Exchange rates between currencies vary continually and often substantially. This
variability can be a source of concern for anyone involved in international business. A U.S.
exporter who sells goods in England, for example, will be paid in British pounds, and the
dollar value of those pounds depends on the exchange rate at the time payment is made.
Until that date, the U.S. exporter is exposed to foreign exchange rate risk. This risk can
800
P A R T V I
Options, Futures, and Other Derivatives
be hedged through currency futures or forward markets. For example, if you know you
will receive £100,000 in 90 days, you can sell those pounds forward today in the forward
market and lock in an exchange rate equal to today’s forward price.
The forward market in foreign exchange is fairly informal. It is simply a network of
banks and brokers that allows customers to enter forward contracts to purchase or sell
currency in the future at a currently agreed-upon rate of exchange. The bank market in
currencies is among the largest in the world, and most large traders with sufficient credit-
worthiness execute their trades here rather than in futures markets. Unlike those in futures
markets, contracts in forward markets are not standardized in a formal market setting.
Instead, each is negotiated separately. Moreover, there is no marking to market, as would
occur in futures markets. Cur-
rency forward contracts call for
execution only at the maturity
date. Participants need to con-
sider counterparty risk, the pos-
sibility that a trading partner may
not be able to make good on its
obligations under the contract if
prices move against it. For this
reason, traders who participate in
forward markets must have solid
creditworthiness.
Currency
futures,
however,
trade in formal exchanges such as
the Chicago Mercantile Exchange
(International Monetary Market)
or the London International Finan-
cial Futures Exchange (LIFFE).
Here contracts are standardized by
size, and daily marking to market
is observed. Moreover, standard
clearing arrangements allow trad-
ers to enter or reverse positions
easily. Margin positions are used
to ensure contract performance,
which is in turn guaranteed by the
exchange’s clearinghouse, so the
identity and creditworthiness of
the counterparty to a trade are less
of a concern.
Figure 23.1 reproduces The
Wall Street Journal
listing of
foreign exchange spot and for-
ward rates. The listing gives the
number of U.S. dollars required
to purchase some unit of foreign
currency and then the amount of
foreign currency needed to pur-
chase $1. Figure 23.2 reproduces
futures listings, which show the
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