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发表于 2010-3-19 08:50 PM
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thanks.
here is my understanding for your two questions: last month mrk is very bullish, so a lot of short call postion will got exercised inspite of the sell of today. this results a lot of short positions. so need buy back stock to get out of short position(question number 2). or one can sell puts against the short postion to keep a short bias(question number1). so, monday will see big rally to offset the rest of the shorts if not covered today. |
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