20080424 Market, AdvIssues, DecIssues, UncIssues, AdvVol, DeclVol, UnchVol, NewHis, NewLows NYSE, 1997, 1168, 79, 947098000, 492030000, 9960000, 55, 51 AMEX, 618, 552, 97, 13223000, 13771000, 2540000, 15, 34 NASDAQ, 1853, 1028, 149, 1631172000, 644656000, 15480000, 21, 82