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| Teaching Since: | May 2017 |
| Last Sign in: | 409 Weeks Ago, 2 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
3.   Let the continuously compounded 6-month USD interest rate be 3% p.a., let the analogous JPY inter- est rate be 1% p.a., let the exchange rate be ¥98 >$, and assume that the volatility of the continuously compounded annualized rate of appreciation of the yen relative to the dollar is 13%. Use the Garman- Kolhagen option pricing model to determine the yen price of a 6-month European dollar call option with a strike price of ¥100 >$. How does your an- swer change if the volatility were 16% p.a.?
4.   With the same variables as in Problem 3, use put–call parity to determine the yen price of the
corresponding dollar put option with the same ma- turity and same strike price.
5.   Suppose a trader sells a call option on £500,000 with a delta of 0.35 and buys another call option on
£1,000,000 with different parameters whose delta is
0.55. What is his net exposure to small movements in the exchange rate? How could he cover this position?
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