Why quantitative traders are using complex math models to hijack your weekend sports bets
DRW is building a dedicated prediction-market desk for platforms like Polymarket and Kalshi, signaling that major quantitative firms now see prediction markets as a real trading venue. Similar hiring is happening at Wintermute, IMC, OKX and Crypto.com. The main attraction is trading volume and market inefficiency: Polymarket processed tens of billions in 2025, with especially large sports markets. The edge these firms seek is not necessarily better forecasting of outcomes, but arbitrage and short-term trading around pricing gaps, latency, and fragmented liquidity across venues. Examples include mispricings between Polymarket and Betfair, where one market can lag another for hours. Traders use familiar quant tools such as microstructure arbitrage, cross-platform arbitrage, and statistical models for sports. Skeptics argue sharp sports bettors, not institutions, still set the best prices, but the talent migration and infrastructure buildout are accelerating.
