So, just because I am slow; I was sure I heard / read you saying that you would need to trade a notional value of miniumum around 600.000 USD to get the diversification gradual easing in and out of positions that your your system requires. But from your reports repo it looks like you are trading aroud 400.000 GBP.
So based on this; are you saying that the capital you deposit to your IBKR trading account is 41,666 USD (so minimum margin requirement basically)?
No. I have 400K notional capital, and that is what I use to scale my positions. That is only sufficient to trade 30 or so markets and deal with the issue you describe, but I now use a dynamic optimisation method to cope with this and still have 140 odd markets in which I could potentially take positions, with perhaps 20 or so actually having positions.
And I have 400K in cash in my trading account, of which perhaps 1/4 is being used for margin.
I'm not sure where the 600 figure came from or indeed 41.666?
GAT