According to the National Association of Home Builders Improving Markets Index, 28 new entrants made the list in June and 31 states now have at least one metropolitan area represented. Despite the gains in regional diversity, however, the total number of improved housing markets fell to 80 from 100 in May. The index lists housing markets that have shown improvement for at least six straight months in housing permits, employment, and home prices. David Crowe, NAHB’s chief economist, said the shifting of markets on and off the list underscores the fragility that remains in the market. But, according to Crowe, the fact that multiple new areas are added to the list each month is encouraging. In June, 52 metros held their spot on the list and 48 dropped off. More here.