Limit strategy to a % of an account

[stevenev]

Say I have a new strategy and I want it to only run against a % of an account ( IB to be exact ). How would I accomplish that please.

[NinjaTrader_ChelseaB]

Hello stevenev,

You would need to calculate this number either in your strategy code or manually before placing the quantity.

You can check the account balance of a strategy in real time with:
GetAccountValue(AccountItem.CashValue)

http://ninjatrader.com/support/helpG...countvalue.htm

You would then multiply this by a percentage value, convert to an int, then use this for the quantity when placing an order.

[stevenev]

Thanks, Chelsea. That would work great.

steve

[stevenev]

On 2nd thought, would this work? If the strategy is running against multiple symbols, then it could trigger multiple orders each as large as the % specified.

I am thinking another way is to have a static (persistent) variable keeping track of what is being bought/sold per strategy. This would work if ninjascript could get hold of order status, i.e. bought or sold.

[stevenev]

I see a reference to "Strategy Position" https://ninjatrader.com/support/help..._account_p.htm

That would solve my problem if that could be used in ninjascript.

[NinjaTrader_ChelseaB]

Hello stevenev,

It would be possible to use a static variable but this would not be something I could assist with.

You could write the value to a file and then read the value from other scripts.
StreamWriter - http://www.ninjatrader.com/support/f...ead.php?t=3475
StreamReader - http://www.ninjatrader.com/support/f...ead.php?t=3476

Regarding the strategies position which is separate from the account position, this can be checked with the Position object. (The Position object refers to the strategy position and not the account position)

Below is a link to the help guide on Position.
http://ninjatrader.com/support/helpG...7/position.htm

For example:

if (Position.MarketPosition == MarketPosition.Long)
{
Print(Position.Quantity);
}

[stevenev]

Thanks, Chelsea

Position object is what I was looking/hoping for. All good. This should work very well.

Regards, steve