As of December 23, the platform has recorded over 18.5 million transactions for the month. To put this in perspective, Kalshi logged roughly 22 million transactions in all of November 2025.
This means that in just 23 days, the platform has already reached 84% of last month’s total. If this momentum continues, Kalshi could surpass 25 million transactions in December and end the year with over 100 million all-time transactions.
Event trading allows users to speculate on outcomes of real-world events, such as economic indicators, election results, or weather patterns. Each trade is tied to a yes or no outcome, creating a unique market where investors can test predictions or hedge risks. Platforms like Kalshi provide a legal and regulated way to access these markets, unlike traditional prediction sites.
Strong Momentum and Growing Adoption
The recent transaction surge reflects a broader trend in alternative markets. Investors are increasingly exploring new ways to engage with financial products that go beyond stocks and crypto. According to a recent report from the Commodity Futures Trading Commission, event-based trading is one of the fastest-growing regulated derivatives markets in the United States. Kalshi’s transaction growth demonstrates that users are actively participating and that the platform’s infrastructure can handle high volumes.
A real-world example highlights this trend. In November, traders on Kalshi heavily participated in markets predicting the Federal Reserve’s interest rate decisions. Millions of dollars in trades occurred as users sought to hedge risks or capitalize on expectations for rate changes. This type of engagement underscores the platform’s appeal for both retail and professional investors.
As of December 23, @Kalshi has already recorded over 18.5M Monthly Transactions so far this month.
For context, @Kalshi logged roughly 22M Total Transactions in November, meaning that in just 23 days, @Kalshi has already reached 84% of last month’s total.
If this pace… pic.twitter.com/wBVdzHht51
— KalshiData (@kalshidata) December 26, 2025
If December continues at the current pace, Kalshi will not only break its monthly record but also reinforce its position as a leading platform in the event trading space. Achieving over 100 million all-time transactions by year-end would mark a significant milestone, reflecting growing trust and adoption among investors seeking innovative ways to participate in financial markets.
More About Kalshi
On December 21, Kalshi led the prediction markets space in open interest, reaching approximately 331 million dollars. This accounted for nearly 46% of the total open interest across all platforms. Open interest is the total value of all active bets on a prediction market. It shows how much money is “in play” and indicates market activity and liquidity.
Open Interest on December 21 was led by @Kalshi, with around $331M, representing roughly 46% of the total Open Interest in the prediction markets space.
Great to see more players joining, but @Kalshi keeps leading. pic.twitter.com/3AVOwE5eSJ
— Martins (@wogaam) December 23, 2025
The figure underscores the platform’s growing influence and the scale of activity in regulated event trading.
Disclaimer
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