Forex glossary

Fill Ratio in Forex

A clear definition of Fill Ratio, with practical context for reading markets and making better trading decisions.

Level 2 · From Prices to PracticeOrders & execution

Definition

Definition

 

The fill ratio measures how much of submitted trading interest is successfully executed, commonly expressed as a percentage. It can refer to the share of orders filled or to the proportion of an individual order quantity that receives execution, depending on the context.

 

How It Works

 

Electronic markets separate the price you see, the instruction you send, and the final execution you receive. Available liquidity, order type, venue rules, and market movement can all affect what happens between those steps.

 

Why It Matters

 

This vocabulary lets you read a broker or platform screen accurately. The goal at Level 2 is mechanical literacy - knowing what a displayed price, order status, or execution record means - rather than predicting the market.

 

Key Takeaway

 

The fill ratio measures how much of submitted trading interest is successfully executed, commonly expressed as a percentage.

Practical forex example

A limit order is submitted for 100,000 units and 75,000 units execute before the order is cancelled. On a quantity basis, the fill ratio is 75%.

Why Fill Ratio matters

Understanding Fill Ratio helps traders interpret market information, plan decisions, and manage risk with more context.

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