A position that appreciates in value if market price increases. When the base currency in the pair is bought, the position is said to be long. This position is taken with the expectation that the market will rise.

The price at which the market is prepared to buy a product. Prices are quoted two-way as Bid/Ask. In FX trading, the Bid represents the price at which a trader can sell the base currency, shown to the left in a currency pair. For example, in the quote USD/CHF 1.4527/32, the base currency is USD, and the Bid price is 1.4527, meaning you can sell one US Dollar for 1.4527 Swiss francs. In CFD trading, the Bid also represents the price at which a trader can sell the product. For example, in the quote for UK OIL 111.13/111.16, the Bid price is £111.13 for one unit of the underlying market.*

Taking a long position on a product.

A Contract for Difference (or CFD) is a type of derivative that gives exposure to the change in value of an underlying asset (such as an index or equity). It allows traders to leverage their capital (by trading notional amounts far higher than the money in their account) and provides all the benefits of trading securities, without actually owning the product. In practical terms, if you buy a CFD at $10 then sell it at $11, you will receive the $1 difference. Conversely, if you went short on the trade and sold at $10 before buying back at $11, you would pay the $1 difference.

The price at which a product was traded to close a position. It can also refer to the price of the last transaction in a day trading session.