Quote from intradaybill:
No problem. To buy 2500 SPY you currently need about $450K. Much above 4x margin in your case. This means that you may have used hypothetical profits in your backtest to size positions. This is highly unrealistic backtest. I would suggest you try again with a fixed 100 shares positions. What do you get then for win rate, avg. trade, etc?
Well, im using prop leverage to trade and not retail accounts with just 4x.
You can see that worst drawdown was just $17k and this was in 2008 crazy times. Normally it gets no where near that, but even still on a $100k bank i feel a 17% drawdown is not so bad. So i dont feel im using hypothetical size in my backtest as systems bank size is more than adequate to cope with that size of drawdown.
As for trading 2500 shares, i would only require $450k if i was trading with a retail broker. My example above shows that the intial bank is more than enough for the drawdowns so why use only 4x, why not use prop leverage and then you can trade more effientley making better use of your capital. Whats the point of 4x if it does not put your capital to maximum work for you?...........And Im still well within my risk management.
I can get you the stats for 10x less if you like and post them here, a size of just 250 shares but it will be exactly the same results just 10x less overall net profit. Win rate and profit factors will be the same.