Polymarket vs the Polls: Why Prediction Markets Are Crushing Pollsters — and What That Means for Democracy
In the 2024 US presidential election, Polymarket traders called the outcome while cable-news pundits were still hedging. That might have been a fluke. But when prediction markets then nailed South Korea's snap election with 95% accuracy, Canada's federal contest at 92%, and Portugal's 2026 vote at 99.5%, the pattern became impossible to dismiss. Across 14 major elections tracked since late 2024, financial prediction markets have systematically outperformed traditional polling — not by a little, but by margins that call into question why we still commission polls at all.
The numbers are staggering. Polymarket processed $22 billion in trading volume in 2025 alone, followed by Kalshi at $17.1 billion. By February 2026, Polymarket hit a record $7 billion in monthly volume with over 450,000 active traders. These aren't niche crypto experiments anymore — they're information engines operating at institutional scale.