20090415 Market, AdvIssues, DecIssues, UncIssues, AdvVol, DeclVol, UnchVol, NewHis, NewLows NYSE, 2168, 896, 89, 1056821000, 402592000, 15096000, 4, 3 AMEX, 307, 215, 66, 7689000, 3733000, 944000, 2, 4 NASDAQ, 1726, 1013, 137, 878087000, 1119980000, 27188000, 8, 7