Kalshi's US Visits Soar 1,500% Amid Intensifying Regulatory Pressure
Kalshi, a major prediction market platform, has experienced explosive growth in US web traffic over the past year, highlighting rapid business expansion amid increasing scrutiny from regulators and courts concerning the legality of its sports-related contracts. According to Similarweb data, US visits surged to 15.4 million in July, a 1,520% increase from August 2025. At the same time, monthly trading volume surpassed $40 billion, a 45-fold rise compared to a year ago.
Traffic Growth and US Market Focus
According to Similarweb data, Kalshi recorded 15.4 million US website visits in July 2026, a 1,520% increase from under 1 million visits in August 2025. US web traffic rose from 72.8% to 80% of overall visits, highlighting Kalshi's growth is heavily concentrated in the domestic US market.
Despite restrictions on operations in some foreign jurisdictions, the majority of web visits come from the United States, affirming the key role of the US market to Kalshi’s business expansion.
Trading Volume Growth Outpaces Traffic
Kalshi’s monthly notional trading volume surged from $874 million in August 2025 to $40 billion in August 2026, nearly a 45-fold increase. This mirrors the broader prediction market industry's growth from $2 billion to $50.7 billion over the same period, with Kalshi representing about 79% of the total.
Over 80% of Kalshi's trading volume relates to sports contracts, fueling legal debates over whether these contracts fall under federal regulation or state gambling laws. The jurisdiction of New Jersey has escalated the dispute to the US Supreme Court, challenging the legality of these contracts.
Traffic from Restricted Jurisdictions
Kalshi's website visits showed sharp rises from restricted countries such as Canada—from 50,000 in August 2025 to 450,000 in July 2026—and the UK—from 31,000 to 296,000 visits.
Kalshi’s member agreement currently prohibits direct access and trading by users in these jurisdictions. To navigate restrictions, in June 2026 Kalshi partnered with Canadian financial services firm Wealthsimple, offering access to about 4,000 eligible Kalshi contracts through a separate app.
Despite the increase, Canada’s and the UK’s share of overall Kalshi traffic slightly declined. Cointelegraph reached out to Kalshi regarding these traffic patterns from restricted areas but received no response by publication.
Why it matters
Kalshi’s dramatic rise in US traffic and trading volumes highlights significant growth in the prediction market sector, especially within the American market where the platform has gained widespread adoption. Concurrently, legal disputes surrounding the classification and regulatory status of sports contracts underscore increasing scrutiny from regulators and courts, potentially shaping future industry regulation. The growing traffic from restricted jurisdictions points to the complex challenges of managing market access amid globalized demand and multifaceted legal environments.
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