Freezes

Short freezes in the second-by-second files prior to June 2012 occur, on average, a few times a day. After that time, they occur only once or twice a month. Even rarer – less than 20 in the entire history – are periods in excess of 60 seconds where the basket calculator froze or data were unavailable. These exceptional cases are sorted by date and are listed in the table below.

Static Values >= 1 Minute

  Indexes Impacted
Begin Date Begin Time End Date End Time Count Capitalization Sector Value/Growth
5/26/2011 09:30:00 5/26/2011 11:41:29 7,890 x    
8/5/2011 10:06:59 8/5/2011 10:11:46 288 x    
8/5/2011 10:11:53 8/5/2011 16:00:00 20,888 x    
8/9/2011 14:21:59 8/9/2011 14:23:15 77 x    
8/9/2011 14:24:01 8/9/2011 14:29:53 353 x    
8/9/2011 14:30:36 8/9/2011 14:39:59 564 x    
8/10/2011 15:47:53 8/10/2011 15:55:32 460 x    
8/10/2011 15:55:33 8/10/2011 15:57:08 96 x    
8/10/2011 15:57:54 8/10/2011 15:59:04 71 x    
8/12/2011 09:30:00 8/12/2011 10:00:00 1,801 x    
8/18/2011 10:03:44 8/18/2011 10:05:00 77 x    
9/1/2011 10:04:14 9/1/2011 10:07:05 172 x    
9/1/2011 10:07:06 9/1/2011 10:11:49 284 x    
9/27/2011 10:00:40 9/27/2011 10:02:46 127 x    
10/18/2011 15:58:59 10/18/2011 16:00:00 62 x    
10/19/2011 10:45:02 10/19/2011 11:00:00 899 x    
2/13/2012 09:30:00 2/13/2012 16:00:00 23,401 x    
8/15/2013 14:30:30 8/15/2013 14:31:36 67 x x x