# Thread: Idea for a very good EA!

1. ## Idea for a very good EA!

Hi, I have been reading forum this morning and got interesting idea in my mind. There are so many strategies and EA, some of them are good, some off them are not very good.

The idea is simple and i can bet that somebody already had it but...

There are four strategies with 50% win rate. We need strategies that work on the same time period and use different instruments to make a forecast. Chance that all this systems will fail together is 0.5*0.5*0.5*0.5 = 0,0625 it means that we will win in 100%-6,25%= 93.75%

Now what will we have if we take ten, fifteen systems. Yes we will have only couple trader per month but chance to win will be very high.

2. OK, give me 4 strategies with 50% win rate and they will be combined to one. But I don't think this will work.

The main problem here: find 4 strategies with overlapping signals, but based on various indicators. A signal in the "combined" EA can only be considered valid if all 4 strategies show this signal.
Hard to find such ones.