An average rate option has been designed to provide protection against movements in the average exchange rate over a given period.
There are two types of Average Rate Options:
You select price, expiry date and averaging dates. The averaging dates can be as frequent as required and need not to be at regular intervals. Similarly, the averaging amounts do not have to be equal. Funds are not exchanged until the final value date, at which time you receive the difference between the weighted average rate over the given period and the agreed strike price if the option is in the money.
You only select the expiry date, averaging dates and amounts. On the expiry date the weighted average rate becomes the strike price of the option. If this average rate/strike price is in the money at maturity, you receive the difference between the average rate/strike price and the spot rate at that time.
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You are a Australian subsidiary of a foreign company which must, at the end of each year, translate profits at an average exchange rate. The required averaging dates are the end of each month. In order to repatriate the profits in one year you will need to sell AUD. In this example the current spot price is 0.5700 and the one year forward rate is 0.5750.
You are unsure of the future direction of the AUD. You want to protect yourself against an adverse currency movement but would like to benefit from any appreciation in the AUD.
You purchase an AUD Put Average Strike Rate Option with averaging dates at the end of each month. This would cost 2.70% of the USD amount
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You are a Australian company that exports USD1m worth of goods to the US each month. You want to protect your receivables over the next 12 months. In this example the current spot price is 0.5700.
You are unsure of the future direction of the AUD. You want to protect yourself against adverse currency movements but would like to benefit from any appreciation in the AUD.
You purchase an AUD call Average Spot Rate Option with a strike of 0.5700 and averaging dates at the end of each month. The agreed source for the average rate is the 11.00am daily exchange rate recorded by the Bank of England on Reuters page HSRA. This option will cost 1.85% of the USD amount.
During the period, on each averaging date, you simply sell the US dollars you receive in the spot market for Australian Dollars. By dealing as close to 4 p.m. as possible you can ensure that the average rate you effectively deal at over the year is very close to the average rate used to settle the Average Spot Rate Option.
At the end of the period you will have effectively dealt at the average rate for the period.
1. If the average rate for the period is greater than 0.5700 you will exercise your option and your bank will pay you the difference between the average rate and the 0.5700 strike price. The amount you receive will effectively lower your actual dealing rates on average, to 0.5700 (provided the basis risk between the rate source for the averaging process and the rate you actually deal at each month is minimal).
2. If the average rate is below 0.5700 you would allow the option to lapse. In this case you will have benefited from the more advantageous averaging rate over the period in your monthly dealings.
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