Quote from Chuck Krug:
How many contracts should I trade using this method?
Account size: 100k euro
Instrument: Eurostoxx 50 futures
Initial margin: 1347 euro
Maintenance margin: 1078 euro
10 euro per point
Method: stoploss 6- 8 pts
Max times of stop hits: 4 consecutive
Commission for a round trip: 6 euro/ contract.
Avg net profit per contract per month: 1091 euro
Percentage of winning trades: 58.97%
Nr of trades per day: 1.95
Stop loss = 8 x 10 = 80 + rt commission = 92
What percentage of capital you want to risk per trade? I assume 2%
92/.02 = 4600 per contract. Round this to 5K
Thus, based on fixed risk percent you can afford to trade 20 contracts.
Next you ought to look at the leverage. This is something else. It is subjective. IMO should not be more than 2x.
Based on current prices, the value of the contract is about 29K
With 20 contracts you have
20 x 29K / 100K = ~ 6 x leverage.
To reduce this to 2 you need to trade
200/29 = ~ 7 contracts
The smaller leverage factor protects you in the case of a disaster.
Anyone I knew with leverage more than 3 x eventually got ruined.
Best of luck and watch out for your leverage.
