Meanwhile- Bottom Line - Nearly 29% of mortgaged homes underwater, report finds A whopping 28.6 percent of homeowners with mortgages owe more on their loans than their homes could sell for, according to quarterly data released Tuesday by Zillow, a real estate website. That's up from 26.8 percent in the second quarter. Home values declined only 0.2 percent from the second quarter but were down 4.4 percent year over year. The rising percentage of homes with "negative equity" or "underwater" status is due largely to how long the foreclosure sale process takes rather than home value fluctuations, said Zillow chief economist Stan Humphries. Prior to the "robo-signing" scandal around foreclosures that came to light in 2010, the negative equity rate hovered in the 21 to 23 percent range, but has been in the 26 to 28 range since due to added delays in foreclosure sales. While the rate of foreclosures is dropping, the time required for foreclosures to sell has lengthened.