Nanex Research
Nanex ~ 17-Jan-2013 ~ SPY Instantly Tumbles 42 Cents
1. SPY showing trades color coded by exchange and NBBO (Shaded Red if Crossed - Best Bid > Best Ask).
2. SPY showing trades and quote spread for Nasdaq and PACF (Arca)
3. SPY showing trades and quote spread for Nasdaq and EDGE-X.
4. SPY showing trades and quote spread for Nasdaq and BATS.
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