Immediate or Cancel Order (IOC) in Forex
A clear definition of Immediate or Cancel Order (IOC), with practical context for reading markets and making better trading decisions.
Definition
An Immediate or Cancel (IOC) order attempts to execute as much of the requested quantity as possible immediately, then cancels any unfilled remainder. Unlike a Fill or Kill order, an IOC can accept a partial fill.
How It Works
Orders are instructions, and their exact behavior depends on the conditions attached to them: price, quantity, timing, and what should happen if execution is only partly available. Before confirming an order, read the order type and validity fields rather than assuming every instruction behaves like a market order.
Why It Matters
This matters because two orders aimed at the same market can produce very different outcomes. Level 2 treats order mechanics as a safety skill: configure the instruction you actually intend, then review it before submission.
Key Takeaway
An Immediate or Cancel (IOC) order attempts to execute as much of the requested quantity as possible immediately, then cancels any unfilled remainder.
Practical forex example
Why Immediate or Cancel Order (IOC) matters
Understanding Immediate or Cancel Order (IOC) helps traders interpret market information, plan decisions, and manage risk with more context.
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