Prediction markets regulation: the running tracker

A running tracker of US regulatory developments, federal litigation, state enforcement actions, and legislative votes surrounding prediction market platforms.

Octans ResearchPublished 2026-07-30Updated 2026-07-30

Snapshot

This reference tracker collects regulatory actions, federal court filings, state attorney general enforcement moves, and Congressional votes affecting prediction market platforms. Designed for institutional policy desks and legal researchers, the dataset records official agency statements, lawsuits, and legislative milestones in sequence. The collected filings reflect a structural jurisdictional dispute between federal regulators and state authorities over event contract supervision. Readers should evaluate each logged action alongside its underlying source filing to trace regulatory precedents as enforcement unfolds.

Coverage: Independent Research
Prepared by: Octans Research
As of: 2026-07-30

What We Know

On March 23 2026, bipartisan Senate legislation targeted sports contracts hosted on prediction market platforms. The proposed bill seeks to restrict specific athletic event derivative offerings.
On March 17, prediction market Kalshi addressed a lawsuit filed by the Arizona attorney general, stating the action is meritless. The company indicated it intends to defend its regulatory status in court.
On April 13 2026, CFTC Chairman Rostin Behnam delivered an address at the National Press Club regarding regulatory oversight. The statement signaled support for regulated prediction market structures.
On April 21, New York's attorney general filed lawsuits against Coinbase Financial Markets and Gemini Titan alleging state gambling violations. The complaint asserts that prediction markets operated by the entities breach state gambling prohibitions.
On April 24 2026, federal court filings initiated litigation in US District Court regarding prediction market regulatory authority. The action marks an escalating jurisdictional clash over platform oversight.
On Feb. 25, the Commodity Futures Trading Commission declared full authority to police illegal trading practices on designated contract markets. The agency announced its enforcement stance following market reports concerning potential insider trading activity.
On April 28 2026, the Commodity Futures Trading Commission filed a federal lawsuit against the state of Wisconsin. The agency action seeks to assert federal preemption over state level regulatory actions.
On May 12, the Commodity Futures Trading Commission filed an amicus brief reaffirming exclusive federal jurisdiction over prediction markets. The submission defends federal preemption against state enforcement actions.
On April 30 2026, the United States Senate voted unanimously to ban members and staffers from trading on prediction markets. The vote established institutional restrictions on legislative personnel participating in event contracts.
On May 26, a proposed CFTC rule governing prediction markets entered executive regulatory review. The submission represents a formal administrative step toward establishing updated federal rules.
On June 18, the Chicago Mercantile Exchange sued the Commodity Futures Trading Commission. The legal challenge disputes regulatory decisions surrounding prediction market contract approvals.
On July 27, the CFTC comment window on proposed prediction market rules closes. The deadline marks the conclusion of public feedback on the agency rulemaking proposal.
On August 3 to 7, the Senate enters its final legislative week before recess after skipping the CLARITY Act. Polymarket passage odds sit at 32%.
On Oct. 10. Kalshi secured $300M in funding at a $5B valuation. The capital raise was reported by The New York Times following expanded market activity.
On September 3, Polymarket founder Shayne Coplan announced CFTC approval for the platform to operate in the US. The statement confirmed regulatory clearance for decentralized event contract operations.
Polymarket traders cut CLARITY Act passage odds to 32% by Dec. 31, down from an 82% peak on Feb. 19. The probability decline reflects a narrowing Senate legislative calendar.

Octans View

Parallel federal expansion and state friction define the regulatory trajectory. Federal regulatory filings show the CFTC asserting exclusive jurisdiction over event platforms while state authorities initiate independent gambling enforcement actions.

Bear Case · Room for Disagreement

The largest financial transaction logged in this reference tracker is Kalshi's $300M capital raise at a $5B valuation. Market probability metrics like the 82% peak legislative passage likelihood reflect trading sentiment rather than binding statutory outcomes. Per the Octans Research market feed, this summary aggregates 16 actions and omits non public settlement discussions, informal regulatory inquiries, or state cease and desist orders that have not appeared in public court dockets.

Sources

[1]financefeeds.com — CFTC Prediction Market Rules: Comments Close July 27. The CFTC's comment window on prediction market rules closes Monday.
[2]pymnts.com — A proposed rule for prediction markets submitted Tuesday (May 26) by the Commodity Futures Trading Commission (CFTC) is undergoing a regulatory review by
[3]financefeeds.com — On April 13, 2026, Commodity Futures Trading Commission (CFTC) Chairman Rostin Behnam delivered a landmark address at the National Press Club, signaling a
[4]financefeeds.com — In a historic move to safeguard institutional integrity, the United States Senate voted unanimously on Thursday, April 30, 2026, to ban its members, staffers,
[5]crowdfundinsider.com — Filed on April 24, 2026, in the US District
[6]finance.yahoo.com — June 18 (Reuters) - The Chicago Mercantile Exchange sued the U.
[7]pymnts.com — The Commodity Futures Trading Commission (CFTC) said Wednesday (Feb. 25) that it has full authority to police illegal trading practices on designated
[8]pymnts.com — Prediction market Kalshi said Tuesday (March 17) that a lawsuit filed by the Arizona attorney general is meritless and that the company looks forward to
[9]benzinga.com — Shayne Coplan, founder of decentralized prediction platform Polymarket, said Wednesday, September 3, that the Commodity Futures Trading Commission has approved the platform's operation in the U.S.
[10]finance.yahoo.com — Kalshi, the U.S.-regulated prediction market, has raised $300 million in new funding at a valuation of $5 billion, The New York Times reported on Oct. 10.
[11]financefeeds.com — On March 23, 2026, U.S.
[12]finance.yahoo.com — NEW YORK, April 21 (Reuters) - New York's attorney general sued Coinbase Financial Markets and Gemini Titan on Tuesday, claiming their prediction markets violate state laws against illegal gambling.
[13]pymnts.com — The Commodity Futures Trading Commission (CFTC) filed an amicus brief Tuesday (May 12) reaffirming its exclusive jurisdiction over prediction markets.
[14]financefeeds.com — The Senate skipped the CLARITY Act this week, leaving August 3-7 as the last full legislative week before recess. Polymarket passage odds sit at 32%.
[15]financefeeds.com — Commodity Futures Trading Commission (CFTC) officially filed a federal lawsuit against the state of Wisconsin on Tuesday, April 28, 2026.
[16]financefeeds.com — Polymarket traders cut Clarity Act passage odds to 32% by Dec. 31, down from an 82% peak on Feb. 19 as the Senate calendar narrows.

Every figure above traces to a listed source, and no report publishes without at least three independent publishers. How we verify. Found an error? Tell us and we correct it in public.

$300M

Kalshi secured $300M in funding at a $5B valuation · What we know