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Re:Trading Halted in Nasdaq-Listed Securities Due to Technic... by mcphilip on Thursday August 22, 2013 @04:14PM (#6259761)
@nanexllc on twitter is probably worth following for analysis of what happened today. So far I've only seen one chart from Nanex, but it appears to be showing a breakdown of the NBBO in AAPL:

http://www.nanex.net/aqck2/5094.html

Re:Trading Halted in Nasdaq-Listed Securities Due to Technic... by minimax on Thursday August 22, 2013 @05:04PM (#6260071)
Attempting to decipher those nanex charts without a detailed explanation of what they purport to show is a waste of time. I'm guessing here he's trying to show a stale quote (in red) at one of the exchanges after trading resumed in AAPL but who really knows.