20090422 Market, AdvIssues, DecIssues, UncIssues, AdvVol, DeclVol, UnchVol, NewHis, NewLows NYSE, 1642, 1416, 88, 743193000, 1006357000, 14782000, 9, 2 AMEX, 277, 244, 55, 3959000, 5643000, 1606000, 2, 0 NASDAQ, 1430, 1301, 148, 1538722000, 1071849000, 22762000, 16, 10