{"id":55535,"date":"2019-11-13T22:40:32","date_gmt":"2019-11-13T21:40:32","guid":{"rendered":"https:\/\/www.fixtrading.org\/?page_id=55535"},"modified":"2026-03-18T19:26:06","modified_gmt":"2026-03-18T19:26:06","slug":"online-specification","status":"publish","type":"page","link":"https:\/\/www.fixtrading.org\/online-specification\/","title":{"rendered":"FIX Latest Online Specification"},"content":{"rendered":"<style type=\"text\/css\"> \n#cmsmasters_row_69ceb840a5ae29_31665088 .cmsmasters_row_outer_parent { \n\tpadding-top: 50px; \n} \n\n#cmsmasters_row_69ceb840a5ae29_31665088 .cmsmasters_row_outer_parent { \n\tpadding-bottom: 50px; \n} \n\n \n#cmsmasters_heading_69ceb840a5bd94_24563088 { \n\ttext-align:left; \n\tmargin-top:0px; \n\tmargin-bottom:0px; \n} \n\n#cmsmasters_heading_69ceb840a5bd94_24563088 .cmsmasters_heading { \n\ttext-align:left; \n} \n\n#cmsmasters_heading_69ceb840a5bd94_24563088 .cmsmasters_heading, #cmsmasters_heading_69ceb840a5bd94_24563088 .cmsmasters_heading a { \n\tfont-weight:bold; 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\n} \n\n#cmsmasters_heading_69ceb840a65d55_80813223 .cmsmasters_heading, #cmsmasters_heading_69ceb840a65d55_80813223 .cmsmasters_heading a { \n\tfont-weight:bold; \n\tfont-style:normal; \n} \n\n#cmsmasters_heading_69ceb840a65d55_80813223 .cmsmasters_heading_divider { \n\tborder-bottom-width:8px; \n\tborder-bottom-style:solid; \n\tmargin-top:-4px; \n} \n\n<\/style><div id=\"cmsmasters_row_69ceb840a5ae29_31665088\" class=\"cmsmasters_row cmsmasters_color_scheme_default cmsmasters_row_top_default cmsmasters_row_bot_default cmsmasters_row_boxed\">\n<div class=\"cmsmasters_row_outer_parent\">\n<div class=\"cmsmasters_row_outer\">\n<div class=\"cmsmasters_row_inner\">\n<div class=\"cmsmasters_row_margin\">\n<div class=\"cmsmasters_column one_first\">\n\n<div id=\"cmsmasters_heading_69ceb840a5bd94_24563088\" class=\"cmsmasters_heading_wrap cmsmasters_heading_align_left\">\n\t<h1 class=\"cmsmasters_heading\">FIX Protocol Online Specification<\/h1>\n<\/div>\n<div id=\"cmsmasters_heading_69ceb840a5c0e1_46783472\" class=\"cmsmasters_heading_wrap cmsmasters_heading_align_left\">\n\t<h4 class=\"cmsmasters_heading\">FIX Latest, as of extension pack EP284<\/h4>\n<\/div><div class=\"cmsmasters_text\">\n<p>The FIX Protocol is a messaging specification for the electronic communication of trading-related messages.<\/p>\n<p>This is the starting page for FIX Latest, the specification of the application layer of the FIX Protocol. This provides the normative specification and is based on the previous specification documents \u201cFIX Version 5.0 Service Pack 2 Specification with 20110818 Errata\u201d (aka \u201cVolume 1-7\u201d) and the accumulation of all <a href=\"https:\/\/www.fixtrading.org\/extension-packs\/\">Extension Packs<\/a>.<\/p>\n<p><a href=\"https:\/\/creativecommons.org\/licenses\/by-nd\/4.0\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-58373\" src=\"https:\/\/www.fixtrading.org\/wp-content\/uploads\/2020\/06\/CC-License.png\" alt=\"\" width=\"88\" height=\"31\" \/><\/a><br \/>\nFIX Technical Standard Specifications by FIX Protocol Ltd. are licensed under a\u00a0<a href=\"https:\/\/creativecommons.org\/licenses\/by-nd\/4.0\/\">Creative Commons Attribution-NoDerivatives 4.0 International License<\/a>.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"cmsmasters_row_69ceb840a5cc28_11610638\" class=\"cmsmasters_row cmsmasters_color_scheme_default cmsmasters_row_top_default cmsmasters_row_bot_default cmsmasters_row_boxed\">\n<div class=\"cmsmasters_row_outer_parent\">\n<div class=\"cmsmasters_row_outer\">\n<div class=\"cmsmasters_row_inner\">\n<div class=\"cmsmasters_row_margin\">\n<div class=\"cmsmasters_column one_first online-spec-box\">\n<div class=\"cmsmasters_text\">\n<h2 style=\"text-align: center;\"><strong>Introduction<\/strong><\/h2>\n<p style=\"text-align: center;\">Data Types, User-Defined Fields, Global Components<\/p>\n<\/div>\n\n<div id=\"cmsmasters_button_69ceb840a5dc26_60358532\" class=\"button_wrap\"><a href=\"\/online-specification\/introduction\/\" class=\"cmsmasters_button\"><span>Specification<\/span><\/a><\/div>\n\n<div id=\"cmsmasters_divider_69ceb840a5de66_45465858\" class=\"cl\"><\/div>\n\n<div id=\"cmsmasters_button_69ceb840a5e021_64139286\" class=\"button_wrap\"><a href=\"\/online-specification\/global-components\/\" class=\"cmsmasters_button\"><span>Global Components<\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"cmsmasters_row_69ceb840a5e498_71287555\" class=\"cmsmasters_row cmsmasters_color_scheme_default cmsmasters_row_top_default cmsmasters_row_bot_default cmsmasters_row_boxed\">\n<div class=\"cmsmasters_row_outer_parent\">\n<div class=\"cmsmasters_row_outer\">\n<div class=\"cmsmasters_row_inner\">\n<div class=\"cmsmasters_row_margin\">\n<div class=\"cmsmasters_column one_third online-spec-box\">\n<div class=\"cmsmasters_text\">\n<h2 style=\"text-align: center;\"><strong>Pre-Trade<\/strong><\/h2>\n<p style=\"text-align: center;\">Indication<br \/>\nEvent Communication<br \/>\nQuotation Negotiation<\/p>\n<p style=\"text-align: center;\">Market Data<br \/>\nSecurities Reference Data<br \/>\nMarket Structure Reference Data<\/p>\n<\/div>\n\n<div id=\"cmsmasters_button_69ceb840a5f302_31583344\" class=\"button_wrap\"><a href=\"\/online-specification\/business-area-pretrade\/\" class=\"cmsmasters_button\"><span>Specification<\/span><\/a><\/div>\n\n<div id=\"cmsmasters_divider_69ceb840a5f4b7_93086104\" class=\"cl\"><\/div>\n\n<div id=\"cmsmasters_button_69ceb840a5f653_79498274\" class=\"button_wrap\"><a href=\"\/online-specification\/pre-trade-appendix\/\" class=\"cmsmasters_button\"><span>Messages &amp; Components<\/span><\/a><\/div>\n<\/div>\n<div class=\"cmsmasters_column one_third online-spec-box\">\n<div class=\"cmsmasters_text\">\n<h2 style=\"text-align: center;\"><strong>Trade<\/strong><\/h2>\n<p style=\"text-align: center;\">Single General Order Handling<br \/>\nProgram Trading<br \/>\nOrder Mass Handling<br \/>\nCross Orders<br \/>\nMultileg Orders<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n\n<div id=\"cmsmasters_button_69ceb840a60422_91122794\" class=\"button_wrap\"><a href=\"\/online-specification\/business-area-trade\/\" class=\"cmsmasters_button\"><span>Specification<\/span><\/a><\/div>\n\n<div id=\"cmsmasters_divider_69ceb840a605b2_30873388\" class=\"cl\"><\/div>\n\n<div id=\"cmsmasters_button_69ceb840a60745_85640727\" class=\"button_wrap\"><a href=\"\/online-specification\/trade-appendix\/\" class=\"cmsmasters_button\"><span>Messages &amp; Components<\/span><\/a><\/div>\n<\/div>\n<div class=\"cmsmasters_column one_third online-spec-box\">\n<div class=\"cmsmasters_text\">\n<h2 style=\"text-align: center;\"><strong>Post-Trade<\/strong><\/h2>\n<p style=\"text-align: center;\">Allocation<br \/>\nSettlement Instruction<br \/>\nRegistration Instruction<br \/>\nTrade Capture<br \/>\nConfirmation<br \/>\nPosition Maintenance<br \/>\nCollateral Management<\/p>\n<\/div>\n\n<div id=\"cmsmasters_button_69ceb840a61462_43332473\" class=\"button_wrap\"><a href=\"\/online-specification\/business-area-posttrade\/\" class=\"cmsmasters_button\"><span>Specification<\/span><\/a><\/div>\n\n<div id=\"cmsmasters_divider_69ceb840a61606_33024086\" class=\"cl\"><\/div>\n\n<div id=\"cmsmasters_button_69ceb840a61782_90924808\" class=\"button_wrap\"><a href=\"\/online-specification\/post-trade-appendix\/\" class=\"cmsmasters_button\"><span>Messages &amp; Components<\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"cmsmasters_row_69ceb840a61b99_06218596\" class=\"cmsmasters_row cmsmasters_color_scheme_default cmsmasters_row_top_default cmsmasters_row_bot_default cmsmasters_row_boxed\">\n<div class=\"cmsmasters_row_outer_parent\">\n<div class=\"cmsmasters_row_outer\">\n<div class=\"cmsmasters_row_inner\">\n<div class=\"cmsmasters_row_margin\">\n<div class=\"cmsmasters_column one_first online-spec-box\">\n<div class=\"cmsmasters_text\">\n<h2 style=\"text-align: center;\"><strong>Infrastructure<\/strong><\/h2>\n<p style=\"text-align: center;\">Business Rejects, Network Status, User Management, Application Sequencing<\/p>\n<\/div>\n\n<div id=\"cmsmasters_button_69ceb840a625c7_57364872\" class=\"button_wrap\"><a href=\"\/online-specification\/business-area-infrastructure\/\" class=\"cmsmasters_button\"><span>Specification<\/span><\/a><\/div>\n\n<div id=\"cmsmasters_divider_69ceb840a62744_86308721\" class=\"cl\"><\/div>\n\n<div id=\"cmsmasters_button_69ceb840a628d4_72972659\" class=\"button_wrap\"><a href=\"\/online-specification\/infrastructure-appendix\/\" class=\"cmsmasters_button\"><span>Messages &amp; Components<\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"cmsmasters_row_69ceb840a62e65_79320871\" class=\"cmsmasters_row cmsmasters_color_scheme_default cmsmasters_row_top_default cmsmasters_row_bot_default cmsmasters_row_boxed\">\n<div class=\"cmsmasters_row_outer_parent\">\n<div class=\"cmsmasters_row_outer\">\n<div class=\"cmsmasters_row_inner\">\n<div class=\"cmsmasters_row_margin\">\n<div class=\"cmsmasters_column one_first\">\n\n<div id=\"cmsmasters_heading_69ceb840a65d55_80813223\" class=\"cmsmasters_heading_wrap cmsmasters_heading_align_center cmsmasters_heading_divider_medium\">\n\t<span class=\"cmsmasters_heading_divider_left_wrap\"><span class=\"cmsmasters_heading_divider cmsmasters_heading_divider_left\"><\/span><\/span>\n<h2 class=\"cmsmasters_heading\">Downloads<\/h2>\n<span class=\"cmsmasters_heading_divider_right_wrap\"><span class=\"cmsmasters_heading_divider cmsmasters_heading_divider_right\"><\/span><\/span>\n<\/div><div class=\"cmsmasters_text\">\n<div class='w3eden'>\n    <div class=''>\n\n        \n        <div id=\"content_wpdm_package_1\">\n            <div class='row'><div class='col-lg-12 col-md-12 col-12'><div class=\"well c2a3\">\n    <div class=\"media\">\n        <div class=\"mr-3\" align=\"left\">\n            <img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\"   src=\"https:\/\/www.fixtrading.org\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.png\" \/>\n        <\/div>\n        <div class=\"media-body\">\n            <h3 class=\"media-heading\" style=\"padding-top: 0px;border:0px;margin: 0 0 5px 0;font-size:12pt; \">\n                <a style=\"font-weight: 700; color: #255e95;\" href=\"https:\/\/www.fixtrading.org\/packages\/time-precision-technical-addendum\/\">Time Precision Technical Addendum<\/a>\n                <span style=\"font-size:8pt;font-weight:300\" class=\"text-muted ml-4\">\n                    <i class=\"fas fa-hdd mr-1\"><\/i> 580.93 KB\n                    <i class=\"ml-3 far fa-arrow-alt-circle-down mr-1\"><\/i> 6031 downloads \n                    <i class=\"ml-3 far fa-clock mr-1\"><\/i> February 24, 2017\n                <\/span>\n            <\/h3>\n            Time Precision Technical Addendum.\nThis Technical Addendum addresses the time precision granularity by extending the FIX data type for timestamps to picoseconds.\u00a0 The Technical Addendum is applicable...<\/br>\n        <\/div>\n        <div class=\"ml-3\" align=\"right\">\n            <a class='wpdm-download-link download-on-click btn btn-primary btn-lg'  rel='nofollow' href='#' data-downloadurl=\"https:\/\/www.fixtrading.org\/packages\/time-precision-technical-addendum\/?wpdmdl=32099&refresh=69ceb840ad1c11775155264\">Download<\/a>\n        <\/div>\n    <\/div>\n\n<\/div><\/div><div class='col-lg-12 col-md-12 col-12'><div class=\"well c2a3\">\n    <div class=\"media\">\n        <div class=\"mr-3\" align=\"left\">\n            <img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\"   src=\"https:\/\/www.fixtrading.org\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.png\" \/>\n        <\/div>\n        <div class=\"media-body\">\n            <h3 class=\"media-heading\" style=\"padding-top: 0px;border:0px;margin: 0 0 5px 0;font-size:12pt; \">\n                <a style=\"font-weight: 700; color: #255e95;\" href=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-order-state-changes\/\">FIX Latest Specification - Order State Changes<\/a>\n                <span style=\"font-size:8pt;font-weight:300\" class=\"text-muted ml-4\">\n                    <i class=\"fas fa-hdd mr-1\"><\/i> 1.2 MB\n                    <i class=\"ml-3 far fa-arrow-alt-circle-down mr-1\"><\/i> 3142 downloads \n                    <i class=\"ml-3 far fa-clock mr-1\"><\/i> November 19, 2023\n                <\/span>\n            <\/h3>\n            Normative specification of the order state changes of FIX Latest.\n...<\/br>\n        <\/div>\n        <div class=\"ml-3\" align=\"right\">\n            <a class='wpdm-download-link download-on-click btn btn-primary btn-lg'  rel='nofollow' href='#' data-downloadurl=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-order-state-changes\/?wpdmdl=55774&refresh=69ceb843558831775155267\">Download<\/a>\n        <\/div>\n    <\/div>\n\n<\/div><\/div><div class='col-lg-12 col-md-12 col-12'><div class=\"well c2a3\">\n    <div class=\"media\">\n        <div class=\"mr-3\" align=\"left\">\n            <img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\"   src=\"https:\/\/www.fixtrading.org\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.png\" \/>\n        <\/div>\n        <div class=\"media-body\">\n            <h3 class=\"media-heading\" style=\"padding-top: 0px;border:0px;margin: 0 0 5px 0;font-size:12pt; \">\n                <a style=\"font-weight: 700; color: #255e95;\" href=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-specification-infrastructure\/\">FIX Latest Specification - Infrastructure<\/a>\n                <span style=\"font-size:8pt;font-weight:300\" class=\"text-muted ml-4\">\n                    <i class=\"fas fa-hdd mr-1\"><\/i> 743 KB\n                    <i class=\"ml-3 far fa-arrow-alt-circle-down mr-1\"><\/i> 2166 downloads \n                    <i class=\"ml-3 far fa-clock mr-1\"><\/i> November 19, 2023\n                <\/span>\n            <\/h3>\n            Normative specification of the infrastructure business area of FIX Latest.\n...<\/br>\n        <\/div>\n        <div class=\"ml-3\" align=\"right\">\n            <a class='wpdm-download-link download-on-click btn btn-primary btn-lg'  rel='nofollow' href='#' data-downloadurl=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-specification-infrastructure\/?wpdmdl=55605&refresh=69ceb8462b4b71775155270\">Download<\/a>\n        <\/div>\n    <\/div>\n\n<\/div><\/div><div class='col-lg-12 col-md-12 col-12'><div class=\"well c2a3\">\n    <div class=\"media\">\n        <div class=\"mr-3\" align=\"left\">\n            <img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\"   src=\"https:\/\/www.fixtrading.org\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.png\" \/>\n        <\/div>\n        <div class=\"media-body\">\n            <h3 class=\"media-heading\" style=\"padding-top: 0px;border:0px;margin: 0 0 5px 0;font-size:12pt; \">\n                <a style=\"font-weight: 700; color: #255e95;\" href=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-specification-introduction\/\">FIX Latest Specification - Introduction<\/a>\n                <span style=\"font-size:8pt;font-weight:300\" class=\"text-muted ml-4\">\n                    <i class=\"fas fa-hdd mr-1\"><\/i> 5.6 MB\n                    <i class=\"ml-3 far fa-arrow-alt-circle-down mr-1\"><\/i> 3885 downloads \n                    <i class=\"ml-3 far fa-clock mr-1\"><\/i> November 19, 2023\n                <\/span>\n            <\/h3>\n            Introduction to FIX Latest and layouts of global components.\n...<\/br>\n        <\/div>\n        <div class=\"ml-3\" align=\"right\">\n            <a class='wpdm-download-link download-on-click btn btn-primary btn-lg'  rel='nofollow' href='#' data-downloadurl=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-specification-introduction\/?wpdmdl=55597&refresh=69ceb848909a21775155272\">Download<\/a>\n        <\/div>\n    <\/div>\n\n<\/div><\/div><div class='col-lg-12 col-md-12 col-12'><div class=\"well c2a3\">\n    <div class=\"media\">\n        <div class=\"mr-3\" align=\"left\">\n            <img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\"   src=\"https:\/\/www.fixtrading.org\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.png\" \/>\n        <\/div>\n        <div class=\"media-body\">\n            <h3 class=\"media-heading\" style=\"padding-top: 0px;border:0px;margin: 0 0 5px 0;font-size:12pt; \">\n                <a style=\"font-weight: 700; color: #255e95;\" href=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-specification-pre-trade\/\">FIX Latest Specification - Pre-Trade<\/a>\n                <span style=\"font-size:8pt;font-weight:300\" class=\"text-muted ml-4\">\n                    <i class=\"fas fa-hdd mr-1\"><\/i> 5.4 MB\n                    <i class=\"ml-3 far fa-arrow-alt-circle-down mr-1\"><\/i> 2552 downloads \n                    <i class=\"ml-3 far fa-clock mr-1\"><\/i> November 19, 2023\n                <\/span>\n            <\/h3>\n            Normative specification of the pre-trade business area of FIX Latest.\n...<\/br>\n        <\/div>\n        <div class=\"ml-3\" align=\"right\">\n            <a class='wpdm-download-link download-on-click btn btn-primary btn-lg'  rel='nofollow' href='#' data-downloadurl=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-specification-pre-trade\/?wpdmdl=55601&refresh=69ceb84a268541775155274\">Download<\/a>\n        <\/div>\n    <\/div>\n\n<\/div><\/div><div class='col-lg-12 col-md-12 col-12'><div class=\"well c2a3\">\n    <div class=\"media\">\n        <div class=\"mr-3\" align=\"left\">\n            <img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\"   src=\"https:\/\/www.fixtrading.org\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.png\" \/>\n        <\/div>\n        <div class=\"media-body\">\n            <h3 class=\"media-heading\" style=\"padding-top: 0px;border:0px;margin: 0 0 5px 0;font-size:12pt; \">\n                <a style=\"font-weight: 700; color: #255e95;\" href=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-specification-post-trade\/\">FIX Latest Specification - Post-Trade<\/a>\n                <span style=\"font-size:8pt;font-weight:300\" class=\"text-muted ml-4\">\n                    <i class=\"fas fa-hdd mr-1\"><\/i> 4.7 MB\n                    <i class=\"ml-3 far fa-arrow-alt-circle-down mr-1\"><\/i> 2479 downloads \n                    <i class=\"ml-3 far fa-clock mr-1\"><\/i> November 19, 2023\n                <\/span>\n            <\/h3>\n            Normative specification of the post-trade business area of FIX Latest.\n...<\/br>\n        <\/div>\n        <div class=\"ml-3\" align=\"right\">\n            <a class='wpdm-download-link download-on-click btn btn-primary btn-lg'  rel='nofollow' href='#' data-downloadurl=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-specification-post-trade\/?wpdmdl=55604&refresh=69ceb84bc3a131775155275\">Download<\/a>\n        <\/div>\n    <\/div>\n\n<\/div><\/div><div class='col-lg-12 col-md-12 col-12'><div class=\"well c2a3\">\n    <div class=\"media\">\n        <div class=\"mr-3\" align=\"left\">\n            <img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\"   src=\"https:\/\/www.fixtrading.org\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.png\" \/>\n        <\/div>\n        <div class=\"media-body\">\n            <h3 class=\"media-heading\" style=\"padding-top: 0px;border:0px;margin: 0 0 5px 0;font-size:12pt; \">\n                <a style=\"font-weight: 700; color: #255e95;\" href=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-specification-trade\/\">FIX Latest Specification - Trade<\/a>\n                <span style=\"font-size:8pt;font-weight:300\" class=\"text-muted ml-4\">\n                    <i class=\"fas fa-hdd mr-1\"><\/i> 3.2 MB\n                    <i class=\"ml-3 far fa-arrow-alt-circle-down mr-1\"><\/i> 4108 downloads \n                    <i class=\"ml-3 far fa-clock mr-1\"><\/i> November 19, 2023\n                <\/span>\n            <\/h3>\n            Normative specification of the trade business area of FIX Latest.\n...<\/br>\n        <\/div>\n        <div class=\"ml-3\" align=\"right\">\n            <a class='wpdm-download-link download-on-click btn btn-primary btn-lg'  rel='nofollow' href='#' data-downloadurl=\"https:\/\/www.fixtrading.org\/packages\/fix-latest-specification-trade\/?wpdmdl=55603&refresh=69ceb84d49ea91775155277\">Download<\/a>\n        <\/div>\n    <\/div>\n\n<\/div><\/div><\/div>            <div style='clear:both'><\/div><div class='text-center'><ul class='pagination wpdm-pagination pagination-centered text-center'><\/ul><\/div><div style='clear:both'><\/div>        <\/div>\n\n        <div style='clear:both'><\/div>\n    <\/div>\n<\/div>\n<h3>Code Lists<\/h3>\n<p>FIX supports external code lists for certain fields. Code lists are maintained outside of the FIX Specification review process to support faster extensibility. A complete list can be found <a href=\"https:\/\/www.fixtrading.org\/standards\/codelists\/\">here<\/a>.<\/p>\n<h3>User Defined Fields<\/h3>\n<p>The table on <a href=\"https:\/\/www.fixtrading.org\/standards\/user-defined-fields\">this<\/a> page summarizes currently used custom fields.\u00a0 At this time, the available tag numbers in the user defined range of 5000 to 9999 have all been allocated.<\/p>\n<h3>FIXatdl<\/h3>\n<p>FIX Algorithmic Trading Definition Language (FIXatdl) is an XML based standard to specify the user interface components for algorithmic trading. Please see the <a href=\"https:\/\/www.fixtrading.org\/standards\/fixatdl-online\/\" target=\"_blank\" rel=\"noopener noreferrer\">online specification<\/a> or the <a href=\"https:\/\/www.fixtrading.org\/standards\/fixatdl\/\" target=\"_blank\" rel=\"noopener noreferrer\">download page<\/a> for details.<\/p>\n<h3>FIX MMT<\/h3>\n<p>FIX Market Model Typology (MMT) initiative is a collaborative effort established by a broad range of industry participants (trading\/reporting venues, data vendors and buy\/sell side participants). The initiative is committed to achieving a practical and common solution for standards on post-trade data across all asset classes subject to MiFID II.\u00a0 Please look <a href=\"https:\/\/www.fixtrading.org\/mmt\/\">here<\/a> for details.<\/p>\n<h3>Supported Legacy Versions<\/h3>\n<p>In addition to the current version (called <a href=\"https:\/\/www.fixtrading.org\/online-specification\/\">FIX Latest<\/a>), FIX supports two legacy versions <a href=\"https:\/\/www.fixtrading.org\/standards\/fix-4-2\/\">FIX 4.2<\/a>\u00a0and <a href=\"https:\/\/www.fixtrading.org\/standards\/fix-4-4\/\">FIX 4.4<\/a> of the application messages that serve as the basis for standardization and automation of the electronic trading industry.<\/p>\n<h3>Unsupported Legacy Versions<\/h3>\n<p>The FIX Community discontinued support for earlier versions of FIX.\u00a0 The specifications are archived on the <a href=\"https:\/\/www.fixtrading.org\/standards\/unsupported\/\">website<\/a> and continue to be accessible.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":15861,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/www.fixtrading.org\/wp-json\/wp\/v2\/pages\/55535"}],"collection":[{"href":"https:\/\/www.fixtrading.org\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.fixtrading.org\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.fixtrading.org\/wp-json\/wp\/v2\/users\/15861"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fixtrading.org\/wp-json\/wp\/v2\/comments?post=55535"}],"version-history":[{"count":85,"href":"https:\/\/www.fixtrading.org\/wp-json\/wp\/v2\/pages\/55535\/revisions"}],"predecessor-version":[{"id":113290,"href":"https:\/\/www.fixtrading.org\/wp-json\/wp\/v2\/pages\/55535\/revisions\/113290"}],"wp:attachment":[{"href":"https:\/\/www.fixtrading.org\/wp-json\/wp\/v2\/media?parent=55535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}