Definition
The NewOrderMultileg(35=AB) message is used to submit orders for securities that are made up of multiple securities, known as legs.
Message structure 4134 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.
Nested fields load when needed. Open the full static layout (also works without JavaScript).
StandardHeaderComponentRequired
MsgType = AB
StandardHeader definition & usage →
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Unique identifier of the order as assigned by institution or by the intermediary with closest association with the investor.
PartiesRepeating groupCount tag 453—
This is party information related to the submitter of the request.
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TargetPartiesRepeating groupCount tag 1461—
Identifies parties not directly associated with or owning the order, who are to be informed to effect processing of the order.
TargetParties definition & usage →
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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 →
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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.
ValueChecksGrpRepeating groupCount tag 1868—
ValueChecksGrp definition & usage →
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MatchingInstructionsRepeating groupCount tag 1624—
MatchingInstructions definition & usage →
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May be used as an alternative to MatchingInstructions when the identifier does not appear in another field.
DisplayInstructionComponent—
DisplayInstruction definition & usage →
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DisclosureInstructionGrpRepeating groupCount tag 1812—
Specifies instructions to disclose certain order level information in market data.
DisclosureInstructionGrp definition & usage →
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TrdgSesGrpRepeating groupCount tag 386—
Specifies the number of repeating TradingSessionIDs
TrdgSesGrp definition & usage →
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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.
InstrumentComponent—
Instrument definition & usage →
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UndInstrmtGrpRepeating groupCount tag 711—
Number of underlyings
UndInstrmtGrp definition & usage →
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Useful for verifying security identification
For FX Swaps. Used to express the differential between the far leg's bid/offer and the near leg's bid/offer.
LegOrdGrpRepeating groupCount tag 555—
Number of legs
LegOrdGrp definition & usage →
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Required for short sell orders
Time this order request was initiated/released by the trader, trading system, or intermediary.
OrderQtyDataComponent—
Conditionally required when the multileg order is not for a FX Swap, or any other swaps or multilegged transaction where having OrderQty(38) is irrelevant as the amounts are expressed in the LegOrderQty(685).
OrderQtyData definition & usage →
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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".
TriggeringInstructionComponent—
TriggeringInstruction definition & usage →
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Upfront Price for CDS transactions. Conditionally required if TradePriceNegotiationMethod(1740) = 4(Percent of par and upfront amount), 5(Deal spread and upfront amount) or 6(Upfront points and upfront amount).
Must be set if EncodedComplianceText(2352) field is specified and must immediately precede it.
Encoded (non-ASCII characters) representation of the ComplianceText(2404) field in the encoded format specified via the MessageEncoding(347) field.
Required for Previously Indicated Orders (OrdType=E)
Required for Previously Quoted Orders (OrdType=D)
Required for counter-order selection / Hit / Take Orders. (OrdType = Q)
Conditionally required if RefOrderID is specified.
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
Conditionally required when TimeInForce(59)=10 (Good for Time)
CommissionDataComponent—
CommissionData definition & usage →
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CommissionDataGrpRepeating groupCount tag 2639—
Use as an alternative to CommissionData component if multiple commissions or enhanced attributes are needed.
CommissionDataGrp definition & usage →
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OrderAttributeGrpRepeating groupCount tag 2593—
OrderAttributeGrp definition & usage →
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Indicates that broker is requested to execute a Forex accommodation trade in conjunction with the security trade.
Required if ForexReq = Y.
RateSourceRepeating groupCount tag 1445—
RateSource definition & usage →
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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 →
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DiscretionInstructionsComponent—
DiscretionInstructions definition & usage →
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The target strategy of the order
StrategyParametersGrpRepeating groupCount tag 957—
Strategy parameter block
StrategyParametersGrp definition & usage →
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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.
Conditionally required for auction orders.
StandardTrailerComponentRequired
StandardTrailer definition & usage →
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