Instant execution is an order fulfillment model that attempts to fill a trade at the exact price the trader requested, rejecting the order with a requote if that price is no longer available. It prioritizes price certainty over guaranteed fill, as this FXM680 guide explains.
Table of Contents
What Is Instant Execution? An In-Depth Overview
Instant execution attempts to fill an order at exactly the price the trader submitted, without accepting a different price even if the market has moved slightly since submission. If that exact price is no longer available, the broker issues a requote instead.
This model gives traders price certainty when the order does fill, since there is no slippage on a successfully executed instant execution order.
Instant execution was historically more common on market maker and dealing desk broker models, though it remains available on various account types today.
Why Instant Execution Matters for Traders
Traders who want absolute certainty about their entry price, without any risk of slippage, may prefer instant execution, accepting the trade-off of possible requotes during fast market movement.
Understanding instant execution also helps traders anticipate requote frequency, particularly around volatile periods, and adjust order timing or type accordingly.
Detailed Analysis of Instant Execution Behavior
Requote Mechanics
When price moves between order submission and processing, instant execution rejects the original request and offers a new price, which the trader must then accept or decline manually.
Zero Slippage on Fills
Because instant execution only fills at the exact requested price, any order that does execute carries no slippage by definition, unlike market execution.
Volatility Sensitivity
Requotes become more frequent during high volatility, when prices move rapidly enough that the originally requested price is often no longer available by the time the order reaches the server.
| Feature | Instant Execution | Market Execution |
|---|---|---|
| Price Certainty | High, exact price or requote | Lower, can slip |
| Requotes | Common during volatility | Rare |
| Fill Reliability | Can fail during fast moves | High |
Step-by-Step Guide to Working With Instant Execution
- Submit orders during calmer market conditions when possible to reduce requote frequency.
- Be prepared to quickly accept or decline a requoted price if one appears.
- Consider whether market execution might better suit strategies sensitive to fill reliability.
- Monitor requote frequency over time to evaluate whether the broker’s instant execution performs well.
- Adjust expectations around major news events, when requotes are especially likely.
Common Pitfalls to Avoid
A common pitfall is relying on instant execution during high-volatility news events, where frequent requotes can cause missed entries at critical moments. Another is not understanding why an order was rejected, mistaking a requote for a technical error rather than normal instant execution behavior.
Frequently Asked Questions
Does instant execution ever produce slippage? No, by definition it either fills at the exact requested price or is rejected with a requote, never filling at a different price silently.
Is instant execution still common today? It remains available on many platforms, though market execution has become increasingly standard, particularly on ECN and STP accounts.
Can a trader avoid requotes entirely? Not entirely, though trading during calmer periods and avoiding major news windows can reduce their frequency.
Continue Your Forex Learning Journey with FXM680
Instant execution completes the picture of the two core execution models in forex trading. The next lessons in this Academy explore requotes and slippage in direct, focused detail.
Disclaimer: The content provided on this page is for informational and educational purposes only. Trading financial markets involves significant risk. Consult with a certified financial advisor before making any investment decisions.
Keep Learning
Understand Every Execution Trade-Off
Instant execution trades fill certainty for price precision. Explore the full FXM680 Forex Academy to master every execution model.