> ## Documentation Index
> Fetch the complete documentation index at: https://docs.amberdata.io/llms.txt
> Use this file to discover all available pages before exploring further.

# BitMEX Volume Mapping Across All Datasets

## BitMEX Volume Mapping Across All Datasets — Feb 14, 2025

The `volume` field on BitMEX datasets reflects number of contracts—not base-asset volume.

### ⚙️ Conversion Details

* Customers must divide `volume` by `underlyingToPositionMultiplier` (from Reference endpoint) to calculate base-asset volume.

### 🧪 Example

Use `includeOriginalReference=true` to get relevant multiplier and apply conversion manually.

### 🔧 Current Behavior

No change to data pipeline. This formula must be applied externally to get accurate volumes.