Housing markets show continued signs of strengthening according to reports released on Wednesday. The National Association of Realtors® reported that sales of pre-owned homes rose to 5.49 million in June as compared to May’s revised reading of 5.32 million pre-owned homes sold and expected sales estimated at 5.42 million sales. Expectations were based on May’s original reading of 5.35 million sales. June’s reading was the highest since February of 2007. Readings for existing home sales are calculated on a seasonally adjusted annual basis.