Another overill issue

[gregm]

I am running a strategy that returns an overfill error - it closes all positions and shuts down the strategy.

Basically I am just trying to close out a short position and open a long position. My statements are:
_exit = ExitShort();
_entry = EnterLong(contracts);


contracts = 1 here. Do I need to delay between these 2 statements (is that possible?). This works when backtesting but not running as a strategy running in real time.

[NinjaTrader_RyanM1]

Hi gregm,

For position reversals you don't need both ExitShort() and EnterLong(). EnterLong() by itself will take care of closing the short position and opening a long position.

[gregm]

OK thanks - but I would think ExitShort would close my position anyway and then EnterLong would just open a new position ?

or are these happening too fast ? I am just trying to understand what is going on.

[NinjaTrader_RyanM1]

Yes, exactly. The problem is sending them at the same time. If you wait until the ExitShort() order is filled before sending EnterLong(), it would submit with the right quantity. Since EnterLong() can take care of reversals already, this level of control isn't typically needed.

[gregm]

OK sorry to continue this but I need separate commands as one routine closes a trade and another opens a trade (and I don't know when closing a trade if the logic will be opening a new one).
So I need to close the trade and then wait for the position to close before my logic continues. What can I use to yield until the ExitShort is successfully completed.

I tried using a While !Flat after the exit command to wait (but this just locked up when loading the strategy.

Flat was defined as:
private bool Flat { get { return Position.MarketPosition == MarketPosition.Flat; } }

thanks

[NinjaTrader_RyanM1]

A simple check would be to make sure that you're flat before submitting EnterLong(), and then you'll also need to add some control that this is only processed when the long signals are valid. You could do this with a bool flag or just duplicating the conditions used in ExitShort().

if (Position.MarketPosition == MarketPosition.Flat)
EnterLong();

If you wanted the most control, you could structure your orders as IOrder, and then monitor for the fill state on the exit short order before submitting enter long. This sample can help with a lot of the techniques needed for this:

http://www.ninjatrader.com/support/forum/showthread.php?t=7499