Trigon Healthcare

(TGH) - Get Report

beat analysts' expectations for the third quarter, citing continued strong enrollment and stable medical costs.

Excluding realized gains and losses, the health care company, which is based in Richmond, Va., reported income for the latest third quarter of 92 cents a diluted share. The company earned 54 cents a share in the year-ago period, before items. Analysts expected the company to earn 89 cents a share for the latest quarter, according to

First Call/Thomson Financial

.

Total revenue rose 12.9% to $666.5 million from $590.4 million in the previous year.

Shares of Trigon were recently trading up $3.38, or 5%, to $71.31 on the

New York Stock Exchange

.