Indexes

Message Layouts
PostTrade
Trade

Message

OrderReplaced (U)

ID11

This message acknowledges the receipt and acceptance of a valid Replace Order Message. The data fields from the Replace Order Message are echoed back in this message. Note that the accepted values may differ from the entered values for some fields. You will receive one and only one of these two for each replacement.

Like Accepted Messages, Replaced Messages use the Order State field to denote that a replace was accepted and then automatically canceled when the Order State is Order Dead (“D”). No further Executed Messages nor Canceled Messages will be received for the replaced order unless the Order State is not Order Dead.

The Shares field on the replace indicates how many shares were left exposed when the replacement completed. E.g.:

  • Enter Order Message for 500 shares
  • Accepted Message for 500 shares
  • Executed Messages for 100 shares
  • Replace Order Message for 500 shares
  • Replaced Messages with 400 shares

The 400 shares in the Replace Message indicate that 400 shares exist on the book. This same scenario could happen if the execution was in flight back to you while the Replace Order Message was traveling to NASDAQ as follows:

  • Enter Order Message for 500 shares
  • Accepted Message for 500 shares
  • Replace Order Message for 500 shares
  • Executed Messages for 100 shares on original order
  • Replaced Messages with 400 shares
Field
Name
Type
Req'd
Comments
Pedigree
51

Replaced Message Identifier.

49
Y

Expressed as nanoseconds since midnight.

35
Y

The UserRefNum of the order being replaced.

53
Y

The UserRefNum of the replacement order, as entered.

46
Y

The side indicator as entered on the original order in the chain.

40
Y

Total number of shares outstanding.

47
Y

Stock symbol as entered.

38
Y

The accepted price of the replacement. Please note that the accepted price could potentially be different than the entered price if the order was re-priced by NASDAQ on entry. The accepted price will always be better than or equal to the entered.

48
Y

The accepted Time in Force of the replacement. Please note that the accepted Time in Force may potentially be different than the entered Time in Force. The accepted Time in Force will always be equal to or shorter in scope than the entered Time in Force.

13
Y

The accepted display type for the order.

Y = visible

N = hidden

A = attributable

Z = conformant

31
Y

The day-unique Order Reference Number assigned by NASDAQ to this order.

5
Y

The capacity specified on the order.

22
Y

Y = eligible

N = not eligible

7
Y

The cross type as entered.

34
Y

L = Order Live

D = Order Dead

6
Y

Customer order identifier for replacement order.

2
Y

The length of the remaining Optional Appendage field.

29
Y

The available options supported on this message are:

Firm

MinQty

MaxFloor

PriceType

PostOnly

ExpireTime

TradeNow

HandleInst

BBOWeightIndicator

UserRefIdx

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