Hi @David Harper CFA FRM
i am confused and seek some guidance . Acc to me (as the qs above )says expanding the green zone from 4 to 5 would mean increasing the Significance level and decreasing the CL, thereby increasing the prob of T1 error.is it not? why do you call it trimming. so we know...
A position has postive theta positive Vega and negative gamma how to hedge it
Solution is buy short term options and sell long term options .
Can someone please simply?
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