Q1
Consider the option on currency HKD against the USD:
• Current spot rate is HKD7.50 for 1 USD
• Risk-free HKD rate of interest is 5% p.a.
• Risk-free USD rate of interest is 2% p.a.
• Volatility (σ) of the currency returns is 20% p.a.
• Maturity of the option is 3 months.
• Strike rate of the option is HKD8.00 for 1 USD
• The currency options are European in nature Answer the following questions.
(i) How much does it cost to hold (i.e., buy) a call-HKD option? Use the Garman Kohlhagen model.
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