Page History: MarketData Snapshot
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Page Revision: 2012/10/12 17:38
Describing MarketsThe T4 FIX API support streaming of market data with the Market Data Snapshot message.
The Market Data Snapshot messages are used as the response to a Market Data Request message. It can be used to transmit a list of quotes, a list of trades, index values, opening, closing, settlement, high, low, the trade volume or open interest for a security, or any combination of these. Market Data Snapshot messages sent as the result of a Market Data Request message will specify the appropriate MDReqID. Unsolicited Market Data messages can also be sent.
Market Data messages can take two forms. The first Market Data message format used for a Snapshot, or a Snapshot + Updates where MDUpdateType = Full Refresh (0) is as follows:
For Market Data Requests where a Bid or Offer is added, changed, or deleted, every update to a Market Data Entry results in a new Market Data message that contains the entirety of the data requested for that instrument, not just the changed Market Data Entry. In other words, both sides of the market, or just one side in the case of a request of only bids or offers, for the depth requested, must be sent in one FIX Market Data message.
Message Dictionary| Tag | Field Name | Req'd | Comments |
|---|
| 262 | MDReqID | N | Conditionally required if this message is in response to a Market Data Request. |
| 55|| Symbol | N | Security Symbol. T4 Contract ID. |
| 48 | SecurityID | N | Security Identifier. T4 Market ID. |
| 27 | SecurityExchange | N | Exchange. T4 Exchange ID. |
| 387 | TotalVolumeTraded | N | Total quantatity of volume traded across all levels. |
| 269 | MDEntryType | Y | Entry Type. Must be the first field in this repeating group. This is a list of interested Market Data Entries. The permissible values can be: |
| | Start Repeating Group | |
| 268 | NoMDEntries | Y | Number of entries following. |
| 269 | MDEntryType | Y | Type for Market data entry. Must be the first field in this repeating group. |
| 270 | MDEntryPx | N | Conditionally required if MDEntryType is not Imbalance(A) ), Trade Volume (B), or Open Interest(C) |
| 271 | MDEntrySize | N | Conditionally required if MDEntryType = Bid(0), Offer(1), Trade(2) ), Trade Volume (B), or Open Interest(C) |
| 1023 | MDEntryLevel | N | Book level this entry pertains to |
| | End Repeating Group | |
| | Standard Trailer | Y |
Sample Message
Market Data Snapshot of Market with a 1 book level (Top of Book)
<< 10/11/2012 2:58:04 PM [fixmarketdatasnapshot] 34=11479|49=T4|56=T4Example|50=T4FIX|52=20121011-19:58:03.971|55=ZT|48=CME_20121200_ZTZ2|207=CME_F|387=4785|268=5|269=0|270=110.203125|271=224|1023=1|269=1|270=110.21875|271=326|1023=1|269=2|270=110.1875|271=1|1023=1|269=3|270=110.21875|271=3|1023=1|269=4|270=110.2109375|271=1|
[FIXMARKETDATASNAPSHOT]
[MsgSeqNum] 34 = 11479
[SenderCompID] 49 = T4
[TargetCompID] 56 = T4Example
[SenderSubID] 50 = T4FIX
[SendingTime] 52 = 20121011-19:58:03.971
[Symbol] 55 = ZT
[SecurityID] 48 = CME_20121200_ZTZ2
[SecurityExchange] 207 = CME_F
[TotalVolumeTraded] 387 = 4785
[NoMDEntries] 268 = 5
[MDEntryType] 269 = 0 (BID)
[MDEntryPx] 270 = 110.203125
[MDEntrySize] 271 = 224
[MDPriceLevel] 1023 = 1
[MDEntryType] 269 = 1 (OFFER)
[MDEntryPx] 270 = 110.21875
[MDEntrySize] 271 = 326
[MDPriceLevel] 1023 = 1
[MDEntryType] 269 = 2 (IMPLIED_BID)
[MDEntryPx] 270 = 110.1875
[MDEntrySize] 271 = 1
[MDPriceLevel] 1023 = 1
[MDEntryType] 269 = 3 (IMPLIED_OFFER)
[MDEntryPx] 270 = 110.21875
[MDEntrySize] 271 = 3
[MDPriceLevel] 1023 = 1
[MDEntryType] 269 = 4 (TRADE)
[MDEntryPx] 270 = 110.2109375
[MDEntrySize] 271 = 1
Market Data Snapshot for non-book entries
<< 10/11/2012 2:58:04 PM [fixmarketdatasnapshot] 34=11480|49=test|56=T4Test|50=T4FIX|52=20121011-19:58:04.002|55=ZT|48=CME_20121200_ZTZ2|207=CME_F|268=22|269=6|270=110.21875|269=7|270=110.21875|269=7|270=110|269=B|270=0|271=4785|1023=0|269=B|270=110|271=260|1023=1|269=B|270=110.0078125|271=10|1023=2|269=B|270=110.0234375|271=10|1023=3|269=B|270=110.0390625|271=80|1023=4|269=B|270=110.0546875|271=10|1023=5|269=B|270=110.0703125|271=10|1023=6|269=B|270=110.0859375|271=10|1023=7|269=B|270=110.1015625|271=10|1023=8|269=B|270=110.1171875|271=10|1023=9|269=B|270=110.1328125|271=25|1023=10|269=B|270=110.1484375|271=20|1023=11|269=B|270=110.15625|271=50|1023=12|269=B|270=110.1640625|271=35|1023=13|269=B|270=110.1796875|271=25|1023=14|269=B|270=110.1953125|271=156|1023=15|269=B|270=110.203125|271=21|1023=16|269=B|270=110.2109375|271=4012|1023=17|269=B|270=110.21875|271=31|1023=18|
[FIXMARKETDATASNAPSHOT]
[MsgSeqNum] 34 = 11480
[SenderCompID] 49 = test
[TargetCompID] 56 = T4Test
[SenderSubID] 50 = T4FIX
[SendingTime] 52 = 20121011-19:58:04.002
[Symbol] 55 = ZT
[SecurityID] 48 = CME_20121200_ZTZ2
[SecurityExchange] 207 = CME_F
[NoMDEntries] 268 = 22
[MDEntryType] 269 = 6 (SETTLEMENT_PRICE)
[MDEntryPx] 270 = 110.21875
[MDEntryType] 269 = 7 (TRADING_SESSION_HIGH_PRICE)
[MDEntryPx] 270 = 110.21875
[MDEntryType] 269 = 7 (TRADING_SESSION_HIGH_PRICE)
[MDEntryPx] 270 = 110
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 0
[MDEntrySize] 271 = 4785
[MDPriceLevel] 1023 = 0
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110
[MDEntrySize] 271 = 260
[MDPriceLevel] 1023 = 1
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.0078125
[MDEntrySize] 271 = 10
[MDPriceLevel] 1023 = 2
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.0234375
[MDEntrySize] 271 = 10
[MDPriceLevel] 1023 = 3
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.0390625
[MDEntrySize] 271 = 80
[MDPriceLevel] 1023 = 4
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.0546875
[MDEntrySize] 271 = 10
[MDPriceLevel] 1023 = 5
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.0703125
[MDEntrySize] 271 = 10
[MDPriceLevel] 1023 = 6
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.0859375
[MDEntrySize] 271 = 10
[MDPriceLevel] 1023 = 7
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.1015625
[MDEntrySize] 271 = 10
[MDPriceLevel] 1023 = 8
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.1171875
[MDEntrySize] 271 = 10
[MDPriceLevel] 1023 = 9
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.1328125
[MDEntrySize] 271 = 25
[MDPriceLevel] 1023 = 10
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.1484375
[MDEntrySize] 271 = 20
[MDPriceLevel] 1023 = 11
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.15625
[MDEntrySize] 271 = 50
[MDPriceLevel] 1023 = 12
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.1640625
[MDEntrySize] 271 = 35
[MDPriceLevel] 1023 = 13
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.1796875
[MDEntrySize] 271 = 25
[MDPriceLevel] 1023 = 14
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.1953125
[MDEntrySize] 271 = 156
[MDPriceLevel] 1023 = 15
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.203125
[MDEntrySize] 271 = 21
[MDPriceLevel] 1023 = 16
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.2109375
[MDEntrySize] 271 = 4012
[MDPriceLevel] 1023 = 17
[MDEntryType] 269 = B (TRADE_VOLUME)
[MDEntryPx] 270 = 110.21875
[MDEntrySize] 271 = 31
[MDPriceLevel] 1023 = 18
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