At BitMEX, we are committed to continually improving our platform and its infrastructure to support advanced trading capabilities for our users. As part of this ongoing effort, we are announcing an update to our REST and WebSocket APIs.
From 14 October 2025, a new field, strategy, will be added to the BitMEX Position table/endpoint.
Effective Date and Time: 14 October 2025 between 06:00 – 09:00 UTC
What is changing?
A new field, strategy, will be added to the response of the Position table (available via the /position REST API endpoint and WebSocket API).
For all current positions, this field will be populated with the default value: OneWay.
Please refer to a snippet example of position in REST API or WebSocket API below:
“account”: 1234567,
“symbol”: “XBTUSDT”,
“strategy”: “OneWay”,
Why are we making this change?
The addition of the strategy field is a necessary preparatory step for upcoming features.
This is an additive change, meaning it introduces a new field without removing any existing data. Most integrations should be unaffected.
If you have any questions about these upcoming changes, please contact Support.
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