What are spreads in forex trading?

In forex trading, spreads represent the cost of entering a position and can vary depending on currency pair liquidity and market conditions. Every forex trade involves two prices — the bid price at which the market is willing to buy the base currency, and the ask price at which the market is willing to sell it. The spread is the difference between these two prices, and it is effectively the primary transaction cost that a forex trader pays each time they open a position.

Major currency pairs — such as EUR/USD, GBP/USD, and USD/JPY — typically offer the tightest spreads in the forex market because they are the most actively traded, attracting massive global participation from banks, institutions, and retail traders around the clock. Minor pairs, which include currencies of smaller economies paired with a major currency, generally carry slightly wider spreads due to lower trading volumes. Exotic pairs, which are combinations involving currencies from emerging or less frequently traded economies, tend to have the widest spreads, which reflects their limited liquidity and higher volatility.

Spread conditions in forex are not static and can change throughout the trading day. The most favourable spreads are usually available during peak liquidity hours, particularly when the London and New York trading sessions overlap. Outside of these windows, or during major economic announcements such as interest rate decisions or employment reports, spreads may widen as market uncertainty increases and liquidity providers adjust their pricing. For forex traders, understanding how spreads behave across different pairs and time periods is essential for managing costs effectively. Choosing to trade liquid pairs during active sessions and factoring spread costs into every trade setup are practical habits that can meaningfully improve overall trading performance.