The Rise of Prediction Markets
How Kalshi, Polymarket, and Robinhood Are Reshaping the Global Sports Betting Industry
Executive Intelligence Report • Market Structure • Regulation • Competitive Analysis
A prediction market is a CFTC-regulated financial exchange where participants trade contracts based on real-world outcomes. During the 2026 FIFA World Cup, these platforms achieved a major structural milestone, capturing an estimated 27% of U.S. sports-betting volume from legacy operators like DraftKings and FanDuel.
Last updated: July 21, 2026
Executive Summary
Prediction markets have rapidly evolved from niche financial products into a credible alternative to traditional sportsbooks. During the 2026 FIFA World Cup, they captured an estimated 27% of U.S. sports betting activity, highlighting a structural shift in how consumers speculate on sporting events.
Unlike traditional operators, these exchanges are regulated under federal financial market rules rather than state gaming laws, allowing them to reach broader audiences, operate nationwide, and compete with a fundamentally different economic model.
What Is a Prediction Market?
Understanding the Regulatory and Operational Shift
A prediction market is a regulated financial exchange where users trade binary contracts tied to the outcome of future events—ranging from political elections and macroeconomic indicators to sports matches. The price of each contract fluctuates dynamically based on supply and demand, serving as a real-time, crowd-sourced probability estimate of the underlying outcome.
In the United States, the leading prediction markets—most notably Kalshi, Polymarket, and the Robinhood-backed Rothera—operate under the regulatory oversight of the Commodity Futures Trading Commission (CFTC) as Designated Contract Markets (DCMs), rather than state-level gaming commissions.
This federal regulatory framework provides a significant operational advantage: it allows these platforms to offer sports-outcome contracts nationwide, including in highly populated states like California and Texas where traditional sports betting remains legally restricted.
At a Glance
Key Takeaways
Market Share Migration: Prediction markets captured 27% of U.S. legal sports-betting volume during the 2026 FIFA World Cup, up from approximately 9% in January 2026.
Kalshi's Institutional Dominance: Kalshi emerged as the volume leader in the U.S. domestic market, processing ~$31.5B in trading volume in June 2026 alone.
Record-Breaking Industry Liquidity: Polymarket recorded a historic $10.8B month in June 2026.
Exponential Valuation Trajectory: Kalshi’s valuation accelerated from $11B to $40B within months.
Legacy Operator Headwinds: DraftKings and Flutter Entertainment experienced significant competitive pressure during the World Cup.
Demographic Advantage: Federal regulation enables participation from users aged 18+, expanding the addressable market.
Prediction Markets vs. Traditional Sportsbooks
Structural Comparison
2026 Market Performance
Trading Volume, Liquidity & Market Share
Methodology: The reported market-share figures compare prediction-market trading volume with sportsbook betting handle. Although not perfectly equivalent metrics, they provide a strong directional indicator of market adoption.
Pricing Efficiency
Why Prediction Markets Are Winning on Margin
While marketing and accessibility accelerated adoption, pricing efficiency remains the industry's strongest competitive advantage.
A comprehensive review by Citizens JMP Securities across 104 FIFA World Cup matches showed that exchange-based prediction markets consistently offered lower transaction costs than traditional sportsbooks.
Polymarket: 2.70%
Kalshi: 4.71%
DraftKings: 4.97%
FanDuel: 5.07%
Excluding Polymarket, Kalshi still offered better pricing than DraftKings in more than half of all directly comparable markets, reinforcing the structural efficiency of peer-to-peer order books.
User Growth & Market Expansion
Active Users and Demographic Shifts
During the 2026 FIFA World Cup, prediction markets demonstrated significantly stronger user retention than traditional sportsbook operators.
According to Apptopia, Kalshi continued gaining daily active users throughout the tournament, while DraftKings and FanDuel experienced declining engagement after their initial peaks.
Together, Kalshi and Polymarket accounted for approximately 50% of active users across the six largest wagering and trading applications, compared with only 6% one year earlier.
Expanding the Addressable Market
Kalshi also attracted a broader demographic profile. Female users increased by 106%, substantially outpacing male user growth and indicating that prediction markets appeal to audiences traditionally underrepresented in sports betting.
Kalshi's Hypergrowth
Valuation Timeline
Backed by leading venture capital firms and institutional investors, Kalshi has experienced one of the fastest valuation increases in the financial technology sector.
October 2025 — ~$5B
December 2025 — $11B
May 2026 — $22B
June 2026 — Targeting ~$40B valuation
As of April 2026, the company reported an annualized revenue run rate exceeding $2 billion.
Wall Street Impact
Pressure on Legacy Gaming Operators
Prediction markets are beginning to influence investor sentiment toward traditional gaming companies.
DraftKings and Flutter Entertainment both experienced notable share-price declines during the World Cup period, while investment analysts increasingly described exchange-based betting as a structural competitive threat rather than a temporary trend.
Although taxation and slowing sportsbook growth also contributed, prediction markets have clearly emerged as an important new competitive force.
Regulatory Landscape
The Polymarket Challenge
While Kalshi has focused on operating entirely within the U.S. federal regulatory framework, Polymarket continues navigating a far more complex international compliance environment.
France's gambling regulator ordered internet providers to block access to the platform during July 2026 following earlier enforcement actions. Similar restrictions now exist across numerous European jurisdictions as regulators evaluate whether event contracts should fall under existing financial-product rules governing binary options.
The contrasting regulatory strategies of Kalshi and Polymarket illustrate the two competing paths currently shaping the global prediction market industry.
Strategic Outlook
What Happens Next?
Prediction markets are no longer a niche financial experiment.
They now represent an alternative infrastructure for event trading, offering nationwide distribution, competitive pricing, greater liquidity, and broader accessibility than many legacy sportsbooks.
Whether traditional operators respond through acquisitions, partnerships, or by building exchange-based products internally will likely define the industry's competitive landscape over the next several years.
Frequently Asked Questions
What is a prediction market?
A prediction market is a financial exchange where participants trade contracts based on future real-world events. Prices reflect the market's collective estimate of the probability of each outcome.
Is Kalshi considered sports betting?
Legally, Kalshi operates as a federally regulated financial exchange under the CFTC rather than as a state-licensed sportsbook.
Which platform is larger?
Within the United States, Kalshi currently leads regulated trading volume, while Polymarket maintains a substantial international user base.
Why are sportsbooks losing market share?
Prediction markets combine lower pricing, nationwide availability, broader demographic access, and an exchange-based trading model that appeals to sophisticated users.
Editorial Standards
Previous industry claims regarding "three million new Kalshi users" and an "Official Prediction Market Partner" designation have been intentionally excluded due to insufficient primary-source verification.
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The Rise of Prediction Markets
How Kalshi, Polymarket, and Robinhood Are Reshaping the Global Sports Betting Industry
Executive Intelligence Report • Market Structure • Regulation • Competitive Analysis
A prediction market is a CFTC-regulated financial exchange where participants trade contracts based on real-world outcomes. During the 2026 FIFA World Cup, these platforms achieved a major structural milestone, capturing an estimated 27% of U.S. sports-betting volume from legacy operators like DraftKings and FanDuel.
Last updated: July 21, 2026
Executive Summary
Prediction markets have rapidly evolved from niche financial products into a credible alternative to traditional sportsbooks. During the 2026 FIFA World Cup, they captured an estimated 27% of U.S. sports betting activity, highlighting a structural shift in how consumers speculate on sporting events.
Unlike traditional operators, these exchanges are regulated under federal financial market rules rather than state gaming laws, allowing them to reach broader audiences, operate nationwide, and compete with a fundamentally different economic model.
What Is a Prediction Market?
Understanding the Regulatory and Operational Shift
A prediction market is a regulated financial exchange where users trade binary contracts tied to the outcome of future events—ranging from political elections and macroeconomic indicators to sports matches. The price of each contract fluctuates dynamically based on supply and demand, serving as a real-time, crowd-sourced probability estimate of the underlying outcome.
In the United States, the leading prediction markets—most notably Kalshi, Polymarket, and the Robinhood-backed Rothera—operate under the regulatory oversight of the Commodity Futures Trading Commission (CFTC) as Designated Contract Markets (DCMs), rather than state-level gaming commissions.
This federal regulatory framework provides a significant operational advantage: it allows these platforms to offer sports-outcome contracts nationwide, including in highly populated states like California and Texas where traditional sports betting remains legally restricted.
At a Glance
Key Takeaways
- Market Share Migration: Prediction markets captured 27% of U.S. legal sports-betting volume during the 2026 FIFA World Cup, up from approximately 9% in January 2026.
- Kalshi's Institutional Dominance: Kalshi emerged as the volume leader in the U.S. domestic market, processing ~$31.5B in trading volume in June 2026 alone.
- Record-Breaking Industry Liquidity: Polymarket recorded a historic $10.8B month in June 2026.
- Exponential Valuation Trajectory: Kalshi’s valuation accelerated from $11B to $40B within months.
- Legacy Operator Headwinds: DraftKings and Flutter Entertainment experienced significant competitive pressure during the World Cup.
- Demographic Advantage: Federal regulation enables participation from users aged 18+, expanding the addressable market.
Prediction Markets vs. Traditional Sportsbooks
Structural Comparison
2026 Market Performance
Trading Volume, Liquidity & Market Share
Methodology: The reported market-share figures compare prediction-market trading volume with sportsbook betting handle. Although not perfectly equivalent metrics, they provide a strong directional indicator of market adoption.
Pricing Efficiency
Why Prediction Markets Are Winning on Margin
While marketing and accessibility accelerated adoption, pricing efficiency remains the industry's strongest competitive advantage.
A comprehensive review by Citizens JMP Securities across 104 FIFA World Cup matches showed that exchange-based prediction markets consistently offered lower transaction costs than traditional sportsbooks.
- Polymarket: 2.70%
- Kalshi: 4.71%
- DraftKings: 4.97%
- FanDuel: 5.07%
Excluding Polymarket, Kalshi still offered better pricing than DraftKings in more than half of all directly comparable markets, reinforcing the structural efficiency of peer-to-peer order books.
User Growth & Market Expansion
Active Users and Demographic Shifts
During the 2026 FIFA World Cup, prediction markets demonstrated significantly stronger user retention than traditional sportsbook operators.
According to Apptopia, Kalshi continued gaining daily active users throughout the tournament, while DraftKings and FanDuel experienced declining engagement after their initial peaks.
Together, Kalshi and Polymarket accounted for approximately 50% of active users across the six largest wagering and trading applications, compared with only 6% one year earlier.
Expanding the Addressable Market
Kalshi also attracted a broader demographic profile. Female users increased by 106%, substantially outpacing male user growth and indicating that prediction markets appeal to audiences traditionally underrepresented in sports betting.
Kalshi's Hypergrowth
Valuation Timeline
Backed by leading venture capital firms and institutional investors, Kalshi has experienced one of the fastest valuation increases in the financial technology sector.
- October 2025 — ~$5B
- December 2025 — $11B
- May 2026 — $22B
- June 2026 — Targeting ~$40B valuation
As of April 2026, the company reported an annualized revenue run rate exceeding $2 billion.
Wall Street Impact
Pressure on Legacy Gaming Operators
Prediction markets are beginning to influence investor sentiment toward traditional gaming companies.
DraftKings and Flutter Entertainment both experienced notable share-price declines during the World Cup period, while investment analysts increasingly described exchange-based betting as a structural competitive threat rather than a temporary trend.
Although taxation and slowing sportsbook growth also contributed, prediction markets have clearly emerged as an important new competitive force.
Regulatory Landscape
The Polymarket Challenge
While Kalshi has focused on operating entirely within the U.S. federal regulatory framework, Polymarket continues navigating a far more complex international compliance environment.
France's gambling regulator ordered internet providers to block access to the platform during July 2026 following earlier enforcement actions. Similar restrictions now exist across numerous European jurisdictions as regulators evaluate whether event contracts should fall under existing financial-product rules governing binary options.
The contrasting regulatory strategies of Kalshi and Polymarket illustrate the two competing paths currently shaping the global prediction market industry.
Strategic Outlook
What Happens Next?
Prediction markets are no longer a niche financial experiment.
They now represent an alternative infrastructure for event trading, offering nationwide distribution, competitive pricing, greater liquidity, and broader accessibility than many legacy sportsbooks.
Whether traditional operators respond through acquisitions, partnerships, or by building exchange-based products internally will likely define the industry's competitive landscape over the next several years.
Frequently Asked Questions
What is a prediction market?
A prediction market is a financial exchange where participants trade contracts based on future real-world events. Prices reflect the market's collective estimate of the probability of each outcome.
Is Kalshi considered sports betting?
Legally, Kalshi operates as a federally regulated financial exchange under the CFTC rather than as a state-licensed sportsbook.
Which platform is larger?
Within the United States, Kalshi currently leads regulated trading volume, while Polymarket maintains a substantial international user base.
Why are sportsbooks losing market share?
Prediction markets combine lower pricing, nationwide availability, broader demographic access, and an exchange-based trading model that appeals to sophisticated users.
