IRVINE, Calif., March 19, 2013 /PRNewswire/ -- CoreLogic ® (NYSE: CLGX), a leading provider of information, analytics and business services, today released new analysis showing approximately 200,000 more residential properties returned to a state of positive equity during the fourth quarter of 2012. This brings the total number of properties that moved from negative to positive equity in 2012 to 1.7 million and the number of mortgaged residential properties with equity to 38.1 million. The analysis also shows that 10.4 million, or 21.5 percent of all residential properties with a mortgage, were still in negative equity at the end of the fourth quarter of 2012. This figure is down from 10.6 million* properties, or 22 percent, at the end of the third quarter of 2012. To view the multimedia assets associated with this release, please click: http://www.multivu.com/mnr/59591-corelogic-reports-positive-equity-fourth-quarter-of-2012 (Logo: http://photos.prnewswire.com/prnh/20130319/MM78375LOGO) Negative equity, often referred to as "underwater" or "upside down," means that borrowers owe more on their mortgages than their homes are worth. Negative equity can occur because of a decline in value, an increase in mortgage debt or a combination of both. The national aggregate value of negative equity decreased $42 billion to $628 billion at the end of the fourth quarter from $670 billion at the end of the third quarter in 2012. This decrease was driven in large part by an improvement in home prices. Of the 38.1 million residential properties with positive equity, 11.3 million have less than 20 percent equity. Borrowers with less than 20 percent equity, referred to as "under-equitied," may have a more difficult time obtaining new financing for their homes due to underwriting constraints. At the end of the fourth quarter, 2.3 million residential properties had less than 5 percent equity, referred to as near-negative equity. Properties that are near negative equity are at risk should home prices fall. Under-equitied mortgages accounted for 23.2 percent of all residential properties with a mortgage nationwide in the fourth quarter of 2012. The average amount of equity for all properties with a mortgage is 31 percent.