WAYNE, Pa.--(BUSINESS WIRE)--Radian Group Inc. (NYSE: RDN) announced today that its wholly owned subsidiary, Radian Guaranty Inc., has agreed to principal terms on an excess of loss (XOL) reinsurance arrangement with a panel of highly rated third-party reinsurance providers. This arrangement is consistent with the company's use of risk distribution strategies to effectively manage capital and proactively mitigate risk. The agreement, which remains subject to final documentation, secures approxi. ...