If 10 traders are armed with the same powerful trading strategy, one of the most important things that distinguishes the successful traders from the unsuccessful is their money management in trading.
Money management is concerned with how you systematically decide how many lots to trade in any single trade. This decision must not be based on impulse or instincts or emotions! If it is, you will find yourself exposed to a deadly risk of ruin.
Sometimes we hear of a trader who, after making a huge killing based on a fluke, feel so emotionally charged-up and confident that he decides to place a large position in his next trade, exposing his trading account to obscene risk. Trading like this means it’s just a matter of time before huge losses dwarf the wins, and the trader is devastated emotionally and financially.
When placing a trade, I always ask myself: how many percent of my account am I prepared to lose if I get stopped out of this trade?
As a rule, I risk no more than 3 % of my account size in any one trade.
For example, my trading account is now $20,000. This means that if the stop-loss for this trade is triggered, I am prepared to lose 3% of $20,000 = $600.
If my stop-loss is 30 pips, and the $value per pip is $10, then the number of lots I place for this trade is
$600 divided by 30, and then divided by 10 => 2 lots!
In this way, I systematically decide how many lots I trade, based on the Stop-loss level of my trading strategy, and also based on my existing account size. Such a decision must never be based on how good or confident you feel, i.e. you must not suddenly decide to trade 10 lots just because you feel very confident. Rather, money management is always based on
1) How many percent of your account you are prepared to risk per trade
2) Current account size
3) Stop-loss level (how many pips away from entry price)
Strictly maintaining this discipline has served me very well and helped me compound my trading account several times over!