Thank you for your answers. I do not automate a stop for my systems, I am just trying to get some rules around when and why I will stop a system that is no longer performing. So far I havent done so because they are all doing good . However, they will not do so forever and I will probably have to stop some in the future. I would like to have a mechanical way to look at it.

@Vonasi , I have done my risk analysis and I can take a big Drawdown and thats ok. Just my ego that will be hurt 😉 . However, at some point you will finally have to stop something that is going wrong, the question is when? If one of your system is performing bad, how long will you wait until you stop it? what will make you take that decision?

I just want to be prepared when that day comes. We put a lot of work in analysing and test our system before we put them in live mode, but I believe we should also have some measurement for if/when they are obsolete.