Setting Default Quantity

[werido]

Hi,

when I'm in the strategy wizard, I go to the order management tab to program an "enter long position" and I type 200000 for the quantity in the space that says "Quantity" and that's been working fine. But, before I write that in, there is already the words "Default Quantity" and I was wondering how I can set that default quantity to always be 200000 so that I wouldn't have to keep typing it in.

Thank you.

[NinjaTrader_RyanM1]

Hello Werido,

You can set DefaultQuantity in the Initialize method.

protected override void Initialize()
{
DefaultQuantity = 200000;
}

[werido]

Thanks. Is there a way to do that in the Strategy Wizard window?

[NinjaTrader_RyanM1]

Thanks for the reply. With the strategy wizard you would have to change this slightly.

First create a User Defined Inputs for your order quantity and set the default of this to 200000.

Then, within your order placement actions, select this input for your quantity.

[scottyheist]

Hi Ryan,

Wouldn't it make sense to have a DefaultQuantity field in the simulator tab (please see attachment) rather than having to set it in using code?

I always use 500 as my DefaultQuantity and so I usually have to make a semi-redundant variable in my strategy called 'Amount'.

It'd cut down on a bit of time if you always use the same DefaultQuantity across all of your strategies, in the same way we define a commission for all strategies.

Cheers

[NinjaTrader_Bertrand]

Thanks for the thought Scotty, have added this item to our feedback tracking list (#2901).

You generally can also set a default quantity from the UI directly - it will then override what the strategy internally uses.

[scottyheist]

Hi Bertrand,

Sorry, but where in the UI can I do this?

Thanks

[NinjaTrader_Bertrand]

Scotty, when you add your strategy...go to the order properties section and choose to set your quantity ByDefaultQuantity, then enter your amount.

[scottyheist]

Ah, do you mean as I've done in the attachment?

[NinjaTrader_Bertrand]

You're mixing up two UI's here. For running the script the left section in SA would be important, as here in the lower order properties section you can override what the strategy would do as qty per code. Choose here ByDefaultQuantity and then enter your amount directly.

[elliot5]

Changing execution quantity according to vol

How can you change the size of execution if for example the ATR is above a certain level?

This is the current code for execution...

{
EnterLong(DefaultQuantity, "Long");
}

I tried doing it with this snippet after onbarupdate... doesnt work.--- compiles but doesnt change the size traded.


if (DailyATR(5)[0] > 15
&& DefaultQuantity >1)
{
DefaultQuantity = DefaultQuantity/2;
}
else
{
DefaultQuantity = DefaultQuantity;
}

[NinjaTrader_Bertrand]

everington_f, from the UI then how does the script determine order qty by, is this set to ByDefaultQuantity or ByStrategy still?

[elliot5]

I currently adjust the default quantity in the UI window, and set the size via "default Quantity".




EntryHandling = EntryHandling.AllEntries;
EntriesPerDirection = 1;
CalculateOnBarClose = false;
　
TraceOrders = true;
ExitOnClose = true;
TimeInForce = Cbi.TimeInForce.Gtc;
DefaultQuantity = 1;

}

protected override void OnBarUpdate()
{
　
　
//************************

if (DailyATR(5)[0] > 75
&& DefaultQuantity >1)
{
DefaultQuantity = DefaultQuantity/2;
}
else
{
DefaultQuantity = DefaultQuantity;
}