The difference between the bid price and the asking price is spread. Broker detects this commission or spread when a trader opens a trading position. And this spread is the income of a broker. There are many brokers available in the field of forex and charge low spread so always choose a broker with a low spread.

In financial markets, the spread refers to the difference between the buying (bid) and selling (ask) prices of a security, such as stocks, bonds, or currency pairs. It is essentially the cost of executing a trade and represents the market maker's profit margin. The spread reflects the liquidity and volatility of the asset, with tighter spreads typically indicating higher liquidity and lower transaction costs.

A narrow spread is favorable for traders as it minimizes the cost of entering or exiting a position. On the other hand, wider spreads can be found in less liquid or more volatile markets, making it more expensive for traders to trade. Understanding and monitoring spreads is crucial for investors, as it directly influences the overall cost of trading and can impact the profitability of a transaction. Tight spreads are generally sought after by traders, as they contribute to more efficient and cost-effective market participation.