I have developed a system that gets a 65% win rate and a profit factor of between 2 and 4 each year, depending on the year assuming a standard position size. The system trades the S & P 500 Index of 500 (not the index itself). Is this the best profit factor and win rate I can expect to achieve? I'd love to push it upto 90%. What's yours?
I presume you mean profit factor on a per trade basis? If so, the number of trades per year is very important. If you are getting those stats with only one trade per year, it's poor. If 200 trades/year then great!
A profit factor of 2-4 is really, really good, but it begs the question, how many trades are in your sample size?
If those are real-account figures, you have everything you need. If this is backtesting results, with stocks, the reality if probably a little different ... anyway, assuming no error hidden in these results, I would start trading the system at minimum position size. May-be you can create a journal here and report how it goes. My primary system reports between 1.69 & 2 (P/F) depending on the configuration (I trade 3 configurations) - that's on 6 years backtesting, CL intraday 100-volume, approx 1100 trades total (1/2 of that for the P/F 2). Live trading since April yielded about 60% of the prior backtesting avg/trade on about 55 live trades.