Hi Guys,
20% portfolio heat means you 20% of capital everytime you re-enter the market, after being fully exited. For example if you run the system and twelve trades come up as per Nizar's 1.5% risk...... and you take them then you immediately have 18% risk in the market. The next day the US invades Iran, oil spikes and the markets tank 20%. Immediately your account is down a minimum of 18%. That is the effect of portfolio heat. It is the amount of equity you are willing to risk at any one single point in time, that you can control. I personally suggest 15% as a max (although the system will show you where the max is in TradeSim on the portfolio heat chart) as it takes nearly 20% to gain that amount back.
I just wanted to make a point regarding risk management in designing the system and understanding what the terms may mean in real time trading experience.
Cheers
Shane