Shares of Radian Group Inc. (RDN)   have rallied 20.8% year to date, outperforming the industry’s growth of 12.7%, the Finance sector’s rise of 10.4% and the Zacks S&P 500 composite’s increase of 16.8%. With a market capitalization of $5.2 billion, the average volume of shares traded in the last three months was 0.9 million.Improving mortgage insurance portfolio, declining claims, a well-performing homegenius segment, a solid capital position and effective capital deployment drive this Zacks Rank #2 (Buy) m ...