Spread

The spread is the difference between the bid price (what buyers are willing to pay) and the ask price (what sellers are asking) for a financial instrument. In forex trading this gap represents the cost of entering a position and is typically measured in pips. A tighter spread indicates higher liquidity and lower transaction cost, while a wider spread often occurs during periods of low market activity or high volatility. Understanding how spreads behave helps traders assess the true expense of each trade and choose optimal times to open or close positions.

How It Works

When a trader views a currency pair on a platform such as MetaTrader 5, two numbers appear: the bid on the left and the ask on the right. The spread is calculated by subtracting the bid from the ask. For example, if EUR/USD shows a bid of 1.1050 and an ask of 1.1052, the spread equals 0.0002, or two pips. Brokers may offer fixed spreads, which remain constant regardless of market conditions, or variable spreads that fluctuate with liquidity. STB Provider, as an STP/NDD broker, routes orders directly to liquidity providers, allowing the spread to reflect real‑time market depth.

Why It Matters for Traders

The spread directly affects profitability because it is an implicit commission paid on every trade. A wider spread means the price must move further in the trader’s favor just to break even. Scalpers and day traders, who rely on small price movements, are especially sensitive to spread size. Conversely, long‑term position traders may tolerate a slightly wider spread if it comes with better execution quality or lower swap costs. Monitoring spread changes also provides insight into market conditions; sudden widening can signal upcoming news events or reduced liquidity, prompting traders to adjust risk exposure.

Example

Assume a trader buys one standard lot (100,000 units) of GBP/USD at an ask of 1.3000 with a bid of 1.2998, resulting in a two‑pip spread. The entry cost is 100,000 × 0.0002 = $20. If the price later rises to 1.3020 and the trader closes at the bid, the gross profit is 100,000 × 0.0020 = $200. Subtracting the $20 spread cost leaves a net profit of $180. Had the spread been four pips, the entry cost would double to $40, reducing net profit to $160. This illustrates how even small spread variations can impact returns, particularly for high‑frequency strategies.

Key Takeaways

• The spread is the bid‑ask difference and represents the transaction cost of a trade.
• Variable spreads reflect real‑time liquidity; fixed spreads offer predictability but may be higher during calm markets.
• Tighter spreads benefit short‑term traders by lowering the price movement needed to become profitable.
• Monitoring spread changes helps traders gauge market conditions and adjust risk management accordingly.