NoUnderlyingSecurityAltID (FIX tag 457)

At a glance

Tag

457

Name

NoUnderlyingSecurityAltID

Datatype

NumInGroup (int)

Dialects

FIX 4.4 and FIX 5.0 SP2

Messages

59

What the specification says

Number of UnderlyingSecurityAltID (458) entries.

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

A real message using tag 457

Where tag 457 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.

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 457 in TypeScript

import { createFixEngine } from "@boarteam/fix";import { dictionary } from "@boarteam/fix-dict-fix44";​const fix = createFixEngine(dictionary);const { message, issues } = fix.parse(raw);​// NoUnderlyingSecurityAltID is a group counter, so the entries live on message.groups —// NOT on message.fields. message.fields[457] is undefined.const entries = message.groups[457] ?? [];for (const entry of entries) {  // entry.fields is keyed by tag; entry.groups holds nested groups}

Other NumInGroup fields

• 454NoSecurityAltID
• 453NoPartyIDs
• 473NoRegistDtls
• 428NoStrikes
• 420NoBidComponents
• 510NoDistribInsts
• 398NoBidDescriptors
• 518NoContAmts
• 386NoTradingSessions
• 384NoMsgTypes
• 382NoContraBrokers
• 534NoAffectedOrders
• 539NoNestedPartyIDs
• 552NoSides
• 555NoLegs
• 558NoSecurityTypes
• 576NoClearingInstructions
• 580NoDates
• 604NoLegSecurityAltID
• 296NoQuoteSets
• 295NoQuoteEntries
• 627NoHops
• 268NoMDEntries
• 267NoMDEntryTypes