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system
how can this stock have an intra-day range of more than 90% on 24aug2015?
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edit: it was system disruption or malfunctions august 24, 2015 2:12 pm edt   pursuant to rule 11890(b) nasdaq, on its own motion, in conjunction   with bats, and finra has determined to cancel all trades in security   blackrock capital investment. (nasdaq: bkcc) at or below $5.86 that   were executed in nasdaq between 09:38:00 and 09:46:00 et. this   decision cannot be appealed. nasdaq will be canceling trades on the   participants behalf. a person on reddit claimed that he was the buyer. he used robinhood, a $0 commission broker and start-up.  the canceled trades are reflected on cta/utp and the current charts will differ from the one posted below.  it is an undesired effect of the 5-minute trading halt.  it is not "within 1 hour of opening, bkcc traded between $0.97 and $9.5".  those trades only occurred for a few seconds on two occasions.  one possible reason is that when the trading halt ended, there was a lot of market order to sell accumulated.  refer to the following chart, where each candle represents a 10 second period. as you can see, the low prices did not "sustain" for hours.   and the published halts.
assistant