Zillow report on negative equity, regionally and by age

This is interesting from last week. 1) If the numbers are relatively accurate (Q2 relative to Q1) the downward trend in underwater homeowners is a good thing. 2) Empirical evidence of why we are experiencing a shortage in supply, and 3) interesting bell curve based on age of owner/borrower; I’m guessing those numbers are due to frequency of move, appetite for risk and the high income/lower savings rate often associated with the top of the curve.  "http://www.prnewswire.com/news-releases/negative-equity-falls-in-second-quarter-nearly-half-of-borrowers-under-40-remain-underwater-167166435.html?