Kalshi is a United States-based financial exchange and prediction market that allows users to trade on the outcomes of future real-world events. The platform operates as a Designated Contract Market regulated by the Commodity Futures Trading Commission (CFTC) and offers "event contracts" as a distinct asset class for speculation and hedging.

Overview

Launched in 2021, Kalshi provides a platform where individuals and entities can buy and sell contracts tied to the resolution of specific, verifiable events across categories such as politics, finance, sports, and culture. The platform's core product, the event contract, is a type of commodity derivative structured as a swap whose payout is determined by a binary (Yes/No) outcome. This mechanism is designed to create a direct financial instrument for expressing a belief about a future event and to generate a real-time, market-driven probability of that event occurring. The model is a practical application of economist Friedrich Hayek's concept of markets as information systems, which posits that markets can effectively aggregate vast amounts of dispersed knowledge into actionable price signals. ^{[1] [11] [9]}

Kalshi positions itself as a tool for both precise hedging against event-specific risks and for speculation. For example, instead of trading broader financial instruments that bundle multiple exposures, a user can trade a contract directly tied to a single outcome, such as a Federal Reserve interest rate decision or the passage of a specific piece of legislation. The platform gained significant market traction following a key legal victory in 2025 that affirmed its ability to list contracts on U.S. political elections, a decision that contributed to its rapid growth in the prediction market sector. In late 2025, the company initiated a strategic expansion into the cryptocurrency space, aiming to integrate its regulated market infrastructure with various blockchain ecosystems. ^{[2] [1]}

History

Kalshi was launched in 2021 as a regulated prediction market. In 2023, the company filed a lawsuit against its regulator, the Commodity Futures Trading Commission (CFTC), to challenge the agency's decision to block the listing of event contracts related to the outcomes of U.S. political elections. ^{[2] [3]}

The platform experienced a surge in activity around the 2024 U.S. elections. In September 2024, the CFTC filed an enforcement action against Kalshi, but a U.S. court ruled in the company's favor in October 2024, permitting it to offer political event contracts. This legal battle concluded in May 2025 when the CFTC filed a motion to drop its appeal, a move that Kalshi stated secured the future of election-based markets on its platform. ^{[11] [10]}

Following this regulatory clarification, Kalshi focused on expansion. In April 2025, it began accepting Bitcoin (BTC) deposits, and in May 2025, it added support for Solana (SOL). In June 2025, the company closed a $185 million Series C funding round at an approximate valuation of $2 billion. Strategic initiatives continued throughout the year, including the integration of the AI bot Grok in July 2025 and the hiring of crypto influencer John Wang as its first Head of Crypto in August 2025 to lead its on-chain expansion. In September 2025, Kalshi announced a partnership with the Solana and Base blockchains to launch a grant program for developers. ^{[11] [12] [10]}

In October 2025, venture capital firm Andreessen Horowitz (a16z) announced its investment in Kalshi, citing the platform's potential to bring prediction markets into the mainstream. Concurrently, Kalshi announced plans to expand its services globally to 140 countries. ^[9]

The company's growth accelerated into 2026, with weekly notional trading volume surpassing $3 billion in March. However, this period also brought increased legal and regulatory pressure from state governments. On March 24, 2026, a Kalshi affiliate secured a license to operate as a futures commission merchant, setting the stage for the company to offer margin trading. Days later, on March 28, the state of Washington filed a lawsuit against Kalshi, alleging its markets constituted illegal gambling. This followed a temporary restraining order from Nevada regulators earlier in the month that forced the platform to halt certain markets in that state. ^{[10] [11]}

Technology and Platform Features

Kalshi's platform is built around the concept of event contracts, which function as the core trading instrument. It also provides a range of features for account management, trading, and developer access. ^[4]

Event Contracts

The primary product offered on the exchange is the event contract, which has several key characteristics:

• Structure: Most contracts are based on a binary "Yes" or "No" question about a future event (e.g., "Will the Fed raise interest rates in October?").
• Pricing as Probability: Contract prices are determined by an order book and range from 1¢ to 99¢. The price of a contract at any given time reflects the market's perceived probability of that outcome occurring. A "Yes" contract priced at 70¢ implies a 70% chance the event will happen.
• Payout: At the time of the event's resolution, contracts for the correct outcome settle at $1.00 (100¢) each, while contracts for the incorrect outcome expire worthless at $0.
• Trading: Users can buy and sell contracts at any point before the market closes, with prices fluctuating based on supply, demand, and new information.
• Legal Classification: These contracts are legally classified as commodity derivatives in the form of swaps and are regulated by the CFTC.

This structure allows users to trade on isolated outcomes, which differs from traditional financial instruments like stocks that represent a bundle of various risks and factors. ^{[5] [1]}

Platform Functionality

The Kalshi exchange provides tools and features for a range of users, from individuals to institutional entities.

• Account Management: The platform supports both individual and entity accounts and requires email and phone verification for onboarding. Security features include two-factor authentication (2FA).
• Funding and Withdrawals: Accounts can be funded via bank transfer (ACH), debit card, wire transfer, and cryptocurrency wallet. Withdrawals are available through the same methods.
• Order Types: Users can place quick orders for immediate execution or use limit orders to specify a desired price for buying or selling contracts.
• User Tools: Kalshi offers a demo account for practice, an "Ideas Feed" for users to suggest new markets, and responsible risk management tools, including options for trading breaks and personalized funding caps.
• API Access: A public API is available for all traders, allowing for programmatic trading, data access, and the development of third-party tools. The platform does not impose pattern day-trading restrictions.

The platform also runs formal incentive programs, including a Market Maker Program and a Volume Incentive Program, to encourage liquidity and high-volume trading. ^{[4] [1]}

Institutional Services

In early 2026, Kalshi began building out infrastructure for institutional clients. This includes partnerships with FIS for clearing and Tradeweb for data distribution. ^[12] The company also secured a license through an affiliate that permits it to offer margin trading to professional investors, a feature designed to improve capital efficiency, pending final regulatory approval. ^[11]

Market Categories

Kalshi offers a diverse range of markets, with some of the highest trading volumes concentrated in politics, sports, and finance. As of October 2025, active categories included:

• Politics & World Affairs: U.S. presidential and mayoral elections, government shutdowns, and international events like the Nobel Peace Prize.
• Sports: Championships for professional and college leagues (NFL, MLB, NCAA), individual game outcomes, and player awards like the MVP.
• Culture & Entertainment: Music chart performance (e.g., Taylor Swift's Billboard rankings), film award outcomes (Oscars), and television viewership.
• Economics & Financials: Federal Reserve interest rate decisions, S&P 500 price movements, and government deficit figures.
• Crypto: Price targets for major cryptocurrencies like Bitcoin and Ethereum.
• Tech & Science: Corporate developments (e.g., OpenAI product releases), space launches, and public health events.
• Climate: The number and intensity of hurricanes and other significant weather events.

These markets are supported by a central limit order book where prices are determined by user activity. ^[5] College sports, particularly the "March Madness" basketball tournament, became one of the most popular trading categories on the platform in early 2026. ^[12]

Crypto and On-Chain Strategy

In mid-2025, Kalshi began a strategic initiative to integrate its platform with the cryptocurrency and blockchain ecosystem. The stated goal is to embed Kalshi's markets into "every large crypto application and exchange" within 12 months. This strategy aims to attract crypto-native users and developers by leveraging the company's regulated infrastructure to create new financial primitives. ^[2]

Key components of this strategy include:

• Blockchain Partnerships: In September 2025, Kalshi partnered with Solana and Base to launch an ecosystem support network. This initiative includes a grant program to fund developers building tools and front-ends on top of Kalshi's platform.
• Developer Ecosystem: The company plans to transmit its real-time event data onto the blockchain, enabling developers to build applications such as advanced data dashboards, AI trading agents, and informational arbitrage venues. These on-chain initiatives are designed to be "purely additive" and complement the core platform.
• Strategic Vision: John Wang, Kalshi's Head of Crypto, described prediction markets as a "Trojan Horse" for bringing new users into the digital economy. He positioned Kalshi's event contracts as a more accessible version of crypto options, which have seen limited mainstream adoption.

The company also plans to "verticalize" its user interface, tailoring it to the specific information flows and contexts of different market categories to improve the user experience for distinct communities like sports bettors or financial traders. ^{[12] [3]}

Regulatory and Legal Status

Kalshi operates as a federally regulated financial exchange under the oversight of the Commodity Futures Trading Commission (CFTC). Its event contracts are legally defined as commodity derivatives, not company-linked securities like stocks or bonds. This distinction is central to its compliance framework, as it means that standard insider trading rules related to corporate information are generally not applicable. Instead, trading is restricted for individuals who possess material nonpublic information about the event itself. ^[1]​

Lawsuit over Political Markets

A defining event in Kalshi's history was its legal conflict with the CFTC over the listing of contracts on U.S. political elections. In 2023, Kalshi filed a lawsuit against the agency after it moved to block these markets. In October 2024, a U.S. district court ruled in Kalshi's favor. The legal challenge concluded in May 2025 when the CFTC dropped its appeal. This victory was a pivotal moment for the company, as it provided regulatory clarity and allowed Kalshi to become a prominent venue for trading on political outcomes. According to John Wang, the ruling established that prediction markets "hold the same status as normal derivatives and stocks." ^{[2] [11]}​

State-Level Legal Victories

Tennessee

In a notable legal victory for the company, a U.S. District Judge in Nashville granted Kalshi a preliminary injunction on January 13, 2026. The ruling prevents Tennessee officials from pursuing legal action against the platform for offering event contracts on sports. The judge reasoned that the types of contracts offered by Kalshi are not covered under the state's sports wagering act. This decision marked the first time Kalshi secured a legal victory in its ongoing conflicts with state regulators. ^{[15] [18]}

New Jersey

In what has been described as its biggest legal win, Kalshi secured a victory on April 6, 2026, when a federal appeals court in Philadelphia ruled 2-1 that New Jersey cannot regulate the company under state gambling laws. The court affirmed that Kalshi's event contracts, including those on sports, fall under the exclusive federal purview of the Commodity Futures Trading Commission (CFTC). This decision upheld a preliminary injunction granted to Kalshi in the spring of 2025 against the state's gambling regulators. The dissenting judge in the case argued that Kalshi's products were "sports gambling" and that the "event contract" label was a "performative sleight meant to obscure the reality." The ruling can only be appealed to the U.S. Supreme Court, solidifying it as a major victory for the company in its ongoing jurisdictional battles with state regulators. ^[20]

State-Level Legal Setbacks and Challenges

Beginning in March 2026, Kalshi faced mounting legal pressure from individual states arguing that its markets constitute illegal gambling under state laws. These state-level actions highlight a growing jurisdictional conflict between federal derivatives regulation and state gambling laws. Kalshi argues its contracts are financial "swaps" under the exclusive jurisdiction of the CFTC, a position actively supported by the federal government, which has filed its own lawsuits against states attempting to enforce local regulations. ^{[10] [15] [20]}

Washington

On March 27, 2026, the state of Washington sued Kalshi, alleging the company operated an illegal online gambling platform in violation of the state's Gambling Act and Consumer Protection Act. The lawsuit argued that Kalshi's self-description as a "prediction market" was an attempt to circumvent laws defining gambling as "staking or risking something of value upon the outcome of a contest of chance or a future contingent event." The complaint cited markets on politics, sports, and public health, and accused Kalshi of targeting young adults and college students. Washington sought to halt Kalshi's operations, recover resident losses, and obtain civil penalties. ^[13] Kalshi responded by filing to move the case to federal court, asserting that it operates legally under its federal CFTC designation. ^[10]

Nevada

In March 2026, Nevada gaming regulators obtained a 14-day temporary restraining order that forced Kalshi to halt its sports, entertainment, and election markets in that state, marking the first time the platform had to partially cease operations in a US state. ^{[15] [10]}

Michigan

On March 5, 2026, Michigan Attorney General Dana Nessel filed a lawsuit against Kalshi, accusing the company of operating an illegal gambling operation in violation of the state's Lawful Sports Betting Act. Filed in Ingham County Circuit Court on behalf of the Michigan Gaming Control Board, the suit alleges Kalshi offered unregulated sports betting markets to Michigan residents. The legal action seeks to halt Kalshi's operations in the state, with Nessel stating that her office would "hold those who sidestep Michigan’s consumer protections accountable." ^[17]

Ohio

In early 2026, Kalshi initiated a lawsuit against the Ohio Casino Control Commission after the state sought to stop the company from operating what it considered an "unlicensed sportsbook." Kalshi argued that its sports-related event contracts were federally regulated "swaps," while Ohio, supported by Attorney General Dave Yost, contended that this classification would lead to "absurd results" and that the platform was "facilitating bookmaking." On March 9, 2026, U.S. District Court Judge Sarah Morrison ruled against Kalshi, denying its request for an injunction. The judge sided with Ohio, stating that swaps traditionally involve instruments that directly affect commodity prices, such as currency rates or weather, and that "the number of points scored in the Huskies-Bobcats game does not" meet this definition. Kalshi stated its intent to appeal the ruling. ^{[18] [19]}

Arizona

The legal challenges in March 2026 also included action from Arizona. On March 17, 2026, Arizona Attorney General Kris Mayes filed a 20-count criminal complaint against Kalshi, accusing it of operating an illegal gambling business and engaging in unlawful election wagering. The charges alleged that the company accepted bets from Arizona residents on outcomes including professional and college sports, legislative results, and political races. Specifically, the complaint included four counts related to election betting on the 2028 U.S. presidential race and the 2026 Arizona gubernatorial, gubernatorial primary, and Secretary of State races. Attorney General Mayes also noted that Kalshi had filed a preemptive lawsuit against the state on March 12, 2026, an action she described as an attempt to "avoid accountability." ^[14]

Connecticut

Connecticut also took action against the company. On April 2, 2026, the Connecticut Department of Consumer Protection (DCP) issued a cease-and-desist order to Kalshi for offering unlicensed online gambling markets. The order alleged that Kalshi allowed residents to wager on events such as the 2028 U.S. Presidential Election and the S&P 500 without the required state licenses. Following the order, Kalshi suspended its operations in the state. ^[16]

Regulatory Developments and Policy Changes

In March 2026, a Kalshi affiliate, Kinetic Markets LLC, obtained a futures commission merchant (FCM) license from the National Futures Association. This license allows the company to move toward offering margin trading for institutional and professional clients, a feature intended to attract more sophisticated investors by increasing capital efficiency. The feature requires final rule changes to be approved by the CFTC before it can be implemented. ^{[11] [12]}​

Amidst growing scrutiny of sports-related contracts, Kalshi implemented an internal policy to prohibit athletes, referees, and other individuals with direct influence over event outcomes from trading in related markets. This came as organizations like the NCAA pushed to ban betting on college sports via prediction markets and as a bipartisan bill was introduced in the U.S. Senate to prohibit sports-related event contracts on federally regulated exchanges. ^[12]​

Team and Key Figures

• Tarek Mansour: As CEO of Kalshi, Mansour has represented the company in regulatory discussions, including participating in an SEC-CFTC roundtable on new financial frontiers. He has emphasized a strategy of hiring based on "high quality thinking, dreaming big, and working mercilessly hard." ^{[2] [11]}
• John Wang: Appointed as Kalshi's first Head of Crypto in August 2025, Wang is a former crypto trader and influencer. Prior to joining Kalshi, he was a fellow at the venture firm Paradigm and co-founded the blockchain security company Armor Labs. At 23 years old, he was tasked with leading Kalshi's expansion into the crypto ecosystem, growing its builder community, and leading its on-chain initiatives. ^{[11] [10]}

Market Performance and Funding

Kalshi's market share in the prediction market sector grew substantially from 3.3% in 2024 to 66% by the end of September 2025, overtaking its competitor Polymarket. This growth was largely attributed to a surge in trading volume on its U.S. NFL-related event contracts and the regulatory clarity achieved from its legal victory. By early March 2026, the platform's weekly notional trading volume surpassed $3 billion, with monthly volume reaching $10.4 billion. ^{[2] [12] [12]}

The company's growth was supported by significant venture funding. After closing a $185 million Series C funding round in June 2025 led by the venture capital firm Paradigm, the company's valuation grew substantially. ^{[11] [10]} By March 2026, the company raised over $1 billion in a new financing round that brought its valuation to $22 billion. ^{[11] [12]}

The company's growth and strategic positioning attracted further investment, with a16z crypto announcing it was investing in the platform in October 2025. The firm highlighted Kalshi's compliant and scalable approach to event contracts and its plans for deep crypto integrations as key reasons for the investment. ^[9]

Partnerships

Kalshi has established partnerships to expand the reach of its markets. A notable collaboration is with the fintech platform Robinhood, which allows Robinhood users to trade on the outcomes of professional and college football games through Kalshi's markets. In September 2025, the company also announced partnerships with the Solana and Base blockchain foundations to foster a developer ecosystem around its platform. To support institutional adoption, Kalshi has also partnered with FIS for clearing infrastructure and with Tradeweb to distribute its market data to professional investors. ^[12] Additionally, a March 2026 court ruling in Nevada noted that Coinbase is partnered with Kalshi for its prediction market offerings. ^{[10] [10] [12]}