SiaPredict DailySeptember 1, 2026
Top line
Oklahoma tribal leaders and Attorney General Gentner Drummond escalated the sovereignty and gambling-law fight against Kalshi just as the Senate's September 15 Clarity Act cloture vote approaches, showing the jurisdictional battle now runs through Congress as well as the courts. Capital kept flowing regardless, with Donald Trump Jr.'s 1789 Capital leading a $1 billion Polymarket round at a $21 billion valuation and Morgan Stanley upgrading Robinhood on the strength of its prediction-market revenue. Kalshi also issued its first-ever lifetime trading ban, against George Santos, and Hyperliquid took its first concrete step toward a regulated US foothold through Kraken parent Payward.
Today's top 5
- 1Regulatory
Oklahoma tribal leaders and AG Drummond escalate sovereignty fight against Kalshi ahead of Clarity Act vote
Oklahoma Indian Gaming Association Chairman Matthew Morgan and Indian Gaming Association Chairman David Bean argued Kalshi's sports and election contracts violate the Indian Gaming Regulatory Act, adding Oklahoma to a fight that already includes separate lawsuits from three California tribes and four New Mexico tribes. Oklahoma Attorney General Gentner Drummond has filed comments with the CFTC calling Kalshi's contracts "unequivocally gambling," and tribal gaming groups are lobbying against the Senate's September 15 Clarity Act cloture vote. It is a reminder that tribal sovereignty is a distinct legal and political track from the state-AG and CFTC jurisdictional fight, now with its own federal-legislation angle.
KGOUSia's Take
Look for tribal gaming associations and tribal gaming commissions to take a stronger stance against the operation of prediction markets in states where tribal gaming plays a prominent role in the sports betting space. The operation of licensed prediction markets in states like Oklahoma and California (where online sports betting is banned) chips away from the market share of gambling revenue with tribal gaming associations and commissions have come to rely on. Prediction Market operators need to be aware of the specific tribal gaming laws and regulatory standards if prediction market oversight ever falls to individual state and local jurisdictions.
- 2Industry
Kalshi hands George Santos its first-ever lifetime trading ban
Kalshi permanently barred former Rep. George Santos after he failed to cooperate with a compliance investigation into trades and public statements he made about his own attendance at the State of the Union, ordering him to pay $71,356 on top of the CFTC's July settlement of a $35,000 penalty and three-year trading ban over the same conduct. It is Kalshi's first lifetime ban and a case of a platform imposing a longer sanction than its federal regulator over the same underlying conduct, a data point compliance teams can cite when assessing how far exchange-level surveillance programs will go independent of CFTC enforcement.
CBS NewsSia's Take
In a first-of-its-kind action, Kalshi permanently barred a former politician from trading on its platform after they were proven to have manipulated markets for their financial benefit. This action is the clearest indication of how easily spot markets and event markets can be manipulated by individuals with inside information. Maintaining a comprehensive market surveillance program is key for the future operation of licensed prediction markets. Additionally, prediction market operators should also have adequate controls in place to ensure that certain politically exposed persons (PEPs), and those adjacent to them, should not be able to trade on politics-specific event contracts.
- 3Industry
Trump Jr.'s 1789 Capital leads $1 billion Polymarket round at a $21 billion valuation
1789 Capital is contributing roughly $300 million on top of an earlier stake of about $200 million, bringing its total Polymarket commitment to around $500 million, in a round that values the company at $21 billion, up 40% from about $15 billion a few months ago and now approaching Kalshi's $22 billion valuation. Donald Trump Jr. sits on Polymarket's advisory board while also holding an advisory relationship with Kalshi, a dual tie that has already drawn a Senate inquiry into whether Trump-linked investment affects CFTC treatment of the platforms. Expect continued scrutiny of Trump-family financial ties to both operators as the round closes.
CoinDesk - 4Industry
Hyperliquid pursues US market entry through Kraken parent Payward's Bitnomial
Payward has presented the CFTC an outline under which its CFTC-licensed Bitnomial subsidiary would offer US traders a slate of crypto perpetual contracts linked to Hyperliquid's decentralized markets, rather than connecting users directly to Hyperliquid itself. Approval is not close, outside counsel estimates 10 to 12 months before the SEC and CFTC resolve the custody and routing questions the wrapper structure raises, but it is the first concrete structural proposal following President Trump's August remark that regulators were working to bring Hyperliquid onshore. It is a template worth watching for how decentralized derivatives platforms may seek a regulated US wrapper rather than direct registration.
The Block - 5Industry
Morgan Stanley upgrades Robinhood to overweight, citing prediction markets as an underappreciated monetization driver
Morgan Stanley raised Robinhood to overweight from equal-weight and lifted its price target to $150 from $124, with analyst Michael Cyprys pointing to prediction-market revenue growing from $10 million to $156 million in a single year across fewer than 2 million users as evidence of durable, not one-off, monetization. The bank now models a 23% revenue CAGR through 2028, about 6% above consensus. It is a concrete sell-side signal that prediction markets are being priced as a structural growth line for diversified brokerages, not just a novelty tied to elections or sports seasons.
Yahoo Finance