The share of distressed sales in May, that is foreclosed properties and short sales (when the property is sold for less than the value of the loan), fell to 31 percent of all sales from 37 percent in April. Investors, who purchase a large share of these distressed properties, also represented a smaller share in May. So what's going on?

We know there is still a huge supply of bank owned (REO) properties, and we also know that banks are pushing short sales on many more properties than ever before. But they are also pushing REO sales, thanks to new sales incentives from lenders and the GSE's (Government-Sponsored Enterprises).