Nanex ~ 15-Nov-2013 ~ Pfizer Overdoses on HFT
On November 15, 2013, beginning at 15:45:09, the stock of Pfizer, Inc (symbol: PFE,
market capitalization: $213 Billion) suddenly swooned 1.1% on thousands of trades in
one second. It recovered most of the drop seconds later (and went on to set new highs
before the close of the day).
1. PFE - Trades color coded by reporting exchange.
2. PFE - National Best Bid/Offer (NBBO). Gray for normal, yellow for locked
(bid=ask), red for crossed (bid > ask).
3. PFE - Best Bids and Asks color coded by reporting exchange.
4. PFE - All Bids and Asks color coded by reporting exchange.