Troubleshooting Orders That Are Immediately Canceled
Summary
A trading-system forum discussion concerns orders that receive an order number but immediately show as canceled, even though market data, login, and displayed funds appear available. The response proposes several checks: determine whether pre-trade risk controls are enabled and enforcing limits; verify the order price is within contract price bands; inspect interface documentation and logs for parameter errors; confirm available funds cover margin and fees; and check whether the contract is currently tradable.
These are plausible diagnostic categories rather than a confirmed explanation for the reported case. The thread provides no logs, exchange rejection message, contract details, or follow-up confirming a resolution. A trader can use the checklist to narrow down whether the issue comes from local risk controls, order parameters, account resources, interface requirements, or contract status, but should rely on the specific rejection details to identify the cause. The discussion does not describe a systematic test or establish that any proposed cause applies generally.
Key ideas
- An order identifier does not establish that an order has been accepted by the venue.
- Pre-trade risk rules can cancel orders that exceed configured limits.
- Price bands, interface parameter requirements, and contract trading status can block submissions.
- Displayed account funds may differ from funds available after margin and fees are considered.
- The forum offers hypotheses but no rejection logs or confirmed resolution.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.