Radian Group Inc. (NYSE:RDN – News) today reported a net loss for the quarter ended December 31, 2010, of $1.1 billion, or $8.55 per diluted share. This compares to a net loss of $91.9 million, or $1.12 per diluted share, for the prior-year fourth quarter. The net loss for the full year 2010 was $1.8 [...]