SiaPredict DailySeptember 22, 2026

Today's top 8

1. 1
   Regulatory

   Kalshi Klear asks CFTC to let institutions trade event contracts on margin

   Kalshi's clearinghouse, Kalshi Klear, filed a Regulation 40.5 request on September 22 asking the CFTC to end the requirement that every event contract be paid for in full, letting qualifying institutional participants post partial collateral that scales with a contract's proximity to resolution. Sports, mention, and culture markets are excluded from eligibility, and the CFTC has 45 days to act. If approved, it would be the first leveraged trading permitted on a US-regulated event-contract exchange, a meaningful step toward institutional adoption.

   CryptoTimes
2. 2
   RegulatoryCatch-up

   Kalshi, Coinbase and Bitnomial file dueling bids for single-stock perpetual futures

   Kalshi and Coinbase each filed CFTC and SEC proposals on September 18 to list perpetual futures on individual US stocks including Apple, Tesla, Microsoft, Nvidia and Amazon, with Kraken parent Payward's Bitnomial Exchange filing a similar proposal covering ten equities the next day. Because the underlying assets are securities, all three filings require joint SEC-CFTC review, unlike Kalshi's crypto and metals perpetuals that clear solely through the CFTC. Citadel Securities has already warned both agencies that CFTC self-certification could let a stock-linked perpetual trade on leverage while the underlying equity market is closed, sharpening the jurisdictional fight.

   Cointelegraph
3. 3
   RegulatoryCatch-up

   FOIA records show CFTC quietly opened three Polymarket insider-trading probes

   Records obtained via a Freedom of Information Act request show CFTC Chairman Michael Selig authorized three separate enforcement-division investigations into Polymarket between May and July, covering contracts on Biden-era pardons, Iran-related events, and Google's 2025 Year in Search rankings. None had been publicly disclosed before this week's reporting, and the CFTC has not said whether any is still open or has produced charges. It is a reminder that open CFTC inquiries into a platform's most-traded categories can run for months without a public docket entry.

   Yahoo Finance
4. 4
   RegulatoryCatch-up

   Tribal leaders say CFTC's Selig 'sat mostly silent' at first prediction-markets listening session

   At the CFTC's September 15 listening session with 17 tribal gaming organizations, Indian Gaming Association Chair David Z. Bean said Chairman Michael Selig 'sat mostly silent and refused to discuss his proposed rule,' and National Congress of American Indians President Mark Macarro said tribal nations 'deserve a seat at the table.' Tribal leaders characterized the session as falling short of the government-to-government consultation federal law requires, a criticism that lands two days before the CFTC's own no-action letter enabled the Tunica-Biloxi Tribe's Kalshi-powered launch.

   InGame
5. 5
   RegulatoryCatch-up

   Second class action accuses Polymarket of staging fake influencer wins

   A DC resident's class action, Moeller v. Blockratize (D.D.C., filed September 2, reported September 16), alleges Polymarket's marketing team paid influencers, using a personal PayPal account for more than $350,000 between January 2025 and February 2026, to post scripted videos of fabricated winning trades placed on internal development servers rather than the live platform. The complaint says the videos, distributed 'scrubbed of any tie to Polymarket' and drawing over 140 million views, ran while Polymarket was still legally barred from serving US customers, adding a second private plaintiff to litigation that already includes a June 2026 consumer-advocacy suit over the same influencer campaign.

   ClassAction.org
6. 6
   IndustryCatch-up

   CME quietly winds down its sports and cultural event contracts

   In a self-certified filing effective September 11, CME said it will stop adding new expiries for its sports- and cultural-event contract swaps, including markets on the Oscars and Grammys, letting existing positions run off through expiration. Once those contracts mature, CME's own prediction-markets push effectively goes dark unless it files another rule change, a retreat that follows CEO Terry Duffy's public criticism of sports-linked event contracts as gambling-adjacent and leaves FanDuel Predicts sourcing that category from Crypto.com instead.

   DeFi Rate
7. 7
   Industry

   Tunica-Biloxi Tribe launches Kalshi-powered SaltTrade Derivatives, drawing fire from other tribes

   The Tunica-Biloxi Tribe of Louisiana went live with SaltTrade Derivatives, the first tribally owned prediction-market app, built on Kalshi's exchange infrastructure and relying on the CFTC's September 17 no-action letter to avoid introducing-broker registration. The California Nations Indian Gaming Association called the move 'profoundly disappointing,' and the Indian Gaming Association noted it came less than 48 hours after the Ninth Circuit held Kalshi's sports contracts are Class III gaming under IGRA, exposing a split among tribes over whether to partner with or fight Kalshi.

   Yogonet
8. 8
   Industry

   Kalshi disputes wash-trading allegations on its Ethereum perpetual futures

   A pseudonymous quant analyst flagged that Kalshi's ether perpetual contracts logged $539 million in 24-hour volume against just $3.1 million in open interest, with identical $5,500 trades accounting for up to 58% of that volume on several days, a pattern CoinDesk said resembles wash trading. Kalshi's crypto lead disputed the claim, attributing the gap to an industry convention that records volume as maximum potential payout rather than cash spent, and noted the exchange publicly files its fee and rebate schedules rather than negotiating them privately; no regulator has brought a claim.

   CoinDesk