Question

In: Finance

A digital (European) option is an option which would pay nothing if the option is OTM...

A digital (European) option is an option which would pay nothing if the option is OTM upon expiration and pays a predetermined constant amount M if the underlying asset finished ITM.

Graph the payoffs of a digital call option (long and short) with strike price X.

Solutions

Expert Solution

Assume, Amount of Payment M= $10
Strike Price X=$100
Digital Long Call Option
Assume Price at expiration =S
If S< or =$100, Payoff =0
If S>$100, Payoff =$10
Digital Short Call Option
Assume Price at expiration =S
If S< or =$100, Payoff =0
If S>$100, Payoff =-$10
LONG CALL OPTION
S A
Price at Expiration Payoff Long CALL
$95 $0
$96 $0
$97 $0
$98 $0
$99 $0
$100 $0
$100.01 $10
$101 $10
$102 $10
$103 $10
$104 $10
$105 $10
$106 $10
$107 $10
$108 $10
$109 $10
$110 $10
$111 $10
$112 $10
SHORT CALL OPTION
S A
Price at Expiration Payoff SHORT CALL
$95 $0
$96 $0
$97 $0
$98 $0
$99 $0
$100 $0
$100.01 ($10)
$101 ($10)
$102 ($10)
$103 ($10)
$104 ($10)
$105 ($10)
$106 ($10)
$107 ($10)
$108 ($10)
$109 ($10)
$110 ($10)
$111 ($10)
$112 ($10)

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