@0xLin_i: An intern working as a programmer in Guangzhou built a trading bot with Claude and netted $63,000 on Polymarket — with a median trade size of $7 and an average spread of 2.5%. It's not about a single winning trade; it's repeating that slight 2.5% edge 38,764 times...
Summary
An intern in Guangzhou built a trading bot using Claude and netted $63,000 on Polymarket through high-frequency small-spread trades, demonstrating the application of AI-assisted quantitative trading in prediction markets.
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A trainee programmer working in Guangzhou built a trading bot using Claude and netted $63,000 on Polymarket
Median trade size: $7. Average edge per trade: 2.5% stable spread.
No single home-run trade — just a 2.5% edge repeated 38,764 times, stacked up.
Three moves combined:
- Use a probability model to find undervalued outcomes, place low-limit orders
- Near market close, if a spread still exists, sweep the almost-certain side
- Pick up cheap tails — if the market suddenly jolts, they act as a buffer
No directional bet, just feed on that few-seconds pricing gap.
This is what running a quant system in a prediction market looks like.
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