Assume that at t = 0 a stock has price S = $500 and that a call that matures at T with a strike price of X = $500 has premium C = $10.
Assume at the option’s maturity, t = T, that ST = $550.
Assume that at t = 0 that investor #1 buys 100 shares of stock and sells them at t = T.
Assume that at t = 0 investor #2 buys one call option on the same stock & exercises it at t = T.
What is the ROI (return on investment) for investor #2?
None of these numbers are correct |
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300% |
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200% |
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100% |
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400% |
Answer: 400%
At t = 0, |
Stock Price (S) = $ 500 |
Strike Price of Call maturing at time T = $ 500 |
Premium of Call Option, C = $ 10 |
At t = T, |
Stock Price (ST) = $ 550 |
As Stock Price at Expiry is higherthan Strike Price, Call Option can be excercised |
Payoff of Call Option at the time of Expiry = ST - Strike Price |
Payoff of Call Option at the time of Expiry = $ 550 - $ 500 = $ 50 per Option |
Return of Investor #2 = Payoff of Call Option - Option Premium paid |
= $ 50 - $ 10 = $ 40 |
Retun on Investment = ($ 40/ $10) x 100 |
Retun on Investment = 400% |
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