20080422 Market, AdvIssues, DecIssues, UncIssues, AdvVol, DeclVol, UnchVol, NewHis, NewLows NYSE, 894, 2269, 86, 338423000, 958642000, 28641000, 113, 66 AMEX, 451, 774, 91, 9600000, 16198000, 1620000, 39, 28 NASDAQ, 726, 2199, 134, 423327000, 1442779000, 46078000, 24, 117