20090504 Market, AdvIssues, DecIssues, UncIssues, AdvVol, DeclVol, UnchVol, NewHis, NewLows NYSE, 2636, 472, 64, 1611340000, 81328000, 6968000, 19, 6 AMEX, 369, 178, 47, 12600000, 3609000, 719000, 9, 0 NASDAQ, 2149, 645, 105, 2006644000, 517383000, 6887000, 28, 7