Spread(finance)

That is defference between the best prices of sell and buy orders at the same time for any asset( stock; commodity; currency; futures; option). The main two types of spreads are floating and fixed.

Floating spread can change at any time depending on the situation. It is regulated by the actions of market makers, whose responsibilities include maintaining liquidity and ensuring relatively stable spread.

Fixed spread is a spread determined in advance by a contract between a trader and broker.