Key Highlights
- March 2026 brought Polymarket 45.3 million site visits, surpassing November 2024’s 40 million by 13%
- Kalshi experienced 13 million visits in March, approximately doubling its November 2024 performance
- Year-over-year growth shows Polymarket traffic climbing nearly 400%, with Kalshi up roughly 320%
- The single-day traffic crown remains with Election Day 2024 for both services
- Markets focused on Iran conflict have catalyzed expansion while raising ethical questions
Prediction market platforms Polymarket and Kalshi experienced unprecedented growth during March 2026, with visitor numbers exceeding even the massive engagement seen during America’s 2024 presidential race.
Data from Similarweb indicates Polymarket attracted 45.3 million combined desktop and mobile visits throughout March. This marks approximately a 13% jump compared to the 40 million visits achieved during November 2024.
Kalshi, though smaller in scale, demonstrated even more dramatic percentage growth. The platform welcomed 13 million visitors in March, approaching double the 7.1 million recorded during November 2024.
Geopolitical Conflict Betting Fuels Platform Expansion
The remarkable expansion stems largely from betting opportunities tied to the Iran crisis. These wagering markets have captured enormous attention from participants seeking to speculate on international affairs outcomes.
Year-over-year comparisons reveal Polymarket’s monthly visitor count has surged approximately 400%. Kalshi has experienced similar momentum with roughly 320% growth during the identical timeframe.
While monthly totals reached new peaks, the individual highest-traffic day remains November 5, 2024—Election Day. That single date brought Polymarket 8.4 million visitors, with Kalshi drawing 1.9 million.
Following the 2024 election conclusion, both platforms witnessed steep traffic declines. However, engagement rebounded forcefully in early 2026 as Iran-related tensions intensified.
The Iran betting surge has generated significant controversy. The New York Times documented how substantial wagers appeared on Polymarket just one day before U.S. and Israeli forces executed strikes against Iran on February 28.
These positions, frequently exceeding $1,000 individually, anticipated American strikes on Iran within 24 hours. The suspicious timing sparked concerns about potential insider information among certain participants.
Polymarket declined to address the Times’ inquiries regarding these transactions. The platform stated on its site that its Middle East conflict predictions provide “particularly invaluable” insights during “gut-wrenching times.”
Platform Ethics Under Intensifying Scrutiny
Kalshi suspended a high-volume market titled “Ali Khamenei out as Supreme Leader?” after wagering exceeded $54 million. The platform withheld payouts, citing policies against markets “directly tied to death,” the Washington Post reported.
Operating under Commodity Futures Trading Commission oversight, Kalshi faces regulations prohibiting war and death-related trading. Communications director Elisabeth Diana informed the Times that earning profits from death predictions is “not allowed on Kalshi, and that’s a good thing.”
Kalshi maintains various Iran-connected markets, including speculation about potential U.S.-Iran nuclear agreements.
Polymarket encountered renewed criticism recently for hosting a market allowing predictions about when a missing American pilot, shot down over Iran, would be located. Representative Seth Moulton denounced the wager as “DISGUSTING” via X.
Polymarket responded by confirming it “took this market down immediately” and acknowledged it “should not have been posted.” The company stated the market failed to “meet our integrity standards.”
Operating predominantly internationally, Polymarket avoids the CFTC restrictions binding Kalshi. The service continues offering multiple Iran war markets, including predictions about U.S. ground forces entering Iran and conflict duration. Each market features disclaimers asserting prediction markets are “invaluable.”
