The Wall Street Journal has a piece by Hannah Erin Lang on ordinary US investors wiring their brokerage accounts to agents built with Claude or Codex, then letting the resulting code trade for them. No quant background, no firm, no risk desk. A prompt, a broker API key, and a strategy that exists because a model wrote it. Retail algo trading is not new. Backtesting platforms … [Read more...] about Retail Investors Are Vibe-Coding Trading Algorithms With Claude and Codex