Radian Group Inc.’s RDN second-quarter 2017 operating income of 48 cents per share beat the Zacks Consensus Estimate by 20%. However, the bottom line improved 26.3% year over year. Radian Group Inc. Price, Consensus and EPS Surprise Radian Group Inc. Price, Consensus and EPS Surprise | Radian Group Inc. QuoteBehind the HeadlinesOperating revenues grew 3% year over year to $260 million, courtesy of higher net premiums. However, lower investment income and service revenues suffered a decline.New mortgage insurance written (NIW) grew 11% year over year to $14.3 billion in the quarter. As of Jun 30, 2017, total primary mortgage insurance in force was $191.6 billion, up 8% from $177.7 million as of Jun 30, 2016.Persistency, which is the percentage of mortgage insurance in force that remains in the company’s books after a 12-month period, was 78.5% as of Jun 30, 2017. The company reported persistency of 79.9% as of Jun 30, 2016. Primary delinquent loans decreased 20% year over year in the quarter.Total expenses surged 92% year over year to $338 million, primarily due to impairment of goodwill and amortization of intangible assets in the quarter.Segment UpdateNet premiums earned by Mortgage Insurance segment were $229 million, up 3% year over year. Claims paid were $91.3 million in the quarter, up 1% year over year. Loss ratio improved 1420 basis points to 7.7%.The Mortgage and Real Estate Services segment reported 5% year-over-year decline in total revenue to $40 million. Pre-tax operating income of $1.2 million was lower than an operating income of $1.5 million in the year-ago quarter.Financial UpdateRadian Group ended the quarter with a cash balance of $56.9 million, up 3% year over year.Long-term debt was $989 million, down 23% year over year.Book value per share, a measure of net worth, grew 3% year over year to $13.54 as of Jun 30, 2017.Business UpdateThe company expects to restructure its business. Restructuring charges are likely to be within $25 million on a pre-tax basis.Zacks RankRadian Group currently carries a Zacks Rank #3 (Hold). You can see the complete list of today’s Zacks #1 Rank stocks here.Performance of Other InsurersAmong other players from the insurance industry that have reported their second-quarter earnings so far, the bottom line of Brown & Brown, Inc. BRO and Fidelity National Financial, Inc. FNF have topped their respective Zacks Consensus Estimates, while The Progressive Corporation PGR has missed the same.More Stock News: Tech Opportunity Worth $386 Billion in 2017From driverless cars to artificial intelligence, we've seen an unsurpassed growth of high-tech products in recent months. Yesterday's science-fiction is becoming today's reality. Despite all the innovation, there is a single component no tech company can survive without. Demand for this critical device will reach $387 billion this year alone, and it's likely to grow even faster in the future. Zacks has released a brand-new Special Report to help you take advantage of this exciting investment opportunity. Most importantly, it reveals 4 stocks with massive profit potential. See these stocks now>> Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Radian Group Inc. (RDN): Free Stock Analysis Report Brown & Brown, Inc. (BRO): Free Stock Analysis Report Progressive Corporation (The) (PGR): Free Stock Analysis Report Fidelity National Financial, Inc. (FNF): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research