Everyone Shipping the Same AI Is the Risk, Not the AI
A brokerage just gave every customer a button that trades for them. Over 150,000 people turned it on in four months. The agents hit the platform’s tools about 30 million times a day. That’s not a bug report. It’s a structural change, and it matters more than the headlines about “AI trading” suggest. Here’s the thing nobody says plainly: those 150,000 accounts aren’t running 150,000 independent strategies. They’re choosing from a handful of shared models — the same few AI systems, pointed at the same market data, optimizing toward roughly the same goals. ...