I tested some trading robots, met some IT guys who create trading robots based on AI. I wouldn't trust my money to any of these algorithms, from my experience some of them were workable for some short time and than started making stupid mistake that I would've never made or a trading result was very unimpressive like 1-3% a month. I'm not saying there are no good AI for trading but if there is a good one, nobody will sell it or even tell about it.