Infiniti Intelligence Hourly Briefing — Oct 15, 2026 · 2:54 AM ET

College football generated more than $6.65 billion in single-market outcome trading from August 23 through the games on Saturday, October 10, according to RotoWire’s report by Bill Speros, updated October 13, 2026, at 11:46AM EST. The Aldrin Research dataset covers 9 platforms licensed by the Commodity Futures Trading Commission (CFTC), along with Polymarket’s international site.

Volume concentrates in two operators

Kalshi accounted for $3.45 billion, while Polymarket’s U.S. and international operations recorded $1.386 billion. RotoWire reported their combined share as 72.02%, comparing that concentration with DraftKings and FanDuel’s position in online sports betting.

October 10 alone produced more than $865.9 million in single-market trades, with a schedule that included Indiana–Nebraska in the Big Ten’s Big Noon Kickoff slot and Georgia’s 20-17 prime-time victory over Alabama at Saban Field. Among the 480 games traded on Kalshi this season, Ohio State–Texas on September 12 led combined outcome and spread activity with more than $60.6 million. Georgia–Alabama ranked first on Polymarket at more than $28.8 million.

Heisman and championship pricing

RotoWire’s snapshot put Ohio State wide receiver Jeremiah Smith’s Heisman Trophy probability at 55%, with the presentation scheduled for December 12 at the Downtown Athletic Club in New York. Smith had traded as low as 23.4% on October 2, before Ohio State beat Iowa 31-14 the following day; his 11 catches, 206 yards and 2 TDs helped lift his price to 47.6% by that evening in Iowa City. Polymarket priced Smith at 57%, compared with a season low of 5%, while Miami QB Darian Mensah stood second at 11% on both Polymarket and Kalshi and Notre Dame QB C.J. Carr ranked third on both.

Georgia, at 5-0, moved to No. 1 in that week’s AP Top 25 after its Tuscaloosa victory, a result RotoWire characterized as benefiting from officiating. Kalshi assigned Georgia a 20% chance of winning the NCAA Championship, whose final is scheduled for January 25 at Allegiant Stadium in Las Vegas, followed by Ohio State at 17% and Notre Dame at 15%. Georgia traded at 24% on Polymarket U.S., where Notre Dame and Ohio State shared second at 14%, versus 19% on Polymarket International, where Miami ranked second at 16% and Ohio State third at 14%.

NCAA engagement remains preliminary

The trading growth comes amid continuing disagreements between the NCAA and prediction-market operators. According to RotoWire, federal law allows participation on prediction platforms at age 18, whereas state-regulated online sports betting generally requires bettors to be 21 in nearly every state. The NCAA has also raised concerns about integrity, individual-player contracts, manipulation and potential markets involving injuries or coaches’ dismissals.

RotoWire first reported in June that the NCAA was holding informal conversations with operators about their available markets and integrity safeguards. NCAA Associate Director Mark Hicks, speaking after a panel at SBC Americas, said those exchanges were exploratory and intended to help the association understand the platforms, rather than formal discussions of data-sharing or integrity partnerships.

That engagement contrasts with NCAA President Charlie Baker’s January request that the CFTC temporarily stop college-sports trading pending appropriate regulation. Hicks nevertheless described the sector and its relationship with the NCAA as developing, with uncertainty over how operators would respond to problems or cooperate with the association, while emphasizing the importance of remaining open to discussions.

What it means for prediction markets

• Volume is concentrated: Kalshi and Polymarket represented a reported 72.02% of tracked activity, making their college-football markets central to this snapshot.
• Contract scope matters: The season total covers single-market outcomes, while Kalshi’s leading individual-game figure combines outcome and spread trades.
• Prices differ across venues: Georgia’s championship probabilities ranged from 19% to 24%. These are reported snapshots, not necessarily current prices.
• Institutional questions remain unresolved: Informal NCAA engagement has not yet become formal talks on data-sharing or integrity partnerships, according to Hicks.

Federal classification meets state resistance

Two CFTC measures have sharpened the dispute over whether sports-event contracts belong under federal derivatives oversight or state gambling regulation. Nevada Gaming Control Board Chairman Mike Dreitzer said he had anticipated the moves during an Indian Gaming Association webinar, according to CDC Gaming reporting cited by ReadWrite.

The measures take different approaches to the boundary. A proposed rule would expand the federal swap definition to cover event contracts involving culture, weather, politics and sports. A separate interim final rule, effective upon publication in the Federal Register, affirms the CFTC’s position that sportsbook wagers, casino games and other casino-style gambling products fall outside that definition.

Nevada challenges the distinction

Dreitzer disputed the practical difference between sports-event contracts and sportsbook bets. He compared a $10 wager on the New York Giants with a $10 sports-event contract, arguing that federal classification does not change their underlying function, according to ReadWrite.

He also rejected peer-to-peer trading, price discovery and the ability to enter or exit positions as sufficient distinctions from sports betting, noting that traditional online sportsbooks offer cash-outs. He questioned the peer-to-peer description when financial firms or other exchanges can trade against a casual customer.

A lawyer and former senior executive at Gaming Arts and Ainsworth Game Technology, Dreitzer framed Nevada’s concern around how the products operate. His position is that sports-event contracts functioning like sportsbook wagers should remain subject to state gambling oversight, regardless of their federal treatment.

Kalshi seeks another hearing

On the same Friday that the CFTC advanced its measures, Kalshi requested a rehearing in its Sixth Circuit dispute with regulators in Ohio and Tennessee. According to ReadWrite, the appeals court had unanimously ruled against Kalshi, finding that prediction markets were not exempt from state gambling laws, including tax requirements.

The rehearing request does not alter that decision: Kalshi remains subject to the state requirements at issue unless the ruling changes. Separately, the account provides neither a comment deadline nor a timetable for finalizing the CFTC’s proposed rule.

What it means for prediction markets

• Rule status matters: The expanded swap definition is proposed, while the separate exclusion for casino-style gambling takes effect upon Federal Register publication.
• Federal classification does not resolve the dispute: Nevada contests the distinction between sports-event contracts and sportsbook wagers, leaving state-law questions contested.
• The Sixth Circuit ruling remains operative: Kalshi’s rehearing request is the next procedural step described, not a reversal of the decision or its treatment of state tax requirements.