Quote from MAESTRO:
There are over 1000 black box based hedge funds in the US. There are forums with thousands of members solely dedicated to the automated trading. Our own fund runs over 200 robots. You get an idea.
200 models... All active? If so, how many in archive?
Anyways, nice number. I've got 57 that I actively monitor and 16 that are actually live, as of this writing. (and I'm solo)
My point is, there no limit to the number of systems out there. The number will keep on growing because the market changes. If the market didn't change, the # of models would be static too.
I'm going to skip through all the little ET discussion patterns and get right to the end of all this... and say that it comes down to what Robustness is and whether it exists or not. Majority of ET developers tend to talk about robustness via Walk-forward or out-sample data, but that really doesn't define whether the models itself is robust. Most "believe" in the concept that robustness is possible without truly understanding what it is.
Only my 2 cents,
.... and I stopped thinking about developing a "Robust System"
