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Girlfriend discovered a $500 'Polygon' charge (she called him at work on…
Brief
Author @xmayeth recounts that his girlfriend found a $500 'Polygon' charge and called him on 2026-04-11; three months earlier he had told Claude, "Take $500. Trade Polymarket. Three strategies. Don't ask me anything." The AI split into three agents, executed 1,284 trades in 90 days (worst −$120, best +$2,840), and grew the joint account to $10,700 with a reported Sharpe of 3.41.
Why it matters
Girlfriend discovered a $500 'Polygon' charge (she called him at work on 2026-04-11); the author had earlier moved $500 into an AI trading setup on Polymarket and initially couldn't explain the charge.
Key details
- One-line Claude prompt: "Take $500. Trade Polymarket. Three strategies. Don't ask me anything." The bot autonomously split into three agents: BTC momentum (15-minute contracts, 91% win rate), spread buyer (buys both sides when total cost < $1, 87% win rate), and copier of 12 whale wallets (88% win rate).
- Performance over 90 days: 1,284 trades, worst day −$120, best day +$2,840, account grew to $10,700 from $500, and the author reports a Sharpe ratio of 3.41.