AI "run" seems like a stretch, clearly the owners are humans. But I think the answer if you mean "AI does trading" is almost everyone right? Especially if you

AI "run" seems like a stretch, clearly the owners are humans. But I think the answer if you mean "AI does trading" is almost everyone right? Especially if you use the 80s and 90s definitions of AI that included expert systems. The end game for AI might not be neural networks after all, I doubt we'll know which approach is correct until the problem is solved since I don't know how else you'd provide evidence that you were right.