The 's revenue growth for the fourth quarter is expected to be 1.0 percent, the research company FactSet reports. That might not sound terrible, but if not for a weird quirk in one company's accounting, the expected revenue growth would be more than double that.

The culprit is Prudential. In the fourth quarter of 2012, the insurance giant reported revenue of $46.1 billion, which was almost five times what the insurance giant reported in the fourth quarter of 2011, and amounted to more than half of the company's total revenue for the year.