Definition
The New Order - Multileg is provided to submit orders for securities that are made up of multiple securities, known as legs.
Message structure 316 distinct fields
Source order, including nested components and groups. Group counts precede the repeated entries. “Required here” is relative to the enclosing component or group, not unconditional in the message. A dash means not marked required; conditional requirements remain in the source notes. This is a reference, not a counterparty-specific validator.
StandardHeaderComponentRequired
MsgType = AB
StandardHeader definition & usage →
FIX.4.4 (Always unencrypted, must be first field in message)
(Always unencrypted, must be second field in message)
(Always unencrypted, must be third field in message)
(Always unencrypted)
(Always unencrypted)
Trading partner company ID used when sending messages via a third party (Can be embedded within encrypted data section.)
Trading partner company ID used when sending messages via a third party (Can be embedded within encrypted data section.)
Required to identify length of encrypted section of message. (Always unencrypted)
Required when message body is encrypted. Always immediately follows SecureDataLen field.
(Can be embedded within encrypted data section.)
(Can be embedded within encrypted data section.)
Sender's LocationID (i.e. geographic location and/or desk) (Can be embedded within encrypted data section.)
"ADMIN" reserved for administrative messages not intended for a specific user. (Can be embedded within encrypted data section.)
Trading partner LocationID (i.e. geographic location and/or desk) (Can be embedded within encrypted data section.)
Trading partner SubID used when delivering messages via a third party. (Can be embedded within encrypted data section.)
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.)
Trading partner SubID used when delivering messages via a third party. (Can be embedded within encrypted data section.)
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.)
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.)
Required when message may be duplicate of another message sent under a different sequence number. (Can be embedded within encrypted data section.)
(Can be embedded within encrypted data section.)
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.)
Required when specifying XmlData to identify the length of a XmlData message block. (Can be embedded within encrypted data section.)
Can contain an XML formatted message block (e.g. FIXML). Always immediately follows XmlDataLen field. (Can be embedded within encrypted data section.) See Volume 1: FIXML Support
Type of message encoding (non-ASCII characters) used in a message’s "Encoded" fields. Required if any "Encoding" fields are used.
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.
HopRepeating groupCount tag 627—
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.
Unique identifier of the order as assigned by institution or by the intermediary with the closest association with the investor.
PartiesRepeating groupCount tag 453—
Repeating group below should contain unique combinations of PartyID, PartyIDSource, and PartyRole
Used to identify source of PartyID. Required if PartyIDSource is specified. Required if NoPartyIDs > 0.
Used to identify class source of PartyID value (e.g. BIC). Required if PartyID is specified. Required if NoPartyIDs > 0.
Identifies the type of PartyID (e.g. Executing Broker). Required if NoPartyIDs > 0.
PtysSubGrpRepeating groupCount tag 802—
Repeating group of Party sub-identifiers.
PtysSubGrp definition & usage →
Used to assign an identifier to the block of individual preallocations
PreAllocMlegGrpRepeating groupCount tag 78—
Number of repeating groups for pre-trade allocation
PreAllocMlegGrp definition & usage →
NestedParties3Repeating groupCount tag 948—
NestedParties3 definition & usage →
Repeating group below should contain unique combinations of Nested3PartyID, Nested3PartyIDSource, and Nested3PartyRole
Used to identify source of Nested3PartyID. Required if Nested3PartyIDSource is specified. Required if NoNested3PartyIDs > 0.
Used to identify class source of Nested3PartyID value (e.g. BIC). Required if Nested3PartyID is specified. Required if NoNested3PartyIDs > 0.
Identifies the type of Nested3PartyID (e.g. Executing Broker). Required if NoNested3PartyIDs > 0.
NstdPtys3SubGrpRepeating groupCount tag 952—
Repeating group of Nested3Party sub-identifiers.
NstdPtys3SubGrp definition & usage →
Takes precedence over SettlType value and conditionally required/omitted for specific SettlType values.
Can contain multiple instructions, space delimited. If OrdType=P, exactly one of the following values (ExecInst = L, R, M, P, O, T, or W) must be specified.
TrdgSesGrpRepeating groupCount tag 386—
Specifies the number of repeating TradingSessionIDs
TrdgSesGrp definition & usage →
Used to identify soft trades at order entry.
Additional enumeration that indicates this is an order for a multileg order and that the sides are specified in the Instrument Leg component block.
InstrumentComponentRequired
SecurityType[167] = "MLEG" CFICode should be set to the type of multileg product, such as "O" - options, "F" - Future or Swap.
Instrument definition & usage →
Common, "human understood" representation of the security. SecurityID value can be specified if no symbol exists (e.g. non-exchange traded Collective Investment Vehicles) Use "[N/A]" for products which do not have a symbol.
Used in Fixed Income with a value of "WI" to indicate "When Issued" for a security to be reissued under an old CUSIP or ISIN or with a value of "CD" to indicate a EUCP with lump-sum interest rather than discount price.
Takes precedence in identifying security to counterparty over SecurityAltID block. Requires SecurityIDSource if specified.
Required if SecurityID is specified.
SecAltIDGrpRepeating groupCount tag 454—
Number of alternate Security Identifiers
SecAltIDGrp definition & usage →
Indicates the type of product the security is associated with (high-level category)
Indicates the type of security using ISO 10962 standard, Classification of Financial Instruments (CFI code) values. It is recommended that CFICode be used instead of SecurityType for non-Fixed Income instruments.
It is recommended that CFICode be used instead of SecurityType for non-Fixed Income instruments. Required for Fixed Income. Refer to Volume 7 - Fixed Income Futures and Options should be specified using the CFICode[461] field instead of SecurityType[167] (Refer to Volume 7 - Recommendations and Guidelines for Futures and Options Markets.)
Sub-type qualification/identification of the SecurityType (e.g. for SecurityType="MLEG"). If specified, SecurityType is required.
Specifies the month and year of maturity. Applicable for standardized derivatives which are typically only referenced by month and year (e.g. S&P futures). Note MaturityDate (a full date) can also be specified.
Specifies date of maturity (a full date). Note that standardized derivatives which are typically only referenced by month and year (e.g. S&P futures).may use MaturityMonthYear and/or this field. When using MaturityMonthYear, it is recommended that markets and sell sides report the MaturityDate on all outbound messages as a means of data enrichment.
For Options.
Date interest is to be paid. Used in identifying Corporate Bond issues.
Date instrument was issued. For Fixed Income IOIs for new issues, specifies the issue date.
(Deprecated, use UnderlyingSecurityType (310) )
(Deprecated, use TerminationType (788) )
(Deprecated, use Price (44) )
For Fixed Income: Amortization Factor for deriving Current face from Original face for ABS or MBS securities, note the fraction may be greater than, equal to or less than 1. In TIPS securities this is the Inflation index. Qty * Factor * Price = Gross Trade Amount For Derivatives: Contract Value Factor by which price must be adjusted to determine the true nominal value of one futures/options contract. (Qty * Price) * Factor = Nominal Value
The location at which records of ownership are maintained for this instrument, and at which ownership changes must be recorded. Can be used in conjunction with ISIN to address ISIN uniqueness issues.
ISO Country code of instrument issue (e.g. the country portion typically used in ISIN). Can be used in conjunction with non-ISIN SecurityID (e.g. CUSIP for Municipal Bonds without ISIN) to provide uniqueness.
A two-character state or province abbreviation.
The three-character IATA code for a locale (e.g. airport code for Municipal Bonds).
(Deprecated, use YieldRedemptionDate (696) in <YieldData> component block)
Used for derivatives, such as options and covered warrants
Used for derivatives
Used for derivatives, such as options and covered warrants to indicate a versioning of the contract when required due to corporate actions to the underlying. Should not be used to indicate type of option - use the CFICode[461] for this purpose.
For Fixed Income, Convertible Bonds, Derivatives, etc. Note: If used, quantities should be expressed in the "nominal" (e.g. contracts vs. shares) amount.
For Fixed Income.
Can be used to identify the security.
Must be set if EncodedIssuer field is specified and must immediately precede it.
Encoded (non-ASCII characters) representation of the Issuer field in the encoded format specified via the MessageEncoding field.
Must be set if EncodedSecurityDesc field is specified and must immediately precede it.
Encoded (non-ASCII characters) representation of the SecurityDesc field in the encoded format specified via the MessageEncoding field.
Identifies MBS / ABS pool
Must be present for MBS/TBA
The program under which a commercial paper is issued
The registration type of a commercial paper issuance
EvntGrpRepeating groupCount tag 864—
Number of repeating EventType group entries.
If different from IssueDate
If different from IssueDate and DatedDate
UndInstrmtGrpRepeating groupCount tag 711—
Number of underlyings
UndInstrmtGrp definition & usage →
UnderlyingInstrumentComponent—
UnderlyingInstrument definition & usage →
(Deprecated, not applicable/used for Repos)
(Deprecated, not applicable/used for Repos)
(Deprecated, not applicable/used for Repos)
(Deprecated, use YieldRedemptionDate (696) in <YieldData> component block)
Specific to the <UnderlyingInstrument> (not in <Instrument>)
Specific to the <UnderlyingInstrument> (not in <Instrument>) Unit amount of the underlying security (par, shares, currency, etc.)
Specific to the <UnderlyingInstrument> (not in <Instrument>) In a financing deal clean price (percent-of-par or per unit) of the underlying security or basket.
Specific to the <UnderlyingInstrument> (not in <Instrument>) In a financing deal price (percent-of-par or per unit) of the underlying security or basket. "Dirty" means it includes accrued interest
Specific to the <UnderlyingInstrument> (not in <Instrument>) In a financing deal price (percent-of-par or per unit) of the underlying security or basket at the end of the agreement.
Specific to the <UnderlyingInstrument> (not in <Instrument>) Currency value attributed to this collateral at the start of the agreement
Specific to the <UnderlyingInstrument> (not in <Instrument>) Currency value currently attributed to this collateral
Specific to the <UnderlyingInstrument> (not in <Instrument>) Currency value attributed to this collateral at the end of the agreement
UnderlyingStipulationsRepeating groupCount tag 887—
Specific to the <UnderlyingInstrument> (not in <Instrument>)
UnderlyingStipulations definition & usage →
Required if NoUnderlyingStips >0
Useful for verifying security identification
LegOrdGrpRepeating groupCount tag 555Required
Number of legs Can be zero (e.g. standardized multileg instrument such as an Option strategy) - must be provided even if zero
LegOrdGrp definition & usage →
InstrumentLegComponent—
InstrumentLeg definition & usage →
(Deprecated, not applicable/used for Repos)
(Deprecated, not applicable/used for Repos)
(Deprecated, not applicable/used for Repos)
(Deprecated, use YieldRedemptionDate (696) in <YieldData> component block)
Specific to the <InstrumentLeg> (not in <Instrument>)
Specific to the <InstrumentLeg> (not in <Instrument>)
Specific to the <InstrumentLeg> (not in <Instrument>)
Identifies MBS / ABS pool
LegStipulationsRepeating groupCount tag 683—
LegStipulations definition & usage →
Required if NoLegStipulations >0
LegPreAllocGrpRepeating groupCount tag 670—
LegPreAllocGrp definition & usage →
NestedParties2Repeating groupCount tag 756—
NestedParties2 definition & usage →
Repeating group below should contain unique combinations of Nested2PartyID, Nested2PartyIDSource, and Nested2PartyRole
Used to identify source of Nested2PartyID. Required if Nested2PartyIDSource is specified. Required if NoNested2PartyIDs > 0.
Used to identify class source of Nested2PartyID value (e.g. BIC). Required if Nested2PartyID is specified. Required if NoNested2PartyIDs > 0.
Identifies the type of Nested2PartyID (e.g. Executing Broker). Required if NoNested2PartyIDs > 0.
NstdPtys2SubGrpRepeating groupCount tag 806—
Repeating group of Nested2Party sub-identifiers.
NstdPtys2SubGrp definition & usage →
NestedPartiesRepeating groupCount tag 539—
NestedParties definition & usage →
Repeating group below should contain unique combinations of NestedPartyID, NestedPartyIDSource, and NestedPartyRole
Used to identify source of NestedPartyID. Required if NestedPartyIDSource is specified. Required if NoNestedPartyIDs > 0.
Used to identify class source of NestedPartyID value (e.g. BIC). Required if NestedPartyID is specified. Required if NoNestedPartyIDs > 0.
Identifies the type of NestedPartyID (e.g. Executing Broker). Required if NoNestedPartyIDs > 0.
NstdPtysSubGrpRepeating groupCount tag 804—
Repeating group of NestedParty sub-identifiers.
NstdPtysSubGrp definition & usage →
Required for short sell orders
Time this order request was initiated/released by the trader, trading system, or intermediary.
OrderQtyDataComponentRequired
OrderQtyData definition & usage →
One of CashOrderQty, OrderQty, or (for CIV only) OrderPercent is required. Note that unless otherwise specified, only one of CashOrderQty, OrderQty, or OrderPercent should be specified.
One of CashOrderQty, OrderQty, or (for CIV only) OrderPercent is required. Note that unless otherwise specified, only one of CashOrderQty, OrderQty, or OrderPercent should be specified. Specifies the approximate "monetary quantity" for the order. Broker is responsible for converting and calculating OrderQty in tradeable units (e.g. shares) for subsequent messages.
For CIV - Optional. One of CashOrderQty, OrderQty or (for CIV only) OrderPercent is required. Note that unless otherwise specified, only one of CashOrderQty, OrderQty, or OrderPercent should be specified.
For CIV - Optional
For CIV - Optional
Required for limit OrdTypes. For F/X orders, should be the "all-in" rate (spot rate adjusted for forward points). Can be used to specify a limit price for a pegged order, previously indicated, etc.
Required for OrdType = "Stop" or OrdType = "Stop limit".
Required for Previously Indicated Orders (OrdType=E)
Required for Previously Quoted Orders (OrdType=D)
Absence of this field indicates Day order
Can specify the time at which the order should be considered valid
Conditionally required if TimeInForce = GTD and ExpireTime is not specified.
Conditionally required if TimeInForce = GTD and ExpireDate is not specified.
States whether executions are booked out or accumulated on a partially filled GT order
Indicates that broker is requested to execute a Forex accommodation trade in conjunction with the security trade.
Required if ForexReq = Y.
Method for booking out this order. Used when notifying a broker that an order to be settled by that broker is to be booked out as an OTC derivative (e.g. CFD or similar). Absence of this field implies regular booking.
Must be set if EncodedText field is specified and must immediately precede it.
Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field.
For use in derivatives omnibus accounting
For use with derivatives, such as options
PegInstructionsComponent—
PegInstructions definition & usage →
Amount (signed) added to the peg for a pegged order in the context of the PegOffsetType
Describes whether peg is static/fixed or floats
Type of Peg Offset (e.g. price offset, tick offset etc)
Specifies nature of resulting pegged price (e.g. or better limit, strict limit etc)
If the calculated peg price is not a valid tick price, specifies how to round the price (e.g. be more or less aggressive)
The scope of the "related to" price of the peg (e.g. local, global etc)
DiscretionInstructionsComponent—
DiscretionInstructions definition & usage →
What the discretionary price is related to (e.g. primary price, display price etc)
Amount (signed) added to the "related to" price specified via DiscretionInst, in the context of DiscretionOffsetType
Describes whether discretion price is static/fixed or floats
Type of Discretion Offset (e.g. price offset, tick offset etc)
Specifies the nature of the resulting discretion price (e.g. or better limit, strict limit etc)
If the calculated discretion price is not a valid tick price, specifies how to round the price (e.g. to be more or less aggressive)
The scope of "related to" price of the discretion (e.g. local, global etc)
The target strategy of the order
For further specification of the TargetStrategy
Mandatory for a TargetStrategy=Participate order and specifies the target particpation rate. For other order types optionally specifies a volume limit (i.e. do not be more than this percent of the market volume)
For CIV - Optional
Reference to Registration Instructions message for this Order.
Supplementary registration information for this Order
Indicates the method of execution reporting requested by issuer of the order.
StandardTrailerComponentRequired
StandardTrailer definition & usage →
Required when trailer contains signature. Note: Not to be included within SecureData field
Note: Not to be included within SecureData field
(Always unencrypted, always last field in message)