Oddtrader,
There is no single correct answer to your question about how much leverage someone should use, beginner or not. Also using leverage to determine trade size is, I think, mistaken thinking. However no matter how you calculate trade size, the resulting figure obviously calculates back to a 'leverage' value, so I'll get back to your question!
If you have a profitable system you will find that due to asymmetric leverage issues increasing leverage increases end profitability to a certain point, and then profitability falls away rapidly. Personally, I find '
going over the falls' destabilizing, so I try not to go there. I therefore lean to the conservative, and in practice probably trade at around 12:1 on average. This may not sound high enough to some, but the key to high profitability (IMO) is consistency, limited drawdowns, darn good money management and daily compounding, not outrageously risky positions that could do anything on the day.
For those not yet convinced of the power of daily compounding (or those who truly want to make extra-ordinary returns), download my Compound Calculator and have a play with it. My long-term goal is to do 1% a day, which translates into silly numbers very quickly. This calendar year (2005), I'm presently doing a little over 0.8% per day, which still converts into some pretty amazing figures â I just hope I can keep it up! But heck, you get what you focus on, don't you!
Anyway, it's here if anyone wants it:
http://users.bigpond.com/morleym/Compounding.htm
Cheers
~chaffcombe