Handle partial fill methods

[localappleseed]

I am using EnterLong() or EnterLongLimit() to buy a stock with quantity = 100. If only 90 shares are filled (partial fill), I need to cancel the rest pending buy (10 shares) and at the same time, using ExitLongLimit() to sell these bought 90 share.

myEntryOrder = EnterLongLimit(0, true, 100, myOrderPrice, "BUY 1001");
... CancelOrder(myEntryOrder);
ExitLongLimit(0, true, 90, GetCurrentAsk(), "", "BUY 1001"); // this quantity = 90 is obtained from OnExecutionUpdate()

A couple of questions:
1) how to let my testing fill partially? I already tried this which is not working,Tools -> Options -> Trading -> Simulator -> Enforce partial fills


2) Can the combination of CancelOrder() and ExitLongLimit() work here?

[NinjaTrader_ChrisL]

Hello, thanks for your post.

Yes, if you call CancelOrder on a partially filled entry order the remainder of the order will be canceled.

Please let me know if I can be of further assistance.

[localappleseed]

Thanks for the answer.
Could you please tell how I can enforce a partial fill in OnExecutionUpdate() or make OrderState.PartFilled true?

[NinjaTrader_ChrisL]

Hello, thanks for your reply.

From the Control Center, go to Tools>Options>Trading>Enable "Enforce Partial Fills" That will cause partial fills to occur for testing on the Sim101 account. That can be useful for testing strategies that need to handle partial fills.

Kind regards,
-ChrisL