Some systems allow the transmission of real-time quote, order, trade and/or other price information on a subscription basis.
Added 
									    FIX.4.2
Expand Components | Collapse Components
| Field or Component | Field Name | Req'd | Comments | Depr. | 
|---|
![]()  | Component | StandardHeader | ![]()  | 
          MsgType = V  | 
![]()  | 262 | MDReqID | ![]()  | 
          Must be unique, or the ID of previous Market Data Request to disable if SubscriptionRequestType = Disable previous Snapshot + Updates Request (2).  | |
![]()  | 263 | SubscriptionRequestType | ![]()  | 
          SubcriptionRequestType indicates to the other party what type of response is expected. A snapshot request only asks for current information. A subscribe request asks for updates as the status changes. Unsubscribe will cancel any future update messages from the counter party.  | |
![]()  | 264 | MarketDepth | ![]()  | ||
![]()  | 265 | MDUpdateType | 
          Required if SubscriptionRequestType = Snapshot + Updates (1).  | ||
![]()  | 266 | AggregatedBook | 
![]()  | Repeating Group 267 | NoMDEntryTypes | ![]()  | 
          Number of MDEntryType fields requested.  | 
![]()  | 269 | MDEntryType | ![]()  | 
          Must be the first field in this repeating group. This is a list of all the types of Market Data Entries that the firm requesting the Market Data is interested in receiving.  | 
| end Repeating Group | 
![]()  | Repeating Group 146 | NoRelatedSym | ![]()  | 
          Number of symbols requested.  | 
![]()  | 55 | Symbol | ![]()  | 
          Must be the first field in the repeating group.  | |
![]()  | 65 | SymbolSfx | 
          Can be repeated multiple times if message is related to multiple symbols.  | ||
![]()  | 48 | SecurityID | 
          Can be repeated multiple times if message is related to multiple symbols.  | ||
![]()  | 22 | IDSource | 
          Can be repeated multiple times if message is related to multiple symbols.  | ||
![]()  | 167 | SecurityType | 
          Must be specified if a Future or Option. If a Future:Symbol, SecurityType, and MaturityMonthYear are required. If an Option:Symbol, SecurityType, MaturityMonthYear, PutOrCall, and StrikePrice are required.  | ||
![]()  | 200 | MaturityMonthYear | 
          Specifiesthe month and year of maturity. Required if MaturityDay is specified.  | ||
![]()  | 205 | MaturityDay | 
          Can be used in conjunction with MaturityMonthYear to specify a particular maturity date.  | ||
![]()  | 201 | PutOrCall | 
          For Options.  | ||
![]()  | 202 | StrikePrice | 
          For Options.  | ||
![]()  | 206 | OptAttribute | 
          For Options.  | ||
![]()  | 231 | ContractMultiplier | 
          For Fixed Income, Convertible Bonds, Derivatives, etc. Note: If used, quantities should be expressed in the "nominal" (e.g. contracts vs. shares) amount.  | ||
![]()  | 223 | CouponRate | 
          For Fixed Income.  | ||
![]()  | 207 | SecurityExchange | 
          Can be used to identify the security.  | ||
![]()  | 106 | Issuer | 
          Can be repeated multiple times if message is related to multiple symbols.  | ||
![]()  | 348 | EncodedIssuerLen | 
          Must be set if EncodedIssuer field is specified and must immediately precede it.  | ||
![]()  | 349 | EncodedIssuer | 
          Encoded (non-ASCII characters) representation of the Issuer field in the encoded format specified via the MessageEncoding field.  | ||
![]()  | 107 | SecurityDesc | 
          Can be repeated multiple times if message is related to multiple symbols.  | ||
![]()  | 350 | EncodedSecurityDescLen | 
          Must be set if EncodedSecurityDesc field is specified and must immediately precede it.  | ||
![]()  | 351 | EncodedSecurityDesc | 
          Encoded (non-ASCII characters) representation of the SecurityDesc field in the encoded format specified via the MessageEncoding field.  | ||
![]()  | 336 | TradingSessionID | 
| end Repeating Group | 
![]()  | Component | StandardTrailer | ![]()  | 
  |