| Tag | 
                              Field Name | 
                              Req'd | 
                              Comments | 
                           
                           
                              | 539 | 
                              NoNestedPartyIDs | 
                              N | 
                              
                                 
                                  Repeating group below should contain unique combinations of NestedPartyID <524>, NestedPartyIDSource <525>, and NestedPartyRole <538>
                                    
                                  
                                 
                               | 
                           
                           
                              | => | 
                              524 | 
                              NestedPartyID | 
                              N | 
                              
                                 
                                  Used to identify source of NestedPartyID <524>. Required if NestedPartyIDSource <525> is specified. Required if NoNestedPartyIDs <539> > 0.
                                  
                                 
                               | 
                           
                           
                              | => | 
                              525 | 
                              NestedPartyIDSource | 
                              N | 
                              
                                 
                                  Used to identify class source of NestedPartyID <524> value (e.g. BIC). Required if NestedPartyID <524> is specified. Required if NoNestedPartyIDs <539> > 0.
                                  
                                 
                               | 
                           
                           
                              | => | 
                              538 | 
                              NestedPartyRole | 
                              N | 
                              
                                 
                                  Identifies the type of NestedPartyID <524> (e.g. Executing Broker). Required if NoNestedPartyIDs <539> > 0.
                                  
                                 
                               | 
                           
                           
                              | => | 
                              545 | 
                              NestedPartySubID | 
                              N | 
                              
                                 
                                  Sub-identifier (e.g. Clearing Acct for NestedPartyID <524>=Clearing Firm) if applicable
                                  
                                 
                               |