Weekly options

Apple: Five fat fingers before noon Friday. What gives?

March 8, 2013: 11:36 AM ET

With weekly option expirations, trading in Apple tends to get weird at the end of the week

Screen Shot 2013-03-08 at 12.05.43 PM

FORTUNE -- What was the significance of those long red vertical lines in Apple's (AAPL) 60-second chart Friday a.m.? Were they computer glitches? Human error (so-called fat finger trades)? Something more sinister? Your guess is as good as mine.

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