Like other major financial markets Forex market has several active derivatives markets that make use of forex currency pairs as the source of an underlying asset.
Derivatives can be valued by the price model of various market-derived parameters. In the market for foreign exchange, perhaps the largest and most well-established of these classes of derivatives are described as FX, forex also known as currency or forex options. Options are traded actively on the Over the Counter or OTC market, as well as in certain stock and futures exchanges. FX options trading is even increasingly becoming available to traders who are retail through online trading platforms.
The currency option market even has its own over counter brokers, which are different from typical forex brokers. The FX Options market produces a substantial daily turnover which makes it one of the most liquid derivatives markets anywhere in the world.
What is Currency Options?
In general these are financial agreements that give the right but not the obligation for the buyer to exchange a specified amount of one currency against another with a certain exchange rate known as the strike rate. The buyer of a forex option pays the seller a fee or premium in order to obtain this right.
If the option buyer wants to exercise their currency option, they have to exercise it prior to the end of the contract’s existence. This date is also called the expiration date.
At the time of exercise the declared exchange of currencies at strike prices will then occur on the settlement date specified by the contract which is typically the spot delivery date on the date that the option’s exercise is completed. For futures contracts involving currency, the settlement date will be the one of the underlying futures contract.
Options with an exchange rate that is higher than the prevailing exchange rate at the time of the delivery are referred to as In the Money. If the strike price is equal to the prevailing spot exchange rate is said that they are at the Money Spot and options with a strike cost determined at the current forward rate are considered to be At the Money Forward. FX options that are struck at an exchange rate lower than the forward rate in force are referred to as out of the money.
Since FX options are options that are based on an exchange rate and are not a vanilla or regular currency, options generally involve the buying of one currency, and the selling of another. The currency that is purchased if the option is exercised is known as the call currency. While the currency that is traded is known as”put” currency.
Additionally, currency option contracts usually have a specified design for exercising the option. The stated style could vary, but it could be American Style, which implies that the option may be exercised at any date before the date of expiration as well as European Style, which signifies that the option can only be exercised on its expiration date by a certain time.
Uses for Currency Options
Currency options can be purchased in order to use them as an insurance policy to secure or hedge an existing or anticipated forex position. In this case, the option’s premium is paid to guarantee an execution of the forex position at the strike price of the option.
Additionally to this, currency options can be sold against an existing forex position to generate additional income that increases the rate at which the position is breakeven. This is similar to the strategy of covered writing employed by some stockholders. For example, a trader who is trading the currency pair GBP/USD could sell an out of pocket GBP Call/USD Put to restrict profits to the limit of the strike rate while increasing their breakevens if the market falls.
Options trading in forex can be utilized to mix options into various strategies that are able to make strategic decisions in the foreign exchange market based upon the market’s specific view and to hedge against the possibility of adverse market movements and increase yield.
The currency options are also utilized to place bets on the level of change that is anticipated in the market for forex. Since an indicator called implied volatility is used to value options on currency, which reflects the level of fluctuation anticipated in the market, their value is likely to rise and decrease based on the amount of the market determined quantity. This permits professional forex traders to make their opinions known as well as trade on implied volatility.
What European Currency Options are priced
In addition to having their prices determined by supply and demand on exchanges like those on the Chicago IMM and PHLX exchanges currencies can also be theoretically priced using an improved mathematical pricing model, based on the standard Black Scholes option pricing model which was designed to price stock options.
This pricing model for options in the currency market is known in Garman Kohlhagen model. Garman Kohlhagen model because researchers called Garman as well as Kohlhagen altered the Black Scholes model in 1983 to incorporate the different interest rates for both currencies used in a pair.
Traders using the Garman Kohlhagen pricing model for currency options will generally require the input of these parameters to calculate a theoretical cost for an European Style currency option:
CALL CURRENCY – The amount of the currency pair in which the option will grant buyers the option of purchasing the buyer.
Put Currency – The currency that is in the currency pair to which is the choice that grants buyers the option of selling to buy.
Strike Price – The price at when the two currencies of the underlying currency pair are to be exchanged if the option is exercised.
Expiration Date – The only day on which the option can be exercised because it’s a European Style option.
Spot Rate – The current exchange rate for the base currency pair.
Spot Delivery Date – The date that the currency will be exchanged if the option is used.
Forward Rate: The current forward rate of exchange for the currency pair used to calculate the option’s settlement or delivery date.
Option Delivery or Settlement Date – the date that the currency of the option will be exchanged when the option is exercised.
Implied Volatility is the market determines the level of implied volatility of the underlying currency pair as well as for the stipulated tenor of the options.
Entering the above information into a computer program coded using this Garman Kohlhagen pricing model results in a price, which is often stated in the real world as a percentage percentage of the base currency amount in the over-the-counter market. For exchanges such as the Chicago IMM, the quoted price could be expressed in U.S. points per currency amount. The premium for the option will typically have to be paid out in U.S. Dollars.
To complete an order, the amount of one currency will need to be communicated to the market maker. This will enable the proper computation of the premium, which is the sum expressed in the choice’s currency that the buyer will be required to give to the seller in order to buy the currency option contract.
Option Intrinsic Value and Extrinsic Value
European and American Style currency options have two factors that determine their worth.
The first part is known as intrinsic value. it is the value of the difference between the option’s strike price and the current forward exchange rate at the option’s delivery date. Options that are deeply in the money, with low implied volatility levels and near expiration, tend to have prices made entirely by intrinsic worth.
The second portion of an option’s cost is also known as extrinsic price, which comprises all the remaining part of the market value for the option. Options that have a high implied volatility, with a long period of time before expiration and strike prices that are located at the market tend to have the highest value in extrinsic. The part that is time-based in extrinsic value is usually referred as the time value.
American Style options on the higher interest rate currency tend to have a slight higher time value than the otherwise identical European Style options, as the next section will demonstrate in greater detail.
American Style Currency Option Pricing and Early Exercise Criteria
American style options can take effect at any point prior to expiration, which means their pricing is subject to a change to the pricing model which is now integrated into the so-called Binomial Model typically used to price these types of options.
The parameters used to determine the price of American Style currency options are similar to the inputs listed below for European Style currency options, however, the pricing of these options should take into account the possible minor benefit of exercising earlier to the purchaser. In real life, this implies that American Style forex options are typically comparable in cost to but they aren’t any more expensive than European Style options.
The variance between the usually more expensive price for one American Style option when compared to that of those who choose the European Style option with otherwise similar parameters is often referred to as the Ameriplus among traders of currency options.
Since the early execution of an American Style option will eliminate any remaining value from this option, which could be a substantial amount of the value of the option — these options are typically only executed early if they’re deep in the money call option on the higher interest rate currency.
To justify the earlier exercise to justify early exercise, in order to justify early exercise American Style option needs to be in the money in a way that the positive carry of the base position up to the option’s max delivery date is currently greater than the option’s available time value. If that’s not the case, it is normally more beneficial to sell these American Style options to capture both the time and intrinsic value, rather than to exercise them earlier and lose the remaining time value in the process.
It is the OTC FX Options Market
There is an Over the Counter market for currency options operates among major financial institutions and their clients. Trading forex options typically occurs over the phone or via electronic systems of dealing between customers at the bank as well as the dealing desk as well as market makers working at the institution. Clients of the dealing desk could be looking to hedge corporate exposures when they represent an interest of a company or may be seeking to take risky positions in a currency pair with forex options, if they are working for an investment firm, for example.
In addition, specialized forex option brokers provide implied volatility levels and the delta level or strike of interest in currency options that are indicative of their liquidity for the option. This allows currency options market makers to provide efficient estimates.
After the implied volatility and the delta level, or strike price of the transaction is agreed upon with the broker then the OTC FX options broker is able to join the seller and buyer together in the event that credit lines are in place between the counterparties who could be able to handle the size that the deal.
In general professional market makers working within OTC FX market OTC FX market will typically have a requirement that any client that comes through their dealing desk has an interest in option that is greater than $1,000,000 in its notional amount, while OTC FX options brokers will typically only assist with transactions that exceed $5,000,000. OTC FX options broker would typically only look to assist with transactions that have notional amounts greater than $5,000,000.
Other Ways to Trade Currency Options
If you are not eligible for or prefer not to trade in OTC, or do not want to trade in the OTC market, gaining knowledge of how to trade currency options through other channels could require some research.
For those that prefer the more transparent pricing when transacting derivatives through an exchange, a number of major exchanges offer liquidity in modest amounts that traders can use to conduct currency option transactions.
To begin with, forex options can be traded on exchanges for futures such as those of the Chicago International Monetary Market or IMM. They are actually options on currency futures contracts, so the underlying asset isn’t an OTC spot trade like OTC markets. OTC market, but instead it is a futures contract. They typically have standard calendars for delivery on a quarterly basis for example, March, June, September and December.
In addition, certain stock exchanges offer forex options. One of the most popular examples is the Philadelphia Stock Exchange or PHLX which provides standard forex option contracts that have quarterly delivery dates that deliver to the spot market, not futures contracts.
A relatively recent choice in trading that has increased currency option access to the retail market has been the rise of forex option brokers online. They usually offer markets with classic European and American fashion, like similar options in the OTC currency option market, or offer exotic options in the form of binary options for their customers wanting to speculate on movements in the currency pair.
