Explain why a trader should not risk more 1% or max 2% of an account. If for instance, trading 1 contract of NQ and putting up $500.00 each contract and risking $60.00 to $80.00 trade with hard stoplosses and a win rate of 78% on average. In such a case, is the 1% BS and if it is why? Why would one need 10,000 dollars in the account? Just asking to see your thinking on it. Or anyone elses.
I completely agree that when it comes to math, you are right. I'm not sure how to figure out what the chances are of how many losers in a row given a 78% win rate, but even if we figure 4 in a row, which would be rare with a win rate this high, you're still only down maybe $250 to $300 if this string of losers happens right at the beginning. After just a few good initial trades, you're already built some breathing room. But......
What you describe is the absolute best case scenario that is not very probable. First of all, I haven't seen any stats on who is showing a 78% win rate. I've been privy to some stats, and none approach this high win rate. It would take an exceptional trader, and if he is exceptional, having only $500 per contract wouldn't be the case. Most traders go through losses... then maybe a BE period, maybe some wins, then more wins, and by the time they are consistent with a high win rate, I'm sure they already also have some nice profits under their belt.
The second factor is the R:R ratio. If risking 60 to 80, and hence 3 to 4 points, what is the average win size? With a 78% win rate, I doubt the win is even twice the risk. If the win is 8 points, stop is 4 points, and win rate is 78%, jesus, you're pulling in shit loads of money. An 80% win rate is even awesome for 1:1.
The biggest hurdle though is that of experience. You see, in order to get such a high win rate, you have to be never scared to take the next trade, which is really hard for a newbie, or you have to be so meticulous with your entries, to afford such a high win rate, that you know exactly when to enter and when to pass. This once again is only in the realm of super experienced. The super experienced trader is not limited by capital.
But I do agree that a 78% win rate, along with a stop of $80, allowing for a full 6 stopouts lets say before going bust is good math, and after just a few initial wins, which you would expect given such a high win rate, the buffer is already there. Hopefully this win rate though is an equal mix of longs and shorts, or at least trading only one direction but during both bull and bear markets. 5 NQ points is of course possible on both up and down days, so it would be easy to focus on just one side if that is what the strategy entailed.