- The GAAP combined ratio improved 7.3 points to 89.8% due to lower catastrophe losses (5.7 points) and higher underlying underwriting margins (2.1 points), partially offset by lower net favorable prior year reserve development (0.5 points).
- Net favorable prior year reserve development occurred in all segments. Catastrophe losses primarily resulted from tornado, wind and hail storms in several regions of the United States.
- The underlying GAAP combined ratio improved 2.1 points to 90.9%, primarily resulting from earned rate increases exceeding loss cost trends in each segment.
Net investment income of $2.186 billion after-tax ($2.716 billion pre-tax) decreased primarily due to lower reinvestment rates in the fixed income portfolio and lower real estate partnership returns in the non-fixed income portfolio.
Net realized investment gains of $106 million after-tax ($166 million pre-tax) increased primarily, due to an $87 million after-tax ($134 million pre-tax) gain in the second quarter related to a short position in U.S. Treasury futures contracts. The company closed this position by the end of the second quarter.
Net written premiums of $22.767 billion increased 1% reflecting the same factors discussed above for the fourth quarter.
Shareholders’ equity of $24.796 billion was generally consistent with the end of the third quarter 2013 but decreased 2% from the end of 2012. Included in shareholders’ equity were after-tax net unrealized investment gains of $1.322 billion, compared to $1.559 billion at the end of the third quarter 2013 and $3.103 billion at the end of the prior year. These lower net unrealized investment gains resulted from increased interest rates. The company repurchased 11.4 million shares during the fourth quarter and 28.4 million shares during the full year under its existing share repurchase authorization at a total cost of $1.0 billion and $2.4 billion, respectively, leaving $4.759 billion of capacity under that authorization for future share repurchases. Statutory surplus was $21.123 billion, and the ratio of debt-to-capital (excluding after-tax net unrealized investment gains) was 21.3%, well within its target range of 15% to 25%.