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Prediction Markets Face Legal Threats On Several Fronts
Prediction markets Kalshi and Polymarket are facing an unprecedented legal onslaught, with Baltimore leading a new wave of lawsuits alleging illegal gambling operations and consumer protection violations.

TL;DR
The legal battles for prediction market platforms Kalshi and Polymarket are escalating dramatically, as the city of Baltimore, alongside multiple states, files lawsuits accusing them of operating unlicensed sportsbooks. This comes amidst ongoing clashes with state regulators, counter-actions by the CFTC, and increasing scrutiny over alleged insider trading incidents.
The high-stakes world of prediction markets, often touted as innovative financial instruments, finds itself under siege on multiple fronts, with the legal landscape shifting dramatically. This week marked a significant escalation, as the city of Baltimore threw its hat into the ring, filing a pair of lawsuits against industry giants Kalshi and Polymarket. This move signals a new chapter in the ongoing regulatory saga, as municipal authorities join state and federal bodies in scrutinizing these platforms.
Baltimore city officials are not pulling any punches, directly accusing Kalshi and Polymarket of enabling unlawful gambling among its residents through sports event contracts, a clear violation of Maryland law. Furthermore, the lawsuits allege that these companies are in breach of the city's Consumer Protection Ordinance. Mayor Brandon Scott minced no words, stating to _WTTG_, "These companies are running sportsbooks without licenses and betting that a new label will put them above the law. It won’t. Baltimore will not let multibillion-dollar companies put profits over people and harm our communities through illegal gambling."
This isn't an isolated incident; many state regulators have previously launched similar legal challenges, arguing that these platforms artfully sidestep state gaming laws by offering contracts on sports outcomes. In some instances, gaming bodies have initiated lawsuits to halt platform operations, while Kalshi itself has resorted to legal action to prevent states from enforcing gaming statutes against it. Maryland has already seen its share of this legal dance, with Kalshi having temporarily lost a lawsuit against the Maryland Lottery and Gaming Control Commission in August.
Baltimore's legal arguments echo those made by the state of Maryland, asserting that Kalshi and Polymarket are essentially operating sports betting services without the requisite licensing. This alleged circumvention, the city claims, allows the companies to evade crucial oversight, taxation, responsible gambling requirements, and vital consumer protections. Both the city and state lawsuits highlight that the platforms feature many of the same wagering types found at traditional sportsbooks, including moneyline-style bets, point spreads, totals, tournament outcomes, and player props.
Adding another layer to their claims, the suits contend that these platforms deceptively market themselves as legitimate, regulated exchanges, thereby exposing minors and problem gamblers to unlicensed operations. City Solicitor Ebony M. Thompson reinforced this stance, declaring, "Kalshi and Polymarket cannot circumvent Baltimore’s consumer protections by repackaging gambling as something else or claiming federal regulation puts them beyond the reach of our laws. The city will continue to use its consumer protection authority to stop deceptive and unlawful conduct and hold companies accountable when they put our residents at risk."
Prediction markets, in their defense, maintain that their offerings diverge significantly from traditional sports betting, asserting that they are solely regulated at the federal level by the Commodity Futures Trading Commission (CFTC). They contend that their platforms are structured more like conventional financial exchanges than sportsbooks. The CFTC has indeed been active in asserting its regulatory authority, taking legal action against New York in April, and subsequently against Arizona, Connecticut, and Illinois in the same month. In June, the CFTC also sued New Mexico, aiming to prevent the state from applying gambling laws to prediction markets.
The past week alone has seen a flurry of additional legal setbacks. A Utah judge ruled against Kalshi, affirming that the state's stringent anti-gambling laws are applicable to prediction markets. Concurrently, a Washington state court issued an order mandating Kalshi to block event contracts related to sports, elections, politics, entertainment, culture, technology, and science, among other markets, via geofencing by September 2nd. The platform faces a hefty fine of $120,000 per day for non-compliance beyond this deadline, alongside a prohibition on marketing within the state. Kalshi is widely expected to appeal this ruling.
Further complicating matters, New York also initiated a lawsuit against Kalshi this week, alleging illegal gambling. This action prompted a court filing from the CFTC, compelling Kalshi to continue its operations in the state and emphasizing the commission’s "supplemental authority" in the dispute. Amidst this complex legal tapestry, the White House continues to express support for the burgeoning prediction market industry. The Trump administration is slated to host prediction market executives next Wednesday at the White House, a day before the CFTC convenes a new Innovation Advisory Committee, which includes key figures from crypto, gambling, finance, and prediction market firms.
Beyond the regulatory tug-of-war, the industry grapples with serious concerns regarding potential insider trading. Past incidents have fueled these worries, including allegations that an indicted Israeli Air Force reservist and an accomplice used privileged information on Israeli and U.S. airstrikes on Iran to profit $128,000 on Polymarket. Earlier this year, suspicious wagering activity on the prospects of Iranian Supreme Leader Ayatollah Ali Khamenei remaining in power emerged, with bettors collectively staking seven figures on Kalshi and Polymarket just prior to Khamenei's death from airstrikes on his Tehran compound. These incidents follow earlier allegations of insider trading on Polymarket concerning the capture and arrest of former Venezuelan leader Nicolás Maduro. In December, a user reportedly won 22 out of 23 bets in a single day, netting over $1 million, all tied to Google search markets, leading to social media speculation of insider access. In March, the Trump administration preemptively warned White House staff against leveraging their federal roles for bets on futures markets, underscoring the pervasive nature of these ethical quandaries. The future of prediction markets, once seen as a novel frontier, now hinges precariously on a rapidly evolving and increasingly hostile legal and ethical battleground.


