- AllocGrp – 23 fields, 1 group, 1 nested component
- BidCompReqGrp – 8 fields, 1 group
- BidCompRspGrp – 16 fields, 1 group
- BidDescReqGrp – 12 fields, 1 group
- ContraGrp – 5 fields, 1 group
- ExecAllocGrp – 5 fields, 1 group
- InstrmtGrp – 20 fields, 1 group
- InstrmtMDReqGrp – 21 fields, 1 group
- InstrmtStrkPxGrp – 28 fields, 1 group
- IOIQualGrp – 2 fields, 1 group
- LinesOfTextGrp – 4 fields, 1 group
- ListOrdGrp – 73 fields, 1 group, 2 nested components
- MDFullGrp – 31 fields, 1 group
- MDIncGrp – 57 fields, 1 group
- MDReqGrp – 2 fields, 1 group
- MiscFeesGrp – 4 fields, 1 group
- MsgTypeGrp – 3 fields, 1 group
- OrdAllocGrp – 6 fields, 1 group
- OrdListStatGrp – 11 fields, 1 group
- PreAllocGrp – 3 fields, 1 group
- QuotCxlEntriesGrp – 21 fields, 1 group
- QuoteEntryAckGrp – 22 fields, 1 group
- QuoteEntryGrp – 37 fields, 1 group
- QuotReqGrp – 32 fields, 1 group
- QuotSetAckGrp – 22 fields, 1 group, 1 nested component
- QuotSetGrp – 23 fields, 1 group, 1 nested component
- RoutingGrp – 3 fields, 1 group
- StandardHeader – 27 fields
- StandardTrailer – 3 fields
- TrdgSesGrp – 2 fields, 1 group
- UnderlyingInstrument – 23 fields, 1 group
- UndInstrmtGrp – 23 fields, 1 group