Requested Price vs Execution Price in Forex Trading

In Forex trading, understanding the difference between the requested price and the execution price is crucial for managing expectations and trading outcomes. While a trader typically aims for a specific price when placing an order, the market's rapid movement and the mechanics of order fulfillment mean the actual price at which the trade is completed can sometimes differ. This discrepancy is a common aspect of trading, especially in fast-moving markets.

What is the Requested Price?

The requested price is the price a trader specifies or anticipates when placing an order. For a limit order, it is the exact price set by the trader at which they wish to buy or sell. For a market order, the requested price is generally the prevailing Bid or Ask price displayed on the trading platform at the moment the order is submitted. For instance, when placing a buy market order, a trader might see the current Ask price and expect their order to be filled at or very close to that price. Similarly, for a sell market order, the Bid price is the reference point.

Charts on the MetaTrader platform typically display the Bid price. Buy orders are executed at the Ask price, and sale orders at the Bid price. The desired price is what the trader aims for based on their analysis and the current market view.

What is the Execution Price?

The execution price, also known as the fill price, is the actual price at which a trading order is completed. This is the price confirmed by the broker after the order has been processed by their liquidity providers. In an ECN environment, once an order is sent to a liquidity provider, the server waits for a response and confirms execution at the price received in the execution report. This real execution price may differ from the initial requested price.

Understanding Slippage: Why Prices Differ

The primary reason for a difference between the requested and execution price is a phenomenon known as slippage. Slippage occurs when an order is executed at a price different from the one requested or displayed at the time of order submission. This can happen in both positive and negative directions:

• Negative Slippage: The order is executed at a less favorable price than requested. For a buy order, this means a higher price; for a sell order, a lower price.
• Positive Slippage: The order is executed at a more favorable price than requested. For a buy order, this means a lower price; for a sell order, a higher price.

Causes of Slippage

Several factors contribute to slippage:

• Market Volatility: During periods of high market volatility, prices can change very rapidly. By the time an order travels from the trader's platform to the broker's server and then to the liquidity provider for execution, the price may have moved away from the requested level.
• Execution Speed: Even with fast execution systems, there's always a minuscule time lag between the moment a trader clicks "buy" or "sell" and when the order is actually filled. In a dynamic market, this short delay can be enough for prices to shift.
• Liquidity: Insufficient liquidity for a particular currency pair or at a specific price level can also lead to slippage. If there aren't enough willing buyers or sellers at the requested price, the order may be filled at the next available price.
• Order Type: Different order types are susceptible to slippage in varying ways.

Slippage and Order Types

Market Orders

Market orders are instructions to buy or sell immediately at the best available current market price. Because they prioritize speed of execution over a specific price, market orders are particularly prone to slippage. When a market order is sent, the system seeks to fill it at the best price from available liquidity providers at that precise moment. If the market moves during this process, the execution price can diverge from the price initially seen.

Stop Orders

Stop orders (e.g., Stop Loss, Stop Buy, Stop Sell) are activated when the market reaches a specified price. Once activated, a stop order typically converts into a market order. Consequently, like market orders, stop orders can experience slippage, especially in volatile conditions. For example, if a Stop Loss order is triggered during a sharp market move, the actual execution price might be worse than the stop price.

Limit Orders

Limit orders are instructions to buy or sell at a specific price or better. A buy limit order will only execute at the specified limit price or lower, while a sell limit order will execute at the specified limit price or higher. This means limit orders generally protect traders from negative slippage; they will either be filled at the requested price or a more favorable one, or not at all. For example, RannForex's trading terms state that the real execution price for a pending limit order may differ from the price in the order for the better only. In the case of stop orders, the real execution price may differ from the price in the order.

Understanding these distinctions is vital for traders using any order type. For more details on order execution, you can review our trading terms or explore articles such as What Is Execution Price in Forex Trading?

Conclusion

The difference between the requested price and the execution price is a fundamental concept in Forex trading, primarily explained by slippage. While traders always aim for their requested price, market realities such as volatility and liquidity can lead to orders being filled at a slightly different price. By understanding these dynamics and the behavior of various order types, traders can better manage their risk and expectations in the fast-paced Forex market.