Currency Pair - Base Currency

Base Currency

Most traded currencies by value
Rank Currency ISO 4217 code
(Symbol)
% daily share
(April 2010)
1  United States dollar USD ($) 84.9%
2  Euro EUR (€) 39.1%
3  Japanese yen JPY (¥) 19.0%
4  Pound sterling GBP (£) 12.9%
5  Australian dollar AUD ($) 7.6%
6  Swiss franc CHF (Fr) 6.4%
7  Canadian dollar CAD ($) 5.3%
8  Hong Kong dollar HKD ($) 2.4%
9  Swedish krona SEK (kr) 2.2%
10  New Zealand dollar NZD ($) 1.6%
11  South Korean won KRW (₩) 1.5%
12  Singapore dollar SGD ($) 1.4%
13  Norwegian krone NOK (kr) 1.3%
14  Mexican peso MXN ($) 1.3%
15  Indian rupee INR 0.9%
Other 12.2%
Total 200%

The rules for formulating standard currency pair notations result from accepted priorities attributed to each currency.

From its inception in 1999 and as stipulated by the European Central Bank, the euro has first precedence as a base currency. Therefore, all currency pairs involving it should use it as their base, listed first. For example, the US dollar and euro exchange rate is identified as EUR/USD.

Although there is no standards-setting body or ruling organization, the established priority ranking of the major currencies is:

  • Euro
  • Pound sterling
  • Australian dollar
  • New Zealand dollar
  • United States dollar
  • Canadian dollar
  • Swiss franc
  • Japanese yen

Historically, this was established by a ranking according to the relative values of the currencies with respect to each other, but the introduction of the euro and other market factors have broken the original price rankings.

Other currencies (the Minors) are generally quoted against one of the major currencies. These pairs are also referred to as currency crosses, or simply crosses. The most common crosses are EUR, JPY, and GBP crosses.

The term base currency in the foreign exchange field is also used as the accounting currency by banks, and is usually the domestic currency. For example, a British bank may use GBP as a base currency for accounting, because all profits and losses are converted to the sterling. If a EUR/USD position is closed out with a profit in USD by a British bank, then the rate-to-base will be expressed as a GBP/USD rate. This ambiguity leads many market participants to use the expressions currency 1 (CCY1) and currency 2 (CCY2), where one unit of CCY1 equals the quoted number of units of CCY2.

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Famous quotes containing the words base and/or currency:

    When a man speaks the truth in the spirit of truth, his eye is as clear as the heavens. When he has base ends, and speaks falsely, the eye is muddy and sometimes asquint.
    Ralph Waldo Emerson (1803–1882)

    There is no legislation—I care not what it is—tariff, railroads, corporations, or of a general political character, that all equals in importance the putting of our banking and currency system on the sound basis proposed in the National Monetary Commission plan.
    William Howard Taft (1857–1930)