i'm sarah izen. >> different story for boeing. there was concern about the cash flow orders and cost despite beating earning estimates. they cited costs for the 787 dreamliner plan. shares slid by 1% making it the worst performing stock on the blue chip dow index. >>> over all on wall street averages did move closer to record levels and another rally in technology k sent the nasdaq to a new closing. by the close a chopping trading session. dow closing at 18038 and the nasdaq notched a 21 point gain at 5035 and the s&p 500 gained 10 points. >>> and now to the economy and today's big numbers in the housing market that show spring has definitely sprung. sales of existing homes increased 6% in march. the highest level in 18 months as more homes came on the market. and while that sounds like a strong start to the buying season other data today shows that it is not all roses. diana olick explains. >>> only sales are finally surging but at a heavy price. the median sale price of a single family home in march jumped nearly 9%, according t