What Is a Spread in Trading? A Simple Guide

If you have ever opened a trading platform, you have probably noticed two different prices for the same asset, one for buying and another for selling. The difference between these prices is known as the spread. But what is a spread in trading, and why does it matter?

For beginners, this raises a common question: What does spread mean in trading? Simply put, it represents the gap between the buying and selling prices of an asset, making it an important part of trading costs.

Although spreads may seem small, they can influence your entry price, profitability and trading strategy. This guide explains how spreads work, why they exist, what affects them and how you can manage their costs.

What Does Spread Mean in Trading?

A spread is the difference between two related prices, rates or yields. In most everyday trading, however, the term refers to the bid-ask spread.

Bid price: The price at which you can sell an asset.

Ask price: The price at which you can buy an asset.

The difference between these two prices is the spread. In simple terms, a spread in trading means the price difference you encounter when buying or selling a financial instrument.

Example:

Suppose EUR/USD is quoted at:

Price	EUR/USD
Bid (Sell)	1.1000
Ask (Buy)	1.1002
Spread	0.0002 (2 pips)

If you buy EUR/USD at 1.1002 and immediately sell it at 1.1000, you would incur a loss equivalent to the spread, assuming market prices remain unchanged.

This explains why a newly opened trade typically shows a small unrealised loss. The market must move sufficiently in your favour to cover the spread before the position becomes profitable, excluding other fees.

Why Do Spreads Exist?

Spreads are a natural part of financial markets, reflecting differences between buying and selling prices.

Broker Compensation

Some brokers incorporate their fees into the spread instead of charging a separate commission. Others provide tighter spreads alongside commission-based pricing.

Market-Making Costs

Market makers and liquidity providers quote buying and selling prices to facilitate trading. Spreads help compensate them for supplying liquidity and managing price fluctuations.

Immediate Execution

Spreads also reflect the cost of executing trades at available market prices rather than waiting for another participant to accept your preferred price.

Think of exchanging currency at an airport. The exchange counter offers one rate when buying your currency and another when selling it. The difference between those rates works much like a trading spread.

How Is a Spread Measured?

In forex, spreads are commonly measured in pips, a standard unit used to measure currency price movements.

For most currency pairs, 1 pip equals 0.0001. For Japanese yen pairs, 1 pip typically equals 0.01.

For example, EUR/USD quoted at 1.1051 / 1.1053 has a spread of 2 pips, while USD/JPY quoted at 150.00 / 150.04 has a spread of 4 pips.

Other instruments, including shares, indices and commodities, may express spreads in price points, ticks or currency values.

Types of Spreads in Trading

When comparing trading conditions, you will generally encounter two main spread structures: fixed and variable.

Fixed Spread

Fixed spreads are designed to remain constant under specified trading conditions, regardless of minor market fluctuations.

Their main advantage is predictability, allowing traders to estimate transaction costs more easily. However, fixed spreads may be wider than variable spreads during periods of high liquidity.

Some brokers may also apply exceptions or execution restrictions during extreme market volatility.

Variable (Floating) Spread

Variable spreads change according to market conditions, particularly liquidity and volatility.

During active trading sessions, variable spreads can become very narrow as buying and selling activity increases.

However, they may widen significantly during major economic announcements or periods of low liquidity, making trading expenses less predictable.

Neither spread structure is necessarily better for every trader. The choice depends on trading frequency, preferred instruments and individual strategies.

What Affects the Size of a Spread?

Understanding what a spread in trading is also involves knowing why its size changes.

Several factors can influence whether a spread becomes narrower or wider.

Factor	Impact on Spreads
Liquidity	Highly liquid markets generally have tighter spreads because more buyers and sellers are active.
Volatility	Sharp price movements and uncertainty can cause spreads to widen.
Asset Type	Major forex pairs often have narrower spreads than less frequently traded currency pairs.
Trading Hours	Spreads are often tighter during active trading sessions, particularly when major markets overlap.
Economic News	Important announcements can temporarily widen spreads as market participants adjust their prices.

For example, EUR/USD often benefits from strong liquidity during the London and New York session overlap. However, spreads can widen around major announcements, such as US employment data or Federal Reserve interest rate decisions.

Therefore, traders should consider not only the minimum advertised spread but also how pricing behaves under different market conditions.

How to Calculate the Cost of a Spread

Now that you understand what a spread in trading is, the next step is calculating how much it costs when placing a trade.

For forex pairs with a known pip value, the calculation is straightforward:

Spread Cost = Spread (in pips) × Pip Value × Number of Lots

For currency pairs such as EUR/USD, where USD is the quote currency, typical pip values are:

• Standard lot (100,000 units): USD 10 per pip.
• Mini lot (10,000 units): USD 1 per pip.
• Micro lot (1,000 units): USD 0.10 per pip.

Pip values can differ depending on the currency pair and account currency.

Example: Calculating Spread Costs

Suppose GBP/USD is quoted at 1.2508 / 1.2511.

The spread is:

1.2511 − 1.2508 = 0.0003, or 3 pips.

If you trade 2 mini lots, with each mini lot worth USD 1 per pip:

Spread Cost = 3 × USD 1 × 2 = USD 6

For comparison, trading 1 standard lot with the same spread would cost:

Spread Cost = 3 × USD 10 = USD 30

This illustrates why position size matters. Even when the spread remains unchanged, larger positions result in higher spread costs.

For frequent traders, these expenses can accumulate across multiple transactions. The calculations above exclude commissions, slippage and other potential trading fees.

How to Reduce Spread Costs

Although spreads cannot always be avoided, understanding how they work can help traders manage expenses more effectively.

1. Trade During High-Liquidity Sessions

Major forex pairs often experience narrower spreads when trading activity is high, particularly during the London and New York session overlap.

2. Be Cautious Around Economic Announcements

Events such as inflation reports, employment data and central bank decisions can trigger volatility and temporarily widen spreads.

3. Compare Broker Trading Conditions

Look beyond advertised minimum spreads. Consider average spreads, commissions, execution quality and additional trading fees.

For example, Ultima Markets offers minimum spreads starting from 0.0 pips on selected ECN accounts, with separate commissions. Actual spreads vary depending on the instrument and market conditions.

4. Understand Different Order Types

Limit orders allow traders to specify acceptable execution prices, potentially helping control entry costs. However, they do not eliminate spreads or guarantee order execution.

5. Consider Your Trading Frequency

Spread costs are particularly important for scalping and short-term strategies involving frequent trades. For longer-term positions, overnight financing charges and other expenses may also influence total costs.

Conclusion

Understanding what a spread in trading is helps you recognise an important cost involved in buying and selling financial instruments. A narrower spread generally means lower transaction costs, while a wider spread requires a greater favourable price movement before a trade becomes profitable.

Whether you trade forex, commodities or indices, spreads can vary depending on liquidity, volatility and trading hours.

By comparing spreads alongside commissions and execution conditions, you can make more informed trading decisions and manage your overall trading expenses.

FAQ