TT® FIX General

Component - LegInstrumentGrp

Component - LegInstrumentGrp

Component: <LegInstrumentGrp>

Overview

The <LegInstrumentGrp> component block uses the same structure as the instrument component block sent from FIX clients to TT FIX Order Router, except that all of its tags represent the legs of an exchange-traded strategy. For example, instead of Tag 55 (Symbol) this block contains Tag 600 (LegSymbol).

Tag Directory

Click the links below to navigate to the documentation for that tag.

Supported tags

Tag # Field Name Req'd Data type Comments
555 NoLegs Y String

Replaces 7.X tag 146 (NoRelatedSym)

Number of legs in the repeating group

Can be zero (e.g. standardized multileg instrument such as an Option strategy). The value must be provided even if zero.

> 616 LegSecurityExchange C Exchange

Replaces 7.X tag 308 (UnderlyingSecurityExchange)

Multi-leg instrument's individual security's SecurityExchange.

Possible values include:

  • AGGREGATOR
  • ALGO
  • ASE
  • ASX
  • B3
  • BitMEX
  • BrokerTec
  • CBOE
  • CBOT
  • CFE
  • CME
  • Coinbase
  • CoinFLEX
  • CurveGlobal
  • CZCE
  • DCE
  • DGCX
  • EEX
  • Eurex
  • Euronext
  • Fenics
  • FEX
  • HKEX
  • ICE
  • ICE_L
  • IDEM
  • INE
  • KCG
  • KRK
  • LME
  • LSE
  • MEFF
  • MEXDER
  • MOEX
  • MX
  • MX
  • NDAQ_EU
  • NFI
  • NFX
  • OSE
  • SGX
  • TFEX
  • TFX
  • TOCOM

Condition: Required when both of the following are true.

  • The leg instrument trades on a different exchange that the parent instrument.
  • Both Tag 18100 (LegExtDestination) and Tag 602 (LegSecurityId) are absent.
OR
> 18100 LegExDestination C Exchange

New tag for TT

Execution destination for the leg order as defined by the institution

Some traders use this tag in place of Tag 207 (SecurityExchange) to identify the exchange.

ISO 10383 defines a comprehensive list of MIC codes.

Condition: Required when both of the following are true.

  • The leg instrument trades on a different exchange that the parent instrument.
  • Both Tag 616 (LegSecurityExchange) and Tag 602 (LegSecurityId) are absent.
OR
> 602 LegSecurityId C String

Replaces 7.X tag 309 (UnderlyingSecurityID)

TT security ID that uniquely identifies the instrument in the TT platform.

Condition: Required when both of the following are true.

  • The leg instrument trades on a different exchange that the parent instrument.
  • Both Tag 18100 (LegExtDestination) and Tag 616 (LegSecurityExchange) are absent.

Note: The combination of this tag and tag 603 (LegSecurityIDSource) must uniquely identify an instrument in the TT platform.

> 603 LegIDSource C String

Replaces 7.X tag 309 (UnderlyingSecurityID)

Multileg instrument's individual security's SecurityIDSource.

Condition: Required when Tag 18100 (LegExtDestination) and Tag 616 (LegSecurityExchange) are absent.

Note: The combination of this tag and tag 602 (LegSecurityId) must uniquely identify an instrument in the TT platform.

> 600 LegSymbol N String

Replaces 7.X tag 311 (UnderlyingSymbol)

Multi-leg instrument's individual security's Symbol.

Condition: Required when Tag 167 (SecurityType)=MLEG.

See Symbol (55) field for description.

Note: Users can map the value of Tag 600 to a different symbology using the Symbol Mapping feature in User Setup. Refer to the Fix Rules and Symbol Mappings section in the User Setup Help for more information.

> 608 LegCFICode N String

Multileg instrument's individual security's CFICode (tag 461).

See CFICode (461) field for description
> 620 LegSecurityDesc N String

Leg security description.
> 607 LegProduct N String

Multileg instrument's individual security's product.

Possible values include:

  • 1: Agency
  • 2: Commodity
  • 3: Corporate
  • 4: Currency
  • 5: Equity
  • 6: Government
  • 7: Index
  • 8: Loan
  • 9: Money market
  • 10: Mortgage
  • 11: Municipal
  • 12: Other
  • 13: Financing
  • 14: Energy
> 609 LegSecurityType N String

Replaces 7.X tag 310 (UnderlyingSecurityType)

Multi-leg instrument's individual security's SecurityType.

Possible values include:

  • FUT: Future
  • MLEG: Multi-leg
  • OPT: Option
  • SPOT: EEX spot products
  • TBOND: Treasury bond
  • CS: Common stock
  • NONE: No security type (Not valid for 35=c, e or V)
> 764 LegSecuritySubType N String

Replaces 7.X tag 310 (UnderlyingSecurityType)

SecuritySubType of the leg instrument.

See SecuritySubType (762) field for description
> 610 LegMaturityMonthYear N MonthYear

Replaces 7.X tag 313 (UnderlyingMaturityMonthYear)

Multi-leg instrument's individual security's MaturityMonthYear
> 611 LegMaturityDate N LocalMktDate

Replaces 7.X tag 314 (UnderlyingMaturityDay)

Multi-leg instrument's individual security's MaturityDate.
> 18314 LegMaturityDay N DayOfMonth

Replaces 7.X tag 314 (UnderlyingMaturityDay)

Multi-leg instrument's individual security's MaturityDay.
> 612 LegStrikePrice N Price

Replaces 7.X tag 316 (UnderlyingStrikePrice)

Multi-leg instrument's individual security's StrikePrice.
> 1358 LegPutOrCall C int

Replaces 7.X tag 315 (UnderlyingPutOrCall)

Whether the option represents a put or call

Possible values include:

  • 0: Put
  • 1: Call

Condition: Required when Tag 609 (LegSecurityType) is OPT

> 624 LegSide N char

Replaces 7.X tag 16624 (LegSide)

The side of this individual leg (multi-leg security).

Possible values include:

  • 1: Buy
  • 2: Sell
  • 3: Buy minus
  • 4: Sell plus
  • 5: Sell short
  • 6: Sell short exempt
  • 7: Undisclosed
  • 8: Cross
  • 9: Cross short
> 623 LegRatioQty N Qty

Replaces 7.X tag 319 (RatioQty)

Ratio of quantity for this individual leg relative to the entire multi-leg security

The value represents one of the following:

  • For a leg of a covered strategy (such as a volatility trade) on CME or NYSE_Liffe markets, the value represents the delta (expressed as an integer between 1 and 100).
  • In all other cases, the value represents the quantity of this leg in the strategy.
> 556 LegCurrency N Currency

Replaces 7.X tag 318 (UnderlyingPutOrCall)

Currency associated with a particular leg's price
> 561 Roundlot N Qty

Replaces 7.X defined custom tag 16461 (LotSize)

The trading lot size of a security.
> 566 LegPrice N Price

Replaces 7.X tag 10566 (LegPrice)

Price of the leg for a multi-leg instrument
> 687 LegQty N Qty

Quantity of this leg.
> 654 LegRefID N string

Unique indicator for a specific leg.

Note: Sent only for FIX 4.4 sessions when the tag is included the corresponding New Order Multileg (AB) request. FIX 4.4 Drop Copy sessions will not send this tag for orders placed from the TT Trade application.

> 637 LegLastPx N Price

Execution price assigned to a leg of a multileg instrument.
> 18224 LegContractYearMonth N char Contract term of the underlying instrument in the form, YYYYMMM
> 18212 LegDeliveryTerm C char

Replaces 7.X tag 18212 (UnderlyingContractTerm)

Term of delivery for the underlying instrument.

TT FIX uses this value to identify contracts that do not have a monthly delivery term.

Possible values include:

  • A: Same day
  • B: Balance of month
  • D: Day
  • E: Weekly
  • H: Hour
  • L: Balance of week
  • M: Month
  • N: Next day
  • P: Pack
  • Q: Quarterly
  • S: Seasonal
  • T: Weekend
  • V: Variable
  • W: Week
  • X: Custom
  • Y: Year

Condition: Required when both of the following are true:

  • The Security Definition indicates it is required.
  • The delivery term is not monthly.
> 18213 LegDeliveryDate C LOCALMKTDATE

New tag for TT

Date for contract delivery

Condition: Sent when available
> 1366 LegAllocID C String

Identifier assigned to a leg of a multi-leg trade for ASX clearing purposes (clearing deal number).

Condition: Sent when provided by the exchange.
> 16568 LegAvgPx C Price

The average (mean) price for the legs of a spread.

This value will be populated on Summary Spread Fill Execution Reports.

Component: <LegSecurityAltIDGrp>
N Group

Repeating group of security alt IDs for legs in a multileg instrument. For additional information about this group, consult the full documentation.

Tag # Field Name Req'd Data type Comments
604 NoLegSecurityAltID C int

Replaces 7.X tag 146 (NoRelatedSym)

Number of alternate leg security IDs contained in this repeating group

Condition: Sent when there are one or more alternate leg security IDs
> 605 LegSecurityAltID Y String

Replaces 7.X tag 10456 (UnderlyingSecurityAltID)

Alternate ID for an instrument or security, typically for display purposes.
> 606 LegSecurityAltIDSource Y String

New tag for TT

Class or source of the LegSecurityAltID (605) value.

Possible values include:

  • 4: ISIN number
  • 5: RIC code
  • 8: Exchange security ID
  • 94: Alt Symbol (For ICE, the value is the "Cleared Alias" for the contract.)
  • 95: Clearport
  • 97: Alias
  • 98: Name
  • 99: Other
  • 91: Exchange Ticker
  • A: Bloomberg Code
  • S: OpenFIGI ID
Component: <LegFillsGrp>
C Group

Repeating group of fills for this leg instrument.

Condition: Only used in Execution Report (8) messages when the FIX client is connected to a TT FIX 4.4 session.

Tag # Field Name Req'd Data type Comments
16120 LegNoFills C NumInGroup

Number of partial leg fills included in an Execution Report

Condition: Sent for each leg when a multileg order is filled through multiple price levels in a single match transaction, i.e. "sweeping the market". Can be sent when LegNoFills = 1 for some markets, such as Eurex/EEX.

Note: Only sent if the FIX client is connected to a TT FIX 4.4 session.
> 16121 LegFillExecID C String

Unique identifier of leg execution as assigned by sell-side (broker, exchange, ECN). The ID must not overlap tag 17 (ExecID).

Condition: Sent when tag 16120 > 0
> 16122 LegFillPx C Price

Price of this leg fill

Condition: Sent when tag 16120 > 0
> 16123 LegFillQty C Qty

Quantity of this leg fill

Condition: Sent when tag 16120 > 0
> 16124 LegFillTradingVenueRegulatoryTradeID C String

Trading Venue transaction identification code of this leg fill

Condition: Sent if available when tag 16120 > 0
> 16125 LegFillLastLiquidityIndicator N int

Whether this leg fill was a result of a liquidity provider providing or a liquidity taker taking the liquidity in this LegFillsGrp repeating group.

Possible values include:

  • 1: Added liquidity
  • 2: Removed liquidity