US prediction markets see fivefold growth over eight months, Blask reports

(AsiaGameHub) –   The platform has revealed that despite the rapid growth, the category has not yet reached its historical peak.

US.- Blask, an AI-powered igaming analytics platform, has reported that branded demand for prediction markets in the US has grown over five times since August 2025 yet remains 49 per cent below the record high observed during the November 2024 US election cycle. According to the report, Polymarket and Kalshi together represent roughly 94 per cent of all branded demand in US prediction markets as of March 2026.

In Kansas, Polymarket dominates with 95.5 per cent of branded demand, while Kalshi holds just 3.5 per cent—the largest disparity noted in the analysis. The most balanced competition is found in Louisiana, where Polymarket commands 59 per cent and Kalshi 35.3 per cent.

All other platforms combined account for 6 per cent of total branded demand. Myriad is the nearest competitor outside the duopoly, with a market share of less than 1 per cent, while Robinhood has experienced the fastest growth—a year-over-year surge of +983.4 per cent—though its share remains modest at 0.24 per cent.

California leads in overall branded demand, contributing 15.9 per cent of the US total, followed by New York at 10.8 per cent. Together, these two states represent more than a quarter of the category’s nationwide interest.

Blask stated: “Unlike the sharp, short-lived spike seen in 2024, the current upswing has unfolded gradually across eight consecutive months without a comparable external catalyst. This shift points to a structural transformation in the category, transitioning from sporadic attention to sustained user engagement. Meanwhile, the competitive field has become more concentrated, not more diverse.”

“Although prediction markets continue to respond to major real-world events, the present growth trend indicates rising baseline demand—and a competitive dynamic shaped by scale rather than fragmentation,” it added.

It concluded: “As the market evolves further, the central issue is no longer whether interest will rebound, but how it will be allocated—and whether new players can effectively challenge an increasingly entrenched duopoly.”