FLEX Instrument Definition Message
| Length | 39 | 57 bytes |
| Type | 9C | Flex Instrument Definition |
| Time Offset | 18 D2 06 00 | 447,000 ns since last Time Message |
| Feed Symbol | 46 30 30 30 31 32 | F00012 |
| OSI Root | 31 41 41 50 4C 20 | 1AAPL |
| Year | 31 38 | 18 |
| Month | 31 31 | 11 |
| Day | 32 32 | 22 |
| Call/Put | 43 | C = Call |
| Dollar Strike | 00 00 32 30 37 | 00207 = $207 |
| Decimal Strike | 37 35 00 | 750 = $0.750 |
| Symbol Condition | 4E | N = Normal |
| Underlying | 41 41 50 4C 20 20 20 20 | AAPL |
| Exercise Style | 41 | American |
| Settlement Type | 50 | PM |
| Percentage | 00 00 00 00 | Not percentage pricing |
| Observation Day | 20 20 | No Observation Day |
| Return Cap | 00 00 00 00 | 250 = 2.5% Return cap |
| Creation Day | 20 20 | No Creation Day |
| Bit Fields | 00 | Not percentage pricing |