20090512 Market, AdvIssues, DecIssues, UncIssues, AdvVol, DeclVol, UnchVol, NewHis, NewLows NYSE, 1301, 1771, 93, 454013000, 1143426000, 8208000, 4, 13 AMEX, 290, 253, 50, 14356000, 7594000, 1262000, 6, 3 NASDAQ, 1000, 1787, 104, 652296000, 1820470000, 20823000, 20, 4