Symbol Mapping
A Symbol Mapping message is used to map the 6 character multicast feed symbol field to an OSI symbol. These messages are sent continuously through the day at variable rates as bandwidth allows. Members who consume the Options Auction feed will be able to receive the full list of symbols in approximately 30 minutes.
| Field Name | Offset | Length | Type/(Value) | Description |
|---|---|---|---|---|
| Length | 0 | 1 | Binary | Length of this message including this field |
| Message Type | 1 | 1 | 0x2E | Symbol Mapping Message |
| Feed Symbol | 2 | 6 | Printable ASCII | Symbol right padded with spaces |
| OSI Symbol | 8 | 21 | Printable ASCII | OSI Symbol |
| Symbol Condition | 29 | 1 | Alphanumeric |
|
| Underlying | 30 | 8 | Alphanumeric | Symbol of underlying instrument right padded with spaces. |
| Total Length = 38 bytes | ||||