ExpireDate (FIX tag 432)

LocalMktDateFIX 4.4FIX 4.2

ExpireDate (tag 432) is a LocalMktDate field defined in FIX 4.4 and FIX 4.2. It appears in 11 message types, always optionally.

At a glance

Tag: 432
Name: ExpireDate
Datatype: LocalMktDate (String)
Format: YYYYMMDD
Dialects: FIX 4.4 and FIX 4.2
Messages: 11

What the specification says

Date of order expiration (last day the order can trade), always expressed in terms of the local market date. The time at which the order expires is determined by the local market’s business practices

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

A real message using tag 432

NewOrderSingle · FIX 4.4

Tag	Field	Wire value	Meaning
8	BeginString	FIX.4.4
9	BodyLength	124
35	MsgType	D	Order – Single
49	SenderCompID	BOARTEAM
56	TargetCompID	COUNTERPARTY
34	MsgSeqNum	2
52	SendingTime	20240101-12:00:00.000
11	ClOrdID	ORD-10042
54	Side	1	Buy
60	TransactTime	20240101-12:00:00.000
40	OrdType	1	Market
432	ExpireDate	20240101
10	CheckSum	085

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 432 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.

Message	MsgType	FIX 4.4	FIX 4.2	Where in the message
AssignmentReport	AW	Optional	—	directly on the message body
CrossOrderCancelReplaceRequest	t	Conditional	—	directly on the message body
ExecutionReport	8	Conditional	Optional	directly on the message body
MarketDataIncrementalRefresh	X	Conditional	Optional	inside the MDIncGrp component
MarketDataSnapshotFullRefresh	W	Conditional	Optional	inside the MDFullGrp component
MultilegOrderCancelReplace	AC	Conditional	—	directly on the message body
NewOrderCross	s	Conditional	—	directly on the message body
NewOrderList	E	Conditional	Optional	inside the ListOrdGrp component
NewOrderMultileg	AB	Conditional	—	directly on the message body
NewOrderSingle	D	Conditional	Optional	directly on the message body
OrderCancelReplaceRequest	G	Conditional	Optional	directly on the message body

Wire format

A calendar date in the market's local timezone, with no time component and no offset. @boarteam/fix keeps the value as a string; format rules are checked by validate(), which reports validate/invalid-value rather than throwing.

Read tag 432 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[432];field?.name;   // "ExpireDate"field?.raw;    // the verbatim wire stringfield?.value;  // coerced to a string

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

Try the decoder Source on GitHub