People have been offering you advice, but you ignore it to chase systems with big returns and very little history.
Collective2 is a lesson in survivorship bias. If you take a large collection of trading systems, over the short term there will always be some small number of systems that will have excellent results from little more than chance. If you filter for excellent returns and accept short periods of time, you will find those systems. However as their returns are just an effect of luck and your selection process, they are unlikely to continue making returns into the future. So as you join them you are most likely joining precisely when their great results will end. This is not coincidence, it is the inevitable result of bad selection process.
Even filtering for longer periods of times can identify systems that have just been lucky, though there will be fewer of them. This is because the filtering process itself identifies all systems that have been doing good but doesn’t tell you if the performance was luck or skill.
As I’ve said before, there is no rush to join an apparently great strategy. A good working strategy by definition will still be working months later. If you see an interesting system put it on a watch list and give it time to further prove itself. By waiting and watching you separate your selection process (which always finds good looking systems) from the actual results of the system (which might or might not carry forward those good results). This is very similar to forward testing or out-of-sample testing when developing a system.
If you want to be even more careful wait for the strategy to operate through different market moods. If a system looks good but has only traded its underlying asset as it moves in one direction you don’t really know what it will do when the underlying turns the other direction. Very often systems are little more than leverage on the underlying and you don’t need to pay someone a fee to get that.
