OnOrderUpdate and OnExecutionUpdate Context

[ChazJ]

Hi,

I have a strategy uses two bars series of differing time frames. The first (primary) series uses a five minute time frame. The second series uses a one second time frame. I place all my orders on the secondary series with the one second time frame.

I have noticed that event calls to OnOrderUpdate and OnExecutionUpdate seem to execute in the context of the primary series, even though I entered the orders against the secondary series. In other words, when my strategy receives the call into OnOrderUpdate, the BarsInProgress value is always 0. I am curious as to why this is. It does not make sense. It is not a big deal since I can still access the secondary bar series data using the BarsArray object and the higher level Closes, Opens, Times, etc. objects. But it surprised me when I attempted to access bar data within these event procedures. I assumed the context would be the series that the orders were placed against.

Thanks,

CJ

[NinjaTrader_ChelseaB]

Hello CJ,

OnOrderUpdate and OnExecutionUpdate() are not data driven events. These are not being triggered from either series. These are triggered when the order changes states. An order may be submitted and may not fill for a while. It may fill when no bar is closing. It's not tied to the data. It's tied to the order updating and this is in another thread that runs independently of the data subscription thread.

If BarsInProgress is 0 when OnOrderUpdate() is triggered, then that just happens to be what the series was that most recently updated OnBarUpdate(). This could be either series.

You can use prints to check when the order is being submitted and what BarsInProgress is when the order is submitted.

if (Close[0] > Open[0])
{
Print(string.Format("{0} | Submitting order, BarsInProgress is: {1}", Time[0], BarsInProgress));
EnterLong();
}

Below is a link to a forum post that demonstrates using prints to understand behavior.

https://ninjatrader.com/support/forum/forum/ninjatrader-7/strategy-development-aa/99209-date-conditions-not-working?p=791121#post791121

[ChazJ]

Hi Chelsea,

That's exactly how I discovered this issue. I have debug statements in OnOrderUpdate() that print out the Bar time (Time[0].ToString()) and it always showed the time of the primary series bars when I used Time[0], never the secondary series which is what I place my orders on. If it happens to be based on what series most recently updated OnBarUpdate(). then I would expect many more log entries displaying the secondary series times given one-second vs five minutes.

It is not a big deal since I got what I needed by referencing the secondary series time (Time[1][0].ToString()) in my Debug.Print statement. I was just curious about this.

Anyway, thanks for the reply.

CJ

[NinjaTrader_ChelseaB]

Hello CJ,

If Calculate is OnBarClose, the Close bar is not the bar used for the order fill. The Closed bar is evaluated after it is closed. Then the order is submitted as the new bar opens. The order appears on the open of the next bar.

https://ninjatrader.com/support/forum/forum/ninjatrader-8/strategy-development/96317-enterlong-is-delayed-by-1-bar?p=782992#post782992