CFDs are a leverage product and can involve a significant risk of loss. Trading CFDs may not be suitable for all, therefore you should ensure that you understand the risks involved and take into account your individual circumstances.
Trader's Glossary

What is Bid Price?

Market prices are quoted in pairs known as bid/ask. The bid is the price at which an underlying instrument can be sold at. So when trading on a currency pair, for instance EUR/USD, the bid price represents how much of the quote currency (in this case USD) a trader is able to get when selling a unit of the base currency (in this case the Euro). When listed as 1.32166 / 1.32184, the bid price for this currency pair is the first figure of 1.32166, meaning that selling 1 Euro will earn the seller $1.32166.