Requotes vs Slippage: Understanding Execution in Forex Trading

Understanding Requotes and Slippage

In the fast-paced world of Forex trading, understanding how your orders are executed is crucial. Two common phenomena that traders encounter are requotes and slippage. While both relate to a difference between the requested price and the eventual execution, they represent distinct mechanisms with different implications for your trading. This article will explain what requotes and slippage are, how they differ, and why they occur.

What is a Requote?

A requote occurs when a broker is unable to fill your order at the price you requested. Instead, they offer you a new price. This typically happens in market conditions where prices are moving rapidly, such as during major news announcements, or when there is insufficient liquidity at your requested price level. When you submit an order, the broker's system checks for the availability of that price. If the price has changed by the time your order reaches the broker, they will send you a requote, displaying the new available price. You then have a short window to either accept or reject this new price. If you reject it or the price moves again before you accept, the order is not executed.

Requotes are generally associated with 'instant execution' models, where the broker acts as a counterparty and offers a firm price. If that price is no longer valid, a requote is issued.

What is Slippage?

Slippage refers to the execution of a trade at a price different from the one requested. Unlike a requote, where you get a choice, slippage means your order is simply filled at the next available price in the market. This can happen with market orders, stop-loss orders, or take-profit orders, especially during periods of high volatility, low liquidity, or when a significant market gap occurs. For instance, if you place a market order to buy EUR/USD at 1.1000, but by the time your order reaches the liquidity provider and is filled, the best available price is 1.1002, your order has slipped by 2 pips. Slippage can be either negative (worse price) or positive (better price) from the trader's perspective, though negative slippage is more commonly discussed.

Slippage is a characteristic of 'market execution' models, where the broker aims to execute your order at the best available market price, even if it differs from your requested price. Understanding how a Forex market order is executed helps clarify this process.

Key Differences: Requotes vs. Slippage

The fundamental distinction between requotes and slippage lies in whether execution is guaranteed and at what price.

• Execution Guarantee: With a requote, execution is not guaranteed at your initial requested price. You must accept a new price or the trade is cancelled. With slippage, execution is guaranteed, but the price may differ from your request.
• Price Certainty: Requotes mean you never execute at the initial price if it's no longer available; you either accept a new price or no trade. Slippage means you execute, but the price might not be exactly what you saw.
• Trader Control: Requotes give you a choice to accept or reject the new price. Slippage means your order is filled automatically at the best available price, without an explicit acceptance step for the new price.
• Broker Model: Requotes are more common with instant execution, while slippage is inherent to market execution models, which often involve sending orders to liquidity providers.

Factors Causing Requotes and Slippage

Both requotes and slippage are often triggered by similar market conditions:

• High Volatility: Rapid price movements, especially during major economic news releases, make it difficult for brokers to guarantee a price or fill an order at an exact requested level.
• Low Liquidity: When there are fewer buyers or sellers in the market, large orders can move prices quickly, leading to slippage or making it harder to find a matching price for a requote.
• Network Latency: The time it takes for your order to travel from your platform to the broker's server and then to liquidity providers can result in price changes before execution.

Managing Requotes and Slippage

While requotes and slippage are part of trading, especially in volatile markets, traders can employ strategies to mitigate their impact:

• Limit Orders: Using limit orders allows you to specify the exact price at which you want your order to be filled. The downside is that your order may not be executed if the market never reaches your specified price.
• Understanding Execution Settings: Some trading platforms and brokers offer settings to manage slippage. For example, MetaTrader 5 often allows traders to set a maximum deviation for market orders, effectively turning them into a type of limit order with a slippage tolerance. If the slippage exceeds this preset value, the order might not be executed.

Ultimately, understanding the difference between requotes and slippage is key to setting realistic expectations for order execution and developing effective trading strategies in varying market conditions.