Movatterモバイル変換


[0]ホーム

URL:


Jump to content
WikipediaThe Free Encyclopedia
Search

Forward contract

From Wikipedia, the free encyclopedia
Financial derivative
This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Forward contract" – news ·newspapers ·books ·scholar ·JSTOR
(July 2008) (Learn how and when to remove this message)
Part of a series on
Financial markets
Looking up at a computerized stocks-value board at the Philippine Stock Exchange
Bond market
Stock market
Other markets
Alternative investment
Over-the-counter (off-exchange)
Trading
Related areas

Infinance, aforward contract, or simply aforward, is a non-standardized contract between two parties to buy or sell an asset at a specified future time at a price agreed on in the contract, making it a type ofderivative instrument.[1][2] The party agreeing to buy the underlying asset in the future assumes along position, and the party agreeing to sell the asset in the future assumes ashort position. The price agreed upon is called thedelivery price, which is equal to theforward price at the time the contract is entered into.

The price of the underlying instrument, in whatever form, is paid before control of the instrument changes. This is one of the many forms of buy/sell orders where the time and date of trade is not the same as thevalue date where thesecurities themselves are exchanged. Forwards, like other derivative securities, can be used tohedge risk (typically currency or exchange rate risk), as a means ofspeculation, or to allow a party to take advantage of a quality of the underlying instrument which is time-sensitive.

Payoffs

[edit]

The value of a forward positionat maturity depends on the relationship between the delivery price (K{\displaystyle K}) and the underlying price (ST{\displaystyle S_{T}}) at that time.

Since the final value (at maturity) of a forward position depends on the spot price which will then be prevailing, this contract can be viewed, from a purely financial point of view, as"a bet on the future spot price"[3]

How a forward contract works

[edit]

Suppose that Bob wants to buy a house a year from now. At the same time, suppose that Alice currently owns a$100,000 house that she wishes to sell a year from now. Both parties could enter into a forward contract with each other. Suppose that they both agree on the sale price in one year's time of$104,000 (more below on why the sale price should be this amount). Alice and Bob have entered into a forward contract. Bob, because he is buying the underlying, is said to have entered a long forward contract. Conversely, Alice will have the short forward contract.

At the end of one year, suppose that the current market valuation of Alice's house is$110,000. Then, because Alice is obliged to sell to Bob for only$104,000, Bob will make a profit of$6,000. To see why this is so, one needs only to recognize that Bob can buy from Alice for$104,000 and immediately sell to the market for$110,000. Bob has made the difference in profit. In contrast, Alice has made a potential loss of$6,000, and an actual profit of$4,000.

The similar situation works among currency forwards, in which one party opens a forward contract to buy or sell a currency (e.g. a contract to buy Canadian dollars) to expire/settle at a future date, as they do not wish to be exposed to exchange rate/currency risk over a period of time. As the exchange rate between U.S. dollars and Canadian dollars fluctuates between the trade date and the earlier of the date at which the contract is closed or the expiration date, one party gains and the counterparty loses as one currency strengthens against the other. Sometimes, the buy forward is opened because the investor will actually need Canadian dollars at a future date such as to pay a debt owed that is denominated in Canadian dollars. Other times, the party opening a forward does so, not because they need Canadian dollars nor because they are hedging currency risk, but because they are speculating on the currency, expecting the exchange rate to move favorably to generate a gain on closing the contract.

In a currency forward, thenotional amounts of currencies are specified (ex: a contract to buy$100 million Canadian dollars equivalent to, sayUS$75.2 million at the current rate—these two amounts are called the notional amount(s)). While the notional amount or reference amount may be a large number, the cost or margin requirement to command or open such a contract is considerably less than that amount, which refers to theleverage created, which is typical inderivative contracts.

Example of how forward prices should be agreed upon

[edit]

Continuing on the example above, suppose now that the initial price of Alice's house is$100,000 and that Bob enters into a forward contract to buy the house one year from today. But since Alice knows that she can immediately sell for$100,000 and place the proceeds in the bank, she wants to be compensated for the delayed sale. Suppose that the risk free rate of return R (the bank rate) for one year is 4%. Then the money in the bank would grow to$104,000, risk free. So Alice would want at least$104,000 one year from now for the contract to be worthwhile for her – theopportunity cost will be covered.

Spot–forward parity

[edit]
Main article:Forward price
See also:Cost of carry andconvenience yield

Forliquid assets ("tradeables"), spot–forward parity provides the link between the spot market and the forward market. It describes the relationship between the spot and forward price of the underlying asset in a forward contract. While the overall effect can be described as thecost of carry, this effect can be broken down into different components, specifically whether the asset:

  • pays income, and if so whether this is on a discrete or continuous basis
  • incurs storage costs
  • is regarded as
    • aninvestment asset, i.e. an asset held primarily for investment purposes (e.g. gold, financial securities);
    • or aconsumption asset, i.e. an asset held primarily for consumption (e.g. oil, iron ore etc.)

Investment assets

[edit]

For an asset that providesno income, the relationship between the current forward (F0{\displaystyle F_{0}}) and spot (S0{\displaystyle S_{0}}) prices is

F0=S0erT{\displaystyle F_{0}=S_{0}e^{rT}}

wherer{\displaystyle r} is the continuously compounded risk free rate of return, andT is the time to maturity. The intuition behind this result is that given you want to own the asset at timeT, there should be no difference in a perfect capital market between buying the asset today and holding it and buying the forward contract and taking delivery. Thus, both approaches must cost the same in present value terms. For an arbitrage proof of why this is the case, seeRational pricing below.

For an asset that paysknown income, the relationship becomes:

whereI={\displaystyle I=} the present value of the discrete income at timet0<T{\displaystyle t_{0}<T}, andq%p.a.{\displaystyle q\%p.a.} is the continuously compounded dividend yield over the life of the contract. The intuition is that when an asset pays income, there is a benefit to holding the asset rather than the forward because you get to receive this income. Hence the income (I{\displaystyle I} orq{\displaystyle q}) must be subtracted to reflect this benefit. An example of an asset which pays discrete income might be astock, and an example of an asset which pays a continuous yield might be aforeign currency or astock index.

For investment assets which arecommodities, such asgold andsilver, storage costs must also be considered. Storage costs can be treated as 'negative income', and like income can be discrete or continuous. Hence with storage costs, the relationship becomes:

whereU={\displaystyle U=} the present value of the discrete storage cost at timet0<T{\displaystyle t_{0}<T}, andu%p.a.{\displaystyle u\%p.a.} is the continuously compounded storage cost where it is proportional to the price of the commodity, and is hence a 'negative yield'. The intuition here is that because storage costs make the final price higher, we have to add them to the spot price.

Consumption assets

[edit]

Consumption assets are typically raw material commodities which are used as a source of energy or in a production process, for examplecrude oil oriron ore. Users of these consumption commodities may feel that there is a benefit from physically holding the asset in inventory as opposed to holding a forward on the asset. These benefits include the ability to "profit from" (hedge against) temporary shortages and the ability to keep a production process running,[1] and are referred to as theconvenience yield. Thus, for consumption assets, the spot-forward relationship is:

wherey%p.a.{\displaystyle y\%p.a.} is the convenience yield over the life of the contract. Since the convenience yield provides a benefit to the holder of the asset but not the holder of the forward, it can be modelled as a type of 'dividend yield'. However, it is important to note that the convenience yield is a non cash item, but rather reflects the market's expectations concerning future availability of the commodity. If users have low inventories of the commodity, this implies a greater chance of shortage, which means a higher convenience yield. The opposite is true when high inventories exist.[1]

Cost of carry

[edit]

The relationship between the spot and forward price of an asset reflects the net cost of holding (or carrying) that asset relative to holding the forward. Thus, all of the costs and benefits above can be summarised as thecost of carry,c{\displaystyle c}. Hence,

Relationship between the forward price and the expected future spot price

[edit]
Main articles:Normal backwardation andContango

The market's opinion about what the spot price of an asset will be in the future is theexpected future spot price.[1] Hence, a key question is whether or not the current forward price actually predicts the respective spot price in the future. There are a number of different hypotheses which try to explain the relationship between the current forward price,F0{\displaystyle F_{0}} and the expected future spot price,E(ST){\displaystyle E(S_{T})}.

The economistsJohn Maynard Keynes andJohn Hicks argued that in general, the natural hedgers of a commodity are those who wish to sell the commodity at a future point in time.[4][5] Thus, hedgers will collectively hold a net short position in the forward market. The other side of these contracts are held by speculators, who must therefore hold a net long position. Hedgers are interested in reducing risk, and thus will accept losing money on their forward contracts. Speculators on the other hand, are interested in making a profit, and will hence only enter the contracts if theyexpect to make money. Thus, if speculators are holding a net long position, it must be the case that the expected future spot price is greater than the forward price.

In other words, the expected payoff to the speculator at maturity is:

E(STK)=E(ST)K{\displaystyle E(S_{T}-K)=E(S_{T})-K}, whereK{\displaystyle K} is the delivery price at maturity

Thus, if the speculators expect to profit,

E(ST)K>0{\displaystyle E(S_{T})-K>0}
E(ST)>K{\displaystyle E(S_{T})>K}
E(ST)>F0{\displaystyle E(S_{T})>F_{0}}, asK=F0{\displaystyle K=F_{0}} when they enter the contract

This market situation, whereE(ST)>F0{\displaystyle E(S_{T})>F_{0}}, is referred to asnormal backwardation. Forward/futures prices converge with the spot price at maturity, as can be seen from the previous relationships by letting T go to 0 (see alsobasis); then normal backwardation implies that futures prices for a certain maturity are increasing over time. The opposite situation, whereE(ST)<F0{\displaystyle E(S_{T})<F_{0}}, is referred to ascontango. Likewise, contango implies that futures prices for a certain maturity are falling over time.[6]

Futures versus Forwards

[edit]

Forward contracts arevery similar to futures contracts, except they are not exchange-traded, or defined on standardized assets.[7] Forwards also typically have no interim partial settlements or "true-ups" in margin requirements like futures, that is the parties do not exchange additional property securing the party at gain and the entire unrealized gain or loss builds up while the contract is open. Therefore, forward contracts have a significantcounterparty risk which is also the reason why they are not readily available to retail investors.[8] However, being tradedover the counter (OTC), forward contracts specification can be customized and may includemark-to-market and daily margin calls.

Having no upfront cashflows is one of the advantages of a forward contract compared to its futures counterpart. Especially when the forward contract is denominated in a foreign currency, not having to post (or receive) daily settlements simplifies cashflow management.[9]

Compared to the futures markets it is very difficult to close out one's position, that is to rescind the forward contract. For instance while being long in a forward contract, entering short into another forward contract might cancel out delivery obligations but adds to credit risk exposure as there are now three parties involved. Closing out a contract almost always involves reaching out to the counterparty.[10]

Compared to their futures counterparts, forwards (especiallyForward Rate Agreements) needconvexity adjustments, that is a drift term that accounts for future rate changes. In futures contracts, this risk remains constant whereas a forward contract's risk changes when rates change.[11]

Outright versus Premium

[edit]

Outright prices, as opposed to premium points or forward points, are quoted in absolute price units. Outrights are used in markets where there is no (unitary) spot price or rate for reference, or where the spot price (rate) is not easily accessible.[12]

Conversely, in markets with easily accessible spot prices or basis rates, in particular theForeign exchange market andOIS market, forwards are usually quoted using premium points or forward points. That is using the spot price or basis rate as reference forwards are quoted as the difference inpips between the outright price and the spot price for FX, or the difference inbasis points between the forward rate and the basis rate for interest rate swaps and forward rate agreements.[13]

Note: The termoutright is used in the futures markets in a similar way but is contrasted with futures spreads instead of premium points, which is more than just a quoting convention, and in particular involves the simultaneous transaction in two outright futures.[14]

Rational pricing

[edit]

IfSt{\displaystyle S_{t}} is thespot price of an asset at timet{\displaystyle t}, andr{\displaystyle r} is the continuously compounded rate, then the forward price at a future timeT{\displaystyle T} must satisfyFt,T=Ster(Tt){\displaystyle F_{t,T}=S_{t}e^{r(T-t)}}.

To prove this, suppose not. Then we have two possible cases.

Case 1: Suppose thatFt,T>Ster(Tt){\displaystyle F_{t,T}>S_{t}e^{r(T-t)}}. Then an investor can execute the following trades at timet{\displaystyle t}:

  1. go to the bank and get a loan with amountSt{\displaystyle S_{t}} at the continuously compounded rate r;
  2. with this money from the bank, buy one unit of asset forSt{\displaystyle S_{t}};
  3. enter into one short forward contract costing 0. A short forward contract means that the investor owes thecounterparty the asset at timeT{\displaystyle T}.

The initial cost of the trades at the initial time sum to zero.

At timeT{\displaystyle T} the investor can reverse the trades that were executed at timet{\displaystyle t}. Specifically, and mirroring the trades 1., 2. and 3. the investor

  1. ' repays the loan to the bank. The inflow to the investor isSter(Tt){\displaystyle -S_{t}e^{r(T-t)}};
  2. ' settles the short forward contract by selling the asset forFt,T{\displaystyle F_{t,T}}. The cash inflow to the investor is nowFt,T{\displaystyle F_{t,T}} because the buyer receivesST{\displaystyle S_{T}} from the investor.

The sum of the inflows in 1.' and 2.' equalsFt,TSter(Tt){\displaystyle F_{t,T}-S_{t}e^{r(T-t)}}, which by hypothesis, is positive. This is an arbitrage profit. Consequently, and assuming that the non-arbitrage condition holds, we have a contradiction. This is called a cash and carry arbitrage because you "carry" the asset until maturity.

Case 2: Suppose thatFt,T<Ster(Tt){\displaystyle F_{t,T}<S_{t}e^{r(T-t)}}. Then an investor can do the reverse of what he has done above in case 1. This means selling one unit of the asset, investing this money into a bank account and entering a long forward contract costing 0.

Note: if you look at theconvenience yield page, you will see that if there are finite assets/inventory, the reverse cash and carry arbitrage is not always possible. It would depend on the elasticity of demand for forward contracts and such like.

Extensions to the forward pricing formula

[edit]

Suppose thatFVT(X){\displaystyle FV_{T}(X)} is the time value of cash flowsX at the contract expiration timeT{\displaystyle T}. Theforward price is then given by the formula:

Ft,T=Ster(Tt)FVT(all cash flows over the life of the contract){\displaystyle F_{t,T}=S_{t}e^{r(T-t)}-FV_{T}({\text{all cash flows over the life of the contract}})}

The cash flows can be in the form ofdividends from the asset, or costs of maintaining the asset.

If these price relationships do not hold, there is anarbitrage opportunity for a riskless profit similar to that discussed above. One implication of this is that the presence of a forward market will force spot prices to reflect current expectations of future prices. As a result, the forward price for nonperishable commodities, securities or currency is no more a predictor of future price than the spot price is - the relationship between forward and spot prices is driven by interest rates. For perishable commodities, arbitrage does not have this

The above forward pricing formula can also be written as:

Ft,T=(StIt)er(Tt){\displaystyle F_{t,T}=(S_{t}-I_{t})e^{r(T-t)}\,}

WhereIt{\displaystyle I_{t}} is the timet value of all cash flows over the life of the contract.

For more details about pricing, seeforward price.

Theories of why a forward contract exists

[edit]

Allaz and Vila (1993) suggest that there is also a strategic reason (in an imperfect competitive environment) for the existence of forward trading, that is, forward trading can be used even in a world without uncertainty. This is due to firms havingStackelberg incentives to anticipate their production through forward contracts.[15]

See also

[edit]

Other types of trade contracts:

Citations

[edit]
  1. ^abcdJohn C Hull, Options, Futures and Other Derivatives (6th edition), Prentice Hall: New Jersey, USA, 2006, 3
  2. ^Understanding Derivatives: Markets and Infrastructure,Federal Reserve Bank of Chicago
  3. ^Gorton, Gary; Rouwenhorst, K. Geert (2006)."Facts and Fantasies about Commodity Futures"(PDF).Financial Analysts Journal.62 (2):47–68.doi:10.2469/faj.v62.n2.4083.
  4. ^J.M. Keynes,A Treatise on Money, London: Macmillan, 1930
  5. ^J.R. Hicks,Value and Capital, Oxford: Clarendon Press, 1939
  6. ^Contango Vs. Normal BackwardationArchived 2014-07-26 at theWayback Machine,Investopedia
  7. ^Forward Contract on Wikinvest
  8. ^"Understanding Forward Contracts vs. Futures Contracts".Investopedia. Retrieved28 June 2020.
  9. ^"Understanding FX Forwards"(PDF). Archived fromthe original(PDF) on 24 November 2021. Retrieved28 June 2020.
  10. ^"Forward Contract vs Futures Contract".Diffen. Retrieved28 June 2020.
  11. ^"Convexity Adjustment Definition".Investopedia. Retrieved28 June 2020.
  12. ^Steiner, Bob (September 2012).Key Financial Market Concepts (2nd ed.). Financial Times/Prentice Hall.ISBN 9780273750284.
  13. ^"Forward Points".Investopedia. Retrieved29 June 2020.
  14. ^"Instrument Types Available on CME Globex".CME Globex. Retrieved29 June 2020.
  15. ^Allaz, Blaise; Vila, Jean-Luc (1993). "Cournot Competition, Forward Markets and Efficiency".Journal of Economic Theory.59 (1):1–16.doi:10.1006/jeth.1993.1001.

General and cited references

[edit]
  • John C. Hull (2000),Options, Futures and Other Derivatives, Prentice-Hall.
  • Abraham Lioui & Patrice Poncet (March 30, 2005),Dynamic Asset Allocation with Forwards and Futures, Springer
  • Keith Redhead (31 October 1996),Financial Derivatives: An Introduction to Futures, Forwards, Options and Swaps, Prentice-Hall
  • Forward Contract on Wikinvest

Further reading

[edit]
Options
Terms
Vanillas
Exotics
Strategies
Valuation
Swaps
Exotic derivatives
Other derivatives
Market issues
Authority control databases: NationalEdit this at Wikidata
Retrieved from "https://en.wikipedia.org/w/index.php?title=Forward_contract&oldid=1255081601"
Category:
Hidden categories:

[8]ページ先頭

©2009-2025 Movatter.jp