Options Auction Update Message Example
| Length | 40 | 64 bytes |
| Type | D1 | Options Auction Update |
| Time Offset | 18 D2 06 00 | 447,000 ns since last Time Message |
| CID | 43 30 30 30 31 32 20 20 | C00012 |
| Auction Type | 4F | RTH Opening |
| Reference Price | 00 00 00 00 00 00 00 00 | always zero |
| Buy Contracts | 64 00 00 00 | 100 Contracts |
| Sell Contracts | C8 00 00 00 | 200 Contracts |
| Indicative Price | E8 A3 0F 00 00 00 00 00 | $102.50 |
| Auction Only Price | 00 00 00 00 00 00 00 00 | always zero |
| Opening Condition | 00 | always zero |
| Composite Market Bid Price | 00 00 00 00 00 00 00 00 | always zero |
| Composite Market Offer Price | 00 00 00 00 00 00 00 00 | always zero |