What Is a Good Spread for Forex? Understanding Spreads in Currency Trading

What Does Spread Mean in Forex Trading?

When exploring what forex trading is and how it works, one of the first concepts you will encounter is that of ‘spread’. In simple terms, the spread means the difference between the price at which you can buy a currency pair (the ask price) and the price at which you can sell it (the bid price).

Think of it like exchanging currency at an airport bureau de change. You will notice two different rates displayed: one for buying foreign currency and another, less favourable rate, for selling it back. The gap between these two prices is how the exchange service earns its margin. Forex spreads work on the same principle, though the gaps are typically much smaller.

How the Bid-Ask Spread Works

Every currency pair is quoted with two prices. The bid price represents what buyers are currently willing to pay, while the ask price represents what sellers are willing to accept. As a trader, you buy at the ask price (the higher figure) and sell at the bid price (the lower figure).

For example, if EUR/USD is quoted at 1.0850/1.0852, the bid is 1.0850 and the ask is 1.0852. If you opened a buy position at 1.0852, you would immediately be 2 pips in the negative because you could only sell at 1.0850. The market would need to move at least 2 pips in your favour before you reached breakeven.

This spread exists because market makers and liquidity providers need compensation for facilitating trades and taking on risk. Without this mechanism, there would be no incentive to provide the liquidity that allows markets to function.

Fixed vs Variable Spreads

Forex spreads come in two main varieties:

Fixed spreads remain constant regardless of market conditions. They provide predictability, which some traders find useful for planning and cost calculation. However, fixed spreads are typically wider than variable spreads under normal market conditions to compensate the broker for absorbing volatility risk.

Variable spreads, also called floating spreads, fluctuate based on market conditions. During periods of high liquidity and calm markets, variable spreads can be very tight. However, they widen during volatile periods, news events or when liquidity decreases.

How to Calculate Forex Spreads

Understanding how spreads are measured and calculated helps you compare costs across different pairs and assess their impact on your trading.

Measuring Spreads in Pips

Spreads are typically measured in pips. A pip (percentage in point) represents the smallest standard price movement in most currency pairs. For pairs quoted to four decimal places, one pip equals 0.0001. For pairs involving the Japanese yen (quoted to two decimal places), one pip equals 0.01.

Many brokers now quote prices to an additional decimal place, called a pipette or fractional pip. This is one-tenth of a pip, allowing for more precise pricing.

To find the spread, simply subtract the bid price from the ask price:

Spread = Ask Price - Bid Price

If EUR/USD is quoted at 1.08502/1.08520, the spread is:

1.08520 - 1.08502 = 0.00018, which equals 1.8 pips.

Worked Example: Calculating Spread Costs

The monetary value of a spread depends on your position size. This is where understanding what a lot is in forex becomes relevant. In forex, a standard lot equals 100,000 units of the base currency. A mini lot is 10,000 units and a micro lot is 1,000 units.

Take the following hypothetical example for illustration:

Assume you trade EUR/USD with a 1.5 pip spread. The pip value for EUR/USD when trading in US dollars is approximately:

• Standard lot (100,000 units): roughly $10 per pip

• Mini lot (10,000 units): roughly $1 per pip

• Micro lot (1,000 units): roughly $0.10 per pip

Therefore, the spread cost for the above example would be approximately:

These figures are hypothetical and for illustration purposes only. Actual pip values vary depending on your account currency and current exchange rates.

What Is Considered a Good Spread in Forex?

Defining a good spread depends heavily on which currency pair you are trading. Major pairs naturally have tighter spreads than so-called exotic pairs due to differences in liquidity and trading volume.

Typical Spreads for Major Currency Pairs

Major pairs involve the most traded currencies globally and generally offer the tightest spreads. These pairs include combinations of the US dollar with the euro, British pound, Japanese yen, Swiss franc, Canadian dollar, Australian dollar and New Zealand dollar.

For the most liquid pair, EUR/USD, spreads can range from around 0.1 pips on variable spread accounts during optimal conditions to approximately 2 pips on fixed spread accounts or during less liquid periods. Under normal market conditions, many traders would consider a spread of 1 pip or less on EUR/USD to be competitive.

These ranges are indicative only and vary between brokers, account types and market conditions. They should not be taken as guaranteed or typical of any specific provider.

Spreads on Minor and Exotic Pairs

Minor pairs (also called crosses) do not include the US dollar but involve other major currencies. Examples include EUR/GBP, GBP/JPY and AUD/NZD. These pairs typically have wider spreads than majors, often ranging from 1 to 5 pips depending on the specific pair and conditions.

Exotic pairs combine a major currency with a currency from an emerging or smaller economy, such as USD/ZAR (South African rand), EUR/TRY (Turkish lira) or GBP/MXN (Mexican peso). Spreads on exotic pairs can be substantially wider, sometimes exceeding 20 pips or more. This reflects lower liquidity, higher volatility and greater risk for liquidity providers.

Factors That Affect Forex Spreads

Spreads are not static. Several factors cause them to widen or tighten throughout the trading day and across different market environments.

Market Liquidity and Trading Sessions

The forex market operates 24 hours during weekdays, but liquidity varies depending on which financial centres are open. The highest liquidity typically occurs during the overlap between the London and New York sessions, often between 1pm and 5pm UK time, when the volume of transactions tends to be highest (this overlap may change during Daylight Saving Time, when clocks go forward an hour). During these hours, spreads on major pairs tend to be at their tightest.

Conversely, during quieter periods such as the late Asian session or early morning hours in Europe, liquidity decreases and spreads often widen. Weekend gaps can also occur when markets reopen on Sunday evening, potentially affecting positions held over the weekend.

Economic Events and Volatility

Major economic releases and news events can cause significant spread widening. Interest rate decisions, employment reports, inflation data and geopolitical developments often lead to rapid price movements and reduced liquidity as market makers step back to manage their risk.

For example, during a central bank interest rate announcement, spreads that are normally 1 pip might temporarily widen to 5 pips or more. This is particularly relevant for practitioners of risk management in forex, as unexpected spread widening can affect stop-loss execution and overall trade costs.

Broker Type and Account Structure

Different broker models and account types offer varying spread structures:

Market makers typically offer fixed spreads and act as the counterparty to your trades. Their spreads may be wider but more predictable.

ECN (Electronic Communication Network) and STP (Straight Through Processing) brokers often provide variable spreads sourced directly from liquidity providers. These can be very tight but fluctuate more with market conditions. Many such accounts charge a separate commission alongside the spread.

Some brokers offer different account tiers with varying spread structures. Raw spread or zero spread accounts may advertise spreads starting from 0.0 pips but typically charge commissions that effectively increase the overall transaction cost.

How Spreads Impact Your Trading Costs

Understanding spreads as a transaction cost helps you assess their real impact on your trading performance over time.

Understanding Spread as a Transaction Cost

Unlike commissions, which are often stated separately, spreads represent a built-in cost that you pay on every trade. This cost is realised immediately when you open a position, as you start at a slight loss equal to the spread.

For active traders who open and close many positions, spread costs can accumulate significantly. Consider that a trader placing 50 trades per month on EUR/USD, each time paying an average spread equivalent to 1 pip on a mini lot, would incur approximately $50 in spread costs monthly on those trades alone. This is a hypothetical illustration; actual costs depend on individual circumstances.

Spreads and Position Sizing

The relationship between spreads and your position sizing deserves careful consideration. Understanding what leverage is in forex is relevant here, as leverage allows you to control larger positions with less capital, which amplifies both potential gains and losses.

When using leverage, your spread cost relative to margin remains constant, but the spread cost relative to the position’s notional value also remains proportional. However, if you are trading with a small account and high leverage, spread costs can represent a larger percentage of your available margin, affecting how much room you have before facing a margin call.

Position sizing should account for spread costs alongside other factors such as stop-loss distance and overall risk management in forex strategies. Ignoring spread costs when calculating risk can lead to underestimating the true cost of each trade.

Evaluating Spreads: What UK Traders Should Consider

When assessing spreads as part of your broker evaluation or trading strategy review, consider the following points:

• Compare like with like. A broker advertising low spreads may charge separate commissions. Calculate the total transaction cost (spread plus commission, if applicable) to make meaningful comparisons.

• Consider the pairs you actually trade. If you primarily trade exotic pairs, the spread on EUR/USD matters less than the spreads on your preferred instruments.

• Test during different conditions. Demo accounts can help you observe how a broker’s spreads behave during news events and outside peak hours, not just during optimal conditions.

• Factor spreads into your strategy. If you trade short-term with small profit targets, spreads consume a larger percentage of each potential gain. Longer-term strategies may be less sensitive to minor spread differences.

Recognise that tight spreads alone do not guarantee success. Spreads are one cost component among many factors including execution quality, platform reliability and regulatory protection. A slightly wider spread from a well-regulated broker may represent better value than razor-thin spreads from a poorly regulated entity.

Remember that past spread performance does not guarantee future conditions. Spreads can and do change based on market conditions, broker policies and liquidity environments.

Summary: Key Points About Forex Spreads

• The spread is the difference between the bid and ask price of a currency pair, representing a transaction cost paid on every trade.

• Spreads are measured in pips. To calculate the spread, subtract the bid price from the ask price.

• What constitutes a good spread depends on the currency pair. Major pairs like EUR/USD typically have the tightest spreads, while exotic pairs have much wider spreads reflecting lower liquidity.

• Fixed spreads remain constant but are generally wider; variable spreads fluctuate and can be very tight during liquid periods but widen during volatility.

• Multiple factors affect spread width: market liquidity, trading session timing, economic events and broker type all play a role.

• Spread costs accumulate over time and should be factored into your overall trading cost analysis and risk management in forex planning.

• When evaluating spreads, consider total transaction costs, the instruments you trade and behaviour during various market conditions rather than focusing solely on advertised minimums.

• Forex trading carries significant risk. The cost of spreads is just one element to understand; the potential for losses, particularly when trading leveraged products, should always be your primary consideration when deciding whether forex trading is appropriate for your circumstances.