20090520 Market, AdvIssues, DecIssues, UncIssues, AdvVol, DeclVol, UnchVol, NewHis, NewLows NYSE, 1602, 1479, 81, 701946000, 837650000, 19728000, 14, 7 AMEX, 317, 235, 41, 11246000, 5135000, 1243000, 6, 0 NASDAQ, 1274, 1459, 147, 834706000, 1417102000, 28697000, 35, 5