They are not always "unexplainable" and even predictable to the pinpoint see the spike on Globex last Friday (remember I had posted the model BEFORE it occurs http://www.elitetrader.com/vb/showthread.php?s=&threadid=27783&perpage=6&pagenumber=1):
http://www.elitetrader.com/vb/showthread.php?s=&threadid=27783&perpage=6&pagenumber=9
As put in my guide : "during globex session future contract behaves as if it was the spot "
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