In forex trading, a spread is the difference between the bid price and the ask price of a currency pair. When you trade EUR/USD, for example, you'll see two prices: the bid (what the market will pay you) and the ask (what you must pay to buy). The spread is the gap between these two prices, measured in pips (the smallest price movement in a currency pair). This spread is how your broker makes money and represents a real cost you pay every time you open a position.
How It Works
Spreads operate on a simple principle: brokers buy currency at one price and sell it to you at a slightly higher price. When you enter a trade, you're immediately at a small disadvantage equal to the spread amount. For example, if EUR/USD is trading at 1.0850 bid and 1.0852 ask, the spread is 2 pips. You must profit by more than 2 pips just to break even. Different currency pairs have different spreads—major pairs like EUR/USD typically have tighter (smaller) spreads of 1-3 pips, while exotic pairs might have spreads of 10+ pips. Market conditions also affect spreads; they widen during volatile periods or when markets are less liquid.
Why It Matters for Investors
For serious investors, spreads directly impact profitability. Wider spreads mean higher trading costs, which reduce your returns, especially if you trade frequently. This is particularly important if you're considering currency trading as part of a diversified portfolio or using algorithmic trading strategies that execute multiple trades. When evaluating a forex broker, comparing spreads should be a top priority. Some brokers offer fixed spreads (consistent regardless of conditions), while others offer variable spreads (typically tighter but wider during volatility). Understanding spread structures helps you calculate true trading costs and choose the right broker for your investment strategy.
Example
Imagine you want to trade 100,000 euros against US dollars. The EUR/USD spread is 2 pips. If each pip is worth $10 on this lot size, the spread costs you $20 just to enter the trade. If you plan to make only a 20-pip profit, you're using 50% of your expected gains just to cover the spread cost. This illustrates why tight spreads matter—they preserve more of your profit potential and reduce the price movement you need to achieve positive returns.
Key Takeaways
- Spreads are the bid-ask difference and represent the cost of each trade you execute
- Major currency pairs have tighter spreads (lower costs) than exotic pairs
- Market volatility widens spreads, increasing your trading costs during uncertain periods
- Comparing spreads across brokers is essential for maximizing long-term trading profitability