Polymarket

Open full sized image

One platform for participating in the prediction markets.

© Thomas Fuller/SOPA Images—LightRocket/Getty Images

Polymarket is a blockchain-based prediction market platform that allows users to speculate on the outcome of real-world events across popular culture, weather, sports, economics, politics, and other areas of interest. Founded in 2020 by Shayne Coplan, the company is based in New York City.

Polymarket operates on the Polygon network and denominates transactions in the stablecoin USDC—a design that not only differentiated the company from its peers, but also gave it a competitive advantage early on. After a 2022 settlement with the U.S. Commodity Futures Trading Commission (CFTC), Polymarket restricted access to U.S. users. In 2025 it acquired QCEX (via QCX LLC, d/b/a Polymarket US), giving it a U.S.-regulated infrastructure and paving the way for a U.S. market reentry.

What started as a COVID-19 pandemic–era experiment in crowdsourced forecasting has evolved into one of the world’s most active platforms for event-based speculation—one that has reportedly placed Coplan among the world’s youngest self-made billionaires.

Shayne Coplan created the Polymarket app in early 2020 under the name Union.market—later rebranded as Union Marketplace—while working from his apartment during quarantine. His initial aim was to counter what he saw as COVID-19 misinformation by pricing events and incentivizing forecasters, turning opinions into tradable claims.

The premise was simple. By requiring participants to quite literally “put their money where their mouth is,” Polymarket turned opinions into financially backed forecasts that reflected crowd-implied probabilities.

Polymarket entered a space already seeded by a couple of blockchain-based prediction-market efforts (such as Augur and Omen), alongside more traditional enterprises—from the betting-parlor-style exchange Betfair to the CFTC-regulated event-contract venue Kalshi.

Amid competitors differing in technology and regulatory posture, Polymarket’s Polygon and USDC combination allowed the company to offer lower-cost transactions, faster confirmation and settlement, and clear $1-denominated pricing, among other features that gave Polymarket a meaningful early edge.

Regardless of what Polymarket knew at launch, the domestic segment of its operations violated CFTC regulations. The agency issued an order against Polymarket alleging that it had been operating an unregistered binary options trading platform for “event market” contracts since 2020. Polymarket settled with the CFTC in 2022, paying a civil monetary penalty of $1.4 million, and restricting U.S. access to its markets and services.

Subsequent to the CFTC order, Polymarket worked toward regulatory compliance with a goal of reentering the U.S. market. A key step in building its regulatory credibility was to recruit former CFTC chair J. Christopher Giancarlo to lead its advisory board.

In June 2023, interest in Polymarket surged when social media posts about its speculative betting markets for the missing Titan submersible went viral. The controversy surrounding these markets drew attention not only to the ethics of profiteering from a tragic event, but also to the wording of the question: “Will the missing submarine be found by June 23?”

The dispute centered on the specific definition of what constituted a missing submarine. After “Yes” traders were paid out, some “No” traders objected, calling into question whether debris from the submersible could count as a missing submarine, which, by ordinary description, implies an identifiable and intact vessel.

The dispute was settled by Universal Market Access (UMA), a blockchain project that verifies outcomes for Polymarket contracts, through a public vote of its token holders—loosely comparable to a corporate shareholder vote. The episode highlighted Polymarket’s transparent, decentralized, on-chain dispute process, in contrast to off-chain, centralized processes at traditional, regulated markets.

Open full sized image

Polymarket founder and CEO Shayne Coplan speaks during the New York Times annual DealBook summit at Jazz at Lincoln Center on December 4, 2024 in New York City. 

© Eugene Gologursky—New York Times/Getty Images

In the spring of 2024, Polymarket secured approximately $70 million across two funding rounds, backed by Peter Thiel’s Founders Fund, Ethereum cofounder Vitalik Buterin, and venture capital firm General Catalyst, among others. Later that summer, statistician and FiveThirtyEight founder Nate Silver joined Polymarket as an adviser. In quick succession, these milestones capitalized Polymarket’s operations, strengthened its investor base, and expanded its news forecasting brand ahead of the U.S. election cycle.

By Election Day in November, trading in Polymarket’s U.S. presidential markets topped $3 billion, with some later estimates placing totals near $3.6 billion. Notably, a single bettor—popularly dubbed the “Trump whale”—was identified in late October as a French trader who wagered about $30 million on Donald Trump.

No manipulation was found; even so, the episode served to underscore the order book’s sensitivity to oversize bets, and, perhaps more importantly, the platform’s transparency in disclosing them. As it turned out, the company’s market correctly predicted Trump’s victory over Kamala Harris, an outcome that was accurate yet controversial.

On November 13, 2024, just days after the election, federal agents raided Coplan’s Manhattan apartment, seizing his phone and other electronics—part of an inquiry into whether Polymarket allowed U.S. users to bet on the election despite the 2022 CFTC order. Coplan was neither arrested nor charged, and by July 2025, both the Department of Justice and the CFTC had closed their investigations.

While the probe underscored the heightened sense of regulatory scrutiny surrounding Polymarket’s operations, it also confirmed the company’s liquidity leadership in the prediction markets. Yet that same leadership brought a persistent debate into focus: Are prediction markets a form of gambling or a class of financial derivatives?

From late 2024 to early 2025, regulators in Australia, Belgium, France, Poland, Switzerland, and Singapore ordered platform or Internet service-level restrictions, citing enforcement of national gambling laws against unlicensed wagering.

The actions underscored how differently regulators view prediction markets around the world—and how quickly national restrictions can drain liquidity or cut off users. In response, Polymarket began moving toward country-by-country compliance.

In July 2025, Polymarket acquired QCEX, a CFTC-regulated derivatives exchange and clearinghouse. A major step for Polymarket, which was already among the largest prediction market platforms in the world, the acquisition provided the company with a regulated venue in which to operate in the U.S. A September 2025 CFTC no-action relief letter—essentially a written assurance that the agency would not pursue enforcement if Polymarket met certain conditions—gave Polymarket the green light to launch U.S. operations.

A year after its election-year stress test and regulatory turnaround, Polymarket secured a $2 billion funding commitment from NYSE parent Intercontinental Exchange (ICE). The investment was seen as a win-win: Polymarket aimed to bring event-based trading—often associated with gambling—into the financial mainstream, while ICE sought to connect its traditional products with Polymarket’s decentralized finance (DeFi) offerings, asset tokenization initiatives, and event-driven data. As a distributor of Polymarket’s products, ICE would transform a popular event-betting pastime into a mainstream financial product.

It’s also notable that ICE’s investment, which valued Polymarket pre-money at $8 billion, signaled a strong vote of confidence, lifting the company’s reputational capital alongside its financing.

While Polymarket pulled ahead of many of its prediction market competitors, its duel with Kalshi—the other major prediction-market exchange—narrowed to a slight lead. Kalshi, also CFTC-regulated, was granted its designated contract market (DCM) status in 2020, giving it a five-year head start. In October 2025, Kalshi announced a capital raise of $300 million, led by Sequoia Capital, and a valuation of $5 billion.

The rivalry became a two-horse race, with Polymarket leading in politics and crypto-based infrastructure, and Kalshi maintaining a shrinking lead in U.S. market breadth. By late 2025, Kalshi was also moving toward digital assets.

What began as a pandemic-era attempt to build a trusted information source has evolved into one of the world’s largest prediction market platforms. Whether prediction markets continue to be viewed as a form of gambling or earn recognition as a financial derivative remains an open question. Polymarket’s rise—and its growing acceptance among regulators and major financial institutions—suggests a middle ground taking shape between speculation and finance.