Surge in Prediction Market Activity: From $0 to $4 Billion in Two Years
In a remarkable evolution, Kalshi’s monthly trading volume, which was almost negligible in early 2024, soared to approximately $4 billion by the beginning of 2026. As the nation approaches key electoral dates, students are likely to encounter advertisements for these prediction markets, along with the probabilities they assign to various political races.
The analysis titled Data Crunch: Have Prediction Markets Become More Popular Over Time?, will have students examine the monthly trading volumes of Polymarket and Kalshi from 2024 to 2026. This exercise aims to enhance their understanding of the factors contributing to significant increases in trading activity, alongside the inherent risks tied to such rapid growth.
Key Events in Prediction Market Growth
The chart illustrates several pivotal events impacting trading volume: On June 27, 2024, interest surged with the Trump-Biden debate. Following this, the Presidential election on November 5, 2024, saw Polymarket reach around $1.1 billion in trades, while Kalshi recorded approximately $0.5 billion. Both platforms observed a substantial decline in trading volume the following month.
Further developments in 2025 included a noteworthy investment announcement by NYSE’s owner on October 7, and the launch of a U.S. application on December 3. The resurgence in volumes leading to early 2026, with Polymarket achieving monthly figures of $2.8 billion and Kalshi exceeding $4 billion, marks an unprecedented growth trajectory, raising questions about sustainability and regulation in this dynamic market.
Access Additional Resources
For further information, visit the following links:
Wall Street Journal Source Article | NGPF Data Crunch + Answer Key
This data analysis aligns seamlessly with NGPF’s Gambling and Sports Betting Unit.
About the Author
Yonathan Tadesse
Based in Dallas, Yonathan Tadesse serves as a Curriculum Designer at NGPF, armed with over 12 years of experience as an educator in high school mathematics, college readiness, and financial literacy. A recognized leader in the field, he has pioneered numerous innovative programs aimed at enhancing educational access for students. An alumnus of Emory University, Yonathan is dedicated to promoting financial education for all. Beyond his professional commitments, he enjoys family activities, fitness, chess, poker, and continual learning.
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Chief Editor of Quincy City Beat — Quincy, MA's independent investigative newspaper covering Greater Boston and the entire Commonwealth of Massachusetts with fearless public accountability and free access for all readers.
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