The value of an option increases with both the variability of the share, the time to maturity and with the interest rate. (An option is like a free loan, because you are not obliged to pay the exercise price until you decide to exercise the option. Therefore the value of an option increases with the interest rate). It decreases with a higher exercise price.
It is very difficult to find the value of an option. Black and Scholes did it (for European options) and it is a complicated formula.
example:
Banque Nationale de Paris |
Call |
1998 |
december |
340 41 |
Call |
1998 |
december |
380 18,6 |
Put |
1998 |
december |
280 5 |
Put |
1998 |
december |
320 18,6 |
Parallels with physical investments >>
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Corporate finance
PART ONE: CAPITAL EXPENDITURE
The present value
Investment
decisions
Practical
problems in capital budgeting
Firms evaluation
PART TWO. BASICS OF FINANCE
The financial
markets
Options
The market
efficiency
Risk
Mergers,
Acquisitions, and Corporate Control
International
Financial Management
PART THREE FINANCING DECISIONS
Corporate
financing
Dividend policy
and capital structure
PART FOUR FINANCIAL MANAGEMENT
Financial
planning
Short-term
financial management
Course created and updated by Dr David Chelly, PhD in Management sciences from the University of Tours.
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