Nanex ~ 30-Nov-2012 ~ One Year Ago
On November 30, 2011 (one year ago from when this was published), quotes from Nasdaq
suddenly stopped for about 20 seconds after another explosive close where multiple seconds
worth of trading were jammed
into the last second. However, trading as
Nasdaq wasn't affected. This
is yet another example of where direct feeds illegally give data to one group of subscribers
ahead of the consolidated feed. Clearly, the
NBBO was ignored.
For the last 3 years (2009, 2010, and 2011), there has been unusually high trading activity
in the final minutes of trading activity on the last trading day in November.
See charts of the November 30, 2012
We show one example stock in detail below (SPY).
Click Start/Stop to run a slide show of all 39 images. Or click Prev/Next to step through them one
at a time.
Note, green filled circles are FORM-T trades (after hours). Blue filled is the market
closing print. The outline color of the circle indicates the exchange.