In: Economics
a) The CALL option on Facebook with strike price $143 has a
premium of $5. It means the profit will be realized is the market
price goes above $148. If the market price is $50 then the profit
will be $2 and if it is $160 then the profit will be $12.
If the market price is $160 then the CALL option should be
exercised.
Profit = Current Market Price - (Strike Price + Option
Premium)
160 - (143 + 5) = 12
b) If there is a risk of sharp decline in the stock which could
result in large losses the portfolio can be insured either by
buying PUT option or selling the CALL option.
A PUT option is right to sell and so the buyer of PUT option will
earn profit with the decline in the stock.
Similarly, the CALL option could be sold and the seller will earn
the option premium. If the stock declines then option will expire
as worthless profit could be realized from the premium.
The PUT option strategy involves cash outflow but it also has fixed
amount of loss if the condition is unfavorable.
The CALL option has a cash inflow initially but it could result in
large losses if the stock gains in the price sharply.
c) The PUT option has strike price of $135 and the premium is
$2. Again, it means the profit will be realized if the stock price
goes below $133. The maximum profit will be realized if the stock
price is zero.
Profit = Strike Price - (PUT Option Premium + Current Market
Price)
135 - (2 + 0) = $133
Please not that if the stock price rises then the PUT option will
worthless and the maximum loss is limited to the option premium
that is $2.