Market Data Request <V>

Tag#	Field Name	Required	Comments
Standard Header		Yes	MsgType <35> =V
262	MDReqID	Yes	Unique identifier for Market Data request
263	SubscriptionRequestType	Yes	Indicates to the other party what type of response is expected Valid values: ▪ 1 – Snapshot + Updates (Subscribe) ▪ 2- Disable previous Snapshot + Update Request (Unsubscribe)
264	MarketDepth	Yes	Depth of market for Book Snapshot Valid values: ▪ 0 – full market depth (Up to 50 layers only)
265	MDUpdateType	No*	Specifies the type of Market Data update Valid values: ▪ 0 = Full Refresh ▪ 1 = Incremental Refresh Required when SubscriptionRequestType 263=1 (Snapshot + Updates)
267	NoMDEntryTypes	Yes	Number of MDEntryType <269> fields requested
269	MDEntryType	Yes	Entries that the client requesting is interested in receiving. There can be multiple fields Valid Values: ▪ 0 = Bid ▪ 1 = Offer ▪ 2 = Trade ▪ 4 = Opening Price ▪ 5 = Closing Price ▪ 7 = Trading Session High Price (24 hours) ▪ 8 = Trading Session Low Price (24 hours) ▪ B = Trade Volume (24 hours)
146	NoRelatedSym	Yes	Number of symbols (instruments) requested
55	Symbol	Yes	Currency-pair. e.g. BTC-USDC, ETH-BTC, ETH-USDC
Standard trailer		Yes

RAW
       8=FIX.4.4|9=124|35=V|49=JOSEPH|56=MarketDataGateway|34=4|52=20240218-16:11:50|262=1981400121|263=1|264=0|265=0|267=1|269=0|146=1|55=BTC-USD|10=139        |

HEADER
       8                 BeginString: FIX 4.4
       9                  BodyLength: 124
      35                     MsgType: V (MarketDataIncrementalRefresh)
      49                SenderCompID: JOSEPH
      56                TargetCompID: MarketDataGateway
      34                   MsgSeqNum: 4
      52                 SendingTime: 20240218-16:11:50

BODY
     262                     MDReqID: 1981400121
     263     SubscriptionRequestType: 1 
     264                 MarketDepth: 0
     265                MDUpdateType: 0
     267                 NoMDEntries: 1
     269                 MDEntryType: 0 (Bid)
     146                NoRelatedSym: 1
      55                      Symbol: BTC-USD

TRAILER
      10                    CheckSum: 139