American-style option – An option contract that may be exercised at any time before it expires.
Ask –The quoted price at which a customer can buy a currency pair. Also referred to as the ‘offer,’ ‘ask price,’ or ‘ask rate.’
Base Currency – For foreign exchange trading, currencies are quoted in terms of a currency pair. The first currency in the pair is the base currency. For example, in a USD/JPY currency pair, the US dollar is the base currency. Also may be referred to as the primary currency.
Bid – The quoted price where a customer can sell a currency pair. Also known as the 'bid price' or 'bid rate.'
Bid/Ask Spread – The point difference between the bid and ask (offer) price.
Currency pair – The two currencies that make up a foreign exchange rate. For example, USD/YEN is a currency pair.






