momo,
> You should be looking for those trades with high high
> probabilities of success.
The point is that, there is more than one way to achieve a given
return on investment:
EROI = t(RT + T â 1 )
As you said, you can use a system that provides a high probability of success (very high T). The problem is that such systems have a very low t for realistic values of R. This is the case of the system that you describe. If you make the calculations for your system, youâll see that the EROI per trade is 0.74%.
You can try to maximize t, but in real life youâll end up with a very low T. This is the case of systems that go for a home run.
Since I know the success rate of my system (T), what I like to do is to try to keep R constant by adjusting t.
I calculate all this after each trade. For example, Iâm currently sitting at R=2.67 and T=0.5833. I only trade OEX options and my target EROI is 10%.
Knowing this, t = 0.879. My goal for R is 3, so my stop will be at t/3 or about 3%.
At this point, I only need to be right 27.28% of the time to break even and 55% to achieve my target of 10% per trade. If I achieve 55% and everything stays the same and I invest the same amount of money per trade, Iâll double that amount in 20 trades.
> You should be looking for those trades with high high
> probabilities of success.
The point is that, there is more than one way to achieve a given
return on investment:
EROI = t(RT + T â 1 )
As you said, you can use a system that provides a high probability of success (very high T). The problem is that such systems have a very low t for realistic values of R. This is the case of the system that you describe. If you make the calculations for your system, youâll see that the EROI per trade is 0.74%.
You can try to maximize t, but in real life youâll end up with a very low T. This is the case of systems that go for a home run.
Since I know the success rate of my system (T), what I like to do is to try to keep R constant by adjusting t.
I calculate all this after each trade. For example, Iâm currently sitting at R=2.67 and T=0.5833. I only trade OEX options and my target EROI is 10%.
Knowing this, t = 0.879. My goal for R is 3, so my stop will be at t/3 or about 3%.
At this point, I only need to be right 27.28% of the time to break even and 55% to achieve my target of 10% per trade. If I achieve 55% and everything stays the same and I invest the same amount of money per trade, Iâll double that amount in 20 trades.
.