Articles

Why Forex Spreads Change During the Day

Sep 19, 2026

Forex spreads, the difference between the bid and ask price of a currency pair, are not static. They constantly fluctuate throughout the trading day due to a combination of market dynamics and scheduled events. Understanding these changes is crucial for traders to manage their costs and trading strategies effectively.

Understanding Spread Basics

A Forex spread is essentially the cost of a trade, representing the difference between the price at which you can buy (ask) and sell (bid) a currency pair. Brokers offering Electronic Communication Network (ECN) execution typically aim to provide competitive spreads by aggregating liquidity from multiple providers. However, even with robust liquidity, spreads can widen or tighten based on various factors.

Key Factors Influencing Spread Changes

Several primary drivers contribute to the dynamic nature of Forex spreads:

Market Liquidity

Liquidity is the ease with which an asset can be bought or sold without significantly affecting its price. In the Forex market, high liquidity means there are many buyers and sellers, leading to tighter spreads. Conversely, low liquidity results in wider spreads because there are fewer participants to match trades, making it more challenging to find favorable prices. Spreads are generally tighter during peak trading hours when major financial centers (like London and New York) overlap, and wider during off-peak hours or holidays.

Volatility

Market volatility refers to the rate and magnitude of price changes. High volatility, often triggered by significant economic news releases or unexpected geopolitical events, can cause spreads to widen. During such times, market makers and liquidity providers increase spreads to compensate for the higher risk of price gaps and rapid movements.

Economic News and Events

Scheduled economic announcements, such as interest rate decisions, inflation reports, or unemployment figures, can dramatically impact currency prices and, consequently, spreads. Leading up to and immediately following these high-impact events, spreads typically widen as traders anticipate significant price shifts and liquidity providers adjust their risk premiums.

Time of Day and Bank Rollover

The 24-hour nature of the Forex market means trading activity varies significantly by time zone. Spreads tend to be tighter during the overlap of major trading sessions when liquidity is highest. Conversely, during the transition between trading days, particularly around 00:00 EET (Eastern European Time), a phenomenon known as the bank rollover occurs. This period often sees a temporary decrease in market liquidity as banks and financial institutions reconcile their positions for the new trading day, leading to a noticeable widening of spreads. Some instruments may even experience a complete lack of liquidity during this time due to liquidity provider schedules, as highlighted by RannForex's contract specifications.

Brokerage Execution Model

The type of broker and their execution model also plays a role. ECN brokers, like RannForex, typically pass through raw interbank spreads, which are inherently variable. Other broker models might offer fixed spreads, but these often come with other costs or limitations.

Impact on Trading

Understanding why Forex spreads change allows traders to:

  • Plan Trades: Avoid trading during periods of significantly wide spreads, such as during major news events or the bank rollover, unless their strategy accounts for higher costs.
  • Manage Risk: Factor in potential spread widening when setting stop-loss and take-profit levels, as wider spreads can affect execution prices.
  • Optimize Costs: Choose to trade during times of higher liquidity for potentially tighter spreads and lower transaction costs. For more on trading costs, see our article on Forex Broker Spreads vs. Commissions.

By monitoring market conditions and being aware of scheduled events, traders can better navigate the dynamic landscape of Forex spreads.

Take part in the most transparent project in the history of Forex trading.

Top-notch technology from AMTS Solutions. The best trading conditions from RannForex. The reputation of Dmitry Rannev.