Econoday calls this an acceleration, is that what's happening?

Highlights

The resale market, after a period of steady sales, is now accelerating to new expansion highs. Existing home sales rose a very sharp 4.4 percent to a higher-than-expected annualized rate of 5.710 million. This is the best rate since February 2007. Both components show strength with single-family sales up 4.3 percent to a 5.080 million rate and condo sales up 5.0 percent to a 630,000 rate. And year-on-year sales are moving higher, up 5.9 percent divided between 6.1 percent for single-family homes and 5.0 percent for condos.

The month's gains aren't tied to concessions as the median price rose 3.6 percent to $236,400 for a year-on-year rate of 6.8 percent that matches well with the sales trend. Supply, up 5.8 percent in the month to 1.830 million, moved into the market but was absorbed by rising sales which kept supply relative to sales unchanged at 3.8 months. The lack of supply and heated sales pace are reflected in days on the market which are down to 34 from 45 in the prior month and 47 days a year ago.