{"id":7122,"date":"2025-08-28T22:36:07","date_gmt":"2025-08-29T03:36:07","guid":{"rendered":"https:\/\/librarytestdev.wpenginepowered.com\/?post_type=doc&#038;p=7122"},"modified":"2025-12-12T20:31:54","modified_gmt":"2025-12-13T02:31:54","slug":"market-data-incremental-refresh-x","status":"publish","type":"doc","link":"https:\/\/library-staging.tradingtechnologies.com\/tt-fix\/tt-fix-gateway\/price-gateway-messages\/market-data-incremental-refresh-x\/","title":{"rendered":"Market Data Incremental Refresh (X)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading MapTitle\" id=\"MarketDataIncrementalRefresh-X\">\n    Market Data Incremental Refresh (X) Message\n  <\/h2>\n\n\n\n<div>\n    <h3 class=\"LabelHead\">Purpose<\/h3>\n    <p>Used to send updated market data for an instrument<\/p>\n  <\/div>\n\n\n\n<div>\n    <h3 class=\"LabelHead\">Message Direction<\/h3>\n    <p>From a third-party FIX acceptor to the TT FIX Price Gateway<\/p>\n  <\/div>\n\n\n\n<div class=\"fix-tag-table-wrapper wp-block-twentytwentyfive-child-tt-fix-tag-table\" data-components-start-expanded=\"false\">\n    \n        <div class=\"block-controls\">\n\n        <div class=\"row\">    \n            \n                            <!-- Descriptions Toggle -->\n                <div class=\"description-toggle col\">\n                    <label>\n                        <input type=\"checkbox\" id=\"toggle-descriptions\" checked>\n                        Show Comments\n                    <\/label>\n                <\/div>\n                    <\/div>\n\n                    <div class=\"tag-jump-directory\">\n                <a href=\"#tag-8\">8<\/a><a href=\"#tag-9\">9<\/a><a href=\"#tag-10\">10<\/a><a href=\"#tag-34\">34<\/a><a href=\"#tag-35\">35<\/a><a href=\"#tag-43\">43<\/a><a href=\"#tag-48\">48<\/a><a href=\"#tag-49\">49<\/a><a href=\"#tag-52\">52<\/a><a href=\"#tag-55\">55<\/a><a href=\"#tag-56\">56<\/a><a href=\"#tag-97\">97<\/a><a href=\"#tag-122\">122<\/a><a href=\"#tag-262\">262<\/a><a href=\"#tag-268\">268<\/a><a href=\"#tag-269\">269<\/a><a href=\"#tag-270\">270<\/a><a href=\"#tag-271\">271<\/a><a href=\"#tag-279\">279<\/a><a href=\"#tag-346\">346<\/a><a href=\"#tag-387\">387<\/a>            <\/div>\n            <\/div>\n    \n    <figure class=\"wp-block-table\">\n        <div class=\"table-responsive\"><table class=\"fix-tag-table table\">\n                            <caption>\n                    MarketDataIncrementalRefresh                                    <\/caption>\n                        <thead>\n                <tr>\n                    <th class=\"col-tag\">Tag<\/th><th class=\"col-name\">Name<\/th><th class=\"col-dataType\">Type<\/th><th class=\"col-required\">Required<\/th><th class=\"col-definition\">Comments<\/th>                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr class=\"component-header \" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"base\"><td colspan=\"3\" class=\"col-name\"><span class=\"component-title\" data-bs-toggle=\"collapse\" data-bs-target=\"#fix-grp-header-6bc3da47-7d2c-4378-a95b-0429eb55bbb4\" aria-expanded=\"false\" aria-controls=\"fix-grp-header-6bc3da47-7d2c-4378-a95b-0429eb55bbb4\">Header <span class=\"group-label\"><\/span><\/span><\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>For additional information about this component group, consult the <a href=\"\/tt-fix\/general\/Structure_Header.html\">documentation<\/a>.<\/p>\n<div class=\"comment-separator\"><\/div><p>35=X (MsgType)<\/p>\n<\/td><\/tr><tr id=\"fix-grp-header-6bc3da47-7d2c-4378-a95b-0429eb55bbb4\" class=\"collapse component-body-row\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"base\"><td colspan=\"5\" class=\"col-nested-table\"><table class=\"nested-table table\"><tbody><tr id=\"tag-8\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"header\"><td class=\"col-tag\">8<\/td><td class=\"col-name\">BeginString<\/td><td class=\"col-dataType\">STRING<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>FIX protocol version<\/p>\n<p>The tag indicates the beginning of a new message.<\/p>\n<p>This tag must be the first tag in the message.<\/p>\n<div class=\"comment-separator\"><\/div><p class=\"p\">You must set the value to <strong>FIX.4.2<\/strong> or <strong>FIX.4.4<\/strong>.<\/p>\n<\/td><\/tr><tr id=\"tag-9\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"header\"><td class=\"col-tag\">9<\/td><td class=\"col-name\">BodyLength<\/td><td class=\"col-dataType\">INT<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>Message length (in characters)<\/p>\n<p class=\"p\">\n          The value represents number of characters in the message following<br \/>\n          this tag up to, and including, the delimiter immediately preceding Tag<br \/>\n          10 (CheckSum). This tag must be the second field in a message.\n        <\/p>\n<\/td><\/tr><tr id=\"tag-35\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"header\"><td class=\"col-tag\">35<\/td><td class=\"col-name\">MsgType<\/td><td class=\"col-dataType\">STRING<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>Type of message contained in the message body<\/p>\n<p>This tag must appear third in the list of header tags.<\/p>\n<div class=\"enumerations-list\"><strong>Possible values:<\/strong><ul><li><strong>0<\/strong>: Heartbeat<\/li><li><strong>1<\/strong>: Test Request<\/li><li><strong>2<\/strong>: Resend Request<\/li><li><strong>3<\/strong>: Reject<\/li><li><strong>4<\/strong>: Sequence Reset<\/li><li><strong>5<\/strong>: Logout<\/li><li><strong>8<\/strong>: Execution Report<\/li><li><strong>9<\/strong>: Order Cancel Reject<\/li><li><strong>A<\/strong>: Logon<\/li><li><strong>B<\/strong>: News<\/li><li><strong>c<\/strong>: Security Definition Request<\/li><li><strong>D<\/strong>: Order Single<\/li><li><strong>d<\/strong>: Security Definition<\/li><li><strong>e<\/strong>: Security Status Request<\/li><li><strong>f<\/strong>: Security Status<\/li><li><strong>F<\/strong>: Order Cancel Request<\/li><li><strong>G<\/strong>: Order Cancel Replace Request<\/li><li><strong>H<\/strong>: Order Status Request<\/li><li><strong>Q<\/strong>: Don&#8217;t Know Trade (Inbound Drop Copy only)<\/li><li><strong>R<\/strong>: Quote Request<\/li><li><strong>V<\/strong>: Market Data Request<\/li><li><strong>W<\/strong>: Market Data Snapshot Full Refresh<\/li><li><strong>X<\/strong>: Market Data Incremental Refresh<\/li><li><strong>Y<\/strong>: Market Data Request Reject<\/li><li><strong>AD<\/strong>: Trade Capture Report Request<\/li><li><strong>AE<\/strong>: Trade Capture Report<\/li><li><strong>AQ<\/strong>: Trade Capture Report Request Ack<\/li><\/ul><\/div><\/td><\/tr><tr id=\"tag-49\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"header\"><td class=\"col-tag\">49<\/td><td class=\"col-name\">SenderCompID<\/td><td class=\"col-dataType\">STRING<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p class=\"p\">Assigned value used to identify the counterparty<\/p>\n<\/td><\/tr><tr id=\"tag-56\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"header\"><td class=\"col-tag\">56<\/td><td class=\"col-name\">TargetCompID<\/td><td class=\"col-dataType\">STRING<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p class=\"p\">Assigned value used to identify TT<\/p>\n<\/td><\/tr><tr id=\"tag-34\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"header\"><td class=\"col-tag\">34<\/td><td class=\"col-name\">MsgSeqNum<\/td><td class=\"col-dataType\">SEQNUM<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p class=\"p\">Message sequence number<\/p>\n<\/td><\/tr><tr id=\"tag-43\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"header\"><td class=\"col-tag\">43<\/td><td class=\"col-name\">PossDupFlag<\/td><td class=\"col-dataType\">BOOLEAN<\/td><td class=\"col-required\"><span class=\"req-tag conditional\" data-bs-toggle=\"tooltip\" title=\"Conditional\" style=\"cursor: help;\">C<\/span><div class=\"condition-description\"><p>Must be sent when a third-party FIX acceptor resends messages<\/p>\n<\/div><\/td><td class=\"col-definition\"><p>Whether the sequence number for this message is already used<\/p>\n<div class=\"enumerations-list\"><strong>Possible values:<\/strong><ul><li><strong>N<\/strong>: NO: Original transmission<\/li><li><strong>Y<\/strong>: YES: Possible duplicate<\/li><\/ul><\/div><\/td><\/tr><tr id=\"tag-97\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"header\"><td class=\"col-tag\">97<\/td><td class=\"col-name\">PossResend<\/td><td class=\"col-dataType\">BOOLEAN<\/td><td class=\"col-required\"><span class=\"req-tag conditional\" data-bs-toggle=\"tooltip\" title=\"Conditional\" style=\"cursor: help;\">C<\/span><div class=\"condition-description\"><p>Must be sent if the message may contain information that has been sent under another sequence number.<\/p>\n<\/div><\/td><td class=\"col-definition\"><p>Whether the message might contain information that has been sent under another sequence number<\/p>\n<div class=\"enumerations-list\"><strong>Possible values:<\/strong><ul><li><strong>N<\/strong>: NO: Original transmission<\/li><li><strong>Y<\/strong>: YES: Possible resend<\/li><\/ul><\/div><\/td><\/tr><tr id=\"tag-122\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"header\"><td class=\"col-tag\">122<\/td><td class=\"col-name\">OrigSendingTime<\/td><td class=\"col-dataType\">UTCTIMESTAMP<\/td><td class=\"col-required\"><span class=\"req-tag conditional\" data-bs-toggle=\"tooltip\" title=\"Conditional\" style=\"cursor: help;\">C<\/span><div class=\"condition-description\"><p>Sent when a third-party FIX acceptor resends a message<\/p>\n<\/div><\/td><td class=\"col-definition\"><p>Original time of message transmission, when transmitting orders as the result of a resend request<\/p>\n<p class=\"p\">Always expressed in UTC. <\/p>\n<\/td><\/tr><tr id=\"tag-52\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"header\"><td class=\"col-tag\">52<\/td><td class=\"col-name\">SendingTime<\/td><td class=\"col-dataType\">UTCTIMESTAMP<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p class=\"p\">Time, in UTC, the message was sent.<\/p>\n<\/td><\/tr><\/tbody><\/table><\/td><\/tr><tr id=\"tag-262\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"base\"><td class=\"col-tag\">262<\/td><td class=\"col-name\">MDReqID<\/td><td class=\"col-dataType\">STRING<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>Unique ID sent in the Market Data Request (V) message<\/p>\n<p>The third party FIX acceptor must return this value in all responses associated with the initial request.<\/p>\n<\/td><\/tr><tr class=\"component-header \" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"base\"><td colspan=\"3\" class=\"col-name\"><span class=\"component-title\" data-bs-toggle=\"collapse\" data-bs-target=\"#fix-grp-nomdentriesincrementalgroup-1b20794b-8fa0-44ea-86f9-3c1272c78581\" aria-expanded=\"false\" aria-controls=\"fix-grp-nomdentriesincrementalgroup-1b20794b-8fa0-44ea-86f9-3c1272c78581\">NoMDEntriesIncrementalGroup <span class=\"group-label\"><\/span><\/span><\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>Market data entries returned<\/p>\n<\/td><\/tr><tr id=\"fix-grp-nomdentriesincrementalgroup-1b20794b-8fa0-44ea-86f9-3c1272c78581\" class=\"collapse component-body-row\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"base\"><td colspan=\"5\" class=\"col-nested-table\"><table class=\"nested-table table\"><tbody><tr id=\"tag-387\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"nomdentriesincrementalgroup\"><td class=\"col-tag\">387<\/td><td class=\"col-name\">TotalVolumeTraded<\/td><td class=\"col-dataType\">QTY<\/td><td class=\"col-required\"><span class=\"req-tag conditional\" data-bs-toggle=\"tooltip\" title=\"Conditional\" style=\"cursor: help;\">C<\/span><\/td><td class=\"col-definition\"><p>  Total volume traded during the current trading session for this  instrument.   <\/p>\n<p>  <b>Note<\/b>: Include only in the first item in the repeating   group.  <\/p>\n<\/td><\/tr><tr id=\"tag-268\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"nomdentriesincrementalgroup\"><td class=\"col-tag\">268<\/td><td class=\"col-name\">NoMDEntries<\/td><td class=\"col-dataType\">NUMINGROUP<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>Number of market data entries in the message. Starts the repeating group.<\/p>\n<\/td><\/tr><tr id=\"tag-279\" class=\"is-repeating-group-part\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"nomdentriesincrementalgroup\"><td class=\"col-tag\">279<\/td><td class=\"col-name\">MDUpdateAction<\/td><td class=\"col-dataType\">CHAR<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>Specifies the type of market data update.<\/p>\n<p><strong>Note<\/strong>: When Tag 35 (MsgType) = X, (i.e., Market  Data Incremental Refresh message), Tag 279   <strong>must<\/strong> be the first tag in each MDEntry repeating group. <\/p>\n<div class=\"enumerations-list\"><strong>Possible values:<\/strong><ul><li><strong>0<\/strong>: New<\/li><li><strong>1<\/strong>: Change<\/li><li><strong>2<\/strong>: Delete<\/li><\/ul><\/div><\/td><\/tr><tr class=\"component-header is-repeating-group-part\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"nomdentriesincrementalgroup\"><td colspan=\"3\" class=\"col-name\"><span class=\"component-title\" data-bs-toggle=\"collapse\" data-bs-target=\"#fix-grp-instrument-e32a84ca-f068-48b0-9a3f-7e71f187aa21\" aria-expanded=\"false\" aria-controls=\"fix-grp-instrument-e32a84ca-f068-48b0-9a3f-7e71f187aa21\">Instrument <span class=\"group-label\"><\/span><\/span><\/td><td class=\"col-required\"><span class=\"req-tag conditional\" data-bs-toggle=\"tooltip\" title=\"Conditional\" style=\"cursor: help;\">C<\/span><div class=\"condition-description\"><p>Only required on the first entry in the group as long as following updates are for the same instrument.<\/p>\n<\/div><\/td><td class=\"col-definition\"><p>Instrument associated with this message. For additional information about this component group, consult the full <a href=\"\/tt-fix\/market-data\/InstrumentBlock_Response.html\">documentation<\/a>.<\/p>\n<\/td><\/tr><tr id=\"fix-grp-instrument-e32a84ca-f068-48b0-9a3f-7e71f187aa21\" class=\"collapse component-body-row\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"nomdentriesincrementalgroup\"><td colspan=\"5\" class=\"col-nested-table\"><table class=\"nested-table table\"><tbody><tr id=\"tag-48\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"instrument\"><td class=\"col-tag\">48<\/td><td class=\"col-name\">SecurityID<\/td><td class=\"col-dataType\">STRING<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><\/td><\/tr><tr id=\"tag-55\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"instrument\"><td class=\"col-tag\">55<\/td><td class=\"col-name\">Symbol<\/td><td class=\"col-dataType\">STRING<\/td><td class=\"col-required\"><span class=\"req-tag conditional\" data-bs-toggle=\"tooltip\" title=\"Conditional\" style=\"cursor: help;\">C<\/span><div class=\"condition-description\"><p>Not used when Tag 167 (SecurityType)=MLEG.<\/p>\n<\/div><\/td><td class=\"col-definition\"><p>Exchange-provided product symbol for the tradable product.<\/p>\n<\/td><\/tr><\/tbody><\/table><\/td><\/tr><tr id=\"tag-269\" class=\"is-repeating-group-part\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"nomdentriesincrementalgroup\"><td class=\"col-tag\">269<\/td><td class=\"col-name\">MDEntryType<\/td><td class=\"col-dataType\">CHAR<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>Type of market data to request.<\/p>\n<div class=\"comment-separator\"><\/div><p><strong>Note<\/strong>: When Tag 35 (MsgType) = V, (i.e., Market Data Request) or Tag 35 (MsgType) = X, (i.e., Market Data Snapshot), Tag 269 <strong>must<\/strong> be the first tag in each MDEntry repeating group.<\/p>\n<div class=\"enumerations-list\"><strong>Possible values:<\/strong><ul><li><strong>0<\/strong>: Bid<\/li><li><strong>1<\/strong>: Ask<\/li><li><strong>2<\/strong>: Trade<\/li><li><strong>4<\/strong>: Opening price<\/li><li><strong>5<\/strong>: Closing price<\/li><li><strong>6<\/strong>: Settlement price<\/li><li><strong>7<\/strong>: Trading session high price<\/li><li><strong>8<\/strong>: Trading session Low price<\/li><li><strong>9<\/strong>: VWAP price (Spot energy products only)<\/li><li><strong>A<\/strong>: Imbalance (B3 Auction and Pre-Open market states only)<\/li><li><strong>B<\/strong>: Trade volume<\/li><li><strong>J<\/strong>: Empty book<\/li><li><strong>L<\/strong>: Leg trade<\/li><li><strong>Y<\/strong>: Implied bid<\/li><li><strong>Z<\/strong>: Implied ask<\/li><li><strong>m<\/strong>: OTC trade (New for TT FIX)<\/li><li><strong>n<\/strong>: Market bid (B3 Auction and Pre-Open market states only)<\/li><li><strong>o<\/strong>: Market ask (B3 Auction and Pre-Open market states only)<\/li><li><strong>p<\/strong>: Indicative open<\/li><li><strong>q<\/strong>: Indicative close<\/li><li><strong>r<\/strong>: Indicative bid<\/li><li><strong>s<\/strong>: Indicative ask<\/li><li><strong>t<\/strong>: Indicative settlement<\/li><li><strong>u<\/strong>: Exchange sending time<\/li><li><strong>v<\/strong>: Exchange transaction time<\/li><li><strong>w<\/strong>: Exchange sequence number (TT internal only)<\/li><li><strong>x<\/strong>: Last traded<\/li><\/ul><\/div><\/td><\/tr><tr id=\"tag-270\" class=\"is-repeating-group-part\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"nomdentriesincrementalgroup\"><td class=\"col-tag\">270<\/td><td class=\"col-name\">MDEntryPx<\/td><td class=\"col-dataType\">PRICE<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>Price of the instrument associated with this entry. Interpret the value based on the entry type.<\/p>\n<\/td><\/tr><tr id=\"tag-271\" class=\"is-repeating-group-part\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"nomdentriesincrementalgroup\"><td class=\"col-tag\">271<\/td><td class=\"col-name\">MDEntrySize<\/td><td class=\"col-dataType\">QTY<\/td><td class=\"col-required\"><span class=\"req-tag conditional\" data-bs-toggle=\"tooltip\" title=\"Conditional\" style=\"cursor: help;\">C<\/span><div class=\"condition-description\"><p>Required when Tag 269 (MDEntryType) contains:<\/p>\n<ul>\n<li><b>0<\/b>: Bid<\/li>\n<li><b>1<\/b>: Offer<\/li>\n<li><b>2<\/b>: Trade<\/li>\n<li><b>Y<\/b>: Implied bid<\/li>\n<li><b>Z<\/b>: Implied ask<\/li>\n<\/ul>\n<\/div><\/td><td class=\"col-definition\"><p>Quantity associated with the related instrument.<\/p>\n<\/td><\/tr><tr id=\"tag-346\" class=\"is-repeating-group-part\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"nomdentriesincrementalgroup\"><td class=\"col-tag\">346<\/td><td class=\"col-name\">NumberOfOrders<\/td><td class=\"col-dataType\">INT<\/td><td class=\"col-required\"><span class=\"req-tag conditional\" data-bs-toggle=\"tooltip\" title=\"Conditional\" style=\"cursor: help;\">C<\/span><div class=\"condition-description\"><p>Send when both of the following are true:<\/p>\n<ul>\n<li>Tag 269 (MDEntryType) contains: 0 (Bid), 1 (Ask), Y (Implied bid), or Z (Implied ask).<\/li>\n<li>The data is available.<\/li>\n<\/ul>\n<\/div><\/td><td class=\"col-definition\"><p>Number of orders that comprise the quantity represented in Tag 271 (MDEntrySize) of this message.<\/p>\n<\/td><\/tr><\/tbody><\/table><\/td><\/tr><tr class=\"component-header \" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"base\"><td colspan=\"3\" class=\"col-name\"><span class=\"component-title\" data-bs-toggle=\"collapse\" data-bs-target=\"#fix-grp-trailer-71c5ad06-06b6-4b39-938d-9936450552d3\" aria-expanded=\"false\" aria-controls=\"fix-grp-trailer-71c5ad06-06b6-4b39-938d-9936450552d3\">Trailer <span class=\"group-label\"><\/span><\/span><\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>For additional information about this component group, consult the full  <a href=\"\/tt-fix\/general\/Structure_Trailer.html\">documentation<\/a>.<\/p>\n<\/td><\/tr><tr id=\"fix-grp-trailer-71c5ad06-06b6-4b39-938d-9936450552d3\" class=\"collapse component-body-row\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"base\"><td colspan=\"5\" class=\"col-nested-table\"><table class=\"nested-table table\"><tbody><tr id=\"tag-10\" class=\"\" data-state=\"from-third-party-fix-acceptor-to-tt-fix-gateway\" data-component-group=\"trailer\"><td class=\"col-tag\">10<\/td><td class=\"col-name\">CheckSum<\/td><td class=\"col-dataType\">STRING<\/td><td class=\"col-required\"><span class=\"req-tag required\" data-bs-toggle=\"tooltip\" title=\"Required\" style=\"cursor: help;\">Y<\/span><\/td><td class=\"col-definition\"><p>Unencrypted three-character checksum<\/p>\n<p>This tag must always be the last field in a message (i.e. it serves, with the trailing &lt;SOH&gt;, as the end-of-message delimiter).<\/p>\n<\/td><\/tr><\/tbody><\/table><\/td><\/tr>            <\/tbody>\n        <\/table><\/div>\n    <\/figure>\n<\/div>\n\n\n<div>\n    <h3 class=\"LabelHead\">Message Notes<\/h3>\n    <p>\n      Market Data Incremental Refresh (X) messages can contain multiple New,\n      Delete and Change actions for the same contract and MDEntryType. The TT\n      FIX Price Gateway processes all actions in the order in which they exist\n      in the message. Third party FIX acceptors should ensure that they\n      logically arrange actions for processing in this manner.\n    <\/p>\n  <\/div>\n\n\n\n<div>\n    <h3>Related Information<\/h3>\n    <p>\n      <a href=\"Msg_MarketDataSnapshotFullRefresh_W.html\">Market Data Snapshot\/Full Refresh (W)<\/a>\n    <\/p>\n    <p>\n      <a href=\"\/tt-fix\/market-data\/Msg_MarketDataRequest_V.html\">Market Data Request (V)<\/a>\n    <\/p>\n    <p>\n      <a href=\"\/tt-fix\/market-data\/Msg_MarketDataRequestReject_Y.html\">Market Data Request Reject (Y)<\/a>\n    <\/p>\n    <p>\n      <a href=\"\/tt-fix\/market-data\/Msg_SecurityDefinitionRequest_c.html\">Security Definition Request (c)<\/a>\n    <\/p>\n  <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Market Data Incremental Refresh (X) Message Purpose Used to send updated market data for an instrument Message [&hellip;]<\/p>\n","protected":false},"author":2,"template":"","meta":{"_acf_changed":false,"footnotes":""},"docs-category":[467],"class_list":["post-7122","doc","type-doc","status-publish","hentry","docs-category-price-gateway-messages"],"acf":[],"_links":{"self":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/doc\/7122","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/doc"}],"about":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/types\/doc"}],"author":[{"embeddable":true,"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"version-history":[{"count":0,"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/doc\/7122\/revisions"}],"wp:attachment":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/media?parent=7122"}],"wp:term":[{"taxonomy":"docs-category","embeddable":true,"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/docs-category?post=7122"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}