[REVISION HISTORY]

US prediction markets expand amid massive volume and youth's

Updated 49 times since CLSTR started tracking revisions of this situation.

What changed

2026-10-12 01:52 UTC → 2026-10-19 01:16 UTC · added ~~removed~~

US prediction markets ~~grow~~ expand amid ~~regulatory battles~~ massive volume and youth's

The US prediction market landscape continues to expand, with combined notional volume in sports and combo contracts reaching $68.18 billion over a 30-day period. While Kalshi maintains a dominant position, competitors such as Polymarket U.S., DKeX, and Novig are actively growing their market shares. Regulatory is experiencing massive growth and ~~integrity concerns persist. Debates continue regarding whether sports-based event contracts should be classified as~~ financial ~~derivatives under the CFTC or as gambling subject~~ expansion. Kalshi, which claims a 90% to ~~state laws. A coalition~~ 95% share of ~~44 state attorneys general~~ the US market, has ~~argued~~ significantly scaled its operations, reporting annualized trading volumes of $178 billion by April 2026. The company has also secured substantial private equity, raising approximately $1.12 billion toward a $1.5 billion target, following a $1 billion Series F round that ~~CFTC regulation should not preempt state gambling laws, describing~~ valued the firm at $22 billion. Market activity remains driven by major sporting events, with platforms ~~as a “new form of casino.” In response to these pressures, companies~~ like Kalshi, Polymarket, and ~~the Coalition for Prediction Markets have spent at least $3 million on lobbying~~ ProphetX utilizing promotional bonuses and ~~campaign contributions. Similar regulatory scrutiny is emerging in Canada, where the Nova Scotia Securities Commission is hosting educational sessions~~ referral incentives to ~~address risks involving prediction markets~~ attract users during MLB and ~~event contracts. Market activity~~ NFL seasons. This surge has ~~reached massive scales; Kalshi and Polymarket recently reported~~ led to a ~~combined two-day~~ notable trend of participation among young adults; users aged 18 to 21 have accounted for an estimated $5.4 billion in Kalshi trading volume ~~of $8.56 billion, driven largely by NFL~~ this year, with $3.9 billion directed toward sports-related events. This demographic shift has intensified regulatory and ~~NCAA events, Federal Reserve decisions,~~ legal scrutiny. Critics argue that Kalshi’s status as a CFTC-regulated financial exchange creates a “loophole for underage gambling,” as it allows 18-year-olds access to markets that traditional state-regulated sportsbooks typically restrict to those 21 and ~~pop culture.~~ older. This ~~surge~~ has ~~intensified scrutiny regarding market structure.~~ resulted in legal challenges, including a lawsuit from New York State alleging the platform operates an unlicensed gambling service. Additionally, professional bettors are increasingly migrating to prediction markets to avoid the account limits often imposed by traditional sportsbooks. While Kalshi ~~utilizes liquidity programs to prevent self-trading~~ and Polymarket ~~employs blockchain analysis to monitor for wash trading or spoofing, observers~~ continue to ~~question~~ hit record-breaking volumes, observers remain focused on market integrity, specifically regarding whether ~~reported volumes reflect~~ high turnover reflects genuine two-sided liquidity. Other concerns include potential insider trading within political campaigns. An analysis by the Anti-Corruption Data Collective found that “knowable markets”—such as bets on candidate withdrawals—have attracted over $20 million in volume, creating opportunities for those with non-public information to profit. liquidity or manipulative practices like wash trading.

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