Width Update Message Fields (C1, C2, and EDGX Only)
The Width Update message is used to communicate opening quote width multiplier. This message will be sent in the event that the exchange decides to change the quote width multiplier on a per underlying basis. For complete details on the opening collars, see the Cboe Titanium U.S. Options Opening Process.
| Field Name | Offset | Length | Type/(Value) | Description |
|---|---|---|---|---|
| Length | 0 | 1 | Binary | Length of this message including this field. |
| Message Type | 1 | 1 | 0xD2 | Width Update Message |
| Time Offset | 2 | 4 | Time Offset | Nanosecond offset from last unit timestamp. |
| Underlying | 6 | 8 | Printable ASCII | Underlying right padded with spaces. |
| Width Type | 14 | 1 | Alphanumeric |
|
| Multiplier | 15 | 4 | Multiplier | Width multiplier |
| Total Length=19 bytes | ||||