Behind Polymarket’s $360 billion in trading volume, how are prediction markets becoming new financial infrastructure?

In the first quarter of 2026, on-chain prediction markets delivered a report card that rewrote industry understanding. According to a report released by blockchain intelligence firm TRM Labs, the quarterly prediction market trading volume reached $36.6 billion, surpassing for the first time the $14 billion from on-chain gambling in the same period. The significance of this leap goes far beyond the numbers themselves – it marks the maturity of prediction markets as an independent financial track, with capital scale now sufficient to compete with traditional on-chain entertainment formats.

Extending the timeline, the growth trajectory becomes clearer. In the full year 2025, on-chain gambling cumulative trading volume was approximately $51 billion, with the fourth quarter setting a quarterly record high of $15 billion. By the first quarter of 2026, prediction markets surpassed on-chain gambling's entire fourth-quarter performance in just three months. This growth differential reveals a deeper trend: capital is shifting from purely entertainment betting to prediction trading with information discovery functions.

Entering the second quarter, growth did not slow down. In May 2026, the entire industry's prediction market trading volume reached $28.4 billion, setting a new monthly record. Leading platform Polymarket recorded a monthly peak of $10.5 billion in March. More noteworthy is the weekly data – for the week ending June 15, 2026, prediction market trading volume reached $10.8 billion, breaking the single-week $10 billion threshold for the first time. A year earlier, typical weekly trading volume was only about $500 million.

From $500 million to $10.8 billion, prediction markets increased the weekly trading volume base by 20 times in just one year. This growth rate even surpassed the expansion pace under the early DeFi "liquidity mining" craze. When trading volume climbs at such a slope, the nature of the track itself is undergoing a fundamental change – it is no longer a crypto niche testing ground, but is growing into an emerging financial sector of systemic importance.

Why On-Chain Prediction Markets Can Surpass Traditional On-Chain Casinos

Prediction markets surpassing on-chain casinos, on the surface, is a shift in trading volume, but at the bottom, it is a divergence of two business logics. On-chain casinos are essentially collections of probability games – the expected return of each transaction is negative, and long-term participants are bound to lose. Their growth relies on continuous user traffic acquisition and retention, with highly homogeneous business models. The core value of prediction markets lies in information discovery: each transaction generates a price signal tempered by capital gaming for a future event. This signal itself has economic value and can serve a wider range of decision-making scenarios – from hedge fund risk management to corporate strategic planning.

From a user behavior perspective, the differences are equally significant. In the first quarter of 2026, Polymarket's active wallet count rose to 1.29 million, with March trading volume reaching $25.7 billion, 13.5 times that of the same period last year. But corresponding to the institutional "money printing machine" narrative is another set of noteworthy data: 70% to 84.1% of accounts are in a loss state, with 0.04% of wallets taking 70% of the platform's profits. This structure is highly similar to traditional financial markets – derivatives markets have always been the domain of professional institutions. Prediction markets are replicating the typical distribution pattern of financial markets, which precisely shows that they are evolving from "casinos" to "financial markets."

Another key variable is the diversification of event types. In 2024, the growth of prediction markets was almost solely driven by the U.S. presidential election. By 2026, the driving factors have expanded to multi-dimensional events such as the World Cup, SpaceX IPO, geopolitical conflicts, NBA Finals, and macroeconomic data. Polymarket's World Cup champion contract trading volume alone has already exceeded $3 billion. The diversification of event types means the market no longer relies on a single "catalyst" but has formed a self-sustaining growth flywheel.

What Signal Does the NYSE Parent Company ICE's $6 Billion Bet Send?

On March 27, 2026, the parent company of the New York Stock Exchange, Intercontinental Exchange (ICE), announced the completion of a $600 million direct cash investment in Polymarket. This was not ICE's first move – the partnership began in October 2025, when ICE announced a strategic investment in Polymarket, obtaining exclusive institutional capital market data distribution rights, with Polymarket valued at approximately $9 billion. ICE had previously committed an investment plan of up to $2 billion, with this $600 million being one specific implementation step. ICE also stated it might acquire up to $40 million worth of shares from existing investors.

Why would a giant that manages the world's most important stock exchange continuously increase its bets on a crypto prediction market platform? The answer lies in data. In February 2026, ICE and Polymarket jointly launched the "Polymarket Signals and Sentiment Tool," which structures Polymarket's crowd prediction data and provides standardized signals to institutional investors. This means Polymarket's prediction prices are being incorporated into the information framework of traditional financial decisions – just like economic data on Bloomberg terminals, becoming one of the reference dimensions for institutions to judge market expectations.

ICE's continued investment also reveals another trend: traditional financial infrastructure operators are regarding prediction markets as an important source of "alternative data." In an era of information overload, probability signals formed by real-money gaming are more valuable for reference than any opinion poll or expert prediction. When an institution like ICE is willing to invest billions of dollars in a prediction market platform, the nature of prediction markets themselves is being redefined – they are no longer a crypto-native speculative tool but are becoming part of financial information infrastructure.

Notably, Polymarket and Kalshi, the two major platforms, were reportedly in talks for a new round of financing at a valuation of about $20 billion in the first quarter of 2026. In less than half a year, the valuation leaped from $9 billion to $20 billion – this speed itself speaks volumes.

What Forces Are Driving the Exponential Growth of Prediction Markets

The explosion of prediction markets is not accidental but the result of multiple structural forces working together.

Sharp increase in macro event density is the primary driver. 2026 coincides with the U.S. midterm election cycle, plus multiple hot events such as the US-Canada-Mexico World Cup, Middle East geopolitical conflicts, and the SpaceX IPO. These events themselves are highly uncertain and naturally suitable for pricing by prediction markets. A Bernstein report estimates that the World Cup will bring up to $10 billion in consumer trading volume to sports betting and prediction markets. When a single event can contribute tens of billions in trading volume, the ceiling of the track has been significantly raised.

Breakthrough implementation of compliance frameworks is a prerequisite for institutional capital entry. At the end of 2025, Polymarket acquired the CFTC-regulated derivatives exchange QCX, gaining a compliant channel to re-enter the U.S. market. On June 10, 2026, the U.S. Commodity Futures Trading Commission (CFTC) released a 267-page proposed rule, planning significant adjustments to the review method for event contracts. The bipartisan digital asset legislation expected to pass in the fall of 2026 will further recognize on-chain prediction tools and stablecoin settlement. As the regulatory framework becomes clearer, the pace of institutional capital entry will only accelerate further.

The self-sustaining capability of the business model is also key. On March 30, 2026, Polymarket ended its long-standing zero-fee model and began charging taker fees on core categories such as cryptocurrency, sports, politics, and finance. Two days after the reform, the platform's daily revenue exceeded $1 million. The transition from "burning cash for expansion" to "self-sustaining" means the prediction market track has the commercial foundation for independent survival and continued expansion.

These three driving forces reinforce each other: more events attract more users, more users generate more accurate pricing signals, more accurate signals attract more institutional capital, and the influx of institutional capital in turn improves market depth and liquidity, thereby attracting more events to trade on the platform. This is a classic positive flywheel.

A Paradigm Shift from "Casino" to "Information Infrastructure" Is Occurring

Prediction markets have long been labeled as "crypto casinos" by the outside world. But based on the data from 2026, this label is outdated. The core feature of a "casino" is a zero-sum game – someone wins, someone loses, and the platform creates no additional value. The core feature of "information infrastructure" is value spillover – the pricing signals generated by the platform can be used by a wider range of economic activities. Prediction markets are in the midst of a paradigm shift from the former to the latter.

This shift is occurring simultaneously on multiple levels. At the product level, prediction market trading categories have expanded from elections and sports to macroeconomic indicators, corporate events, geopolitical risks, technological innovation, and more. At the user level, the proportion of institutional investors and high-frequency traders continues to rise, while the share of retail users declines relatively. At the valuation level, leading platforms are raising funds at a $20 billion valuation, a figure approaching the market cap of many traditional financial data service providers.

Investment bank Bernstein's forecasts further confirm this trend: prediction market trading volume will reach approximately $240 billion by 2026 and approximately $1 trillion by 2030. Calculated at an approximate 80% compound annual growth rate from 2025 to 2030, a trillion-dollar annual trading volume is not out of reach. When prediction markets reach the trillion-dollar level, they will no longer be a "track" but a "layer" – just like today's derivatives market, becoming an indispensable component of the modern financial system. At that time, prediction prices will be incorporated into the reference framework for macroeconomic analysis, corporate decision-making, and public policy formulation, just like futures prices today.

Risks and Structural Challenges Behind Rapid Growth

Any rapidly growing track comes with risks and challenges, and prediction markets are no exception.

Regulatory uncertainty is the most direct challenge. Although the CFTC has released proposed rules, the final implementation form and pace remain uncertain. At least 11 states are currently taking legal action against prediction market platforms. Nevada has issued a temporary injunction against Kalshi, while Arizona has brought criminal charges. The PREDICT Act proposed in the U.S. Congress aims to prohibit members of Congress and government officials from engaging in political-related transactions on prediction markets. Regulatory fragmentation may limit the market's expansion room.

Market concentration risk is also worth noting. Kalshi and Polymarket together accounted for nearly 90% of prediction market activity in May. This highly concentrated pattern means most of the track's risks are also concentrated on a few platforms – any compliance or operational issue on one platform could impact the entire industry.

Participant structure imbalance is another concern. As mentioned earlier, over 80% of accounts are in a loss state, and a handful of professional players take the vast majority of profits. While this structure is not uncommon in traditional financial markets, for a track whose narrative core is "decentralization" and "democratization," long-term sustainability is worth observing. If retail users continue to lose money and exit, market liquidity and depth may be affected.

Additionally, insider trading risk has also attracted regulatory attention. Polymarket recently updated its rules to more explicitly prohibit trading based on confidential information. But as the types of events covered by prediction markets become increasingly broad – from corporate mergers to geopolitics – how to effectively prevent insider trading will be a persistent challenge.

The Endgame of Prediction Markets: Financial Infrastructure or Super Casino

Looking back from the midpoint of 2026, prediction markets have passed the "0 to 1" verification phase and are entering the "1 to N" scaling expansion period. But a fundamental question remains unanswered: what exactly is the endgame of prediction markets? If prediction markets are merely a more efficient and transparent "super casino," then their value will be limited to entertainment and speculation, regulatory pressure will persist, and market size will face a ceiling. But if prediction markets can prove themselves to be a superior information discovery mechanism – able to predict the future more accurately than traditional opinion polls, expert forecasts, and market research – then they will attain the status of financial infrastructure, just like today's exchanges, index compilers, and credit rating agencies.

ICE's continued investment, the CFTC's regulatory framework advancement, and Bernstein's trillion-dollar market forecast all point to the latter possibility. But this path is not smooth – regulatory battles, user structure optimization, and continuous validation of the business model are all thresholds that must be crossed.

The $36.6 billion trading volume in Q1 2026, the $10.8 billion single-week record in June, and ICE's $6 billion heavy investment together paint a picture of an industry accelerating in evolution. Prediction markets are proving with real-money data that they are no longer a fringe experiment in the crypto world but are becoming a strong contender for modern financial information infrastructure.

Summary

2026 is a key year for prediction markets' transition from quantitative change to qualitative change. Q1 on-chain prediction market trading volume reached $36.6 billion, surpassing on-chain casinos for the first time; the single week in June set a record of $10.8 billion; NYSE parent ICE made a $6 billion heavy bet on Polymarket. These three signals together mark that prediction markets are evolving from "crypto casinos" to "financial infrastructure." The three driving forces of increased macro event density, breakthroughs in compliance frameworks, and self-sustaining business models have jointly propelled this process. But risks such as regulatory uncertainty, market concentration, and participant structure imbalance still require vigilance. Whether the endgame of prediction markets is financial infrastructure or a super casino depends on whether it can continuously prove its unique value in information discovery.

FAQ

Q1: What was the specific trading volume of prediction markets in Q1 2026?

According to TRM Labs, on-chain prediction market trading volume in Q1 2026 reached $36.6 billion, surpassing the $14 billion from on-chain gambling in the same period for the first time.

Q2: How was Polymarket's single-week trading volume of $10.8 billion in June achieved?

In the week ending June 15, 2026, driven by multiple events such as the SpaceX IPO (valued at $2.1 trillion), the US-Iran peace agreement, the NBA Finals, the Stanley Cup Finals, and the World Cup opening, prediction market weekly trading volume broke the $10 billion threshold for the first time.

Q3: What is the specific amount of ICE's investment in Polymarket?

On March 27, 2026, NYSE parent ICE announced the completion of a $600 million direct cash investment in Polymarket, part of its previously announced investment plan of up to $2 billion.

Q4: What is the expected long-term market size for prediction markets?

Bernstein predicts that prediction market trading volume will reach approximately $240 billion by 2026 and approximately $1 trillion by 2030, with a compound annual growth rate of about 80%.

Q5: What are the main risks of prediction markets?

Mainly include regulatory uncertainty (at least 11 states have taken legal action), high market concentration (two platforms account for nearly 90% share), participant structure imbalance (over 80% of accounts in loss), and insider trading risk.