Reduce Size Message Fields
Reduce Size messages are sent when a visible order on the Cboe book is partially reduced.
| Field Name | Offset | Length | Type/(Value) | Description |
|---|---|---|---|---|
| Length | 0 | 1 | Binary | Length of this message including this field |
| Message Type | 1 | 1 | 0x25 | Reduce Size message (long) |
| Time offset | 2 | 4 | Time Offset | Nanosecond offset from last unit timestamp |
| Order Id | 6 | 8 | Binary | Order Id of a previously sent Add Order message that has been reduced |
| Canceled Quantity | 14 | 4 | Binary | Number of shares/contracts canceled |
| Total Length = 18 bytes | ||||
| Field Name | Offset | Length | Type/(Value) | Description |
|---|---|---|---|---|
| Length | 0 | 1 | Binary | Length of this message including this field |
| Message Type | 1 | 1 | 0x26 | Reduce Size message (short) |
| Time offset | 2 | 4 | Time Offset | Nanosecond offset from last unit timestamp |
| Order Id | 6 | 8 | Binary | Order Id of a previously sent Add Order message that has been reduced |
| Canceled Quantity | 14 | 2 | Binary | Number of shares/contracts canceled |
| Total Length = 16 bytes | ||||