C.1.b: Part-filled order, followed by cancel/replace request to increase order qty, execution occurs whilst order is pending replace – Appendix D: Order State Change Matrices – FIX 5.0 SP2 – FIX Dictionary

C.1.b — Part-filled order, followed by cancel/replace request to increase order qty, execution occurs whilst order is pending replace

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)				12000				Request increase in order quantity to 12000
5		Cancel Reject (Y,X)		Partially Filled					If request is rejected
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	1100	8900	100	Execution for 100 before cancel/replace request is dealt with
7		Cancel Reject (Y,X)		Partially Filled					If request is rejected
7		Execution (Y,X)	Replace	Partially Filled	12000	1100	10900	0	Confirm replace has been accepted
8		Execution(Y)	Trade	Filled	12000	12000	0	10900	Execution for 10900