UnderlyingSecurityAltIDSource (FIX tag 459)

StringFIX 4.4FIX 5.0 SP2

UnderlyingSecurityAltIDSource (tag 459) is a String field defined in FIX 4.4 and FIX 5.0 SP2. It appears in 59 message types, always optionally.

At a glance

Tag
459
Name
UnderlyingSecurityAltIDSource
Datatype
String
Dialects
FIX 4.4 and FIX 5.0 SP2
Messages
59

What the specification says

FIX 4.4

Identifies class or source of the UnderlyingSecurityAltID (458) value. Required if UnderlyingSecurityAltID is specified. Valid values: Same valid values as the SecurityIDSource (22) field

FIX 5.0 SP2

Identifies class or source of the UnderlyingSecurityAltID(458) value.

Descriptions are quoted from the FIX Orchestra sources under the Apache 2.0 licence.

A real message using tag 459

NewOrderSingle · FIX 4.4
TagFieldWire valueMeaning
8BeginStringFIX.4.4
9BodyLength183
35MsgTypeDOrder – Single
49SenderCompIDBOARTEAM
56TargetCompIDCOUNTERPARTY
34MsgSeqNum2
52SendingTime20240101-12:00:00.000
11ClOrdIDORD-10042
711NoUnderlyings1 entry1repeating group
311UnderlyingSymbolEXAMPLE
457NoUnderlyingSecurityAltID2 entries2repeating group
458UnderlyingSecurityAltIDEXAMPLE
459UnderlyingSecurityAltIDSourceEXAMPLE
458UnderlyingSecurityAltIDEXAMPLE
459UnderlyingSecurityAltIDSourceEXAMPLE
54Side1Buy
60TransactTime20240101-12:00:00.000
40OrdType1Market
10CheckSum158
Edit and decode it yourself

Shown with | separators for readability. On the wire FIX uses SOH (0x01), an invisible control byte — and because BodyLength and CheckSum are computed over the actual bytes, the two forms have different checksums. Both are valid and both decode here.

Open in the full decoder →

Generated from the FIX 4.4 dictionary and verified at build time: it parses and validates with no issues. Open the decoder to try your own message.

Where tag 459 appears

Requiredness is a property of the message, not of the field: the same tag can be optional in one message and conditionally required in another.

MessageMsgTypeFIX 4.4FIX 5.0 SP2Where in the message
Advertisement7ConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
AllocationInstructionJConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
AllocationInstructionAlertBMOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
AllocationReportASConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
AssignmentReportAWConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
CollateralAssignmentAYConditionalOptionalinside UndInstrmtCollGrp › UnderlyingInstrument › UndSecAltIDGrp
CollateralInquiryBBConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
CollateralInquiryAckBGConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
CollateralReportBAConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
CollateralRequestAXConditionalOptionalinside UndInstrmtCollGrp › UnderlyingInstrument › UndSecAltIDGrp
CollateralResponseAZConditionalOptionalinside UndInstrmtCollGrp › UnderlyingInstrument › UndSecAltIDGrp
ConfirmationAKConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
ContraryIntentionReportBOOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
CrossOrderCancelReplaceRequesttConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
CrossOrderCancelRequestuConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
DerivativeSecurityListAAConditionalOptionalinside UnderlyingInstrument › UndSecAltIDGrp
DerivativeSecurityListRequestzConditionalOptionalinside UnderlyingInstrument › UndSecAltIDGrp
DerivativeSecurityListUpdateReportBROptionalinside UnderlyingInstrument › UndSecAltIDGrp
DontKnowTradeQConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
EmailCConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
ExecutionAcknowledgementBNOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
ExecutionReport8ConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
IOI6ConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
ListStrikePricemConditionalOptionalinside UndInstrmtStrkPxGrp › UnderlyingInstrument › UndSecAltIDGrp
MarketDataIncrementalRefreshXConditionalOptionalinside MDIncGrp › UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
MarketDataRequestVConditionalOptionalinside InstrmtMDReqGrp › UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
MarketDataSnapshotFullRefreshWConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
MassQuoteiConditionalOptionalinside QuotSetGrp › UnderlyingInstrument › UndSecAltIDGrp
MassQuoteAcknowledgementbConditionalOptionalinside QuotSetAckGrp › UnderlyingInstrument › UndSecAltIDGrp
MultilegOrderCancelReplaceACConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
NewOrderCrosssConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
NewOrderListEConditionalOptionalinside ListOrdGrp › UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
NewOrderMultilegABConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
NewOrderSingleDConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
NewsBConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
OrderCancelReplaceRequestGConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
OrderCancelRequestFConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
OrderMassActionReportBZOptionalinside UnderlyingInstrument › UndSecAltIDGrp
OrderMassActionRequestCAOptionalinside UnderlyingInstrument › UndSecAltIDGrp
OrderMassCancelReportrConditionalOptionalinside UnderlyingInstrument › UndSecAltIDGrp
OrderMassCancelRequestqConditionalOptionalinside UnderlyingInstrument › UndSecAltIDGrp
OrderMassStatusRequestAFConditionalOptionalinside UnderlyingInstrument › UndSecAltIDGrp
OrderStatusRequestHConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
PositionMaintenanceReportAMConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
PositionMaintenanceRequestALConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
PositionReportAPConditionalOptionalinside PosUndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
QuoteSConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
QuoteCancelZConditionalOptionalinside QuotCxlEntriesGrp › UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
QuoteRequestRConditionalOptionalinside QuotReqGrp › UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
QuoteRequestRejectAGConditionalOptionalinside QuotReqRjctGrp › UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
QuoteResponseAJConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
QuoteStatusReportAIConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
QuoteStatusRequestaConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
RFQRequestAHConditionalOptionalinside RFQReqGrp › UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
RequestForPositionsANConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
RequestForPositionsAckAOConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
SecurityDefinitiondConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
SecurityDefinitionRequestcConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
SecurityDefinitionUpdateReportBPOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
SecurityListyConditionalOptionalinside SecListGrp › UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
SecurityListRequestxConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
SecurityListUpdateReportBKOptionalinside SecLstUpdRelSymGrp › UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
SecurityStatusfConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
SecurityStatusRequesteConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
TradeCaptureReportAEConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
TradeCaptureReportAckAROptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
TradeCaptureReportRequestADConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp
TradeCaptureReportRequestAckAQConditionalOptionalinside UndInstrmtGrp › UnderlyingInstrument › UndSecAltIDGrp

Wire format

Free-form text. Any byte except the SOH separator is legal, so values are not trimmed or case-folded on the wire. @boarteam/fix keeps the value as a string; format rules are checked by validate(), which reports validate/invalid-value rather than throwing.

Read tag 459 in TypeScript

decode.tsts
import { createFixEngine } from "@boarteam/fix";import { dictionary } from "@boarteam/fix-dict-fix44";const fix = createFixEngine(dictionary);const { message, issues } = fix.parse(raw);const field = message.fields[459];field?.name;   // "UnderlyingSecurityAltIDSource"field?.raw;    // the verbatim wire stringfield?.value;  // coerced to a string

Other String fields

Decode this in your own code

The same engine that produced the decoded example above is an Apache-2.0 npm package with zero runtime dependencies. It runs in Node and in the browser, and parse() returns problems as data instead of throwing.

npm i @boarteam/fix @boarteam/fix-dict-fix44