Prediction markets processed over $44.8 billion in notional volume during June 2026, a 70% increase from May, driven largely by the 2026 FIFA World Cup. Polymarket, the largest crypto-native prediction platform, filed for Futures Commission Merchant (FCM) registration on July 3 through affiliate ...
"This proposal gives the Commission a durable, transparent framework to identify the contracts Congress directed us to scrutinize while letting legitimate markets move forward." — Michael S. Selig, Chairman, Commodity Futures Trading Commission
Prediction markets processed over $44.8 billion in notional volume during June 2026, a 70% increase from May, driven largely by the 2026 FIFA World Cup. Polymarket, the largest crypto-native prediction platform, filed for Futures Commission Merchant (FCM) registration on July 3 through affiliate Coming Home GBA LLC — a move that would allow it to offer margin trading to U.S. customers. The filing comes six weeks after Polymarket's annualized revenue crossed $1 billion and while the platform remains under an active CFTC marketing investigation.
The prediction market sector has consolidated into a three-platform oligopoly. Kalshi commands 58% of industry flow, Polymarket holds 28%, and Robinhood-backed Rothera captured 7% in its first month of operation. Combined open interest exceeds $1.8 billion. Total 2026 volume is on pace to reach $240 billion, surpassing the $165.6 billion processed by the entire U.S. legal sports betting industry in 2025.
The U.S. prediction market industry has organized itself into three tiers in H1 2026. Kalshi, a CFTC-registered Designated Contract Market since 2020, controls the largest share of flow at 58% of industry volume. The platform held $630.7 million of the $1.11 billion total open interest as of May 1, 2026, according to data from The Block. In June, Kalshi processed more than $31 billion in notional volume.
Polymarket, operating on Polygon's blockchain infrastructure, held 28% of flow and $449.9 million in open interest at the same date. The platform's monthly volume peaked at $25.7 billion in March 2026 across 1.29 million active wallets. Sports led Q1 volume at $10.1 billion. Political markets remain Polymarket's stronghold: the platform captured 97% of Q2 political market volume, processing $5.5 billion of the segment's $5.7 billion total.
Rothera, the joint venture between Robinhood and Susquehanna International Group, entered the market in June 2026. The entity acquired a 90% controlling stake in MIAXdx — a CFTC-regulated exchange — in January 2026 and rebranded it as the Rothera Exchange, with its clearinghouse renamed Rothera Clearing. In its first month, Rothera processed $2 billion in notional volume, immediately capturing 7% of U.S. prediction market activity.
Combined monthly global trading volume on prediction platforms rose from less than $5 billion in September 2025 to approximately $24 billion in April 2026, according to Pew Research Center data. Total contracts listed grew from roughly 220 in 2021 to more than 8,000 by May 2026.
On July 3, 2026, PM Derivatives LLC filed with the National Futures Association (NFA) to register Coming Home GBA LLC — a Polymarket affiliate — as a Futures Commission Merchant, NFA member, and swap firm, according to Bloomberg. The registration, if approved, would permit Polymarket to extend credit to U.S. customers for leveraged positions on event contracts.
The application represents a structural shift. Under current rules, all positions on Polymarket's U.S. exchange must be fully collateralized. FCM registration would allow the platform to accept partially collateralized bets, reducing capital requirements for traders and potentially increasing volume per user.
Approval requires two separate regulatory steps: NFA must approve the FCM registration, and the CFTC must separately authorize changes to Polymarket's rulebook to permit uncollateralized positions. Neither approval has been granted. The timeline remains uncertain.
Polymarket is chasing Kalshi, which secured its own FCM license earlier in 2026 and has already established a regulated brokerage framework permitting margin trading. Kalshi's first-mover advantage in regulated margin trading is one factor behind its 58% market share.
Polymarket's expansion occurs against a complex regulatory backdrop. On June 26, 2026, CNBC reported that the CFTC is conducting an active investigation into Polymarket's marketing practices. The probe is not yet an enforcement action but marks the first high-profile inquiry into a prediction market platform under Chairman Michael Selig's leadership.
The investigation centers on allegations that Polymarket used deceptive promotional tactics for its offshore platform. According to reports, the company paid college-age content creators to produce more than 1,100 videos featuring fabricated bets totaling approximately $1.9 million, with creators staging wins worth nearly $900,000 without disclosing their financial relationship with the platform.
The probe was catalyzed by a June 25 letter from Sens. John Curtis (R-Utah) and Adam Schiff (D-Calif.) urging the CFTC to investigate the allegations. This bipartisan congressional attention elevates the regulatory risk.
Polymarket's regulatory history adds context. In 2022, the company was prohibited from operating in the U.S. for failing to register with regulators. The CFTC and Department of Justice dropped their investigations without charges in July 2025, clearing the path for Polymarket's U.S. exchange launch in December 2025.
The platform is now simultaneously applying for the highest tier of U.S. derivatives intermediary registration while operating under a separate CFTC investigation — an unusual regulatory position that creates uncertainty for the FCM application timeline.
On June 10, 2026, the CFTC published a Notice of Proposed Rulemaking (RIN 3038-AF65) titled "Prediction Markets; Public Interest Determinations." The proposal amends 17 C.F.R., Part 40 (Rule 40.11) and establishes a three-step analytical framework for evaluating event contracts.
The framework requires sequential analysis of: (1) whether a contract is an event contract in an excluded commodity; (2) whether it "involves" an enumerated activity — terrorism, assassination, war, gaming, or unlawful activity; and (3) whether the contract is contrary to the public interest.
Under the proposed rules, most sports event contracts would be deemed permissible on the grounds that they contribute to price discovery. However, the CFTC plans to prohibit contracts deemed vulnerable to manipulation, including bets on individual player injuries, referee decisions, or specific in-game events.
The public comment period closes July 27, 2026. The rulemaking provides the first comprehensive federal framework for evaluating which prediction market contracts can legally trade in the U.S. — a determination that directly impacts the product catalogs of Kalshi, Polymarket, and Rothera.
The 2026 FIFA World Cup, which kicked off June 11, has served as the largest stress test in prediction market history. Daily platform volume exceeded $1 billion consistently throughout the tournament period. June total industry volume reached $44.8 billion, according to data aggregated by Bitcoin Foundation News.
Kalshi captured 80% of prediction market volumes during June, while Polymarket's volume hit a record $10.8 billion for the month. The World Cup drove volume surges that pressure-tested platform infrastructure, liquidity depth, and settlement mechanics at scale.
According to Asaf Meir, CEO at market integrity firm Solidus Labs, "The World Cup is such a huge pressure test to see whether indeed prediction markets are able to deliver their word on maintaining a level playing field for all investors for a long period of time in a sustained high-volume environment."
The event also catalyzed Polymarket's U.S. revenue trajectory. Volume on the U.S. platform rose from approximately $50 million per day in mid-May — when the mobile app waitlist was lifted — to more than $200 million per day by June 20, according to CNBC. This trajectory contributed to the platform crossing $1 billion in annualized revenue six weeks after its U.S. exchange opened fully.
Rothera's entry signals a broader structural shift: traditional financial institutions are treating prediction markets as a viable asset class rather than a novelty. Robinhood and Susquehanna's acquisition of MIAXdx gave them a complete CFTC regulatory framework, including both Designated Contract Market (DCM) and Derivatives Clearing Organization (DCO) qualifications — infrastructure that took Kalshi years to build.
Deutsche Bank issued research in early June suggesting that prediction markets could provide a material revenue boost to Robinhood's business, according to CNBC. By routing prediction market products through Rothera, Robinhood can capture more economics per trade, control contract listings, and integrate the experience into its existing brokerage app — where it already serves millions of retail users.
The platform debuted with World Cup event contracts and a revised pricing model. Its $2 billion first-month volume, while modest relative to Kalshi and Polymarket, demonstrates that a traditional brokerage can enter this market at meaningful scale through acquisition rather than organic growth.
Polymarket's own valuation reflects the sector's institutional interest. Intercontinental Exchange (ICE) — the parent company of the New York Stock Exchange — invested up to $2 billion in Polymarket in October 2025 at an $8 billion valuation. By February 2026, the valuation had risen to $9 billion.
The prediction market sector's revenue model distributes economic value across several layers. Platform operators extract value through trading fees, typically ranging from 1-2% of notional volume. At Polymarket's $1 billion annualized revenue run rate against approximately $120 billion in projected annual volume, the implied fee capture rate is approximately 0.83%.
Liquidity providers and market makers extract value through bid-ask spreads. On-chain prediction markets like Polymarket additionally generate value for Polygon's validator network through transaction fees, though this represents a fraction of total economic activity.
The FCM registration layer adds an additional value extraction point. FCMs earn revenue through margin interest, clearing fees, and account maintenance charges. For the prediction market sector, the introduction of margin trading represents a structural increase in the economic value that can be distributed across market participants — at the cost of introducing leverage risk that does not currently exist in the fully-collateralized model.
The shift from fully-collateralized to margin-based trading also transfers risk. Under the current model, maximum loss per user is limited to the capital deposited. Margin trading introduces the possibility of losses exceeding deposits, requiring robust risk management infrastructure and regulatory oversight — precisely the function an FCM license is designed to authorize.
The prediction market sector has evolved from a crypto-native experiment into a regulated financial vertical processing tens of billions in monthly volume. The competitive dynamics now mirror traditional exchange markets: platforms compete on regulatory access, margin capabilities, product breadth, and distribution.
Polymarket's FCM application represents a direct challenge to Kalshi's structural advantage in margin trading. Approval would narrow the gap between the two largest platforms, but the active CFTC marketing probe introduces a variable that could delay or complicate the registration process.
The CFTC's proposed event contract framework, with its July 27 comment deadline, will define the product boundaries for the entire sector. Platforms that can offer the widest range of permissible contracts, combined with margin trading and institutional-grade infrastructure, will capture disproportionate share of a market that is on track to exceed $240 billion in annual volume.
The entry of Robinhood and Susquehanna through Rothera confirms that prediction markets have crossed the threshold from alternative finance into mainstream financial infrastructure. The remaining question is not whether the sector will grow, but how the regulatory framework will allocate market access among on-chain and traditional competitors.