million. Optum's work includes information technology services and pharmacy benefits management. It contracted last fall with the federal government to help clean up the problem-plagued debut of HealthCare.gov.