Glossary

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Horizontal Spread

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See Also:

Spread: Spread (Also referred to as Straddle) is the purchase of one futures delivery month against the sale of another futures delivery month of the same commodity; the purchase of one delivery month of one commodity against the sale of that same delivery month of a different commodity; or the purchase of one commodity in one market against the sale of the commodity in another market, to take advantage of a profit from a change in price relationships. The term spread is also used to refer to the difference between the price of a futures month and the price of another month of the same commodity. A spread can also apply to options.

A spread is the simultaneous purchase and sale of the same or similar commodity, in different or the same contract months. Spread trading is usually considered to be a lower risk strategy than an outright long or short futures position, and therefore margin requirements are usually less.

Not only can spreads be utilized in futures markets, but options provide even more opportunities for successful spread trading. With so many variables including strike prices, trading months, and different markets available, the permutations and combinations of option strategies are tremendous.

Some of the advantages of spreads are:
 - require smaller margin deposits;
 - lower risk
 - seasonal patterns exist among spread relationships.

Calendar Spread: Calendar Spread is a trading strategy that involves:
1) The purchase of one delivery month of a given futures contract and simultaneous sale of a different delivery month of the same futures contract;
2) the purchase of a put or call option and the simultaneous sale of the same type of option with typically the same strike price but a different expiration date. Callendar Spread is also called a horizontal spread or time spread.

Call: There are three meaning of the "Call" term. It could be:
1) An option contract giving the buyer the right but not the obligation to purchase a commodity or other asset or to enter into a long futures position;
2) a period at the opening and the close of some futures markets in which the price for each futures contract is established by auction;
3) the requirement that a financial instrument be returned to the issuer prior to maturity, with principal and accrued interest paid off upon return.

Called: Called is another term for exercised when an option is a call. In the case of an option on a physical, the writer of a call must deliver the indicated underlying commodity when the option is exercised or called. In the case of an option on a futures contract, a futures position will be created that will require margin, unless the writer of the call has an offsetting position.

Diagonal Spread: Diagonal Spread is a trading strategy that involves a spread between two call options or two put options with different strike prices and different expiration dates. There are other trading strategies, such as Horizontal Spread and Vertical Spread.

Expiration Date: Expiration Date is the last date on which an option may be exercised. This is the date on which an option contract automatically expires; the last day an option may be exercised. It is not uncommon for an option to expire on a specified date during the month prior to the delivery month for the underlying futures contracts.

On an option exchange, every 3rd Friday of the month is expiration day for monthly options. A number of option series expire on this day.

At expiration all call options with a higher strike price than the expiration price of the underlying stock/currency or index will be worthless. All series with a lower strike price will have value and will be exercised. In the case of put options the opposite applies.

For all holders of call options it will be optimal when the value of the positions at expiration is as low as possible.

Options expiration date is the most important factor in calculating an options price:

• The Black Scholes formula is used to price a European style option by factoring in current stock price, strike price, time until expiration, level of interest rates, any dividends and the volatility of the underlying security. The binomial model is used to price American style options.
• The binomial model calculates a tree of stock prices for given time intervals within the expiration period of the option using the volatility of a stock and time to expiration to find out how much a stock will increase or decrease in value. This calculation gives all possible prices of a stock. Then, the option prices of the stock are calculated backwards, from expiration to present. These prices are obtained by using risk neutral valuation. Ultimately, we get one price for the option.

Option: Option is a contract that gives the buyer the right, but not the obligation, to buy or sell a specified quantity of a commodity or other instrument at a specific price within a specified period of time, regardless of the market price of that instrument. There are two types of options: Put Options and Call Options.

Strike Price: Strike Price (Exercise Price) is the price, specified in the option contract, at which the underlying futures contract, security, or commodity will move from seller to buyer. Strike Price is the price at which the buyer of a call (put) option may choose to exercise his right to purchase (sell) the underlying futures contract.

Time Spread:  Time Spread ( also called Horizontal Spread) is a trading strategy that involves selling of a nearby option and buying of a more deferred option with the same strike price.

Vertical Spread: Vertical Spread is a trading strategy that involves the simultaneous purchase and sale of options of the same class and expiration date but different strike prices, including bull vertical spreads, bear vertical spreads, back spreads, and front spreads. There are other types of spread trading strategies, such as Horizontal Spread and Diagonal Spread.

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