Nanex ~ 07-Dec-2012 ~ Gaming Michigan Consumer Sentiment
On December 7, 2012, the market reacted 820 milliseconds before the earliest release
time of the
Michigan Consumer Sentiment number (9:54:58 to premium subscribers). At the
official release time of 9:54:58, there was another significant market reaction, leading
us to suspect that the earlier reaction was not due to a poorly synchronized clock,
but rather because someone received and acted on the number earlier.
1. SPY trades color coded by reporting exchange and NBBO (shaded gray).
The first drop at 09:54:57.180 comprised about 80,000 shares in 300 trades, while the
second drop at 09:54:58 comprised about 56,000 shares in 180 trades.
2. December 2012 ES (eMini) trades and quote spread.
It appears that market reaction began in the eMini - the Michigan Consumer Confidence
number usually impacts stocks (traded in NYC) before the eMini (traded in Chicago).
3. SPY trades color coded by reporting exchange and NBBO (shaded gray). Zoom-out of Chart 1.