United States Dollar
a.k.a. USD, US dollar, Greenback, Buck
The world's dominant currency, on one side of the large majority of all forex trades.
The United States dollar (USD), nicknamed the greenback or buck, is the king of forex. It is on one side of the large majority of all currency trades, it is the world's main reserve currency, and most commodities, including oil, are priced in it.
Its value is driven heavily by the Fed's interest-rate path, US economic data and global risk mood. In a crisis, the dollar usually rises as the world scrambles for the most liquid money. Traders track its overall strength with the US Dollar Index.
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