Existing-home sales sprang ahead in May to their highest pace in almost a decade, while the uptick in demand this spring amidst lagging supply levels pushed the median sales price to an all-time high, according to the National Association of Realtors®. All major regions except for the Midwest saw strong sales increases last month.

Total existing-home sales1, which are completed transactions that include single-family homes, townhomes, condominiums and co-ops, grew 1.8 percent to a seasonally adjusted annual rate of 5.53 million in May from a downwardly revised 5.43 million in April. With last month's gain, sales are now up 4.5 percent from May 2015 (5.29 million) and are at their highest annual pace since February 2007 (5.79 million).

Lawrence Yun, NAR chief economist, says existing sales continue to hum along, rising in May for the third consecutive month. "This spring's sustained period of ultra-low mortgage rates has certainly been a worthy incentive to buy a home, but the primary driver in the increase in sales is more homeowners realizing the equity they've accumulated in recent years and finally deciding to trade-up or downsize," he said. "With first-time buyers still struggling to enter the market, repeat buyers using the proceeds from the sale of their previous home as their down payment are making up the bulk of home purchases right now."