Submitted by: Submitted by siggsnus
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Words: 775
Pages: 4
Category: Business and Industry
Date Submitted: 03/09/2012 06:38 AM
Case: Bruce Honiball’s invention
The proposed construction of Bruce’s equity linked deposits offers the depositors a guarantee of the initial amount invested, in addition to a potential payout linked to the Australian stock market. The payout table for the different scenarios is as follows: 1) Stock prices goes up: Depositor receives initial investment of 100 + 100*y*0,5 where y represents % growth in share prices. 2) Stock prices unchanged or down: Depositor receives initial investment of 100. This scenario can be compared to one where a call‐option on the equity index is acquired, as the initial investment is returned to depositor regardless of the development in the stock market. The expected return of such an option is very similar to the equity linked deposits ‐ the expected payoff is 0 if stock prices decline or remain unchanged, while it provides a return of y*100 when share prices grow by y%. A vital difference however, is that a call option will let the owner take part in the full upside of an increase in share prices, while the equity linked deposits only offer a return of 0,5 y. To evaluate whether the suggested savings product could generate a positive NPV for the bank, one must calculate the value of such an option, whether the bank can hedge itself properly and whether the interest gained on deposits may generate enough return to cover any affiliated costs of hedging and generating a surplus. First of all, we must calculate the present value of receiving the initial investment back in 1 year. This can be done by discounting with the current interest rate of 5,9%. 100/1,059 = 94,43 Second, we calculate the value of the option by using the Black & Scholes option pricing formula: Assuming that: Index: Exercise price: Interest rate: Time: 100 100 5,9 % 1 year ∗
, we only need to compute the volatility of the stock market to use the formula. If we use table 22.3, ...