Introduction to
Derivatives
Futures and Options
What is a financial derivative? In the business
world, the term is bandied about daily and is or is not defined as "a financial
instrument that derives its value from some other instrument or index." This
description is rarely enlightening and does not adequately explain its meaning. Further, a
generally agreed upon or authoritative definition of a derivative instrument does not
exist. Recent documents by the Financial
Accounting Standards Board (FASB) describe derivatives as "forwards, futures,
swaps, options, or financial instruments with similar characteristics." Still, what
does this mean?
Financial derivatives are contracts between two
parties under which they agree to an exchange. Often the exchange involves cash flows or
another financial instrument, the value of which may vary during the term of the contract.
Forwards, futures, swaps, and options are just common
examples of derivatives.
This case, however, deals with instruments often described as commodity derivatives. These instruments are not purely
financial but involve the exchange of cash for a commodity such as energy, precious
metals, and agricultural products. The case focuses on futures contracts or options on
futures as a means of managing risk. Attaching option packages such as caps, floors, and collars to the contract provides the user with a more
complete solution to risk management within a single transaction.
Terminology specific to
commodities
- Futures - A firm agreement to deliver a certain
volume of a commodity at a specified date or dates in the future and which can be bought
and sold exclusively on a regulated exchange. Futures contracts are settled daily based on
their current value in the marketplace.
- Options - A contract that provides the buyer of the
contract the firm ability to buy (or sell) a commodity from the option writer (seller) at
some time in the future at a predetermined price, but without obligating the buyer to
execute the purchase (or sale).
- Option on Futures - An option structured so
that the buyer receives a futures contract guaranteeing delivery at the option strike
price. The options are American options and can be exercised on any business day prior to
its expiration.
- Option Premium - A fee that is paid by the buyer to
the option writer for this flexibility. This is generally paid up front when the option
contract is originally written.
- Strike Price - The contract price at which the
option buyer has the right to buy or sell the commodity. Also called the exercise price.
Types of Contracts
There is regulated exchange trading in two types of options on futures contracts, known
as call options and put
options. Deciding on which one to consider investing in depends entirely on the
investor's price expectations. That is, it depends on whether the investor predicts the
price of a particular commodity to rise or fall.
- Call Option on Futures: Purchasing a call gives you a specific
locked-in price at which you have the right, but not the obligation, to buy a futures
contract on a commodity that you expect to increase in value. As a result, if you look for
the price of natural gas to increase, you would buy a natural gas call option.
- Put Option on Futures: Purchasing a put gives you a specific locked-in
price at which you have the right, but not the obligation, to sell a futures contract on a
commodity that you expect to decrease in value. Consequently, if you look for the price of
natural gas to decrease, you would buy a natural gas put option.
Option Payouts
Asymmetrical Risks: Option payouts are different from swaps and
futures because they have asymmetrical risks. Risks are limited on one side and unlimited
on the other.
- Buying (Long) a Call: A call buyer profits when
prices rise above the strike price. Below the strike price, the call does not have
exercise value, but the buyer has a sunk cost in the premium paid up front. (see graph)
- Writing (Short) a Call: A call writer earns and
keeps the premium when prices are below the strike price. But as prices rise above the
strike price, the writer begins to pay out. At some point, the payout exceeds the premium
earnings (breakeven) and subsequent price increases add to net losses. (see graph)
- Buying (Long) a Put: A put buyer profits when
prices fall with respect to the strike price. Above the strike price, the put has no
exercise value, but the buyer has a sunk cost in the premium paid up front. (see graph)
- Writing (Short) a Put: A put writer earns and
keeps the premium when prices are above the strike price. But as prices fall below the
strike price, the writer begins to pay out. At some point, the payout exceeds the premium
earnings (breakeven) and subsequent price declines add to net losses. (see graph)
There is no upper limit on the opportunity for profit. The greater the price movement,
the larger the profit (provided that it moves in the direction you anticipated and that it
occurs during the life of the option). As previously mentioned, it is the combination of
limited risk and an unlimited opportunity for profit that makes these options attractive
as an investment vehicle.
Option Packages
Option dealers will combine multiple options into user-friendly package transactions
that provide option users a more complete solution in a single transaction. The most
common option packages are caps, floors, and collars.
- Caps - A series of consecutive monthly calls provides continuous
protection to a consumer of energy. A package of such a series of calls into a single
transaction is called a cap. Each month market prices for the current month are measured
against the cap strike price. If prices are higher than the strike price, the cap buyer is
paid the difference. If prices are lower, there is no payment. This exercise is repeated
each month. The cap buyer pays for the cap with an up-front premium payment.
- Floors - A series of consecutive monthly puts provides continuous
protection to a seller of energy. A package of such a series of puts into a single
transaction is called a floor. Each month market prices for the current month are measured
against the floor strike price. If prices are lower than the strike price, the floor buyer
is paid the difference. If prices are higher, there is no payment. This exercise is
repeated each month. The floor buyer pays for the floor with an up-front premium payment.
- Collars - An option package consisting of a series of purchased calls
and sold puts creates a collar and provides price protection against rising prices to an
energy user. The short puts in series require payout if prices fall. For an energy user,
this payout is offset by lower energy costs. The net effect is a minimum cost of energy
and, from the calls, a maximum cost for energy.
Option packages share certain common structural characteristics:
- Independent Exercise - Each monthly call or put in the option package is exercisable
independent of actions taken with other options in the package. Exercising one option does
not affect the ability to exercise other options in the package.
- Single Transaction - An option package, although effectively containing multiple
options, is documented as a single transaction.
- Financial Settlement - As a general rule, option packages do not require physical
delivery at settlement. Settlement is generally
cash settlements.
- Single Strike Price - In many option packages, a single strike price is established and
applied to all the component options.
Concept of Hedging
A hedge is a mechanism by which a party minimizes its
exposure to price volatility. The function of a hedge is to preserve the value of a
product held by a party or to lock in a profit on a future sale or use of the product by
the party. In other words, a party has a position in relation to the product and they want
to protect that position. A party will either be long or short in a position.
- A long position means that a party has purchased or
holds the commodity and has the need to protect the value of the commodity held or
purchased.
- A short position means that a party has sold, or does
not have the commodity, and has the need to protect the value of the sale made.
An ideal or perfect hedge leaves no remaining price risk. The hedge has covered the
entire risk identified and the value is locked in or guaranteed.
Hedging requires the assessment of the cost and advisability of a perfect hedge versus
a partial hedge. A partial hedge mitigates some, but not all of the risk.
A variety of factors are involved in this assessment of cost and advisability. The cost
of a hedge depends upon the:
- term of transaction - the longer the term, the more expensive
- complexity of deal - the more complex, the more expensive
- location of purchase (sale) - the longer the distance the commodity has to travel, the
more expensive, and
- liquidity of the players - the less liquid, the more expensive.
The advisability of the hedge depends upon the risk appetite of the participants and
the results of the cost/benefit analysis performed.
Strike Price
Corporate treasurers can choose a variety of strike
prices for hedging purposes: in-the-money, out-of-the-money, and at-the-money options. In-the-money call (put) options
have exercise prices lower (higher) than the market price of the optioned asset.
Out-of-the-money call (put) options have strike prices above (below) the asset's market
price. At-the-money options have strike prices equal to the market price of the asset on
which the option is written.
While out-of-the-money options are cheaper, they also offer less protection to the
treasurer. Since it is the protection of the underlying cash flow that is the major reason
for hedging, treasurers are likely to reject options that are way out of the money for
hedging purposes. In-the-money options are more expensive than at-the-money options.
Therefore, treasurers are likely to prefer at-the-money options since they tie up less of
the corporate funds over the life of the option.
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