NoContraBrokers (FIX tag 382)

NumInGroupFIX 4.4FIX 4.2group counter

NoContraBrokers (tag 382) is a NumInGroup field defined in FIX 4.4 and FIX 4.2. It appears in 1 message type, always optionally. Its datatype is NumInGroup, which makes it a repeating-group counter: its value is the number of entries that follow, not a quantity in its own right.

At a glance

Tag: 382
Name: NoContraBrokers
Datatype: NumInGroup (int)
Dialects: FIX 4.4 and FIX 4.2
Messages: 1

What the specification says

FIX 4.4

The number of ContraBroker (375) entries.

FIX 4.2

The number of ContraBroker entries.

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

A real message using tag 382

ExecutionReport · FIX 4.4

Tag	Field	Wire value	Meaning
8	BeginString	FIX.4.4
9	BodyLength	163
35	MsgType	8	Execution Report
49	SenderCompID	BOARTEAM
56	TargetCompID	COUNTERPARTY
34	MsgSeqNum	2
52	SendingTime	20240101-12:00:00.000
37	OrderID	ORD-10042
382	NoContraBrokers2 entries	2	repeating group
375	ContraBroker	EXAMPLE
375	ContraBroker	EXAMPLE
17	ExecID	EXEC-88117
150	ExecType	0	New
39	OrdStatus	0	New
54	Side	1	Buy
151	LeavesQty	0
14	CumQty	1000000
6	AvgPx	1.09215
10	CheckSum	251

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 382 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
ExecutionReport	8	Optional	Optional	inside the ContraGrp component

Wire format

The number of entries in the repeating group that follows. The next field on the wire is the group's delimiter tag. @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 382 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);// NoContraBrokers is a group counter, so the entries live on message.groups —// NOT on message.fields. message.fields[382] is undefined.const entries = message.groups[382] ?? [];for (const entry of entries) {  // entry.fields is keyed by tag; entry.groups holds nested groups}

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