Appendix D: Order State Change Matrices

E.1.d — Unsolicited reduction of order quantity by sell side (e.g. for US ECNs to communicate Nasdaq SelectNet declines)

Time Message Received (ClOrdID, OrigClOrdID) Message Sent (ClOrdID, OrigClOrdID) Exec Type OrdStatus Order Qty Cum Qty Leaves Qty Last Qty Comment
1 New Order(X)       10000        
2   Execution(X) Rejected Rejected 10000 0 0 0 If order is rejected by sell-side (broker, exchange, ECN)
2   Execution(X) New New 10000 0 10000 0
3   Execution(X) Restated New 9000 0 9000 0 ExecRestatementReason="Partial Decline of OrderQty"
4   Execution(X) Trade Filled 9000 9000 0 9000

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