LegExerciseStyle (FIX tag 1420)

intFIX 5.0 SP2

LegExerciseStyle (tag 1420) is an int field defined in FIX 5.0 SP2. It appears in 55 message types, always optionally.

At a glance

Tag
1420
Name
LegExerciseStyle
Datatype
int
Dialects
FIX 5.0 SP2
Messages
55

What the specification says

Type of exercise of a derivatives security

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

A real message using tag 1420

ExecutionReport · FIX 5.0 SP2
TagFieldWire valueMeaning
8BeginStringFIXT.1.1
9BodyLength167
35MsgType8ExecutionReport
49SenderCompIDBOARTEAM
56TargetCompIDCOUNTERPARTY
34MsgSeqNum2
52SendingTime20240101-12:00:00.000
37OrderIDORD-10042
17ExecIDEXEC-88117
150ExecType0New
39OrdStatus0New
54Side1Buy
151LeavesQty0
14CumQty1000000
555NoLegs2 entries2repeating group
600LegSymbolEXAMPLE
1420LegExerciseStyle1
600LegSymbolEXAMPLE
1420LegExerciseStyle1
10CheckSum213
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 5.0 SP2 dictionary and verified at build time: it parses and validates with no issues. Open the decoder to try your own message.

Where tag 1420 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.

MessageMsgTypeRequirednessWhere in the message
Advertisement7Optionalinside InstrmtLegGrp › InstrumentLeg
AllocationInstructionJOptionalinside InstrmtLegGrp › InstrumentLeg
AllocationInstructionAlertBMOptionalinside InstrmtLegGrp › InstrumentLeg
AllocationReportASOptionalinside InstrmtLegGrp › InstrumentLeg
AssignmentReportAWOptionalinside InstrmtLegGrp › InstrumentLeg
CollateralAssignmentAYOptionalinside InstrmtLegGrp › InstrumentLeg
CollateralInquiryBBOptionalinside InstrmtLegGrp › InstrumentLeg
CollateralInquiryAckBGOptionalinside InstrmtLegGrp › InstrumentLeg
CollateralReportBAOptionalinside InstrmtLegGrp › InstrumentLeg
CollateralRequestAXOptionalinside InstrmtLegGrp › InstrumentLeg
CollateralResponseAZOptionalinside InstrmtLegGrp › InstrumentLeg
ConfirmationAKOptionalinside InstrmtLegGrp › InstrumentLeg
CrossOrderCancelReplaceRequesttOptionalinside InstrmtLegGrp › InstrumentLeg
CrossOrderCancelRequestuOptionalinside InstrmtLegGrp › InstrumentLeg
DerivativeSecurityListAAOptionalinside RelSymDerivSecGrp › InstrmtLegGrp › InstrumentLeg
DerivativeSecurityListUpdateReportBROptionalinside RelSymDerivSecUpdGrp › InstrmtLegGrp › InstrumentLeg
DontKnowTradeQOptionalinside InstrmtLegGrp › InstrumentLeg
EmailCOptionalinside InstrmtLegGrp › InstrumentLeg
ExecutionAcknowledgementBNOptionalinside InstrmtLegGrp › InstrumentLeg
ExecutionReport8Optionalinside InstrmtLegExecGrp › InstrumentLeg
IOI6Optionalinside InstrmtLegIOIGrp › InstrumentLeg
MarketDataIncrementalRefreshXOptionalinside MDIncGrp › InstrmtLegGrp › InstrumentLeg
MarketDataRequestVOptionalinside InstrmtMDReqGrp › InstrmtLegGrp › InstrumentLeg
MarketDataSnapshotFullRefreshWOptionalinside InstrmtLegGrp › InstrumentLeg
MassQuoteiOptionalinside QuotSetGrp › QuotEntryGrp › InstrmtLegGrp › InstrumentLeg
MassQuoteAcknowledgementbOptionalinside QuotSetAckGrp › QuotEntryAckGrp › InstrmtLegGrp › InstrumentLeg
MultilegOrderCancelReplaceACOptionalinside LegOrdGrp › InstrumentLeg
NewOrderCrosssOptionalinside InstrmtLegGrp › InstrumentLeg
NewOrderMultilegABOptionalinside LegOrdGrp › InstrumentLeg
NewsBOptionalinside InstrmtLegGrp › InstrumentLeg
PositionMaintenanceReportAMOptionalinside InstrmtLegGrp › InstrumentLeg
PositionMaintenanceRequestALOptionalinside InstrmtLegGrp › InstrumentLeg
PositionReportAPOptionalinside InstrmtLegGrp › InstrumentLeg
QuoteSOptionalinside LegQuotGrp › InstrumentLeg
QuoteCancelZOptionalinside QuotCxlEntriesGrp › InstrmtLegGrp › InstrumentLeg
QuoteRequestROptionalinside QuotReqGrp › QuotReqLegsGrp › InstrumentLeg
QuoteRequestRejectAGOptionalinside QuotReqRjctGrp › QuotReqLegsGrp › InstrumentLeg
QuoteResponseAJOptionalinside LegQuotGrp › InstrumentLeg
QuoteStatusReportAIOptionalinside LegQuotStatGrp › InstrumentLeg
QuoteStatusRequestaOptionalinside InstrmtLegGrp › InstrumentLeg
RFQRequestAHOptionalinside RFQReqGrp › InstrmtLegGrp › InstrumentLeg
RequestForPositionsANOptionalinside InstrmtLegGrp › InstrumentLeg
RequestForPositionsAckAOOptionalinside InstrmtLegGrp › InstrumentLeg
SecurityDefinitiondOptionalinside InstrmtLegGrp › InstrumentLeg
SecurityDefinitionRequestcOptionalinside InstrmtLegGrp › InstrumentLeg
SecurityDefinitionUpdateReportBPOptionalinside InstrmtLegGrp › InstrumentLeg
SecurityListyOptionalinside SecListGrp › InstrmtLegSecListGrp › InstrumentLeg
SecurityListRequestxOptionalinside InstrmtLegGrp › InstrumentLeg
SecurityListUpdateReportBKOptionalinside SecLstUpdRelSymGrp › SecLstUpdRelSymsLegGrp › InstrumentLeg
SecurityStatusfOptionalinside InstrmtLegGrp › InstrumentLeg
SecurityStatusRequesteOptionalinside InstrmtLegGrp › InstrumentLeg
TradeCaptureReportAEOptionalinside TrdInstrmtLegGrp › InstrumentLeg
TradeCaptureReportAckAROptionalinside TrdInstrmtLegGrp › InstrumentLeg
TradeCaptureReportRequestADOptionalinside InstrmtLegGrp › InstrumentLeg
TradeCaptureReportRequestAckAQOptionalinside InstrmtLegGrp › InstrumentLeg

Wire format

A whole number, optionally signed. Leading zeros are legal on the wire and are preserved in the raw value. @boarteam/fix parses the value as a number and reports parse/invalid-int when it does not lex as one; the raw string is kept either way.

Read tag 1420 in TypeScript

decode.tsts
import { createFixEngine } from "@boarteam/fix";import { dictionary } from "@boarteam/fix-dict-fix50sp2";const fix = createFixEngine(dictionary);const { message, issues } = fix.parse(raw);const field = message.fields[1420];field?.name;   // "LegExerciseStyle"field?.raw;    // the verbatim wire stringfield?.value;  // coerced to a number

Other int 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-fix50sp2