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iLink 3 has the following considerations for Drop for Drop Copy Market Segment Gateway (MSGW) customers:     

  • Drop Copy supports both iLink 3 and iLink 2 source sessions
  • Drop Copy Convenience Gateway (CGW) message payload conforms to iLink 2 formats and encoding. 

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With iLink 3, the FIX type for tag 548-CrossID—String(32) in iLink 2—changes to Integer(20) in Drop Copy Market Segment (MSGW) messages payload.

TagNameCurrent FIX TypeNew FIX TypeDescription

548

CrossID

String(32)

Int(20)

Identifier for a cross order.

Additional Enumeration for Tag 59-TimeInForce

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Drop Copy Message TagiLink 3 Source Message Tag
FIX TagFIX NameBinary TagBinary NameEnumerationDescription

1

Account

1691 

1693

PartyDetailID 

PartyDetailRole=24

Binary: When PartyDetailRole = 24, this indicates that the corresponding PartyDetailID value is equivalent to Account value.

Unique account identifier.

Note: This tag value is always uppercase, regardless of the case in the inbound message tag. Client systems are not required to submit capitalized account values to CME Globex.

17ExecID1506SideTradeID
SideTradeID represents the trade number on fill messages  that contains the trade number  which is embedded in the FIX ASCII field in tag 17-ExecID
19ExecRefID 1507OrigSideTradeID
OrigSideTradeID represents the original on trade cancel/correction messages which is embedded in the FIX ASCII field in tag 19-ExecRefID

55

Symbol

1151

SecurityGroup


This tag contains the Group Code of the instrument.

59

TimeInForce

59TimeInForce

FIX:

0=Day
1=Good Till Cancel (GTC)
3=Fill and Kill
6=Good Till Date (GTD)

Binary:

0=Day
1=Good Till Cancel (GTC)
3=Fill and Kill

4=Fill and Kill
6=Good Till Date (GTD)

Specifies how long the order remains in effect.
If not present, DAY order is the default.

For GTD, ExpireDate is required.
For FAK, MinQty can also be specified.

See Order Types for Futures and Options or Order Management for more information.

Note: For spread trade Execution Reports, this tag is sent in the Execution Report – Fill Notice (35=8, 39=1 or 2) for the spread only and not the legs of the spread.

Binary: Synthetic FOK (where MinQty Tag 110 = OrderQty Tag 38) has been replaced with an actual TimeInForce designation (Tag 59 = 4)

79

AllocAccount

1691 

1693

PartyDetailID 

PartyDetailRole=1000


Binary:

When PartyDetailRole = 1000, this indicates that the corresponding PartyDetailID value is equivalent to AllocAccount value.

Returned on Execution Report if sent on inbound message.

Note: This tag value is always uppercase, regardless of the case in the inbound message tag. Client systems are not required to submit capitalized account values to CME Globex.

107

SecurityDesc

48

SecurityID


Instrument identifier.
e.g. "ESM0'

129

DeliverToSubID

1691

1693

PartyDetailID 

PartyDetailRole=118

Binary:

When PartyDetailRole = 118, this indicates that the corresponding PartyDetailID value is equivalent to operator value.

This value represents the individual or team submitting the message.

210

MaxShow

1138

DisplayQty


See Order Display Quantity in Electronic Trading Concepts.

Maximum quantity of an order to be shown in the order book at any given time.

  • The value of MaxShow must be a fixed number N between 1 and value in tag 38-OrderQty.
  • If MaxShow is reduced (due to matches) to 0, then MaxShow is reset to the lesser of N or the number in tag 38-OrderQty remaining.

1028

ManualOrderIndicator

1028

ManualOrderIndicator

FIX:

Y=manual
N=automated

Binary:

1=manual
0=automated

Value sent on inbound message from client system indicating the order as sent manually or generated by automated trading logic.

1057

AggressorIndicator

1057

AggressorIndicator

FIX:

Y=Match aggressor

N=Resting at match

Binary:

1=Match aggressor

0=Resting at match

Indicates if order was incoming or resting for the match event.
Default=not present.

Note: For spread trade Execution Reports, this tag is sent in the Execution Report - Fill Notice (35=8, 39=1 or 2) for the spread only and not the legs of the spread. 

2807

CancelText

2807

CancelText


Represents the SenderComp which initiates the cancellation of orders or quotes for the original SenderComp.

See iLink 3 Trading on Behalf of a Client for more information.

5979RequestTime7552DelayToTime
Information carried on a response to convey the time (UTC) when the request was received by the MSGW application. UTC Timestamps are sent in number of nanoseconds since Unix epoch synced to a master clock to microsecond accuracy.

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  • Information required to clear the trade 
iLink 3 source sessionDrop Copy MSGW message payload

tag 1031-CustOrdHandlIngInst

Identical to iLink 3 source session tags

tag 1731-AveragePriceGroupID 

tag 819-AveragePriceIndicator 

tag 1598-ClearingTradePrice

tag 9708-CmtaGiveUpCD 

tag 5149-Memo 

  • Information required for market regulation compliance 

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