Kalshi Hits $2 Billion Daily Volume as Prediction Markets Reshape US Sports Betting

Prediction markets in the United States hit a pivotal milestone in July 2026, with Kalshi reaching more than $2 billion in daily trading volume and surpassing both DraftKings and FanDuel in mobile app usage during the FIFA World Cup. The platform, which operates under federal Commodity Futures Trading Commission oversight, captured 27% of all legal US sports-betting activity during the tournament, up from 9% at the start of 2026. A new analytics platform called Ticker Tracker, built by former Legal Sports Report journalist Eric Ramsey, now provides real-time tracking of prediction market data, as Macquarie Equity Research projects the sector could grow from $22 billion to $1.5 trillion in notional volume by 2030.

• Peak volume: More than $2 billion in daily trading on Kalshi in July 2026, with World Cup notional volume exceeding $33 billion (source: Ticker Tracker via CasinoBeats, July 2026)
• Market share: Prediction markets captured 27% of legal US sports-betting volume during the 2026 World Cup, up from 9% at the start of the year (source: Fortune, July 2026)
• 2030 forecast: Macquarie Equity Research projects total taker volume growing from $22 billion to $1.5 trillion by 2030 (source: Macquarie, as cited by CasinoBeats)

Updated July 2026

What Are Prediction Markets and How Do They Work?

Prediction markets allow users to buy and sell contracts tied to the outcome of real-world events, ranging from sports results and elections to economic indicators. Each contract pays out at a fixed value, typically $1, if the event occurs, and expires worthless if it does not. The price of a contract at any moment reflects the crowd's implied probability of that outcome. On Kalshi, for example, a contract priced at $0.27 implies a 27% chance that the underlying event occurs. Unlike traditional sportsbooks, which set fixed odds and act as the counterparty to each wager, prediction markets match buyers and sellers in a two-sided exchange. Kalshi classifies its contracts as derivatives rather than gambling products, which is why it operates under CFTC oversight rather than state gaming licences.

How Big Did Kalshi Get During the 2026 World Cup?

The 2026 FIFA World Cup, hosted across the United States, Canada, and Mexico, proved to be a turning point for US prediction markets. Kalshi's total notional volume across the tournament exceeded $33 billion. At peak, the platform recorded more than $2 billion in single-day trading, a figure approximately ten times the daily volumes seen at the start of 2026. During the tournament, Kalshi reported more daily mobile app users than either DraftKings or FanDuel, according to app analytics firm Apptopia, a direct reversal of the competitive hierarchy that existed twelve months earlier. After the final, daily volumes settled above $1 billion, indicating that the World Cup attracted a sustained base of new users rather than a purely transient surge.

How Do Prediction Markets Compare to Traditional Sportsbooks?

Prediction markets and traditional sportsbooks now compete directly for US sports bettors, but they operate under fundamentally different legal and structural frameworks. The table below compares the two models as of July 2026.

Feature	Prediction Markets (Kalshi)	Traditional Sportsbooks (DraftKings, FanDuel)
Regulator	CFTC (federal, treated as derivatives)	State gaming commissions (varies by state)
Legal framework	Financial instrument (commodity contract)	Gambling product under state law
Sports market share (World Cup 2026)	27% of US legal sports-betting volume	Combined approx. 73% of US legal sports bets
App users at peak (World Cup 2026)	More daily users than DraftKings or FanDuel	Second and third by daily active users
US market share among prediction platforms	Kalshi: 89% (Bank of America, April 2026)	Not applicable
2030 volume forecast (Macquarie)	Up to $1.5 trillion notional	Market share declining relative to prediction markets
Available nationally	Contested: federal preemption vs state objections	Live in roughly 38 US states

The stock market reaction has been sharp. Both DraftKings and Flutter Entertainment (the parent company of FanDuel) saw their share prices fall more than 25% in the year to July 2026, with analysts citing prediction market competition as a key factor alongside softer handle growth in established states.

What Is Ticker Tracker and Why Was It Built?

Ticker Tracker is a free, publicly accessible platform that aggregates and visualises trading data from US-regulated prediction market exchanges in real time. It was built by Eric Ramsey, a former journalist at Legal Sports Report, who identified a gap in available tooling as prediction market data multiplied but no single aggregator existed to track and compare it across platforms. In an interview with CasinoBeats, Ramsey explained the motivation: "Like all good inventions, it was sort of born out of necessity. I needed a way to aggregate all this data that was coming from prediction markets, and there just wasn't really a good tool that existed." The platform currently tracks Kalshi and Underdog, with Polymarket and Crypto.com scheduled to be added. Ticker Tracker is particularly valuable for separating notional volume from actual dollars at risk, a distinction that is central to accurately sizing the prediction market industry.

What Is the Difference Between Notional Volume and Actual Dollars Wagered?

A recurring challenge in understanding prediction market statistics is the difference between notional volume and actual money exchanged. A contract on Kalshi with a face value of $1 that is purchased at a price of $0.27 contributes $1 to the notional volume figure, but only $0.27 actually changes hands. This means the $33 billion in World Cup notional volume, while still a very large number, represents a smaller sum in terms of real cash at risk. Ticker Tracker surfaces this distinction explicitly, which is why it has been welcomed by analysts and journalists seeking to make accurate comparisons between prediction markets and traditional sportsbooks, where handle figures represent actual dollars wagered rather than contract face values. Without this distinction, headline prediction market figures can overstate the effective scale of the industry relative to established sports-betting markets.

What Does Macquarie's Forecast Say About Prediction Markets by 2030?

Macquarie Equity Research has published one of the most widely cited long-term forecasts for US prediction markets. The investment bank projects that total taker volume will grow from approximately $22 billion today to $1.5 trillion by 2030, a roughly 68-fold increase over four years. Within that growth, the composition of the market is expected to shift: sports contracts, which currently represent roughly 75% of all prediction market activity, are forecast to decline from 88% to 47% of total volume as non-sports categories such as finance, politics, and economic indicators grow. In absolute terms, sports taker volume would still expand from around $9 billion to $247 billion, even as its share of the overall market shrinks. Non-sports taker volume is projected to rise from $1.3 billion to $274 billion over the same period.

How Does Kalshi's CFTC Regulation Differ From State Sports Betting Licences?

The regulatory distinction between prediction markets and traditional sportsbooks is the most consequential legal question in US gambling today. Kalshi's contracts are classified as commodity derivatives under the Commodity Exchange Act and regulated by the CFTC, a federal agency. This means Kalshi argues that federal law preempts state gambling statutes, allowing it to operate nationally without seeking individual state licences. Traditional sportsbooks, by contrast, require a separate licence in every state where they accept wagers and are subject to a patchwork of state-level tax rates, advertising rules, and product restrictions. The practical implication is that if Kalshi's federal preemption argument holds in court, prediction markets could gain a structural cost and regulatory advantage over state-licensed competitors. Several states, including Nevada and Massachusetts, have challenged this interpretation and obtained preliminary court injunctions against Kalshi. New Jersey lost its own appeal to limit Kalshi's operations. The legal position remained unresolved as of July 2026, with no definitive federal appeals court ruling issued.

Which Platforms Dominate the US Prediction Market?

Kalshi controls approximately 89% of measurable US prediction market volume, according to Bank of America estimates from April 2026. The remaining volume is split between Polymarket at around 7% and Crypto.com at approximately 4%. Kalshi's dominance has increased significantly since it began offering sports-event contracts in 2025, which accelerated user acquisition and volume growth substantially. Polymarket, which attracted significant attention for political event contracts, has seen its market share decline as Kalshi's federally regulated sports markets drew a larger mainstream user base. Underdog is a smaller participant tracked by Ticker Tracker, with a focus on fantasy-adjacent prediction formats. According to CoinDesk, Kalshi posted a 6% weekly gain in volume in the period when its 89% market share figure was recorded, while Polymarket's volume fell 16%.

Are Prediction Markets Legal in All US States?

The legal status of prediction markets across US states remains actively contested as of July 2026. Kalshi argues that its federal CFTC registration means it can legally operate in all 50 states without state-level gambling licences. Several state gaming regulators disagree. Nevada and Massachusetts have obtained preliminary court injunctions against Kalshi's sports contracts in their jurisdictions, while New Jersey's attempt to restrict Kalshi failed on appeal. The core legal dispute is whether CFTC-regulated event contracts constitute gambling under state law or financial instruments protected by federal preemption. A definitive ruling from a federal appeals court or the Supreme Court would clarify the position for all states simultaneously, but no such ruling had been issued as of the date of publication. The regulatory uncertainty has not slowed Kalshi's growth, but it creates an unresolved legal question that could affect future product expansion.

What Are the Risks and Broader Implications of Prediction Market Growth?

The rapid ascent of prediction markets carries risks that regulators, public health researchers, and consumer advocates have begun to identify. Because Kalshi's contracts are classified as financial instruments rather than gambling products, they fall outside the responsible gambling frameworks, stake limits, and affordability checks that apply to licensed sportsbooks in many US states. Some researchers argue that the continuous, exchange-style trading model with real-time price updates could foster more intensive gambling patterns than fixed-odds products. The notional volume figures widely cited in market-size discussions also tend to overstate the actual money at risk, creating a risk that policymakers working from headline numbers may misjudge the market's true scale. As the sector approaches the figures projected by Macquarie, regulatory frameworks will need to evolve in parallel. For the traditional sportsbook industry, the World Cup results represent a clear signal that prediction markets are no longer a niche alternative but a mainstream competitive force.

Frequently Asked Questions

What is Kalshi and what does it do?

Kalshi is a US prediction market exchange regulated by the CFTC. It allows users to buy and sell contracts tied to the outcomes of real-world events, including sports matches, elections, and economic indicators. It reached more than $2 billion in daily trading volume in July 2026.

How did prediction markets perform during the 2026 World Cup?

Prediction markets captured 27% of US legal sports-betting volume during the 2026 World Cup, up from 9% at the start of the year. Kalshi's total World Cup notional volume exceeded $33 billion, and the platform had more daily app users than DraftKings or FanDuel at peak tournament activity.

Is Kalshi a gambling platform?

Kalshi classifies its contracts as commodity derivatives under federal law and operates under CFTC oversight, not state gambling licences. Whether its products constitute gambling under state law is the subject of ongoing legal disputes in multiple US states, with preliminary injunctions issued in Nevada and Massachusetts.

What is the Macquarie prediction market forecast for 2030?

Macquarie Equity Research forecasts that total prediction market taker volume in the US will grow from approximately $22 billion to $1.5 trillion by 2030, with sports declining from 88% to 47% of the overall mix as non-sports categories such as finance and politics grow significantly.

What is Ticker Tracker?

Ticker Tracker is a free analytics platform built by former Legal Sports Report journalist Eric Ramsey. It aggregates and visualises real-time trading data from US-regulated prediction market exchanges, currently including Kalshi and Underdog, with Polymarket and Crypto.com scheduled to be added.

Which prediction market has the largest US market share?

Kalshi controls approximately 89% of measurable US prediction market volume, according to Bank of America estimates from April 2026. Polymarket holds around 7% and Crypto.com approximately 4%.