Algorithmic systems
How do automated order routing systems manage execution queues on FIFO (First-In, First-Out) exchange match engines?
By Easy Money Scanner · Educational reference · Not investment advice
The short answer
Automated routing systems submit, queue, and manage orders within FIFO matching engines, prioritizing fills by price then time of order entry.
How it works
CME's standard matching algorithm for most contracts is first-in-first-out, so systems time submissions precisely to secure favorable queue position.
An example
Two equal-price orders fill in the sequence they were received.
Risk & limitations
Queue position can shift instantly amid high-frequency order cancellations.
Examples are hypothetical, not trade recommendations. US contract and regulatory references do not automatically apply in Canada. Rules, margin requirements and broker policies can change; confirm them with the relevant authority and your broker.