Suppose shares of stock in Smolira Corp. are selling for $110. A call option on Smolira with
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Suppose shares of stock in Smolira Corp. are selling for $110. A call option on Smolira with one year to maturity and a $110 strike price sells for $15. A put with the same terms sells for $5. What’s the risk-free rate?
To answer, we need to use put-call parity to determine the price of a risk-free, zero coupon bond:
Price of underlying stock + Price of put − Price of call = Present value of exercise price Plugging in the numbers, we get:
$110 + 5 − 15 = $100 Because the present value of the $110 strike price is $100, the implied risk-free rate is 10 percent.
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Related Book For
Corporate Finance
ISBN: 9781265533199
13th International Edition
Authors: Stephen Ross, Randolph Westerfield, Jeffrey Jaffe
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