20080423 Market, AdvIssues, DecIssues, UncIssues, AdvVol, DeclVol, UnchVol, NewHis, NewLows NYSE, 1648, 1481, 112, 625013000, 692022000, 27663000, 56, 68 AMEX, 559, 606, 103, 11941000, 11439000, 1790000, 21, 27 NASDAQ, 1567, 1325, 165, 1537915000, 522234000, 44358000, 13, 106