LegBenchmarkCurvePoint (FIX tag 678)

StringFIX 4.4

LegBenchmarkCurvePoint (tag 678) is a String field defined in FIX 4.4. It appears in 5 message types, always optionally.

At a glance

Tag: 678
Name: LegBenchmarkCurvePoint
Datatype: String
Dialects: FIX 4.4
Messages: 5

What the specification says

Identifies the point on the Leg Benchmark Curve. See BenchmarkCurvePoint (222) for description and valid values.

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

A real message using tag 678

Quote · FIX 4.4

Tag	Field	Wire value	Meaning
8	BeginString	FIX.4.4
9	BodyLength	129
35	MsgType	S	Quote
49	SenderCompID	BOARTEAM
56	TargetCompID	COUNTERPARTY
34	MsgSeqNum	2
52	SendingTime	20240101-12:00:00.000
117	QuoteID	EXAMPLE
555	NoLegs2 entries	2	repeating group
600	LegSymbol	EXAMPLE
678	LegBenchmarkCurvePoint	EXAMPLE
600	LegSymbol	EXAMPLE
678	LegBenchmarkCurvePoint	EXAMPLE
10	CheckSum	148

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 678 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
Quote	S	Optional	inside LegQuotGrp › LegBenchmarkCurveData
QuoteRequest	R	Optional	inside QuotReqGrp › QuotReqLegsGrp › LegBenchmarkCurveData
QuoteRequestReject	AG	Optional	inside QuotReqRjctGrp › QuotReqLegsGrp › LegBenchmarkCurveData
QuoteResponse	AJ	Optional	inside LegQuotGrp › LegBenchmarkCurveData
SecurityList	y	Optional	inside SecListGrp › InstrmtLegSecListGrp › LegBenchmarkCurveData

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 678 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[678];field?.name;   // "LegBenchmarkCurvePoint"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