Bid ask spread forex is an important topic worth understanding. The bid-ask spread in forex is the difference between the price at which you can sell a currency pair (bid) and the price at which you can buy it (ask). This spread represents the primary transaction cost in forex trading and serves as compensation for brokers and liquidity providers. A tighter spread means lower trading costs, while a wider spread increases the cost of each trade.

How It Works

Every forex quote displays two prices. The bid price is what the market pays you when you sell, and the ask price is what you pay when you buy. The ask is higher than the bid, and that gap is the spread.

For example, if EUR/USD is quoted at 1.0850/1.0852, the bid is 1.0850 and the ask is 1.0852. The spread is 2 pips. If you open a buy trade at 1.0852, the price must rise at least 2 pips to 1.0854 before you break even, because you would sell at the bid of 1.0852.

Spreads vary depending on several factors:

Liquidity: Major pairs like EUR/USD, USD/JPY, and GBP/USD have tight spreads (typically 0.5–2 pips) because they attract massive trading volume. Exotic pairs like USD/TRY or USD/ZAR often carry spreads of 15–50 pips due to lower liquidity.

Market conditions: During high-impact news releases, spreads widen sharply as liquidity providers pull back. A pair that normally shows a 1-pip spread can balloon to 8–15 pips during events like Non-Farm Payrolls or central bank rate decisions.

Trading session overlap: The London-New York overlap (12:00–16:00 UTC) offers the tightest spreads due to peak liquidity. Spreads tend to widen during the late New York or early Asian session when fewer participants are active.

Broker model: ECN/STP brokers pass raw interbank spreads (sometimes 0.0–0.3 pips) and charge a separate commission. Market maker brokers embed their profit into a fixed or variable markup on the spread.

For a trader executing 20 round-trip trades per month on EUR/USD at 1.5 pips per trade with a standard lot (100,000 units), the monthly spread cost equals approximately $300. This makes spread awareness essential for profitability calculations.

Common Misconceptions

"Zero-spread accounts have no trading costs." Zero-spread accounts charge commissions per lot instead. The total cost (spread plus commission) on these accounts is sometimes higher than standard spread accounts, depending on the broker.

"The spread is fixed throughout the day." Even brokers advertising fixed spreads widen them during extreme volatility or low-liquidity periods. True fixed spreads across all conditions are rare.

"Spreads only matter for scalpers." While scalpers feel the impact more acutely, swing traders and position traders who enter and exit multiple positions accumulate significant spread costs over time. A 3-pip spread on 50 trades per year with standard lots equals $1,500 in costs.

"A tight spread means a trustworthy broker." Some brokers advertise ultra-tight spreads but compensate through slippage, requotes, or poor execution quality. Total execution cost matters more than the displayed spread alone.

Quick Reference

  • The bid-ask spread is calculated as: Ask Price − Bid Price
  • Major pairs typically carry spreads of 0.5–2 pips; exotics range from 15–50+ pips
  • Spreads widen during news events, low-liquidity sessions, and market open/close periods
  • Compare total trading costs (spread + commission + slippage) rather than spread alone
  • One pip on a standard lot of EUR/USD equals approximately $10 in spread cost

Related Questions

What is the difference between ECN and market maker spreads in forex?

How do you calculate trading costs in forex?

What are the most liquid currency pairs with the tightest spreads?

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