Combined monthly trading volume on prediction markets rose from under $5 billion in September 2025 to approximately $24 billion in April 2026, according to Pew Research Center analysis. The sector now exceeds the $14 billion per month wagered through legal U.S. sportsbooks in 2025. In a single we...
"We plan to offer clients access to these binary options contracts in the coming months, building on our existing platform and demand from active traders." — James Kostulias, Head of Trading Services, Charles Schwab
Combined monthly trading volume on prediction markets rose from under $5 billion in September 2025 to approximately $24 billion in April 2026, according to Pew Research Center analysis. The sector now exceeds the $14 billion per month wagered through legal U.S. sportsbooks in 2025. In a single week ending June 23, 2026, three separate forces moved to claim or defend territory in this market: Meta disclosed development of a standalone prediction market app codenamed Arena; Cboe Global Markets launched binary options on the S&P 500 with Charles Schwab as a distribution partner; and the CFTC filed suit against Kentucky, its ninth state lawsuit, to defend exclusive federal jurisdiction over event contracts.
The convergence is not coincidental. Prediction markets generated $2 billion in annualized revenue for Kalshi alone by mid-2026, tripling from $735 million six months earlier. That revenue figure, combined with Kalshi's $22 billion valuation after a $1 billion Series F in March 2026, has drawn incumbents into direct competition. The question is no longer whether prediction markets constitute a viable asset class, but who regulates them, who distributes them, and who captures the economics.
Monthly prediction market volume hovered around $1.2 billion through most of 2025, according to TRM Labs. The November 2024 U.S. election cycle provided the first major proof of concept, with Polymarket processing 28% of its all-time cumulative volume in a single month. From that inflection point, growth accelerated sharply: monthly volumes exceeded $20 billion by January 2026 and peaked near $25.7 billion in March 2026, per TRM Labs data.
Unique active wallets tripled to 840,000 in the six months leading to February 2026. More than 800,000 unique wallets now participate monthly, though Polymarket's active trader count fell 9.4% month-over-month in June even as its volume rose to $1.16 billion. The divergence points to a maturing user base: average notional traded per Polymarket account rose from $2,700 in January to $4,800 in June, indicating consolidation toward a power-user cohort.
Total 2025 industry volume exceeded $63 billion. Annualized 2026 run-rate, based on first-half data, exceeds $250 billion. For context, Pew Research Center found that combined Kalshi and Polymarket volume now surpasses the total amount wagered through legal U.S. sportsbooks, which averaged approximately $14 billion per month in 2025.
Sports, politics, and cryptocurrency account for 90-91% of global trading volume across both major platforms since July 2024, per Pew. Sports alone represents 80% of Kalshi's volume and 39% of Polymarket's. This composition matters because it determines which regulator — the CFTC, SEC, or state gaming commissions — claims oversight authority.
On June 23, 2026, The New York Times reported that Mark Zuckerberg directed development of Arena, a standalone prediction market app. According to reporting by CoinDesk, TechCrunch, and CNBC, the app would allow users to forecast outcomes in politics, sports, entertainment, and world affairs using a points-based system rather than cash wagers.
Meta has not ruled out eventually allowing real-money betting. The strategic logic is straightforward: Meta's combined daily active user base across Facebook, Instagram, WhatsApp, and Messenger exceeds 3.56 billion. Even marginal conversion to prediction market participation would dwarf current platforms. For reference, Polymarket's entire active trader base is approximately 242,000.
Arena is not Meta's first attempt. The company launched Forecast in 2020 during the early stages of the COVID-19 pandemic, encouraging users to make predictions about current events. It shut down Forecast in 2022. The relaunch reflects the sector's changed economics: when Forecast existed, prediction markets were sub-$1 billion; they are now a $24 billion monthly market.
The stock market reaction was immediate. According to CNBC, shares of companies with prediction market exposure fell on the announcement, reflecting the distribution threat Meta poses. A points-based model could also circumvent the regulatory questions that plague cash-based platforms, though it would limit Meta's ability to capture transaction-based revenue.
On June 23, 2026, Cboe Global Markets launched Cboe Predicts, a suite of binary options linked to the Mini-S&P 500 Index (XSP). The first contracts, listed under symbols XSPBW and XSPBX, went live on Interactive Brokers, with Charles Schwab planning to offer access to its retail clients within the coming months.
Cboe first listed binary options on the S&P 500 and the Cboe Volatility Index in 2008. Those products failed to generate interest and were pulled, with the last contracts expiring in 2017. The relaunch — nine years later — is explicitly framed as a response to crypto-native prediction market growth.
The product structure introduces a variation on the standard binary format. Under Cboe's model, contracts can deliver three potential outcomes: no payout, a partial payout within a defined range, or a full $100 payout. This vertical-spread-based mechanism delivers partial payouts as the underlying index moves, rather than the all-or-nothing structure used by Kalshi and Polymarket.
Critically, Cboe's contracts settle through the Options Clearing Corporation under SEC oversight. This bypasses both the CFTC event-contract jurisdiction and state gambling laws. For institutional and retail brokerages, this is the path of least regulatory resistance.
Nasdaq filed separately with the SEC in March 2026 to list binary options tied to the Nasdaq-100, with contracts priced between 1 cent and $1. That application remains pending. If approved, two of the three largest U.S. options exchanges would offer prediction-style products under SEC jurisdiction, creating a parallel market structure to the CFTC-regulated platforms.
Kalshi raised $1 billion in a Series F round in March 2026 at a $22 billion valuation, led by Coatue, with participation from Sequoia Capital, Andreessen Horowitz, Paradigm, Morgan Stanley, and ARK Invest. The valuation doubled from $11 billion five months earlier.
Annualized revenue crossed $2 billion by June 2026, up from approximately $735 million in December 2025 and $25 million in December 2024. Monthly spot volume grew from $226 million in December 2024 to $17.9 billion by May 2026. Annualized trading volume tripled from $52 billion to $178 billion over six months. Institutional trading volume increased 800% in the same period.
Kalshi posted $5.42 billion in taker volume in April 2026, surpassing Polymarket's $1.99 billion for the first time. The platform now commands over 90% of U.S. prediction market activity, per company reporting. Kalshi is in preliminary discussions with investment banks about an IPO, though no S-1 has been filed and a public listing would not occur before late 2027 at the earliest, according to multiple reports.
The sector exhibits high concentration. Kalshi and Polymarket control an estimated 85-95% of total prediction market industry volume. The remaining share is split among smaller platforms including Drift, Hedgehog, and various decentralized alternatives.
Polymarket's cumulative all-time volume reached approximately $9.4 billion through May 2026 across roughly 14,200 markets, settled on Polygon PoS with USDC as the trading currency. The platform created a record 7,990 new markets in June, a 21.4% month-over-month increase. However, its active trader count of 242,000 continues to decline even as volume rises — the power-user dynamic is intensifying.
Polymarket's international operations dwarf its U.S. business. In April 2026, Polymarket US saw $1.3 billion in trading volume versus $9 billion on Polymarket International. The geographic split reflects the regulatory constraints that pushed Polymarket offshore after its 2022 CFTC settlement and subsequent no-action letter for U.S. re-entry.
The fee structures differ materially. Kalshi charges transaction fees on each trade. Polymarket operates fee-free for market makers and charges takers, with revenue generated primarily through liquidity provider arrangements. Cboe's binary options will carry standard options exchange fees plus brokerage commissions. Meta's points-based model, if it launches without real-money wagering, would presumably monetize through advertising — a fundamentally different economic model.
The CFTC filed suit against Kentucky on June 23, 2026, making it the ninth state the agency has sued to defend its claimed exclusive authority over prediction market event contracts. Kentucky is the first state with a Republican attorney general to face such action.
The dispute centers on classification. States argue prediction markets — particularly those offering sports-related event contracts — constitute gambling and fall under state gaming commission jurisdiction. Kentucky imposed a 14.25% excise tax on contracts traded in the state or by state residents. The CFTC's position is that event contracts are swaps governed by the Commodity Exchange Act, which preempts state regulation of designated contract markets.
The legal framework is fragmented across three federal regulators:
The regulatory uncertainty has real economic consequences. More than a dozen U.S. states have filed lawsuits alleging Kalshi and Polymarket operate unlicensed sports betting platforms. Gaming industry groups are lobbying Congress to restrict prediction markets. Meanwhile, the CFTC under its current chairman withdrew proposed rules that would have restricted prediction markets, signaling a more permissive federal stance.
The result is a jurisdictional arbitrage opportunity: platforms can choose their regulator by choosing their product structure. Index-linked binary options go through the SEC. Event contracts go through the CFTC. Points-based prediction games may avoid both.
TRM Labs analysts identified several behaviors in on-chain prediction market data that resemble market manipulation as defined in traditional finance:
Mid-frequency traders (11-1,000 fills) and high-frequency market makers together account for roughly 80% of prediction market volume, according to TRM Labs. Casual and first-time participants remain a modest share of actual trading activity, despite representing a larger share of unique addresses.
These dynamics raise questions about whether prediction markets are functioning as information-aggregation mechanisms — their theoretical purpose — or as speculative trading venues with the same manipulation risks as traditional derivatives markets. The distinction matters for regulatory treatment: information markets have historically received more favorable regulatory consideration than gambling or speculative derivatives.
Prediction markets are undergoing a structural transition from crypto-native niche to contested multi-regulator financial product category. The simultaneous entry of Meta (consumer distribution), Cboe (institutional infrastructure), and Nasdaq (pending SEC application), combined with the CFTC's aggressive defense of federal jurisdiction against states, indicates the sector has crossed a materiality threshold.
The economic stakes are measurable: $2 billion in annualized revenue at Kalshi, a $22 billion private valuation, and $250 billion in annualized trading volume across the sector. These figures are drawing traditional finance incumbents into direct competition, not through acquisition of crypto-native platforms, but through parallel product launches under different regulatory frameworks.
The unresolved question is regulatory consolidation. Three federal regulators (CFTC, SEC, FTC), fifty state gaming commissions, and Congress all have potential claims to jurisdiction. Until that question is settled — likely through legislation or a Supreme Court ruling on federal preemption — prediction markets will continue operating across a fragmented regulatory landscape. The platforms that survive will be those that either secure definitive regulatory clarity or structure their products to avoid contested jurisdictions entirely.