20080521 Market, AdvIssues, DecIssues, UncIssues, AdvVol, DeclVol, UnchVol, NewHis, NewLows NYSE, 937, 2218, 89, 242298000, 1137378000, 7205000, 150, 52 AMEX, 471, 759, 88, 18293000, 18429000, 781000, 59, 24 NASDAQ, 901, 1988, 147, 350079000, 1790936000, 23829000, 46, 88