TLDR Prediction market transactions hit a record 38.01 million last week across all platforms Polymarket led with 22.58 million transactions, over half the total volume Kalshi came in second with 14.86 million transactions Opinion ranked third with 227,500 transactions Growing crypto adoption and lower transaction costs are driving new users to these platforms
Prediction markets just had their biggest week ever, with 38.01 million total transactions recorded across major platforms. The data comes from Dune Analytics and was reported on February 23, 2026.
Prediction markets are exploding.
last week, on chain prediction markets hit a new all time high with 38.01M transactions, signaling massive growth in decentralized betting and forecasting.
platforms like Polymarket and Kalshi are driving the surge, as users increasingly turn… pic.twitter.com/NWlXRGFpvT
— Unique singh (@uniquesingh__) February 24, 2026
Polymarket led the pack with 22.58 million transactions for the week. That is more than half of all activity recorded across the sector.
Kalshi came in second place with 14.86 million transactions. Opinion finished third with 227,500 transactions, which tracks price prediction activity specifically.
Prediction markets let users trade on the outcomes of real-world events. These include politics, sports, crypto prices, and global news.
Trades are settled automatically using blockchain technology. This removes the need for a central authority to decide outcomes.
Polymarket has built a reputation for having a simple interface and a wide range of available markets. That has helped it attract both new and experienced crypto traders.
How Prediction Markets Work
When an event happens, smart contracts pay out winners automatically. Users buy shares that represent a yes or no position on a given outcome.
The prices of those shares shift based on what the crowd believes will happen. This makes prediction markets a type of crowd-sourced forecasting tool.
Kalshi