How Kalshi Built a $2 Billion Prediction Market

Strategic Expansion & Partnerships

• Kalshi signed Donald Trump Jr. as an advisor in January to aid go-to-market strategy and user base expansion beyond the existing 2 million users.
• The company announced integration with two major brokers: Robinhood (first) and Webull (announced two days prior to the interview), shifting focus from direct-to-consumer trading to broker-embedded trading.
• Kalshi aims to expand its product offering to include sports betting across all 50 states, leveraging federal CFTC regulation to supersede restrictive state laws, and crypto/financial indices with intraday (hourly) resolution times.
• The company is rapidly scaling from 100 markets in September to 1,000 markets, attributing this 10x growth to winning a prior lawsuit against the previous administration that had previously hamstrung their ability to list new markets.

Regulatory History & Challenges

• Founders describe the three-year process of legalizing prediction markets as "the worst form of torture," involving repetitive legal submissions and navigating a hostile regulatory environment under the previous administration.
• Kalshi initially launched on-chain (crypto) but pivoted to a centralized, regulated model after realizing that unregulated platforms like Intrade and Augur faced shutdowns, concluding that federal regulation and institutional liquidity were prerequisites for massive scale.
• The company secured regulatory approval from the CFTC, becoming one of the few tech-first exchanges to own its entire clearing ecosystem, eliminating reliance on third-party clearing houses.
• Kalshi maintains an internal Special Regulatory Authority (SRA) status with a dedicated investigation department to prosecute fraud and monitor compliance, treating violations with the same severity as securities fraud.

Market Performance & Business Model

• Sports markets generated approximately 7% of total handle within seven days of launch, ranking Kalshi fourth in handle behind FanDuel, DraftKings, and BetMGM.
• Entertainment and culture categories (e.g., Spotify charts, album drops, Super Bowl halftime show details) have emerged as the fastest-growing segment, with culture-related markets comprising roughly 30% of the "pie" during the Super Bowl period.
• The company operates on a CME/ICE-style model, generating revenue through trading fees, interest on customer float (significant after the election), market making activities, and future data sales.
• Leadership predicts prediction markets could eventually rival or exceed the size of the stock market, driven by the ability to price risk on a granular, event-specific basis that appeals to retail and institutional users alike.

Founder Insights & Philosophy

• CEO Tarek Mansour characterizes the line between gambling and hedging as whether the underlying event is "artificial" (like a roulette wheel) or "natural" (like Brexit or an election) and possesses independent economic relevance.
• Mansour reveals that while expected value calculations often advised against legal battles (such as the lawsuit against the prior administration), the decision to proceed was a "leap of faith" driven by the necessity of the outcome for the industry's survival.
• He notes that Kalshi's founder and his wife, Luana, personally led the regulatory negotiations and policy work, becoming experts in derivatives aggregation while building the company.
• The company's "Calche Ideas" blog serves as a social feedback mechanism where users must hold a position to comment, fostering engagement and providing a defense against media criticism by encouraging users to "put money where their mouth is."

Future Outlook for 2025

• Immediate goals include refining the mobile application to be more intuitive and fun, expanding social features to mimic the engagement loops of sports betting, and fully integrating broker trading for financial indices.
• Leadership anticipates high volatility and significant volume in 2025 due to upcoming political events, executive orders, and cultural moments, predicting potential "GameStop-style" volatility in niche markets like election margin of victory.
• The company plans to continue expanding into areas currently underserved by traditional finance, aiming to cover 100% of relevant daily news events, up from the current 15-20%.
• Mansour suggests that while the business model is inherently cyclical and less predictable than B2B SaaS, the ability to aggregate diverse interest categories allows for consistent revenue streams through repeatable daily and hourly markets.