A fake-money app for practicing AI-run stock trading

The concept is a learning app where people create a stock with fake money and let an AI agent such as Claude or Codex research and make trades. The goal is not to claim that AI can beat the market. The goal is to help people practice giving instructions to an AI agent and supervising its choices without risking real money.

Users could set an strategy, risk limits, position size, and cash rules. They could review the reason for each buy or sell, approve every trade, or allow the agent to act on its own within the rules. The app would compare different agents, prompts, and strategies against .

It would also record instructions, , trades, and results so users can see what worked and improve over time. One example is a fake $100,000 with no more than 10 companies, at least 20% kept in cash, no more than 10% in any one company, and a clear reason and risk note before each trade.

Key points

  • The app would use fake money, so users can practice without real losses.
  • Claude, Codex, or another AI agent could research stocks and suggest or place trades.
  • Users could set rules for risk, cash, number of holdings, and position size.
  • Users could approve every trade or let the agent act within preset limits.
  • The app would save instructions, , trades, and for later review.
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