PegSecurityIDSource (FIX tag 1096)

StringFIX 5.0 SP2

PegSecurityIDSource (tag 1096) is a String field defined in FIX 5.0 SP2. It appears in 8 message types, always optionally.

At a glance

Tag: 1096
Name: PegSecurityIDSource
Datatype: String
Dialects: FIX 5.0 SP2
Messages: 8

What the specification says

Defines the identity of the security off whose prices the order will peg. Same values as SecurityIDSource (22)

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

A real message using tag 1096

NewOrderSingle · FIX 5.0 SP2

Tag	Field	Wire value	Meaning
8	BeginString	FIXT.1.1
9	BodyLength	124
35	MsgType	D	NewOrderSingle
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
1096	PegSecurityIDSource	EXAMPLE
10	CheckSum	092

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 1096 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	Requiredness	Where in the message
CrossOrderCancelReplaceRequest	t	Optional	inside the PegInstructions component
ExecutionReport	8	Optional	inside the PegInstructions component
MultilegOrderCancelReplace	AC	Optional	inside the PegInstructions component
NewOrderCross	s	Optional	inside the PegInstructions component
NewOrderList	E	Optional	inside ListOrdGrp › PegInstructions
NewOrderMultileg	AB	Optional	inside the PegInstructions component
NewOrderSingle	D	Optional	inside the PegInstructions component
OrderCancelReplaceRequest	G	Optional	inside the PegInstructions component

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 1096 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[1096];field?.name;   // "PegSecurityIDSource"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-fix50sp2

Try the decoder Source on GitHub