MetricIntermediate
Fill Ratio
syn. Fill Rate
The percentage of an order that is successfully executed, calculated as filled volume divided by total requested volume.
Last updated: February 1, 2026
1
A trade order is submitted for a specific volume at a specific price.
2
The execution system attempts to fill the entire order at the best available prices.
3
If full volume is available, the order is completely filled (100% fill ratio).
4
If only partial volume is available, the order is partially filled, and the fill ratio is less than 100%.
5
Fill ratio is tracked over time as a key execution quality metric.