Nanex Research
Nanex ~ 13-May-2013 ~ STN Stub Quotes
On May 13, 2013, the quote spread in the stock of Stantec Inc. (Symbol STN, Market Cap $1.95 billion) over a 5 second period, widened from $0.30 to over $600. The best bid
price reached a low of $4.25 and the best ask price reached $616.63. There doesn't seem
to have been any news or justification for this meltdown. Over 1,500 quotes from 7 exchanges
actively updated during this period.
1a. STN - Bids and asks color coded by reporting exchange along with NBBO in dark gray.
1b. STN - Bids and asks color coded by reporting exchange along with NBBO in dark gray. Zooming in on prices from $40 to 0.
2a. STN - Bids and asks color coded by reporting exchange along with NBBO in
dark gray. Zoom of Chart 1a.
2b. STN - Bids and asks color coded by reporting exchange along with NBBO in
dark gray. Zoom of Chart 1b.
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