| ◈ StandardHeader [Component] | | Y | MsgType = h (lowercase) | FIX.4.2 |
| 8 | BeginString | String | Y | FIX.4.4 (Always unencrypted, must be first field in message) | FIX.4.0 |
| 9 | BodyLength | Length | Y | (Always unencrypted, must be second field in message) | FIX.4.0 |
| 35 | MsgType | String | Y | (Always unencrypted, must be third field in message)
▶ 93 enum values
| Value | Name | Description |
| 0 | Heartbeat | Heartbeat | | 1 | TestRequest | Test Request | | 2 | ResendRequest | Resend Request | | 3 | Reject | Reject | | 4 | SequenceReset | Sequence Reset | | 5 | Logout | Logout | | 6 | IOI | Indication of Interest | | 7 | Advertisement | Advertisement | | 8 | ExecutionReport | Execution Report | | 9 | OrderCancelReject | Order Cancel Reject | | A | Logon | Logon | | B | News | News | | C | Email | Email | | D | NewOrderSingle | Order – Single | | E | NewOrderList | Order – List | | F | OrderCancelRequest | Order Cancel Request | | G | OrderCancelReplaceRequest | Order Cancel/Replace Request | | H | OrderStatusRequest | Order Status Request | | J | AllocationInstruction | Allocation Instruction | | K | ListCancelRequest | List Cancel Request | | L | ListExecute | List Execute | | M | ListStatusRequest | List Status Request | | N | ListStatus | List Status | | P | AllocationInstructionAck | Allocation Instruction Ack | | Q | DontKnowTrade | Don’t Know Trade (DK) | | R | QuoteRequest | Quote Request | | S | Quote | Quote | | T | SettlementInstructions | Settlement Instructions | | V | MarketDataRequest | Market Data Request | | W | MarketDataSnapshotFullRefresh | Market Data-Snapshot/Full Refresh | | X | MarketDataIncrementalRefresh | Market Data-Incremental Refresh | | Y | MarketDataRequestReject | Market Data Request Reject | | Z | QuoteCancel | Quote Cancel | | a | QuoteStatusRequest | Quote Status Request | | b | MassQuoteAcknowledgement | Mass Quote Acknowledgement | | c | SecurityDefinitionRequest | Security Definition Request | | d | SecurityDefinition | Security Definition | | e | SecurityStatusRequest | Security Status Request | | f | SecurityStatus | Security Status | | g | TradingSessionStatusRequest | Trading Session Status Request | | h | TradingSessionStatus | Trading Session Status | | i | MassQuote | Mass Quote | | j | BusinessMessageReject | Business Message Reject | | k | BidRequest | Bid Request | | l | BidResponse | Bid Response (lowercase L) | | m | ListStrikePrice | List Strike Price | | n | XMLNonFIX | XML message (e.g. non-FIX MsgType) | | o | RegistrationInstructions | Registration Instructions | | p | RegistrationInstructionsResponse | Registration Instructions Response | | q | OrderMassCancelRequest | Order Mass Cancel Request | | r | OrderMassCancelReport | Order Mass Cancel Report | | s | NewOrderCross | New Order - Cross | | t | CrossOrderCancelReplaceRequest | Cross Order Cancel/Replace Request (a.k.a. Cross Order Modification Request) | | u | CrossOrderCancelRequest | Cross Order Cancel Request | | v | SecurityTypeRequest | Security Type Request | | w | SecurityTypes | Security Types | | x | SecurityListRequest | Security List Request | | y | SecurityList | Security List | | z | DerivativeSecurityListRequest | Derivative Security List Request | | AA | DerivativeSecurityList | Derivative Security List | | AB | NewOrderMultileg | New Order - Multileg | | AC | MultilegOrderCancelReplace | Multileg Order Cancel/Replace (a.k.a. Multileg Order Modification Request) | | AD | TradeCaptureReportRequest | Trade Capture Report Request | | AE | TradeCaptureReport | Trade Capture Report | | AF | OrderMassStatusRequest | Order Mass Status Request | | AG | QuoteRequestReject | Quote Request Reject | | AH | RFQRequest | RFQ Request | | AI | QuoteStatusReport | Quote Status Report | | AJ | QuoteResponse | Quote Response | | AK | Confirmation | Confirmation | | AL | PositionMaintenanceRequest | Position Maintenance Request | | AM | PositionMaintenanceReport | Position Maintenance Report | | AN | RequestForPositions | Request For Positions | | AO | RequestForPositionsAck | Request For Positions Ack | | AP | PositionReport | Position Report | | AQ | TradeCaptureReportRequestAck | Trade Capture Report Request Ack | | AR | TradeCaptureReportAck | Trade Capture Report Ack | | AS | AllocationReport | Allocation Report (aka Allocation Claim) | | AT | AllocationReportAck | Allocation Report Ack (aka Allocation Claim Ack) | | AU | ConfirmationAck | Confirmation Ack (aka Affirmation) | | AV | SettlementInstructionRequest | Settlement Instruction Request | | AW | AssignmentReport | Assignment Report | | AX | CollateralRequest | Collateral Request | | AY | CollateralAssignment | Collateral Assignment | | AZ | CollateralResponse | Collateral Response | | BA | CollateralReport | Collateral Report | | BB | CollateralInquiry | Collateral Inquiry | | BC | NetworkCounterpartySystemStatusRequest | Network (Counterparty System) Status Request | | BD | NetworkCounterpartySystemStatusResponse | Network (Counterparty System) Status Response | | BE | UserRequest | User Request | | BF | UserResponse | User Response | | BG | CollateralInquiryAck | Collateral Inquiry Ack | | BH | ConfirmationRequest | Confirmation Request |
| FIX.4.0 |
| 49 | SenderCompID | String | Y | (Always unencrypted) | FIX.4.0 |
| 56 | TargetCompID | String | Y | (Always unencrypted) | FIX.4.0 |
| 115 | OnBehalfOfCompID | String | N | Trading partner company ID used when sending messages via a third party (Can be embedded within encrypted data section.) | FIX.4.0 |
| 128 | DeliverToCompID | String | N | Trading partner company ID used when sending messages via a third party (Can be embedded within encrypted data section.) | FIX.4.0 |
| 90 | SecureDataLen | Length | N | Required to identify length of encrypted section of message. (Always unencrypted) | FIX.4.0 |
| 91 | SecureData | data | N | Required when message body is encrypted. Always immediately follows SecureDataLen field. | FIX.4.0 |
| 34 | MsgSeqNum | SeqNum | Y | (Can be embedded within encrypted data section.) | FIX.4.0 |
| 50 | SenderSubID | String | N | (Can be embedded within encrypted data section.) | FIX.4.0 |
| 142 | SenderLocationID | String | N | Sender's LocationID (i.e. geographic location and/or desk) (Can be embedded within encrypted data section.) | FIX.4.1 |
| 57 | TargetSubID | String | N | "ADMIN" reserved for administrative messages not intended for a specific user. (Can be embedded within encrypted data section.) | FIX.4.0 |
| 143 | TargetLocationID | String | N | Trading partner LocationID (i.e. geographic location and/or desk) (Can be embedded within encrypted data section.) | FIX.4.1 |
| 116 | OnBehalfOfSubID | String | N | Trading partner SubID used when delivering messages via a third party. (Can be embedded within encrypted data section.) | FIX.4.0 |
| 144 | OnBehalfOfLocationID | String | N | Trading partner LocationID (i.e. geographic location and/or desk) used when delivering messages via a third party. (Can be embedded within encrypted data section.) | FIX.4.1 |
| 129 | DeliverToSubID | String | N | Trading partner SubID used when delivering messages via a third party. (Can be embedded within encrypted data section.) | FIX.4.0 |
| 145 | DeliverToLocationID | String | N | Trading partner LocationID (i.e. geographic location and/or desk) used when delivering messages via a third party. (Can be embedded within encrypted data section.) | FIX.4.1 |
| 43 | PossDupFlag | Boolean | N | Always required for retransmitted messages, whether prompted by the sending system or as the result of a resend request. (Can be embedded within encrypted data section.)
▶ 2 enum values
| Value | Name | Description |
| Y | PossibleDuplicate | Possible duplicate | | N | OriginalTransmission | Original transmission |
| FIX.4.0 |
| 97 | PossResend | Boolean | N | Required when message may be duplicate of another message sent under a different sequence number. (Can be embedded within encrypted data section.)
▶ 2 enum values
| Value | Name | Description |
| Y | PossibleResend | Possible resend | | N | OriginalTransmission | Original transmission |
| FIX.4.0 |
| 52 | SendingTime | UTCTimestamp | Y | (Can be embedded within encrypted data section.) | FIX.4.0 |
| 122 | OrigSendingTime | UTCTimestamp | N | Required for message resent as a result of a ResendRequest. If data is not available set to same value as SendingTime (Can be embedded within encrypted data section.) | FIX.4.0 |
| 212 | XmlDataLen | Length | N | Required when specifying XmlData to identify the length of a XmlData message block. (Can be embedded within encrypted data section.) | FIX.4.2 |
| 213 | XmlData | data | N | Can contain a XML formatted message block (e.g. FIXML). Always immediately follows XmlDataLen field. (Can be embedded within encrypted data section.)
See Volume 1: FIXML Support | FIX.4.2 |
| 347 | MessageEncoding | String | N | Type of message encoding (non-ASCII characters) used in a message’s "Encoded" fields. Required if any "Encoding" fields are used.
▶ 4 enum values
| Value | Name | Description |
| ISO-2022-JP | ISO2022JP | JIS | | EUC-JP | EUCJP | EUC | | Shift_JIS | ShiftJIS | for using SJIS | | UTF-8 | UTF8 | Unicode |
| FIX.4.2 |
| 369 | LastMsgSeqNumProcessed | SeqNum | N | The last MsgSeqNum value received by the FIX engine and processed by downstream application, such as trading system or order routing system. Can be specified on every message sent. Useful for detecting a backlog with a counterparty. | FIX.4.2 |
| ◈ Hop [Component] | | N | Number of repeating groups of historical "hop" information. Only applicable if OnBehalfOfCompID is used, however, its use is optional. Note that some market regulations or counterparties may require tracking of message hops. | FIX.4.4 |
| 627 | NoHops | NumInGroup | N | Number of HopCompID entries in repeating group. | FIX.4.4 |
| 628 | HopCompID | String | N | Assigned value used to identify the third party firm which delivered a specific message either from the firm which originated the message or from another third party (if multiple "hops" are performed). It is recommended that this value be the SenderCompID (49) of the third party.
Applicable when messages are communicated/re-distributed via third parties which function as service bureaus or "hubs". Only applicable if OnBehalfOfCompID (5) is being used. | FIX.4.4 |
| 629 | HopSendingTime | UTCTimestamp | N | Time that HopCompID (628) sent the message. It is recommended that this value be the SendingTime (52) of the message sent by the third party.
Applicable when messages are communicated/re-distributed via third parties which function as service bureaus or "hubs". Only applicable if OnBehalfOfCompID (5) is being used. | FIX.4.4 |
| 630 | HopRefID | SeqNum | N | Reference identifier assigned by HopCompID (628) associated with the message sent. It is recommended that this value be the MsgSeqNum (34) of the message sent by the third party.
Applicable when messages are communicated/re-distributed via third parties which function as service bureaus or "hubs". Only applicable if OnBehalfOfCompID (5) is being used. | FIX.4.4 |
| 335 | TradSesReqID | String | N | Provided for a response to a specific Trading Session Status Request message (snapshot). | FIX.4.2 |
| 336 | TradingSessionID | String | Y | Identifier for Trading Session | FIX.4.2 |
| 625 | TradingSessionSubID | String | N | Optional market assigned sub identifier for a trading session. Usage is determined by market or counterparties.
Used by US based futures markets to identify exchange specific execution time bracket codes as required by US market regulations. | FIX.4.3 |
| 338 | TradSesMethod | int | N | Method of trading:
▶ 3 enum values
| Value | Name | Description |
| 1 | Electronic | Electronic | | 2 | OpenOutcry | Open Outcry | | 3 | TwoParty | Two Party |
| FIX.4.2 |
| 339 | TradSesMode | int | N | Trading Session Mode
▶ 3 enum values
| Value | Name | Description |
| 1 | Testing | Testing | | 2 | Simulated | Simulated | | 3 | Production | Production |
| FIX.4.2 |
| 325 | UnsolicitedIndicator | Boolean | N | Set to 'Y' if message is sent unsolicited as a result of a previous subscription request.
▶ 2 enum values
| Value | Name | Description |
| Y | MessageIsBeingSentUnsolicited | Message is being sent unsolicited | | N | MessageIsBeingSentAsAResultOfAPriorRequest | Message is being sent as a result of a prior request |
| FIX.4.2 |
| 340 | TradSesStatus | int | Y | State of the trading session
▶ 7 enum values
| Value | Name | Description |
| 0 | Unknown | Unknown | | 1 | Halted | Halted | | 2 | Open | Open | | 3 | Closed | Closed | | 4 | PreOpen | Pre-Open | | 5 | PreClose | Pre-Close | | 6 | RequestRejected | Request Rejected |
| FIX.4.2 |
| 567 | TradSesStatusRejReason | int | N | Use with TradSesStatus = "Request Rejected"
▶ 2 enum values
| Value | Name | Description |
| 1 | UnknownOrInvalidTradingSessionID | Unknown or invalid TradingSessionID | | 99 | Other | Other |
| FIX.4.3 |
| 341 | TradSesStartTime | UTCTimestamp | N | Starting time of the trading session | FIX.4.2 |
| 342 | TradSesOpenTime | UTCTimestamp | N | Time of the opening of the trading session | FIX.4.2 |
| 343 | TradSesPreCloseTime | UTCTimestamp | N | Time of the pre-close of the trading session | FIX.4.2 |
| 344 | TradSesCloseTime | UTCTimestamp | N | Closing time of the trading session | FIX.4.2 |
| 345 | TradSesEndTime | UTCTimestamp | N | End time of the trading session | FIX.4.2 |
| 387 | TotalVolumeTraded | Qty | N | Total volume (quantity) traded. | FIX.4.2 |
| 58 | Text | String | N | Free format text string
(Note: this field does not have a specified maximum length) | FIX.4.2 |
| 354 | EncodedTextLen | Length | N | Must be set if EncodedText field is specified and must immediately precede it. | FIX.4.2 |
| 355 | EncodedText | data | N | Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field. | FIX.4.2 |
| ◈ StandardTrailer [Component] | | Y | The standard FIX message trailer | FIX.4.2 |
| 93 | SignatureLength | Length | N | Required when trailer contains signature. Note: Not to be included within SecureData field | FIX.4.0 |
| 89 | Signature | data | N | Note: Not to be included within SecureData field | FIX.4.0 |
| 10 | CheckSum | String | Y | (Always unencrypted, always last field in message) | FIX.4.0 |