# Latest

**URL:** https://forum.fixtrading.org/latest.md

[Latest](https://forum.fixtrading.org/latest.md) · [Categories](https://forum.fixtrading.org/categories.md) · [Tags](https://forum.fixtrading.org/tags.md)

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## [Building the new FIX training syllabus](https://forum.fixtrading.org/t/building-the-new-fix-training-syllabus/18165)

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**Author:** [@sapnaswaly](https://forum.fixtrading.org/u/sapnaswaly)\
**Replies:** 0\
**Last updated:** [September 8, 2026, 7:37am UTC](https://forum.fixtrading.org/t/building-the-new-fix-training-syllabus/18165 "2026-09-08T07:37:43Z")

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Creating a space to discuss the new FIX training programme being set up by FIX Community. I’m open to hearing about gaps, what practitioners would want new joiners to know once they’ve been through the course.

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## [PUBLIC COMMENT PERIOD - FIX Recommended Practices for Margin Communication](https://forum.fixtrading.org/t/public-comment-period-fix-recommended-practices-for-margin-communication/18150)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [August 25, 2026, 10:43am UTC](https://forum.fixtrading.org/t/public-comment-period-fix-recommended-practices-for-margin-communication/18150 "2026-08-25T10:43:58Z")

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The Global Technical Committee has reviewed and preliminarily approved the proposal submitted by the FIX Post Trade Committee. This document provides recommended practices for margin communication between asset managers …

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## [PUBLIC COMMENT PERIOD - FIX Protocol Gap Analysis - Errors and Omissions August 2026](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-errors-and-omissions-august-2026/18149)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [August 25, 2026, 10:38am UTC](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-errors-and-omissions-august-2026/18149 "2026-08-25T10:38:23Z")

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The Global Technical Committee has reviewed and preliminarily approved proposal to make corrections for various errors and omissions detected in the supported versions of the FIX Protocol (FIX 4.2, FIX 4.4, FIX Latest). …

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## [Which FIX message type to use for a broker to communicate block details to, say, a matching utility](https://forum.fixtrading.org/t/which-fix-message-type-to-use-for-a-broker-to-communicate-block-details-to-say-a-matching-utility/18145)

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**Author:** [@fixtrading](https://forum.fixtrading.org/u/fixtrading)\
**Replies:** 0\
**Last updated:** [August 20, 2026, 2:40pm UTC](https://forum.fixtrading.org/t/which-fix-message-type-to-use-for-a-broker-to-communicate-block-details-to-say-a-matching-utility/18145 "2026-08-20T14:40:55Z")

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The FIX allocation and confirmation documentation (e.g., FIX 4.4 vol 5) covers ‘bilateral’ matching flows where asset mgrs send block details and allocations together to brokers who then match against their ‘block’. In a…

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## [RFQ Negotiation Time Extension](https://forum.fixtrading.org/t/rfq-negotiation-time-extension/18142)

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**Author:** [@willson](https://forum.fixtrading.org/u/willson)\
**Replies:** 0\
**Last updated:** [August 18, 2026, 2:48pm UTC](https://forum.fixtrading.org/t/rfq-negotiation-time-extension/18142 "2026-08-18T14:48:59Z")

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Is there an established industry standard or best practice for supporting RFQ negotiation time extensions using FIX Tag 126 (ExpireTime)? In our current workflow, whenever a negotiation is within 10 seconds of expiring,…

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## [Standardised Codes for Minor Currencies](https://forum.fixtrading.org/t/standardised-codes-for-minor-currencies/18133)

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**Author:** [@philipwhiuk](https://forum.fixtrading.org/u/philipwhiuk)\
**Replies:** 5\
**Last updated:** [August 15, 2026, 4:38am UTC](https://forum.fixtrading.org/t/standardised-codes-for-minor-currencies/18133 "2026-08-15T04:38:50Z")

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As a vendor we see quite a lot of inter-op with counter-parties who mostly use ISO 4217 currencies in tag 15 but have custom codes (e.g. USd, GBp) for trading with the Price specified in the minor currency. But it’s no…

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## [FIX Standard Errors and Omissions 2026](https://forum.fixtrading.org/t/fix-standard-errors-and-omissions-2026/18086)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 31\
**Last updated:** [August 12, 2026, 11:39am UTC](https://forum.fixtrading.org/t/fix-standard-errors-and-omissions-2026/18086 "2026-08-12T11:39:15Z")

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This thread is intended to capture errors and omissions discovered in the FIX Standard during 2026, e.g. misspellings or gaffes in the description. These will eventually be reviewed by the Global Technical Committee (GTC…

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## [MsgSeqNum too low on Logon](https://forum.fixtrading.org/t/msgseqnum-too-low-on-logon/18132)

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**Author:** [@joachim.albacke](https://forum.fixtrading.org/u/joachim.albacke)\
**Replies:** 2\
**Last updated:** [July 30, 2026, 1:41pm UTC](https://forum.fixtrading.org/t/msgseqnum-too-low-on-logon/18132 "2026-07-30T13:41:31Z")

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If an acceptor receives a Logon request with MsgSeqNum too low, the connection should be closed. However, it’s recommended to send a Logout (5) as a response Questions: what MsgSeqNum (34) should the Logout have if t…

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## [Meanings of values for fields 1640 and 945](https://forum.fixtrading.org/t/meanings-of-values-for-fields-1640-and-945/18114)

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**Author:** [@jkaye](https://forum.fixtrading.org/u/jkaye)\
**Replies:** 2\
**Last updated:** [July 23, 2026, 3:15pm UTC](https://forum.fixtrading.org/t/meanings-of-values-for-fields-1640-and-945/18114 "2026-07-23T15:15:50Z")

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This question concerns MarginReqmtInqStatus(1640), and indirectly CollInquiryStatus(945), which, according to EP102, uses the same list of values. The question is - what do the values mean? I can’t find anything in the d…

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## [PUBLIC COMMENT PERIOD - FIX Protocol Gap Analysis - Equity Issuance Phase 1A](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-equity-issuance-phase-1a/18131)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [July 16, 2026, 4:33pm UTC](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-equity-issuance-phase-1a/18131 "2026-07-16T16:33:25Z")

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The Global Technical Committee has reviewed and preliminarily approved the proposal submitted by the Equity Issuance Working Group. This document covers initial extensions of the FIX Protocol related to facilitate standa…

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## [The current fixmlschema\_FIXLatest\_EP305.zip contains only 50 of the 71 XSDs present in EP293 ](https://forum.fixtrading.org/t/the-current-fixmlschema-fixlatest-ep305-zip-contains-only-50-of-the-71-xsds-present-in-ep293/18130)

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**Author:** [@JHuff\_CFTC.gov](https://forum.fixtrading.org/u/JHuff_CFTC.gov)\
**Replies:** 1\
**Last updated:** [July 13, 2026, 12:36pm UTC](https://forum.fixtrading.org/t/the-current-fixmlschema-fixlatest-ep305-zip-contains-only-50-of-the-71-xsds-present-in-ep293/18130 "2026-07-13T12:36:23Z")

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The XSDs in fixmlschema\_FIXLatest\_EP305.zip downloaded today (July 9, 2026) do not self-validate because the zip is missing files (EP293 had 71 XSDs; EP305 currently has only 50.) I downloaded from Standards → Extension…

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## [How to configure a FIX session to operate with message recovery disabled](https://forum.fixtrading.org/t/how-to-configure-a-fix-session-to-operate-with-message-recovery-disabled/18126)

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**Author:** [@jkaye](https://forum.fixtrading.org/u/jkaye)\
**Replies:** 3\
**Last updated:** [July 8, 2026, 4:13pm UTC](https://forum.fixtrading.org/t/how-to-configure-a-fix-session-to-operate-with-message-recovery-disabled/18126 "2026-07-08T16:13:42Z")

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This is from a working group action - I tried AI and it couldn’t answer!

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## [PUBLIC COMMENT PERIOD - FIX Protocol Gap Analysis - Event Type Enhancements](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-event-type-enhancements/18125)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [July 6, 2026, 11:21am UTC](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-event-type-enhancements/18125 "2026-07-06T11:21:23Z")

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The Global Technical Committee has reviewed and preliminarily approved the proposal submitted by the CME Group. This document covers further extensions of the FIX Protocol related to events related to derivative instrume…

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## [PUBLIC COMMENT PERIOD - FIX Protocol Gap Analysis - Securities Lending Trade Enhancements Phase 2](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-securities-lending-trade-enhancements-phase-2/18121)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 1\
**Last updated:** [June 24, 2026, 3:22pm UTC](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-securities-lending-trade-enhancements-phase-2/18121 "2026-06-24T15:22:37Z")

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The Global Technical Committee has reviewed and preliminarily approved the proposal submitted by the Securities Lending Working Group. This document covers further extensions of the FIX Protocol related to facilitate sta…

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## [PUBLIC COMMENT PERIOD - FIX Protocol Gap Analysis - Errors and Omissions June 2026](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-errors-and-omissions-june-2026/18122)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [June 22, 2026, 11:09am UTC](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-errors-and-omissions-june-2026/18122 "2026-06-22T11:09:22Z")

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The Global Technical Committee has reviewed and preliminarily approved the proposal to make corrections for various errors and omissions detected in FIX Latest. The draft document now enters a public comment period in w…

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## [PUBLIC COMMENT PERIOD – Orchestra Version 1.1 RC3](https://forum.fixtrading.org/t/public-comment-period-orchestra-version-1-1-rc3/18113)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 1\
**Last updated:** [June 10, 2026, 4:45pm UTC](https://forum.fixtrading.org/t/public-comment-period-orchestra-version-1-1-rc3/18113 "2026-06-10T16:45:26Z")

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This proposal from the FIX Orchestra Subcommittee provides the details of the Orchestra Technical Standard Version 1.1 Release Candidate 3. It has been approved for public comment by the FIX Global Technical Committee. O…

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## [PUBLIC COMMENT PERIOD - FIX Protocol Gap Analysis - Outage Communication](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-outage-communication/18119)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [June 10, 2026, 11:56am UTC](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-outage-communication/18119 "2026-06-10T11:56:56Z")

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The Global Technical Committee has reviewed and preliminarily approved the proposal submitted by the FIX Outage Communication Working Group. This document covers extensions of the FIX Protocol related to communication of…

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## [PUBLIC COMMENT PERIOD - FIX Protocol Gap Analysis - New Market Order Type](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-new-market-order-type/18118)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [June 10, 2026, 11:53am UTC](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-new-market-order-type/18118 "2026-06-10T11:53:29Z")

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The Global Technical Committee has reviewed and preliminarily approved the proposal submitted by the CME Group. This document covers extensions of the FIX Protocol related to market order types. The draft document now e…

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## [FIX Discussion Forum has migrated](https://forum.fixtrading.org/t/fix-discussion-forum-has-migrated/18117)

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**Author:** [@ltaikit](https://forum.fixtrading.org/u/ltaikit)\
**Replies:** 0\
**Last updated:** [June 9, 2026, 8:20pm UTC](https://forum.fixtrading.org/t/fix-discussion-forum-has-migrated/18117 "2026-06-09T20:20:53Z")

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Dear FIX Discussion Forum Users, Recently the forum has migrated to an updated forum software due to the migration of the main FIX Trading Community website. As part of the forum data migration you are required to rese…

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## [MD tag for Executable QTY for bilateral matching?](https://forum.fixtrading.org/t/md-tag-for-executable-qty-for-bilateral-matching/18115)

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**Author:** [@gsmith](https://forum.fixtrading.org/u/gsmith)\
**Replies:** 3\
**Last updated:** [June 8, 2026, 1:49pm UTC](https://forum.fixtrading.org/t/md-tag-for-executable-qty-for-bilateral-matching/18115 "2026-06-08T13:49:40Z")

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Hi all. I’m looking for guidance on how best to represent “executable quantity” in FIX market data for a bilateral matching instrument. Bilateral matching means that firms can only trade with counterparties for which th…

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## [PUBLIC COMMENT PERIOD - FIX Protocol Gap Analysis - Algo Certification Enhancements Part 2](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-algo-certification-enhancements-part-2/18110)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [April 29, 2026, 3:11pm UTC](https://forum.fixtrading.org/t/public-comment-period-fix-protocol-gap-analysis-algo-certification-enhancements-part-2/18110 "2026-04-29T15:11:16Z")

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The Global Technical Committee has reviewed and preliminarily approved the proposal submitted by the FIX Algo Working Group. This document covers extensions of the FIX Protocol related to algo certification and testing. …

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## [Unable to download EP300](https://forum.fixtrading.org/t/unable-to-download-ep300/18107)

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**Author:** [@rahulmohanraj](https://forum.fixtrading.org/u/rahulmohanraj)\
**Replies:** 3\
**Last updated:** [April 14, 2026, 4:07pm UTC](https://forum.fixtrading.org/t/unable-to-download-ep300/18107 "2026-04-14T16:07:57Z")

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Hi Team, We are under the process of upgrading the FIX extension pack. We are unable to download any documentation regarding EP300 and it is returning “Sorry! File not found!”. It would be great if you could fix thi…

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## [GTC Update: FIX Latest enhanced support of rate sources (EP302)](https://forum.fixtrading.org/t/gtc-update-fix-latest-enhanced-support-of-rate-sources-ep302/18103)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [March 31, 2026, 2:56pm UTC](https://forum.fixtrading.org/t/gtc-update-fix-latest-enhanced-support-of-rate-sources-ep302/18103 "2026-03-31T14:56:32Z")

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FIX has long supported the ability to identifying the fixing source and information used to determine the rate for FX NDFs and FX forwards. The existing RateSource component has now been added to the following FIX messag…

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## [GTC Update: Supported Versions of the FIX Protocol](https://forum.fixtrading.org/t/gtc-update-supported-versions-of-the-fix-protocol/18098)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [March 18, 2026, 8:13pm UTC](https://forum.fixtrading.org/t/gtc-update-supported-versions-of-the-fix-protocol/18098 "2026-03-18T20:13:10Z")

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The list of supported versions of the FIX Protocol now includes only FIX 4.2, FIX 4.4 and FIX Latest. There is a machine-readable version for all three of them in form of an Orchestra XML file maintained by the GTC. FIX …

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## [Execution report reject after an acknowledgment](https://forum.fixtrading.org/t/execution-report-reject-after-an-acknowledgment/18083)

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**Author:** [@coocz](https://forum.fixtrading.org/u/coocz)\
**Replies:** 7\
**Last updated:** [February 19, 2026, 11:59am UTC](https://forum.fixtrading.org/t/execution-report-reject-after-an-acknowledgment/18083 "2026-02-19T11:59:55Z")

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On FIX 4.2 version, I would like to have the confirmation that the following workflow is not FIX compliant : 1 - Order new sent 2 - Execution report new received containing tags 39=0 and 150=0 3 - Later, execution rep…

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## [GTC Update: FIX Latest enhanced to support securities lending (EP301)](https://forum.fixtrading.org/t/gtc-update-fix-latest-enhanced-to-support-securities-lending-ep301/18082)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [February 13, 2026, 4:57pm UTC](https://forum.fixtrading.org/t/gtc-update-fix-latest-enhanced-to-support-securities-lending-ep301/18082 "2026-02-13T16:57:45Z")

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Extension Pack 301 covers extensions needed to support trading of securities lending contracts for US Equities and US Corporate DTCC eligible DVP US Cash Collateral contracts. See the GTC Update for details and the EP d…

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## [Quoted price inclusive or exclusive of platform fee](https://forum.fixtrading.org/t/quoted-price-inclusive-or-exclusive-of-platform-fee/18072)

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**Author:** [@akumar](https://forum.fixtrading.org/u/akumar)\
**Replies:** 3\
**Last updated:** [January 30, 2026, 2:33pm UTC](https://forum.fixtrading.org/t/quoted-price-inclusive-or-exclusive-of-platform-fee/18072 "2026-01-30T14:33:24Z")

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I am trying to understand the market practice or general guidance around whether the price quoted in an RFQ should exclude any type of fees (e.g. platform fee, clearing fee) or should it be an all-in pricing? FIX does p…

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## [Trade Capture Report Request - TrdCapDtGrp semantics](https://forum.fixtrading.org/t/trade-capture-report-request-trdcapdtgrp-semantics/18073)

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**Author:** [@davidcgibbs](https://forum.fixtrading.org/u/davidcgibbs)\
**Replies:** 3\
**Last updated:** [January 28, 2026, 9:27pm UTC](https://forum.fixtrading.org/t/trade-capture-report-request-trdcapdtgrp-semantics/18073 "2026-01-28T21:27:15Z")

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I’m uncertain of the semantics for TrdCapDtGrp. There is TradeDate and LastUpdateTime. It does not seem intended that the group be used for a date and time interval like from-to. One could document such a use in an ROE …

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## [How to differentiate outright / pledged repo](https://forum.fixtrading.org/t/how-to-differentiate-outright-pledged-repo/18075)

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**Author:** [@nicolelai](https://forum.fixtrading.org/u/nicolelai)\
**Replies:** 0\
**Last updated:** [January 28, 2026, 3:51pm UTC](https://forum.fixtrading.org/t/how-to-differentiate-outright-pledged-repo/18075 "2026-01-28T15:51:58Z")

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Hi, When sending a quote with 167=“REPO”, which tag should be used to indicate whether collateral ownership is transferred (i.e., pledged vs. outright)? For pledged repo, title remains with the seller, whereas for outri…

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## [GTC Update: Discontinuation of the FIX Basic Repository format effective March 31, 2026](https://forum.fixtrading.org/t/gtc-update-discontinuation-of-the-fix-basic-repository-format-effective-march-31-2026/18068)

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**Author:** [@gtcpm](https://forum.fixtrading.org/u/gtcpm)\
**Replies:** 0\
**Last updated:** [January 22, 2026, 9:13pm UTC](https://forum.fixtrading.org/t/gtc-update-discontinuation-of-the-fix-basic-repository-format-effective-march-31-2026/18068 "2026-01-22T21:13:24Z")

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The machine-readable version of FIX Latest is currently still provided in three different repository formats. The oldest (30 years) is the Basic Repository format and will no longer be provided as part of FIX Extension P…

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