| 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) | Trade | Partially Filled | 10000 | 1000 | 9000 | 1000 | Execution for 1000 | |
| 4 | Replace Request(Y,X) | 8000 | Request decrease in order quantity to 8000, leaving 7000 open | ||||||
| 5 | Execution (Y,X) | Pending Replace | Pending Replace | 10000 | 1000 | 9000 | 0 | "Pending replace" order status takes precedence over "partially filled" order status | |
| 6 | Execution(X) | Trade | Pending Replace | 10000 | 1500 | 8500 | 500 | Execution for 500 | |
| 7 | Execution (Y,X) | Replace | Partially Filled | 8000 | 1500 | 6500 | 0 | ||
| 8 | Execution (Y) | Trade | Partially Filled | 8000 | 3500 | 4500 | 2000 | Execution for 2000 | |
| 9 | Replace Request(Z,Y) | 6000 | Request decrease in order quantity to 6000, leaving 2500 open | ||||||
| 10 | Execution (Z,Y) | Pending Replace | Pending Replace | 8000 | 3500 | 4500 | 0 | ||
| 11 | Execution(Y) | Trade | Pending Replace | 8000 | 4000 | 4000 | 500 | Execution for 500 | |
| 12 | Execution (Z,Y) | Replace | Partially Filled | 6000 | 4000 | 2000 | 0 | ||
| 13 | Execution(Z) | Trade | Filled | 6000 | 6000 | 0 | 2000 | Execution for 2000 |