You are a trader on an options desk. Assume your horizon is one year to maturity....
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You are a trader on an options desk. Assume your horizon is one year to maturity. Assume you are trading three strikes: 95 (22 vol); 100 (21 vol) and 105 (20 vol). Interest rates and dividends are zero, S, = 100. a. [20 marks] Structure a portfolio that is vega and vanna neutral as well as long volga, say volga= = 10. Make any reasonable simplifying assumptions you feel are required. Give the numerical portfolio holdings (095, 0100, 0105) on the three strikes, where OK is the number of calls or puts with strike K held at time t. b. [5 marks] Explain intuitively the portfolio you found. What makes that portfolio "the right" portfolio? c. [15 marks] Provide one of more examples when this would be a useful portfolio to have. In particular, what is volga capturing? Why vega and vanna neutral? d. [5 marks] Can you add a further portfolio constraint on delta, for instance requiring that the delta be 0? e. [5 marks] What is your best approximation of the P&L tomorrow as a function of the moves in primary risk factors? You are a trader on an options desk. Assume your horizon is one year to maturity. Assume you are trading three strikes: 95 (22 vol); 100 (21 vol) and 105 (20 vol). Interest rates and dividends are zero, S, = 100. a. [20 marks] Structure a portfolio that is vega and vanna neutral as well as long volga, say volga= = 10. Make any reasonable simplifying assumptions you feel are required. Give the numerical portfolio holdings (095, 0100, 0105) on the three strikes, where OK is the number of calls or puts with strike K held at time t. b. [5 marks] Explain intuitively the portfolio you found. What makes that portfolio "the right" portfolio? c. [15 marks] Provide one of more examples when this would be a useful portfolio to have. In particular, what is volga capturing? Why vega and vanna neutral? d. [5 marks] Can you add a further portfolio constraint on delta, for instance requiring that the delta be 0? e. [5 marks] What is your best approximation of the P&L tomorrow as a function of the moves in primary risk factors?
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a To structure a portfolio that is vega and vanna neutral while being long volga we need to balance the vega and vanna exposures across the strikes wh... View the full answer
Related Book For
International Financial Management
ISBN: 978-0078034657
6th Edition
Authors: Cheol S. Eun, Bruce G.Resnick
Posted Date:
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