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## DeltaNeutralContract

| Field | Type | Description |
| ----- | ---- | ----------- |
| `conId` | `int32` | The unique contract identifier specifying the security. Used for Delta-Neutral Combo contracts. |
| `delta` | `double` | The underlying stock or future delta. Used for Delta-Neutral Combo contracts. |
| `price` | `double` | The price of the underlying. Used for Delta-Neutral Combo contracts. |