Kalshi Visits Surge 1,500% Despite Regulatory Pressure

Kalshi has experienced a sharp rise in US web traffic over the past year, reflecting the prediction market platform’s rapid expansion even as regulators and courts continue examining its growing event-contract business. According to Similarweb estimates, Kalshi recorded 15.4 million visits from the United States in July, up roughly 1,520% from just under 1 million visits in August 2025.

US users accounted for nearly 80% of Kalshi’s total traffic in July, compared with 72.8% in August 2025, showing that the platform’s growth remains heavily concentrated in its domestic market. The increase comes as Kalshi faces legal challenges over whether its sports-related contracts should fall under federal regulation or state gambling laws, with New Jersey taking the dispute to the US Supreme Court.

Trading volume grows even faster than web traffic

Kalshi’s rise in website visits has been accompanied by even stronger growth in trading activity as prediction markets gain wider adoption. The platform recorded approximately $40 billion in monthly notional trading volume in August, up from $874 million a year earlier, representing an increase of around 4,500%, according to Dune Analytics data.

Across the broader prediction market sector, monthly notional volume rose to $50.7 billion from about $2 billion over the same period. Kalshi accounted for nearly 79% of the latest industry total, highlighting its dominant position within the market. Sports-related contracts represented 83% of Kalshi’s trading volume in July, according to Barron’s. Traffic Also Rises From Restricted Jurisdictions Kalshi has also seen increased website traffic from countries where direct access to its trading platform is restricted.

Canada generated roughly 450,000 visits in July, compared with about 50,000 in August 2025. Traffic from the United Kingdom increased to around 296,000 visits from 31,000 over the same period. Both Canada and the UK are listed in Kalshi’s member agreement as jurisdictions where users are currently prohibited from directly accessing or trading on the platform.

However, Kalshi partnered with Canadian financial services company Wealthsimple in June to provide access to nearly 4,000 eligible Kalshi contracts through a separate application.

US remains Kalshi’s core market

Despite the rise in visits from Canada and the UK, their share of Kalshi’s overall traffic declined as US growth accelerated even faster. Canada’s share fell from 3.8% in August 2025 to 2.3% in July 2026, while the UK’s share dropped from 2.4% to 1.5%.

Sources:

https://news.kalshi.com/p/wealthsimple-predict-kalshi-canada-prediction-markets

https://cointelegraph.com/news/kalshi-traffic-soars-regulatory-pressure-mounts

https://www.barrons.com/articles/kalshi-polymarket-supreme-court-7591720d

https://kalshi.com/docs/kalshi-member-agreement.pdf

https://dune.com/datadashboards/prediction-markets