The Don’t Know Trade (DK) message notifies a trading partner that an electronically received execution has been rejected.
Added 
									    FIX.4.0
Expand Components | Collapse Components
| Field or Component | Field Name | Req'd | Comments | Depr. | 
|---|
![]()  | Component | StandardHeader | ![]()  | 
          MsgType = Q  | 
![]()  | 37 | OrderID | ![]()  | 
          Broker Order ID as identified on problem execution  | |
![]()  | 17 | ExecID | ![]()  | 
          Execution ID of problem execution  | |
![]()  | 127 | DKReason | ![]()  | ||
![]()  | 55 | Symbol | ![]()  | ||
![]()  | 65 | SymbolSfx | |||
![]()  | 48 | SecurityID | |||
![]()  | 22 | IDSource | |||
![]()  | 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 | |||
![]()  | 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 | |||
![]()  | 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.  | ||
![]()  | 54 | Side | ![]()  | ||
![]()  | 38 | OrderQty | 
          Either CashOrderQty or OrderQty is required.  | ||
![]()  | 152 | CashOrderQty | 
          Either CashOrderQty or OrderQty is required. Specifies the approximate "monetary quantity" for the order. Broker is responsible for converting and calculating OrderQty in shares for subsequent messages.  | ||
![]()  | 32 | LastShares | 
          Required if specified on the ExecutionRpt  | ||
![]()  | 31 | LastPx | 
          Required if specified on the ExecutionRpt  | ||
![]()  | 58 | Text | |||
![]()  | 354 | EncodedTextLen | 
          Must be set if EncodedText field is specified and must immediately precede it.  | ||
![]()  | 355 | EncodedText | 
          Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field.  | 
![]()  | Component | StandardTrailer | ![]()  | 
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