| Tag | Field Name | Req'd | Comments | 
                           
                              | Component Block - <StandardHeader> | Y | MsgType = AW | 
                           
                              | 833 | AsgnRptID | Y | Unique identifier for the Assignment report | 
                           
                              | 832 | TotNumAssignmentReports | N | Total Number of Assignment Reports being returned to a firm | 
                           
                              | 912 | LastRptRequested | N |  | 
                           
                              | Component Block - <Parties> | Y | Clearing Organization       Clearing Firm       Contra Clearing Organization       Contra Clearing Firm       Position Account | 
                           
                              | 1 | Account | N | Customer Account | 
                           
                              | 581 | AccountType | N | Type of account associated with the order (Origin) | 
                           
                              | Component Block - <Instrument> | N | CFI Code - Market Indicator (col 4) used to indicate Market of Assignment | 
                           
                              | 15 | Currency | N |  | 
                           
                              | Component Block - <InstrmtLegGrp> | N | Number of legs that make up the Security | 
                           
                              | Component Block - <UndInstrmtGrp> | N | Number of legs that make up the Security | 
                           
                              | Component Block - <PositionQty> | N | "Insert here here the set of "Position Qty" fields defined in "Common Components of Application Messages" | 
                           
                              | Component Block - <PositionAmountData> | N | Insert here here the set of  "Position Amount Data" fields defined in "Common Components of Application Messages" | 
                           
                              | 834 | ThresholdAmount | N |  | 
                           
                              | 730 | SettlPrice | N | Settlement Price of Option | 
                           
                              | 731 | SettlPriceType | N | Values = Final, Theoretical | 
                           
                              | 732 | UnderlyingSettlPrice | N | Settlement Price of Underlying | 
                           
                              | 432 | ExpireDate | N | Expiration Date of Option | 
                           
                              | 744 | AssignmentMethod | N | Method under which assignment was conducted Valid values: R = Random P = ProRata | 
                           
                              | 745 | AssignmentUnit | N | Quantity Increment used in performing assignment | 
                           
                              | 746 | OpenInterest | N | Open interest that was eligible for assignment | 
                           
                              | 747 | ExerciseMethod | N | Exercise Method used to in performing assignment Values = Automatic, Manual | 
                           
                              | 716 | SettlSessID | N | Settlement Session - EOD or Intraday | 
                           
                              | 717 | SettlSessSubID | N | Settlement Session enumerator | 
                           
                              | 715 | ClearingBusinessDate | Y | Business date of assignment | 
                           
                              | 58 | Text | N |  | 
                           
                              | 354 | EncodedTextLen | N | Must be set if EncodedText field is specified and must immediately precede it. | 
                           
                              | 355 | EncodedText | N | Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field. | 
                           
                              | 734 | PriorSettlPrice | N |  | 
                           
                              | Component Block - <ApplicationSequenceControl> | N |  | 
                           
                              | Component Block - <StandardTrailer> | Y |  |