Last mentioned: Mar 26, 2026
State Court Hearing
Potential date for arguments regarding the classification of prediction markets as gambling.
PREDICT Act Introduction
Reps. Budzinski and Smith officially introduce the PREDICT Act in the House.
Platform Self-Regulation
Polymarket and Kalshi unveil new internal measures to thwart insider trading.
Senate Bill Introduced
Sens. Curtis and Schiff introduce legislation to ban sports betting on prediction markets.
Self-Policing Debate
Lawmakers express public concern over the ethics of participating in markets they can influence.
Utah Legal Filing
Utah initiates legal action against prediction markets citing constitutional gambling bans.
Anticipated Injunction Filing
Expected window for Nevada regulators to file for a temporary restraining order.
Ohio Court Loss
Kalshi suffers a legal setback in Ohio over sports betting classifications.
Valuation Surge
Reports emerge that Kalshi and Polymarket are targeting $20B valuations.
Federal Remand Ruling
Judge sends Nevada's cases against Kalshi and Polymarket back to state court.
Kalshi Federal Victory
U.S. court rules Kalshi can offer election-related event contracts.
Judicial Turning Point
A federal judge rules that the CFTC exceeded its authority in blocking Kalshi's election markets.
CFTC Rejects Kalshi
The CFTC denies Kalshi's proposal to list contracts on which party will control Congress.
STOCK Act Signed
Legislation passed to prevent members of Congress from trading stocks on non-public information.
Bipartisan lawmakers have introduced the PREDICT Act to prohibit federal officials, including the President and members of Congress, from trading on prediction markets. The legislation aims to prevent the exploitation of non-public information regarding policy decisions and geopolitical events.
Leading prediction platforms Kalshi and Polymarket have introduced comprehensive new policies to prohibit insider trading, signaling a major shift toward institutional-grade compliance. These measures aim to protect market integrity and satisfy mounting regulatory pressure following the explosive growth of event-based wagering.
Leading prediction platforms Kalshi and Polymarket have implemented strict new prohibitions on insider trading to bolster market integrity. The self-regulatory move comes as U.S. senators introduce legislation aimed at curbing the influence and operation of event-based betting markets.
Arizona Attorney General Kris Mayes has initiated criminal proceedings against Kalshi, marking a significant escalation in state-level opposition to event-based prediction markets. The move challenges the federal oversight of the Commodity Futures Trading Commission (CFTC) and could redefine the legal boundary between financial derivatives and illegal gambling.
As prediction markets for political outcomes experience unprecedented growth, U.S. lawmakers are facing mounting pressure to establish self-policing mechanisms. The intersection of legislative influence and financial stakes in election outcomes has created a regulatory vacuum that challenges existing ethics frameworks.
California legislators have introduced a bill to prohibit wagering on geopolitical conflicts and acts of terrorism, targeting the growing popularity of prediction markets. The move sets a significant regulatory precedent for event-based contracts that profit from human suffering and global instability.
Utah has initiated a legal challenge against prediction platforms Kalshi and Polymarket, citing the state's strict constitutional ban on all forms of gambling. The conflict marks a significant escalation in state-level resistance to the rapidly growing 'event contract' industry.
State authorities are intensifying scrutiny of prediction markets Kalshi and Polymarket, alleging that their sports-related event contracts constitute unlicensed sports betting. This regulatory pushback threatens to disrupt the expansion of federally regulated and decentralized prediction platforms into the lucrative sports wagering market.
A federal judge has remanded Nevada's legal challenges against prediction markets Kalshi and Polymarket back to state court, enabling state regulators to pursue temporary injunctions. The ruling intensifies regulatory pressure on event-driven trading platforms amid concerns over market integrity and potential insider activity.
A $529 million trading surge on Polymarket regarding military strikes in Iran has triggered intense scrutiny after blockchain analytics revealed suspicious, highly profitable bets from new wallets. The incident highlights a critical regulatory gap in monitoring decentralized prediction markets for potential insider trading based on geopolitical intelligence.
This page surfaces every story mentioning Polymarket across our legal coverage. We track each entity's appearance over time so readers can trace how the narrative evolves — which developments are isolated incidents, which build into longer arcs, and which reframe how operators in the space think about the entity. Story selection uses the same multi-source verification gate applied across the rest of our coverage.
Read our editorial methodology for how we identify, deduplicate, and score entity references. Our glossary defines the technical terms used across stories on this page, and our trends index contextualizes individual developments against the longer-running legal beat. Cross-entity comparisons live on our compare view.
| What you see | What it tells you |
|---|---|
| Story count | Number of distinct stories where Polymarket was a primary or referenced actor. |
| Recency clustering | Whether mentions are concentrated in a recent window (a news cycle) or distributed (a sustained arc). |
| Sentiment distribution | Aggregate sentiment of the stories mentioning this entity, weighted by impact score. |
| Cross-niche links | When the same entity surfaces in our sibling networks, we link to those views to enrich context. |