buying power and cash stops/targets

[MicroTrends]

Is there a buying power property available?

So it is possible for any pair to do similar for any pair
Direct - GBPUSD
Indirect - USDJPY
Cross - EURGBP

SetStopLoss(BuyingPower/riskFactor)
Example
SetStopLoss(1000,000 * 2.5/100)

Failing that for each pair type we have to calculate the pip value
then the amount of pips available to trade with
and then work out the cash value again going back to use a currency based stop or target. All of which is a different formula for each pair type

[NinjaTrader_Brett]

Hello,

Im happy to say there is, however its account wide buying power downloaded from the connection. Not all connections support this however.

http://www.ninjatrader.com/support/helpGuides/nt7/getaccountvalue.htm

Let me know if I can be of further assistance.

[MicroTrends]

That's certainly handy - but buying power needs to available in realtime and backtesting for each pair type -

or a setStopLoss methods that takes the local account cash values and automatically converts it all etc.

It is easy enough to manually calculate which is fine for Direct and Indirect but when you are doing this for cross pairs it gets a little more assumptive and complex when backtesting... as you need to look up other pairs to get values for conversion and so therefore have the extra data available and the bars in memory etc but that is all possible ofcourse.

scenario:
Context of question:
Using fixed fractional position sizing for the GBPUSD is easy

When the risk factor is 2.5% of the account cash value 1000
the max risk size = 25
if the stop only needs to be 10 ticks @ 1$per tick
that is 2 positions @ 10,000 lot size

if stop = 5 ticks
that is 5 positions
however the margin requirement max position size adjusts our position size back to
3 positions at around $320 per lot of 10,000

Using fixed fractional position sizing for the USDJPY is easy
The margin is fixed by the leverage and lotsize.
The tickvalue is not constant - so all you do is calculate the stop in ticks to cash
and verify it is <= 2.5 and check the position size multiple against the margin requirement and cash size

For cross pairs - that is not so easy

I have found it easier for now to not offer any pre order submission margin req validation, position sizing or money management based on cross pairs for now - but any additions to the following welcome.


For direct and indirect it is easy and fast - but how do we do it for cross pairs in NT?

pipvalue
direct USD
tickValue = mMLotSize * TickSize;

indirect USDJPY
tickValue = ((TickSize/GetCurrentAsk()) * LotSize);

CrossPair EURUSD
tickValue=?

Margin Requirement Per Lot

Direct GBPUSD
marginReq=(LotSize * GetCurrentAsk() * ((double)1/Levarage));

Indirect USDJPY
marginReq= LotSize/Levarage;

CrossPair EURUSD
marginReq=?

Question:
What would be a good formula/ snippet for CrossPairs E.G EURGBP for calculating margin requirement and ticksize?

[NinjaTrader_Brett]

Hello,

Ok thanks, I will pass this on to management.

As far as a good formula unfortunately I am not aware of any. However I will pass up to Josh to see if he has any comments.

Let me know if I can be of further assistance.