Kalshi & Polymarket
48 shared events · Importance 8 · Last updated Aug 24, 2026
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Kalshi is a leading CFTC-regulated prediction market platform that directly competes with Polymarket, a crypto-native prediction market, and they have jointly pursued legal action against adverse regulations.
Regulatory
Kalshi: Kalshi is under investigation and also facing a lawsuit from New York's Attorney General; it argues its operations differ from gambling and is required to continue operating by the CFTC.
Polymarket: Polymarket is a primary target, facing allegations of deceptive marketing and potential insider trading; it is cooperating with the investigation while reorganizing its marketing team.
Aug 12, 2026 · 23 articles
Regulatory
Kalshi: Kalshi, a CFTC-registered exchange, was a plaintiff in the lawsuit and obtained the injunction allowing it to continue operating in United States — Minnesota. The ruling protects its business model and user base of over 90,000 United States — Minnesota users.
Polymarket: Polymarket, also a plaintiff, benefits from the injunction as it can continue operating in United States — Minnesota. The company argued the ban would disrupt its nationally uniform market and violate First Amendment rights.
Jul 27, 2026 · 20 articles
Business
Kalshi: Kalshi is the dominant U.S. prediction market competitor, valued at $22 billion, benefiting from the industry's growth and Polymarket's struggles.
Polymarket: Polymarket is the central entity; its reentry into the U.S. market aims to rebuild trust and capture market share, but faces challenges from deceptive marketing allegations and competition from Kalshi.
Jul 08, 2026 · 17 articles
Regulatory
Kalshi: Kalshi>>> is a prediction market platform directly targeted by United States — Minnesota>>>'s ban, which would criminalize its operations within the state. The company's business model is significantly impacted by the outcome of the federal lawsuit.
Polymarket: Polymarket>>> is a prediction market platform that would be criminalized under United States — Minnesota>>>'s new law, facing significant operational challenges if the ban is upheld. Its popularity in the 2024 US presidential election cycle highlights the stakes of this regulatory dispute.
May 19, 2026 · 26 articles
Regulatory
Kalshi: Kalshi prohibits wildfire contracts, citing perverse incentives, and is positioned as a responsible operator, potentially benefiting from regulatory crackdowns on competitors.
Polymarket: Polymarket is a major prediction market platform that hosted wildfire bets, drawing scrutiny. It defends its markets as providing information but faces potential regulatory restrictions.
Aug 03, 2026 · 6 articles
Regulatory
Kalshi: Kalshi is implementing new measures to collect employment information from customers in high-risk markets to combat insider trading, aiming to enhance its legitimacy and differentiate itself from competitors.
Polymarket: Polymarket is a competitor to Kalshi and has been associated with incidents of insider trading, which Kalshi is trying to avoid by implementing new integrity measures. Its operations are outside U.S. jurisdiction.
Jun 09, 2026 · 16 articles
Regulatory
Kalshi: Kalshi is a federally-regulated prediction market and a competitor to Polymarket. Its CEO, Tarek Mansour, supports stronger regulation against unregulated prediction markets, positioning Kalshi favorably amidst the scrutiny.
Polymarket: Polymarket is a major prediction market platform facing renewed scrutiny and potential regulatory challenges due to a suspicious trade related to Nicolas Maduro's capture, and its return to the U.S. market under new regulatory clearance is a key part of the event.
Jan 11, 2026 · 6 articles
Business
Kalshi: As a leading prediction market platform, Kalshi>>> is actively pushing to attract institutional investors and has seen significant growth in trading volumes from this client base. It is addressing liquidity concerns to further its expansion.
Polymarket: Polymarket>>> is a rival prediction market platform to Kalshi>>> that is also being considered by institutional investors, though it faces liquidity challenges.
May 27, 2026 · 6 articles
Regulatory
Kalshi: Kalshi is the primary defendant, facing potential shutdown in United States — New York, disgorgement of profits, and treble damages. The lawsuit threatens its business model and could set a precedent affecting its operations nationwide.
Polymarket: As a rival prediction market platform, Polymarket faces similar regulatory risks and could be affected by the outcome of this case, though it is not a direct party.
Jul 31, 2026 · 24 articles
Regulatory
Kalshi: Kalshi is the primary defendant, ordered to curtail most operations in Washington and face potential daily fines. This adds to its legal troubles in multiple states, though it continues to argue for federal preemption.
Polymarket: Polymarket, a major competitor, is mentioned as facing similar legal challenges in other states, indicating broader regulatory pressure on the prediction market industry.
Aug 13, 2026 · 8 articles
Business
Kalshi: Kalshi gains a major distribution channel and institutional credibility, addressing its liquidity challenges and expanding beyond retail trading, which is likely to increase trading volumes and market relevance.
Polymarket: Polymarket faces increased competitive pressure as a regulated alternative with institutional access emerges, potentially eroding its dominance among professional traders.
Aug 19, 2026 · 8 articles
Regulatory
Kalshi: Kalshi, an online prediction marketplace, detected suspicious trades by George Santos, froze his account, and reported the activity to federal authorities, leading to an investigation. This event highlights the scrutiny prediction markets face regarding insider trading.
Polymarket: Polymarket is mentioned as a rival prediction market to Kalshi, also facing scrutiny over insider trading. It has implemented new monitoring and enforcement measures in response to regulatory attention.
Jun 02, 2026 · 34 articles
Regulatory
Kalshi: Kalshi>>> received approval from the United States — United States Commodity Futures Trading Commission>>> to list its BTCPERP contract, becoming the first entity to offer a regulated bitcoin perpetual futures contract in the United States.
Polymarket: Polymarket>>> is a rival prediction market platform that also intends to offer perpetual futures, creating a competitive landscape with Kalshi>>> following the United States — United States Commodity Futures Trading Commission>>>'s approval.
May 29, 2026 · 18 articles
Regulatory
Kalshi: Reported Santos to regulators and is pursuing its own enforcement action; the settlement may reinforce its compliance reputation.
Polymarket: Cut ties with Santos in June following the federal probe, distancing itself from the controversy.
Jul 31, 2026 · 8 articles
Business
Kalshi: Kalshi, a prediction market startup, reached an $11 billion valuation after a $1 billion funding round, solidifying its position as a federally regulated platform for trading on future events.
Polymarket: Polymarket is a chief rival to Kalshi, also experiencing significant growth and reaching a $9 billion valuation.
Dec 03, 2025 · 8 articles
Regulatory
Kalshi: Kalshi was also temporarily blocked by Spain and sued by United States — Kentucky, reflecting broader regulatory scrutiny on prediction markets.
Polymarket: Polymarket faces a nationwide block in France, adding to a growing list of restrictions; the platform's annualized revenue exceeds $1 billion but regulatory pressure may hinder growth.
Jul 18, 2026 · 6 articles
Regulatory
Kalshi: Kalshi faces legal actions in multiple states alongside Polymarket, reflecting broader regulatory pressure on prediction markets.
Polymarket: Polymarket lost a major banking partner due to regulatory concerns, but continues operations with a new lender and retains a relationship with JPMorgan. It faces legal challenges and is raising funds at a high valuation.
Aug 14, 2026 · 8 articles
Regulatory
Kalshi: Kalshi is a competitor to Polymarket and is also facing legal challenges, including a lawsuit from The Baltimore Banner. The South Korean decision may indirectly affect the prediction market industry as a whole.
Polymarket: Polymarket is the primary target of the South Korean access block, which adds to a growing list of international restrictions. The company's defense based on its decentralized structure was rejected, and it faces legal challenges in multiple jurisdictions, potentially limiting its growth and increasing operational risks.
Aug 18, 2026 · 6 articles
Business
Kalshi: Kalshi faced a lawsuit from FlightAware but resolved it quickly by revising its market wording and likely settling privately. The company continues to face more significant legal challenges from multiple states over its sports event contracts.
Polymarket: Polymarket was also sued by United States — Kentucky over unlicensed sports betting, but is not directly involved in the FlightAware dispute.
Aug 12, 2026 · 6 articles
Regulatory
Kalshi: Kalshi is a leading CFTC-regulated prediction market operator that would face increased competition if Binance enters the space.
Polymarket: Polymarket is another prediction market platform that may compete with Binance's planned offerings.
Jul 29, 2026 · 6 articles
Regulatory
Kalshi: Kalshi is another prediction market operator facing regulatory scrutiny and legal challenges, similar to Polymarket, regarding jurisdiction and potential insider trading.
Polymarket: Polymarket is facing a federal investigation by the United States — United States Commodity Futures Trading Commission and a lawsuit from a consumer protection organization due to allegations of deceptive advertising and targeting college students with misleading promotions. This event significantly harms Polymarket's reputation and could lead to substantial regulatory penalties.
Jun 26, 2026 · 7 articles
Business
Kalshi: Kalshi is a major competitor in prediction markets, with significantly higher trading volumes than Gemini Titan.
Polymarket: Polymarket is another major competitor, also facing regulatory scrutiny in some states.
Aug 24, 2026 · 11 articles
Regulatory
Kalshi: Kalshi is another predictions market platform where Donald Trump acts as a strategic advisor, and which has outlined new rules to combat insider trading.
Polymarket: Polymarket is a blockchain-powered predictions market platform where suspicious trading activity, potentially insider trading, occurred before major geopolitical events. It has since outlined new rules to crack down on such activities.
Apr 19, 2026 · 6 articles
Tech
Kalshi: Kalshi, a regulated prediction market platform, may face competitive pressure from Hyperliquid's permissionless model.
Polymarket: Polymarket faces increased competition from Hyperliquid's integrated prediction markets, which leverage an existing user base and shared collateral.
Jul 20, 2026 · 6 articles
Regulatory
Kalshi: Kalshi is the central entity launching new prediction markets for drug trials and flight delays, aiming to increase its user base and trading volume.
Polymarket: Polymarket is a rival prediction market platform mentioned as having offered healthcare contracts in the past.
Jul 16, 2026 · 7 articles
Business
Kalshi: Kalshi has two representatives, Sudhir Jain and Rick Heaslip, speaking at the PREDICT 2026 conference, contributing expertise on compliance and regulatory affairs in prediction markets.
Polymarket: Neal Kumar, Chief legal officer of Polymarket, is a speaker at the PREDICT 2026 conference.
May 29, 2026 · 10 articles
Regulatory
Kalshi: Kalshi is a rival prediction market platform that has also faced bans and restrictions in countries like Brazil, indicating a broader regulatory scrutiny of the prediction market industry.
Polymarket: Polymarket is the central entity in this event, facing bans and restrictions in multiple countries due to its classification as an illegal online gambling service. This significantly impacts its global expansion plans and operational reach.
May 22, 2026 · 14 articles
Regulatory
Kalshi: Kalshi flagged the suspicious trades and referred them to the CFTC, demonstrating its surveillance capabilities. However, the incident may lead to increased regulatory scrutiny of its prediction markets.
Polymarket: Polymarket is a competitor to Kalshi mentioned in the context of prediction market growth, but it is not directly involved in this event.
Jul 16, 2026 · 103 articles
Business
Kalshi: Kalshi is mentioned as one of the industry leaders in prediction markets, alongside which RAIN token is now positioned due to its liquidity commitment.
Polymarket: Polymarket is mentioned as one of the industry leaders in prediction markets, alongside which RAIN token is now positioned due to its liquidity commitment.
May 26, 2026 · 9 articles
Business
Kalshi: Kalshi faces increased competition as Fanatics enters the regulated prediction market space with its own infrastructure.
Polymarket: Polymarket, a crypto-native prediction platform, faces competition from Fanatics' regulated offering, though it operates outside US jurisdiction for most contracts.
Jul 27, 2026 · 6 articles
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