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For each of the following positions IV-VI below, a) determine whether Bank A has vega 0, vega 0, vega = 0, or vega is indeterminate
For each of the following positions IV-VI below, a) determine whether Bank A has vega 0, vega 0, vega = 0, or vega is indeterminate (?). b) Similarly, determine Bank As delta with respect to the stock price - is delta 0,0,=0, or ?. All options are European with maturity T on a stock that pays no dividends, and 0 < K1 < K2. Justify your answers.
IV. long a K1, (K1 + K2)/2, K2 call butterfly
V. long a K1 put knocking out if ST< K2
VI. long a K2 put knocking out if ST > K1
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