How everyday US investors are vibe-coding algorithms to automate trading strategies by connecting their stock portfolios to AI agents built with Claude or Codex (Hannah Erin Lang/Wall Street Journal)

Everyday US investors are now "vibe-coding" algorithms to automate their trading strategies. They are connecting their stock portfolios to AI agents, which are built using tools like Claude or Codex. This trend marks the emergence of the "robot retail investor," where Americans are increasingly entrusting their investments to artificial intelligence for automated trading.