I was running my little script to get the data from http://biz.yahoo.com/z/extreme.html
Here is the result:
20080103,0.67
20080107,0.67
20080108,0.47
20080109,0.33
20080110,0.63
20080111,0.25
20080114,0.33
20080115,0.45
20080116,0.50
20080117,0.43
20080118,0.44
20080121,0.67
20080122,0.44
20080123,0.53
20080124,0.52
20080125,0.30
20080128,0.63
20080129,0.48
20080130,0.45
20080131,0.56
20080201,0.57
20080204,0.50
20080205,0.63
20080206,0.54
20080207,0.60
20080208,0.45
20080211,0.53
20080212,0.58
20080213,0.52
20080214,0.61
20080215,0.37
20080219,0.51
20080220,0.51
20080221,0.53
20080222,0.48
20080225,0.64
20080226,0.50
20080227,0.50
20080228,0.50
20080229,0.39
20080303,0.44
20080304,0.49
20080305,0.47
20080306,0.49
20080307,0.47
20080310,0.31
20080311,0.46
20080312,0.37
20080313,0.30
20080314,0.37
20080317,0.35
20080318,0.69
20080319,0.61
20080320,0.54
20080324,0.45
20080325,0.32
20080326,0.33
20080327,0.37
20080328,0.31
20080331,0.38
20080401,0.22
20080402,0.39
20080403,0.36
20080404,0.89
20080407,0.60
20080408,0.67
20080409,0.48
20080410,0.54
20080411,0.50
20080414,0.30
20080415,0.48
20080416,0.53
20080417,0.50
20080418,0.59
20080421,0.57
20080422,0.55
20080423,0.53
20080424,0.53
20080425,0.35
20080428,0.48
20080429,0.55
20080430,0.50
20080501,0.57
20080502,0.52
20080505,0.49
20080506,0.49
20080507,0.43
20080508,0.45
20080509,0.38
20080512,0.40
20080513,0.43
20080514,0.42
20080515,0.45
20080516,0.60
20080519,0.61
20080520,0.68
20080521,0.75
20080522,0.63
e.g. on 05/22/2008, with 30 companies releases the earnings, 19 have the upside surprises.
maybe this could service as a leading indicator. is that possible the mkt will move up next week?