Quote from osorico:
As an intraday futures trader its like this for me, based on portfolio cash value...
2% max loss per trade
5% max loss in a day
+ Regardless of number of contracts.
+ Max loss per day ALWAYS takes precedence. If daily max is hit, done for the day. Dependant on hindsight analysis, possibly no trading for a to-be-determined period of time.
+ parameter monetary values are adjusted weekly, not daily or dynamically.
+ parameters are MAX values... the option to cut losers prior ALWAYS exists.
So, my answer to the original question of drawdown is 2% of portfolio cash value as determined at beginning of the trading week, on any given trade.
Osorico
Just because you can doesn't mean you should.
I won't set a fixed limit on my loss.
All my stop-losses are technical in nature - I stop-loss because I have been proved wrong. the trend is against me.
If the loss is too large that I can't afford wiating to my technical stop level, I either reduce my position or not trade at all.
So, I have high volatility in my P&L, and thus have to face losing big bucks once in a while.