Infiniti Intelligence Hourly Briefing — Oct 12, 2026 · 5:54 AM ET

CFTC seeks clearer authority over event contracts

The Commodity Futures Trading Commission (CFTC) is proposing to bring contracts tied to sports, political, cultural and weather-related events explicitly within its definition of financial swaps, according to PYMNTS. The rulemaking plan, published Friday (Oct. 9), comes amid a legal battle over prediction markets that could reach the Supreme Court. The proposals carry 30-day comment windows.

Chairman Michael S. Selig argues that event contracts are commodity derivatives governed by the Commodity Exchange Act and fall exclusively under the CFTC’s authority. He has pointed to their use for hedging, speculation and generating information about future outcomes.

Federal classification, state resistance

That position would place platforms such as Polymarket and Kalshi under federal derivatives oversight. State agencies dispute the commission’s claim to sole authority, arguing that prediction platforms operate illegal gambling businesses. Federal courts have ruled in favor of both sides, according to PYMNTS, leaving the jurisdictional dispute unresolved.

The commission has also proposed excluding casino-style gambling products from the swaps definition, a measure PYMNTS reported on last month. Drawing that distinction could strengthen operators’ argument for treatment under federal derivatives law. But PYMNTS also noted that federal courts have found the CFTC’s exclusive-jurisdiction provision does not, by itself, override state gambling laws—even if the contracts qualify as swaps.

NFL presses for local oversight

The National Football League (NFL) told the Supreme Court last week that local gambling regulators should oversee prediction markets. In an amicus brief, the league argued that the CFTC had not addressed its concerns about game integrity and consumer protection, according to PYMNTS.

Kalshi spokesperson Elisabeth Diana told CoinBase last week that the company had repeatedly sought cooperation with the NFL on market integrity without receiving a response. She also pointed to Kalshi’s partnerships with other professional sports leagues, including Major League Baseball and the National Hockey League.

What it means for prediction markets

• The classification remains proposed. The 30-day comment windows are a procedural step, not a final resolution of how event contracts will be regulated.
• Swaps status may not settle jurisdiction. The court findings described by PYMNTS show that classification under federal derivatives law and exposure to state gambling laws remain separate questions.
• Sports contracts face a distinct oversight challenge. The NFL’s Supreme Court filing puts game integrity and consumer protection alongside the broader federal-versus-state dispute.
• Court outcomes remain consequential. Conflicting federal rulings leave uncertainty over whether the CFTC’s approach will withstand judicial scrutiny.

Search interest and trading activity diverge

Polymarket led U.S. branded prediction-market searches even as Kalshi held the lead in trading, according to Gambling Insider. The contrast separates consumer attention from activity on the platforms.

Blask data covering January-August 2026 put Polymarket’s share of branded prediction-market search demand at 57.8%, compared with 74.3% previously. The available summary does not identify the period associated with that earlier figure.

A narrower view of platform competition

The figures were recirculated in the hours before the report’s publication on Oct 12, 2026, at 5:54 AM ET. They describe search demand over January-August 2026, rather than a fresh measurement of October activity.

The full source text was unavailable, and the summary cuts off before providing Kalshi’s search figures. That limits the comparison: Polymarket’s search lead and declining share are documented, but the supplied material does not quantify Kalshi’s trading dominance or its share of searches.

What it means for prediction markets

• Attention is not trading activity. Polymarket’s search lead should not be treated as evidence that it also leads in trading.
• The measurement window matters. Recently recirculated figures covering January-August 2026 do not establish current platform standings.
• The comparison remains incomplete. Without Kalshi’s search figures or supporting trading totals, the material cannot quantify the gap between brand interest and trading leadership.

Brazil restrictions return to attention

Renewed attention to a HackerNoon report by António Madeira is putting Brazil’s prediction-market restrictions back in focus. The coverage, resurfacing on Oct 12, 2026, says Banco Central do Brasil and the National Monetary Council issued Resolution №5,298, prohibiting derivatives linked to sports, politics, gaming, cultural events and social outcomes. HackerNoon reports that the measure prompted Polymarket and Kalshi to shut down nationwide. The resurfaced coverage does not itself establish that the decision is new.

According to HackerNoon, Brazilian regulators cited investor protection, market integrity and the potential damage from arbitrage and speculation. The outlet describes Brazil as the third Latin American country to ban prediction markets, after Argentina and Colombia. It also reports that Portuguese regulators blocked Polymarket earlier in the year and cites the platform’s documentation as listing restrictions in more than 30 countries.

Competing approaches to oversight

The US picture differs: according to HackerNoon, the Commodity Futures Trading Commission (CFTC) sued Arizona, Illinois and Connecticut over restrictions on access to platforms including Polymarket and Kalshi. The report also identifies Donald Trump Jr. as a Polymarket investor and an adviser to both companies. It recounts President Donald Trump comparing the world to a casino when asked about an industry insider-trading scandal, although the supplied coverage does not establish a calendar date for that exchange.

HackerNoon contrasts the industry’s forecasting appeal with concerns about participants influencing outcomes or trading on privileged information. It credits Polymarket with correctly anticipating the 2024 US presidential election result ahead of traditional forecasters. But Madeira argues that such forecasting value becomes harder to assess when traders can affect the underlying event, particularly where anonymous participation and limited oversight are possible. His discussion also criticizes gaps in real-time surveillance, large-position disclosure and consistent treatment of manipulated outcomes.

Integrity cases behind the debate

One example involves Paris temperature contracts. According to HackerNoon, Polymarket paid $14,000 on April 6 and $20,000 on April 15 after readings exceeded unlikely thresholds at a single Météo-France sensor at Charles de Gaulle Airport. Meteorologists considered natural explanations implausible; the leading theory was exposure to an unidentified heat source, possibly a cordless hair dryer. That explanation remains a theory in the supplied report. HackerNoon says losing traders received no refunds and Polymarket subsequently changed the contracts’ resolution source to another airport.

A separate episode was a joke rather than a documented manipulation. While hosting the 2026 Grammy Awards in Los Angeles, Trevor Noah repeatedly said “potato,” then suggested that a Polymarket user, @noah_22, had profited. According to HackerNoon, the platform offered live markets on words spoken at the ceremony, but that word was not an available selection, so the supposed wager could not legitimately have been placed.

The report also describes a criminal case involving a US Army Special Forces Master Sergeant who participated in planning Operation Absolute Resolve and opened a Polymarket account in December, 2025. Between December 27 and January 2, he placed roughly $33,000 in affirmative bets on a US invasion of Venezuela, Maduro’s removal by January 31 and Trump invoking the War Powers Act, winning $409,000, according to HackerNoon. After Trump announced the capture of Venezuelan leader Nicolás Maduro, the servicemember allegedly sought deletion of his account, saying he had lost email access. The DOJ charged him with unlawful use of confidential government information, commodities fraud and wire fraud; those charges are allegations, not findings of guilt.

What it means for prediction markets

• Separate resurfacing from new action. The Oct 12, 2026 coverage timestamp should not be treated as confirmation of a newly issued Brazilian ban.
• Jurisdiction matters. The reported Brazilian prohibition, restrictions across more than 30 countries and CFTC litigation illustrate materially different approaches to platform access.
• Resolution sources deserve scrutiny. The Paris example highlights how a contract can depend on a vulnerable observation point—and how settlement and refund decisions can become separate issues.
• Forecasting accuracy does not settle integrity questions. Information advantages, potential influence over outcomes and alleged misuse of confidential information are distinct risks when interpreting market probabilities.