Posted on February 14th, 2008 at 11:00 AM
Some traders risk too much on their trades. For those traders, it is not a matter of IF they will go broke. It is a matter of WHEN they will go broke. In gambling, this is referred to as gambler's ruin. Imagine this experiment. You sit down at a roulette table. The roulette wheel is rigged and you know in advance that black will come up 70% of the time. You can still go broke. How could you possibly go broke when you know that black is going to come up 70% of the time? Though you know that 7 out of 10 spins will yield black, you don't know when those 7 will be. This is where money management comes in. How much do you bet on each spin to optimize your gains without ever risking going broke? There is a formula for this.