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Forex Spread Explained: Understanding Bid-Ask Spreads

The spread is one of the most important costs in forex trading, yet many traders overlook it. Understanding how spreads work and how to minimize them can significantly impact your trading profitability. This guide explains everything you need to know about forex spreads.

What is the Spread in Forex?

The spread is the difference between the bid price (what buyers pay) and the ask price (what sellers receive) for a currency pair. It represents the cost of executing a trade and is how most forex brokers make money.

Key concept: Every time you enter a trade, you start at a small loss equal to the spread. If EUR/USD has a 1 pip spread, you need the price to move 1 pip in your favor just to break even. This is why tighter spreads mean lower trading costs.

Understanding Bid and Ask Prices

Every forex quote shows two prices:

Bid Price

The bid is the price at which you can sell the base currency. This is always the lower of the two prices.

Ask Price

The ask (or offer) is the price at which you can buy the base currency. This is always the higher of the two prices.

Example: EUR/USD Quote

Bid: 1.0850 | Ask: 1.0852

How Spread Affects Your Trading

The spread impacts your trading in several ways:

Immediate Cost

When you open a trade, you immediately face a loss equal to the spread. For example, with a 2 pip spread on EUR/USD (standard lot), you start the trade down $20.

Breakeven Point

The price must move in your favor by at least the spread amount before you start making profit.

Cumulative Impact

For active traders who make many trades, spread costs add up quickly. A day trader making 10 trades per day with a 2 pip spread pays 20 pips daily in spread costs.

Spread Cost Calculation

Trader making 200 trades per month:

This is $3,600 you need to make just to break even!

Types of Spreads

Forex brokers offer different spread types:

Fixed Spreads

Fixed spreads remain constant regardless of market conditions. They provide predictability but are typically wider than variable spreads during normal conditions.

Variable Spreads

Variable (or floating) spreads change based on market conditions, liquidity, and volatility. They can be very tight during normal trading but widen significantly during volatile periods.

What Affects Spread Size?

Several factors determine how wide or tight spreads are:

Currency Pair Liquidity

Major pairs like EUR/USD have the tightest spreads (0.1-1 pip) because they have the most trading volume. Exotic pairs can have spreads of 50-100 pips or more.

Market Volatility

During high volatility, spreads widen as brokers manage their risk. News announcements, economic data releases, and unexpected events cause spread widening.

Time of Day

Spreads are tightest during overlapping trading sessions when liquidity is highest. They widen during quiet periods like late Sunday evening.

Broker Type

Typical Spreads by Currency Pair

Here are average spreads under normal market conditions:

Spreads vs Commissions

Some brokers charge commissions instead of (or in addition to) spreads:

Spread vs Commission Comparison

Broker A (Spread Only):

Broker B (Raw Spread + Commission):

Broker B is cheaper despite charging commission!

When Spreads Widen

Be aware of these situations when spreads typically increase:

How to Minimize Spread Costs

Follow these tips to reduce your spread expenses:

Track Your Spread Costs

Pro Trader Dashboard calculates your total spread and commission costs across all trades. See exactly how much spreads are costing you and which pairs offer the best value.

Try Free Demo

Summary

The spread is the primary cost of forex trading and represents the difference between buy and sell prices. Fixed spreads offer predictability while variable spreads offer tighter pricing during normal conditions. Major pairs have the tightest spreads, and spreads widen during volatile periods and low liquidity times. To minimize costs, trade liquid pairs during peak hours and compare broker pricing carefully. Understanding spreads is essential for calculating true trading costs and maintaining profitability.

Ready to learn more? Check out our guide on forex trading sessions or learn about currency pairs.