CFDs are complex instruments and have with a high risk of losing money rapidly due to leverage. 79% of retail investors lose money with this provider. Consider if you understand how CFDs work and if you can afford losing your money.
Bid and ask prices are determined by the maximum amount a buyer is willing to pay for a unit of a given asset and the minimum amount that a seller is willing to accept in order to sell it. The spread is the difference between these two figures.