Existing Home Sales Plummet By Jeremy Jones, CFA - August 24, 2010 Existing home sales plummeted 27% in July to a new 15-year low. Existing home sales have now entered double-dip territory. At the current rate of sales, there is a surplus of more than 12 months of existing home supply—a 28 year high. Share this:EmailTwitterFacebook RELATED ARTICLESMORE FROM AUTHOR Is the Palisades Fire a Reignition Blaze from New Year’s Eve? American Homebuilder Sentiment Reaches New High After Election Rate Cut Was Too Late in the Year to Lure Home Buyers