Dev Tools · 1h ago
Prediction market arbitrage bot finds no sizable gaps
A developer built a matcher to find arbitrage between Kalshi and Polymarket sports markets, but found gaps close in under 10 seconds. Over 24 hours, 96% of 870 price gaps closed within 30 seconds. The matcher is now offered as a free API instead of a trading bot.
Meridian48 take
The project confirms prediction markets are efficient, not ripe for easy arbitrage—the real value was the tooling, not the trade.
Read the full reporting
Built a prediction-market arbitrage - no sizable arbitrage found →
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