Prediction Markets Top $28.4B in May as Kalshi Secures Lead

- Monthly prediction market volume hits record $28.4 billion with fourth straight month of growth - Kalshi takes 61% share as regulated status and institutional interest reshape market landscape On June 1, 2026, Artemis reported that prediction markets set a new high with $28.4 billion in trading volume during May 2026. This marked their fourth straight month of record growth, and the sector’s continuous climb signaled increasing institutional engagement and regulatory progress. As a result, platforms are emerging as round-the-clock financial tools rather than merely event-driven venues. According to Artemis on June 1, 2026, Kalshi established a decisive lead in May 2026. The platform logged $17.3 billion in monthly trades and commanded 61% of industry volume, and its regulated status in the U.S. fueled this surge. This regulatory advantage pushed it past Polymarket and drew significant mainstream and institutional interest. Meanwhile, decentralized platforms are also on the rise, as Hyperliquid’s launch of outcome contracts sparked strong early adoption and pointed to further on-chain market expansion. In addition, the persistent growth in volume was not tied to any single event, which highlighted a shift toward always-on engagement. Artemis data published on June 1, 2026, underscored that ongoing institutional adoption and regulatory developments continue to transform the sector. Therefore, prediction markets are evolving from niche wagering venues into widely used financial tools, and these trends reflect broader confidence in the sector’s role as essential infrastructure for financial innovation. As of June 1, 2026, 10:09 UTC, market data showed that Hyperliquid (HYPE) traded at $72.284, up 5.77% in 24-hour volume.