Forex options
Family I · Instruments
Not to be confused with forex, forex pairs, forex vps.
Forex options are derivative contracts whose underlying asset is a currency pair. The buyer pays a premium for the right to exchange one currency for another at a fixed rate, known as the strike price, during a set period. The seller of the option receives the premium and carries the obligation to fulfil the contract if the buyer exercises it.
Contract mechanics
A forex option specifies the currency pair, the notional amount of the base currency, the strike price, the expiration date and the premium. The buyer may exercise the option, sell it before expiry or let it expire worthless. The seller has no choice: if the buyer exercises, the seller must deliver the currency at the strike price.
Two standard styles exist. A European option can be exercised only on the expiration date. An American option can be exercised at any time up to and including that date. The choice of style affects the premium, because greater exercise flexibility carries more value for the buyer.
Worked example
An importer expects to pay 1,000,000 euros in three months and buys a European call option on EUR/USD with a strike of 1.1000. The premium is 0.0050 USD per euro, or 5,000 USD, paid upfront.
If the spot rate at expiry had been 1.0900, the option would have expired worthless and the importer would have lost the 5,000 USD premium while still buying euros at the prevailing market rate.
Uses and risks
Forex options are used to hedge currency exposure, to express a directional view with limited downside, or to generate premium income by writing options. The buyer's maximum loss is the premium; the seller's potential loss can be substantial if the market moves sharply against the position.
Pricing depends on the spot rate, strike price, time to expiry, interest-rate differentials between the two currencies and implied volatility. Access to forex options, contract sizes, available expirations and margin requirements vary by broker and by jurisdiction, so the terms of any particular contract are set by the venue offering it.
Often confused with
- forex
- Forex is the global over-the-counter market where national currencies are exchanged in pairs, with prices quoted as the amount of one currency required to buy another.
- forex pairs
- Forex pairs are quoted units in which one currency is priced against another, so that the exchange rate expresses how much of the second currency is needed to buy one unit of the first.
- forex vps
- A forex VPS is a virtual private server hosted in a data centre and used to run trading software, such as MetaTrader, continuously so that automated strategies and open positions remain active when the trader's own computer is switched off.