Prediction market platforms posted their strongest recorded week throughout April 6–11, with sports activities, politics and geopolitical buying and selling pushing mixed quantity to new highs. Activity surged across the Masters Tournament, U.S. election-related markets and worldwide occasions, led by Kalshi and Polymarket.
Tracked knowledge confirmed Kalshi reached an all-time weekly better of $3.54 billion in notional quantity, up 21.8% from the prior week. Polymarket adopted with $2.48 billion, a 25.5% week-over-week enhance. Together, the 2 platforms generated $6.02 billion for the week, edging previous the earlier mixed excessive of $5.94 billion throughout the March 16 interval when March Madness exercise was at its peak.
Including different monitored platforms, whole business quantity crossed $6.5 billion for the week.
Masters Becomes Kalshi’s Biggest Sports Event
The Masters delivered the primary sports activities catalyst. According to DeFi Rate, Kalshi reported $545 million traded throughout tournament-related markets, making it the biggest single sports activities occasion within the firm’s historical past.
That determine included contracts on the outright champion, spherical leaders, scores on chosen holes, head-to-head matchups and proposition markets. The fundamental Masters winner market alone reached $460.3 million in notional quantity, rating second in Kalshi historical past behind solely the 2024 presidential election winner market, which dealt with $535 million.
Rory McIlroy received the match after a unstable week at Augusta National. Reports stated he held a six-shot lead after Friday, misplaced that benefit throughout Saturday’s spherical, then entered Sunday tied for first with Cameron Young earlier than regaining the lead late and successful once more. The end result marked his second straight Masters title, making him the fourth golfer to win back-to-back at Augusta National in accordance with the equipped studies.
Kalshi customers may purchase and promote contracts earlier than market shut, permitting reside buying and selling as leaderboard positions modified over the weekend.
Sports and exotics made up 85.8% of Kalshi’s weekly quantity. Other sports activities merchandise additionally contributed, together with MLB, NBA, NHL and NCAA males’s basketball.
Polymarket Gains Through Politics and Macro Themes
While Kalshi’s week centered on sports activities, Polymarket’s greatest carry got here from political and macro classes. The platform’s Trump-related markets rose 141% week over week to $488.3 million, whereas broader politics markets elevated 58.7% in a single cited dataset and $354.2 million in class quantity.
Combined Trump and politics buying and selling reached $842.5 million, or 34% of whole Polymarket exercise for the week.
Markets drawing consideration included U.S.-Iran battle contracts, 2028 U.S. presidential election positioning, April Federal Reserve charge choice markets, World Cup winner buying and selling and Formula 1 championship markets.
Polymarket’s sports activities class additionally crossed $1.04 billion for the week, supported by greater than $108 million throughout Masters-related markets. Crypto was the one main class to say no, slipping 5.9% to $474.6 million.
The platform generated $7.73 million in weekly charges and held 92.9% of all tracked on-chain prediction market charge income.
Trade Size Growth and Regulatory Questions
Transaction counts confirmed totally different consumer habits throughout the 2 leaders. Kalshi processed 22.2 million transactions throughout the week, whereas Polymarket dealt with 22.3 million. Despite comparable counts, Kalshi held greater than a $1 billion quantity lead, indicating bigger common commerce sizes.
Average commerce dimension on Kalshi was about $159.70, in contrast with $110.77 on Polymarket. Supplied market evaluation advised Kalshi’s sports-heavy buyer base tends to put bigger particular person wagers, whereas Polymarket customers extra typically commerce smaller positions at larger frequency.
Some observers argue sportsbooks may face rising competitors from prediction markets as sports-event quantity grows. Reports famous greater than $545 million was wagered on Kalshi for the 2026 Masters alone.
Legal uncertainty stays a part of the sector outlook. One equipped report stated a future U.S. Supreme Court choice could decide whether or not states maintain authority over prediction markets or whether or not federal jurisdiction applies.
