I have two systems which are 100% in the market at all times either long or short.
System 1 is EUR/USD and has position sizing algo which increases/decreases as equity changes
System 2 is USD/JPY and works exactly like system 1
Overall portfolio is thus the sum of the two systems but this is insufficient.
I wish to:
- Increase position size of each system as overall equity increases
- This can be significant as example below:
System 1 has starting equity of $10000 and position size of ,say, 8 contracts when this increases to $12500 then 10 contracts
System 2 also has starting equity of $10000 and position size of,say 8 contracts and similarly increases to 12 contracts when equity $12500
If starting with a real figure of $10000 and both systems increase to 10 contracts total equity is actually $15000 ($10000 originally + $2500 +$2500 for each system)
I should now be trading , say 12 contracts on each system not 10 as overall, portfolio, equity has increased and I wish to take advantage of this for no increase in risk.
Strategies are independent and are not aware of one another, so it’s not possible for each one of them to know what’s the stratey profit of the other strategies.
That being the case I suggest one of you clever people come up with an elegant solution.
The big hedge funds run multiple systems on multiple strategies that all talk to one another!