In January 2020, the term-structure of spot rates is as
follows
(with continuous compounding):
Maturity (years) Zero-rate(%)
1 2.0
2 3.0
3 4.0
(a) A 3-year zero-coupon bond has the face value of $1,000.
Consider a 1-year forward
contract on the zero coupon bond. What should be the forward
price?
(b)Suppose that an investor takes a long position in the above
forward contract. One year
later, in January 2021, the term-structure turns out to be as
follows:
Maturity (years) Zero-rate(%)
1 3.0
2 4.0
3 5.0
What is the value (in January 2021) of the long position in the forward contract?
Bond price = Face value * e-(3 year zero rate * Time to Maturity)
Bond price = $1000 * e-(4% * 3)
Bond price = $886.92
Future price = Bond price * e(1 year zero rate * Time to Maturity)
Future price = $886.92 * e(2% * 1)
Future price = $904.84
2)
Zero coupon Bond price after 1 year after the change in term structure
Bond price = Face value * e-(2 year zero rate * Time to Maturity)
Bond price = $1000 * e-(4% * 2)
Bond price after 1 year = $923.12
Value of Long position in Future contract = Future price - Bond price after 1 year
Value of Long position in Future contract = $923.12 - $904.84
Value of Long position in Future contract = $18.28
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