Prediction markets have become the fastest-growing financial product category in the United States. Kalshi and Polymarket — the two dominant platforms — are each exploring fundraising rounds at $20 billion valuations, doubling their marks from late 2025. Combined monthly trading volume hit $17.9 ...
"We will write new rules specifically addressing event contracts." — Michael Selig, Chairman, Commodity Futures Trading Commission
Prediction markets have become the fastest-growing financial product category in the United States. Kalshi and Polymarket — the two dominant platforms — are each exploring fundraising rounds at $20 billion valuations, doubling their marks from late 2025. Combined monthly trading volume hit $17.9 billion in February 2026, up from under $2 billion just six months earlier. Kalshi has crossed a $1 billion annualized revenue run rate and grown from 600,000 to 5.1 million monthly active users in twelve months.
But this is no longer a niche crypto story. DraftKings, FanDuel, Fanatics, and Robinhood have all launched competing prediction market products. The CFTC is drafting bespoke regulation. State attorneys general in at least eleven jurisdictions have issued cease-and-desist orders. And the core legal question — are event contracts federally regulated derivatives or state-regulated gambling? — remains unresolved in federal court.
What is clear: prediction markets have cracked open a new asset class that sits at the intersection of derivatives, sports betting, and information aggregation. The economic value at stake is enormous, and the regulatory architecture that emerges will determine who captures it.
On March 7, 2026, the Wall Street Journal reported that both Kalshi and Polymarket are in early-stage fundraising discussions at approximately $20 billion valuations. This represents a near-doubling from their previous rounds:
| Platform | Previous Valuation | Previous Round | Target Valuation | |---|---|---|---| | Kalshi | $11 billion | Dec 2025 ($1B raise, Sequoia-led) | ~$20 billion | | Polymarket | $9 billion | Oct 2025 (ICE invested up to $2B) | ~$20 billion |
The investor rosters are telling. Kalshi's December round was led by Sequoia and Alphabet's CapitalG, with Andreessen Horowitz and Paradigm participating. Polymarket's anchor investment came from Intercontinental Exchange — the parent company of the New York Stock Exchange. These are not speculative crypto bets. They are strategic infrastructure plays by firms that understand market microstructure.
The discussions remain preliminary. Neither platform has closed a round at the $20 billion mark, and market conditions — with Bitcoin below $68,000 and broad risk-off sentiment — could complicate execution. But the directional signal is unambiguous: the smartest capital allocators in financial services believe prediction markets are a generational opportunity.
The raw numbers tell a story of hypergrowth that outpaces nearly every financial product launch in recent memory.
Combined monthly volume (Kalshi + Polymarket):
On February 28, 2026, Polymarket recorded $425 million in single-day trading volume — surpassing its previous all-time high of $371 million set on Election Day 2024. The catalyst was not an election. It was geopolitical: U.S. and Israeli strikes on Iran sent traders flooding into geopolitical outcome markets.
Kalshi alone now processes more than $2 billion in weekly trading volume. Its fee revenue in 2025 reached $263.5 million, with 89% derived from sports-related event contracts. The platform's annualized revenue run rate has crossed $1 billion, placing it in the same revenue tier as mid-cap publicly traded exchanges.
The user growth trajectory is equally striking. Kalshi expanded from 600,000 to 5.1 million monthly active users over the course of 2025 — an 8.5x increase driven by sports product launches and distribution partnerships.
What began as a two-horse race between Kalshi and Polymarket has become a multi-front war involving some of the largest names in finance and entertainment.
DraftKings launched DraftKings Predictions in December 2025, directly targeting states where it does not hold sports betting licenses. The company is leveraging its existing 20+ million user base to cross-sell event contracts alongside daily fantasy and traditional sportsbook products.
FanDuel partnered with CME Group — the world's largest derivatives exchange — to launch FanDuel Predicts in January 2026. This partnership is architecturally significant: it pairs FanDuel's consumer brand with CME's regulatory and clearing infrastructure.
Robinhood integrated Kalshi-powered event contracts directly into its brokerage app, driving more than 50% of Kalshi's total trading volume since March 2025. The two companies split a 2-cent-per-contract fee, generating approximately $10 million in revenue for Robinhood in Q2 2025 alone. But Robinhood is also building its own exchange: in January 2026, its joint venture with Susquehanna closed the acquisition of MIAXdx, a CFTC-licensed designated contract market and derivatives clearing organization.
Betr, the Jake Paul-backed sports media company, announced a multi-year partnership with Polymarket on March 4, 2026, to offer prediction markets to its 1 million-plus user base across sports, politics, and culture.
The competitive dynamic has created real pressure on incumbent sportsbooks. Kalshi captured $720 million in NFL-related bets during the 2025-2026 season, and DraftKings' stock has declined as investors price in prediction market cannibalization. DraftKings CEO Jason Robins acknowledged the threat publicly, telling investors: "We have to prove it."
The prediction market boom has triggered the most complex jurisdictional battle in U.S. financial regulation since the Dodd-Frank Act.
Federal level: CFTC Chairman Michael Selig outlined a four-point plan in January 2026: (1) withdraw the 2024 proposed rule that would have prohibited politics- and sports-related event contracts; (2) begin drafting new bespoke rules for event contracts; (3) assess CFTC participation in ongoing litigation; and (4) develop joint interpretations with the SEC regarding Dodd-Frank Act definitions. The CFTC has also filed an amicus brief in the Ninth Circuit asserting exclusive federal jurisdiction over prediction markets as commodity derivatives.
State level: At least eleven states have issued cease-and-desist orders to prediction market platforms. Active litigation exists in at least eight states. The most consequential cases:
The core legal question is existential for the industry: if event contracts are federally regulated derivatives under CFTC jurisdiction, state gambling laws are preempted. If they are state-regulated gambling products, platforms must obtain licenses in each jurisdiction — the same costly, fragmented regime that governs DraftKings and FanDuel.
Meanwhile, SDNY U.S. Attorney Jay Clayton signaled in February 2026 that he expects fraud prosecutions related to prediction market trading, adding a criminal enforcement dimension to the regulatory picture.
Polymarket operates on Polygon, Ethereum's leading Layer-2 scaling solution, with all trades settled in USDC stablecoins. Every transaction is recorded on-chain, creating an immutable and fully auditable record of market activity. In 2025, Polymarket partnered with Chainlink, integrating Chainlink Data Streams for low-latency oracle reports and Chainlink Automation for on-chain market settlement.
This architecture provides three structural advantages:
Transparency: All order flow, settlement, and resolution data is publicly verifiable — a meaningful differentiator against centralized platforms where order routing and execution quality are opaque.
Composability: On-chain settlement allows prediction market positions to be integrated into DeFi protocols — used as collateral, bundled into structured products, or hedged with on-chain derivatives.
Global access: Unlike Kalshi, which operates as a U.S.-regulated exchange, Polymarket's crypto-native infrastructure enabled global participation before its U.S. re-entry in January 2026.
The crypto layer also creates a direct economic link to the broader Web3 ecosystem. Polymarket's growth drives USDC demand, Polygon network activity, and oracle fee revenue for Chainlink — redistributing value across the infrastructure stack in ways that centralized platforms cannot replicate.
From an economic value distribution perspective, prediction markets are creating new fee pools across multiple layers:
The question is whether $20 billion valuations are justified. Kalshi's $263.5 million in 2025 fee revenue implies a 76x revenue multiple at the target valuation. Even at a $1 billion annualized run rate, the multiple is 20x — rich but defensible if volume growth continues at current trajectory and the regulatory framework resolves favorably.
Prediction markets are no longer a curiosity or a crypto sideshow. They are a new financial primitive — a product category that collapses the boundary between derivatives trading, sports betting, and real-time information aggregation. The combined $40 billion in target valuations for Kalshi and Polymarket alone exceeds the market capitalization of most U.S. regional exchanges.
But the path forward is anything but settled. The federal-versus-state jurisdictional battle will define the market's structure for a decade. If the CFTC prevails and event contracts are treated as federally regulated derivatives, prediction markets will operate under a single national framework with relatively low barriers to entry — favoring crypto-native platforms like Polymarket that can leverage on-chain infrastructure for global reach. If states successfully assert gambling jurisdiction, the market will fragment along the same costly, state-by-state licensing model that governs traditional sportsbooks — favoring incumbents like DraftKings and FanDuel that already hold licenses in 20+ states.
Either way, the economic value being created is real. Over $200 billion in annualized trading volume. Billion-dollar revenue run rates. Five million monthly active users and growing. The prediction market boom is the most consequential new product launch in financial services since the ETF.