UnitedHealth posted a better-than-expected fourth-quarter profit, but a nagging rise in medical costs and care utilization surprised Wall Street.

Wells Fargo reported earnings per share of $1.43 for the fourth quarter, beating Wall Street’s consensus estimate of $1.35. A year earlier, the bank reported profit of 86 cents a share. Net interest income,

UnitedHealth Group has reported quarterly profits of $5.5 billion after tax in its first earnings release since the killing of UnitedHealthcare CEO Brian Thompson in New York City, which sparked a wider debate about the cost of health insurance and medication for the American public.