On 24 September 2026 the New York Attorney General filed a verified petition against QCX LLC, which trades as Polymarket US, pleading eight predicates of illegality under Executive Law § 63(12) drawn from the state Constitution, the Penal Law, the Racing Law and the federal Wire Act. Prokopiev reads the counts one by one and finds the Penal Law predicates strongest, because a $3.01 stake on the Mets fits the statutory definition of gambling on its face — the contested element is 'unlawful', which New York defines as 'not specifically authorized by law', leaving Polymarket to argue that a CFTC designation and an unreviewed self-certification supply that authorization. Preemption therefore decides the case, and the circuits are split: the Third Circuit treated self-certified sports contracts as swaps within the CFTC's exclusive jurisdiction and 'presumptively approved', while the Ninth Circuit held they are not swaps and that Rule 40.11 still bars gaming contracts, and the district court closest to this forum rejected preemption outright. On the authority available in September 2026 a New York court is more likely to reject preemption than accept it, and the author also flags what the petition overreaches on: a Racing Law penalty capped at $5 million that the prayer ignores, a treble-gain fine that has no civil vehicle in a § 63(12) proceeding, and restitution language broad enough to pay winning traders too.

Mention markets — contracts that settle on whether a named person says a specific word, attends an event, or appears somewhere — are the one prediction market category where the outcome is under a single individual's control, and the CFTC's Division of Market Oversight has now said so formally. The guidance treats mention markets as 'presumptively readily susceptible to manipulation' under Core Principle 3 and lays out a four-factor scorecard for Designated Contract Markets: constraints on the controlling individual, exposure to outside pressure, independent verification and public scrutiny, and the robustness of the exchange's own trading controls. Pokorny's read is that the advisory works as a transparency and surveillance filter — keeping low-verifiability markets like a remark on a private phone call off exchanges — but cannot close the central gap. Every control the CFTC contemplates presumes the manipulator has an economic interest or is coordinating with someone who does, while the named individual can just say the words regardless, and the First Amendment blocks any rule reaching them.

Industry-friendly regulators at the CFTC are not merely going easy on prediction markets, they are trying to make it structurally hard for a future, less friendly commission to reverse course. Shaw walks through a proposed rule that gives the CFTC just 10 days to open a public-interest review of a newly listed event contract, then treats the agency's failure to act as affirmative final approval of that contract after 100 days. Because the deemed approval would attach to hundreds of thousands of contracts the commission never touched, the proposal manufactures reliance interests and a 'justification tax' that any future delisting must distinguish, arguably weaponizing the Supreme Court's change-in-position doctrine against regulators. Shaw's focus is procedural rather than the substance of the 'gaming' definitions: the CEA sets no deadline for initiating review, Congress declined to add one where it added a 10-day clock for exchange rules elsewhere in the same section, and a shrinking, DOGE-purged agency cannot plausibly screen 162,000 daily contract listings in 10 days.

A Bocconi law professor reads the transatlantic puzzle at the centre of prediction market regulation: US appeals courts are split on whether event contracts are federally regulated derivatives or state-regulated wagers, with the Third Circuit accepting CFTC jurisdiction in April and the Ninth Circuit rejecting it on August 28. Annunziata shows that EU law already lands where the Ninth Circuit landed, treating a contract on a discrete fact like who wins a match as a wager rather than a financial instrument, which is why Belgium, France, Italy, Poland and Romania have blocked access to the platforms. The classification question is a choice between protecting retail savers and letting them speculate, and it is now before the Supreme Court and the European Commission.

Public evidence can make an outcome knowable before Kalshi records its own determination, and this paper builds a clock for that gap: first decidability, the earliest moment the rules and a source release map to one outcome, and stable decidability, the earliest moment after which that mapping never changes again. The empirical result is an observability finding rather than a claim about markets: across 152,694 historical Kalshi tickers the author recovered current rule text for all 25 pilot identities but no exact or bounded historical rule version and no exact source-release object, leaving zero historically eligible events. A prospective monitoring stack covering three official source programmes across 25 markets is now enrolling.

A Kalshi market doesn't finalize at one clock, and this registered 7+7 study separates the endpoint from the path. Exact public finalization is observed for 7,357,576 of 7,611,594 MVE market objects and 71,657 of 152,694 ordinary markets — yet only 126,806 MVE and 70,979 ordinary tickers have an exact determination-to-endpoint pair. MVE pairs average 9.676 seconds; ordinary pairs average 322.50 seconds and stretch to 7,133. Settlement speed is not one scalar until endpoint, risk set and observation surface are fixed.

In just a few years, prediction markets have gone from obscure tools concentrated in the niche corners of elite policy, academia, intelligence, and analytics communities to rapidly expanding fixtures throughout American economic, political, and cultural life. Roosevelt's Shahrzad Shams maps their embedding into sports, media, and finance — three of the top five US sports leagues now have formal partnerships with prediction market platforms, a quarter of the top 20 media companies integrate their products, and sportsbooks like DraftKings and FanDuel are blurring the line between gambling and trading. Drawing on path dependence theory, she warns that every new partnership narrows the window for meaningful regulation: the longer policymakers wait, the more calcified these arrangements become, and the harder they are to unwind.

Connecticut is the latest state to sue Kalshi, and the pattern is becoming a rout: Nevada, Washington, Michigan, and New York have already cordoned off sports prediction contracts, with New York seeking $36 billion and a court-ordered shutdown. Courts keep rejecting Kalshi's federal preemption defence with the same reasoning — when the product looks like sports betting, states can treat it like sports betting, derivatives wrapper or not. Paige notes the commercial irony: the CFTC keeps intervening on Kalshi's behalf while each state loss shrinks the addressable market its Cantor Fitzgerald institutional channel depends on.

States and Kalshi are warring over whether sports-event contracts are gambling or federally regulated derivatives — and the fight looks headed to the Supreme Court. The Third Circuit sided with Kalshi on CFTC preemption, but the Ninth Circuit, hearing Nevada's challenge, appears poised to create the circuit split that forces the justices to step in. Dieterle walks through the statutory hooks (the 1974 CEA amendments, CFMA 2000, Dodd-Frank) and reads the Court's recent anti-preemption voting patterns to handicap how it would rule — with the major questions doctrine looming as Kalshi's biggest risk.

The CFTC's staff letter makes a novel argument: displaying event contracts in sportsbook odds format (minus 150, plus 200) can itself be a deceptive practice under Rule 180.1, even when every number on screen is accurate. A 60-cent contract and a minus-150 moneyline are the same trade, but the odds format hides the probability, the order book, and who is on the other side. On an exchange, competing traders set the price and the venue takes no position; at a sportsbook, the house writes the line and folds its margin into the number. Regulated exchanges and intermediaries must confirm receipt of the letter by August 31, and enforcement lawyers will know who was told.

Traces prediction markets from Renaissance papal betting through the 2024 election boom, and explains why early attempts like Intrade and Augur failed while Kalshi and Polymarket finally broke through. Covers the saver, gambler, and sharp participant problem at the core of prediction market design, and sketches where the industry is headed: bespoke hedging, perpetual and combinatorial markets, and AI agents.

Compares how the US, UK, EU, and Japan built regulatory pathways for prediction markets while Asian jurisdictions have none. Estimates South Korea forgoes up to $43M in annual tax revenue as $52M flows through offshore platforms into its election markets, and lays out three paths forward: gambling law, derivatives law, or a new third category.

Following the Gabriel Perez insider trading case on Kalshi — where Trump’s teleprompter operator allegedly used advance knowledge of prepared remarks to win over 00,000 — Aaron asks the harder question: who eats the loss when insiders profit? The piece explores the exchange’s rulebook on restitution, the limits of counterparty protection in event contract markets, and parallels with Spotify streaming manipulation where the resolution source itself can be gamed after settlement.

Contrary Research delivers a comprehensive deep dive into the prediction market industry, tracing its history from the Iowa Electronic Markets through Kalshi and Polymarket's current dominance to the latest sportsbook entrants. The piece analyzes business models, regulatory classification debates, and the critical skew in win distribution that distinguishes prediction markets from sports betting.

Analyzes 23 million moneyline trades on Kalshi across major sport leagues and finds two systematic ways market prices fail as probabilities. Calibration is not static: parameters sit near perfect-calibration values mid-contract but depart sharply as expiry approaches, with the final ten minutes producing a step-like Prelec curve consistent with insurance-demand behavior by traders holding losing positions. Cross-game parlays are systematically overpriced relative to the product of their leg prices, with overpricing growing in leg count and a separate market-level markup at the parlay-pricing stage. The practical takeaway: treating prediction-market prices as probabilities requires conditioning on time to expiry and product type, not just price.

Distinguishes between two meanings of 'hedge' — trader/market-making (position offset) and corporate finance (exposure matching) — and argues that prediction markets' contract-first approach creates persistent basis risk for would-be corporate hedgers. Warns that mis-selling mismatched binaries as corporate hedges would hand ammunition to regulators and undermine the CFTC's policy case for event contracts.

Argues that institutional adoption of prediction market event contracts will follow the same path as synthetic risk transfer in credit markets — not through convincing risk managers to hold naked binaries, but through structured product wrappers that plug into existing credit/yield mandates. Traces the €800bn SRT/CLN market as precedent, then presents Marex's April 2026 note tied to Kalshi event contracts (up to $10M, 7% coupon if Nvidia remains largest company) as the first clear signal of this trend.

Day One Law's weekly legal update for crypto builders covers the CFTC's June 10 proposed rules that would narrow the definition of prohibited event contracts to terrorism, gaming (narrowly defined), entirely random events, and specific sports micro-bets. Includes practical compliance guidance for prediction market builders during the 45-day comment period.

A former CME board member who helped negotiate the CFMA 2000 argues for bifurcating prediction market regulation: sports and entertainment betting under state gaming laws, while economically valuable markets (politics, weather, economic releases) stay under CFTC oversight. Makes the case that the all-or-nothing regulatory debate misses a win-win compromise.

Examines Europe's 2018 binary options ban as a regulatory template for US prediction market legislation. Argues the key question is not whether prediction markets should exist but who should have access — retail traders lose money while institutions use them for hedging. Compares ESMA's framework with pending Congressional bills to map what works on both sides of the Atlantic.

The CFTC's recent event contract proposal marks a turning point for prediction markets as a new financial asset class, argues Rashan Colbert. Legal classification will determine whether event contracts develop as gambling products or as legitimate event-risk infrastructure for institutions and protocols. Part one of a planned summer series from the former dYdX and Senate policy lead.

Uses the $292M Kelp DAO rsETH bridge exploit to motivate why crypto-native parametric cover is needed, then compares HIP-4's binary event contract structure to CDS, catastrophe bonds, reinsurance sidecars, and weather derivatives. Argues that when outcome contracts share margin with underlying exposure on the same execution layer, HIP-4 unlocks a market two orders of magnitude larger than current DeFi insurance.

Provides a framework for understanding which prediction market categories can win institutional capital, using variance risk premium analysis to determine where event contracts beat options replication. Situates the current benchmark-building race (election ETFs, corporate event notes, AI capability markets) within the historical pattern of credit and crypto infrastructure formation.

Makes the case that prediction market perpetuals are structurally different from crypto perps because event contracts lack a tradeable underlying, making most implementations liquidation arcades. Argues the winning path is building perps as institutional hedging infrastructure for continuous event-risk management rather than leveraged betting.

Breaks down Hyperliquid's HIP-4 outcome contracts as an onchain options layer rather than just another prediction market, comparing its unified margin engine, fee structure, and token value capture to Polymarket and Kalshi. Maps the design space for credit default swaps, parametric insurance, and futarchy that the primitive unlocks.

DWF Ventures argues prediction markets are evolving into a financial derivatives asset class. The piece analyzes structural barriers to leverage and collateral lending: jump risk, binary valuation and regulatory uncertainty. It surveys emerging solutions including epoch-based fee models, perpetual futures on outcomes and tokenised positions on Solana.

A formal comment to the CFTC's proposed rulemaking on prediction markets, submitted by an HKS researcher. Proposes a four-dimensional framework for classifying event contracts (information structure, manipulation economics, social utility, repugnance), reframes insider trading into three distinct patterns (outcome influence, duty breach, information advantage), and analyzes resolution integrity through three documented Polymarket/Kalshi case studies.

Defense of prediction markets that reframes the moral critique as a critique of capitalism itself. Litvin walks through the standard objections (gambling, insider trading, manipulation, slot-machine durations) and pairs each with a larger-scale analog in traditional finance: the $950M oil ceasefire trades on CME, LIBOR, accredited investor rules, dollar debasement. Argues that the legal line between gambling and investing collapses under scrutiny and that prediction markets are simply a more legible version of dynamics already accepted everywhere else.

ARK Invest sizes the prediction market opportunity at $1-5 trillion medium-term by benchmarking against global OTC derivative volumes. Argues that sports volumes are largely regulatory arbitrage from states without legal online sports betting and that the real disruption lies in event contracts unbundling risk from traditional derivatives, giving retail investors direct exposure to discrete outcomes.

Reframes prediction markets as consumer-wrapped binary options, drawing on the author's OTC commodity derivatives background. Introduces Minsky's 'vega wedge' as the structural overcharge that binary hedgers pay when they replicate via vanilla options (around 4.8% for BTC binaries, 7-20% for gold), and argues prediction markets can undercut that tax in categories with deep volume. Diagnoses what still keeps institutional capital out: no shared Black-Scholes-equivalent pricing language, missing risk infrastructure, and liquidity that remains retail-dominated.

Breaks down the legal fight over whether sports event contracts are "swaps" under the Commodity Exchange Act, which would give the CFTC exclusive jurisdiction and preempt state gambling laws. Courts are split across 19 pending federal lawsuits, with the Third Circuit ruling in Kalshi's favor. The case hinges on how broadly to read two phrases in Dodd-Frank's swap definition and will likely reach the Supreme Court within two years.

Uses Kalshi's "mentions markets" (contracts that pay off if a specific word is said at a press conference) to illustrate a structural problem: prediction markets require crisp binary boundaries, but reality rarely provides them. Disputes over whether Cardi B "performed" at the Super Bowl, whether Zelenskiy "wore a suit," and what counts as a "word" show that platforms need linguists and philosophers as much as traders.

Maps the prediction market landscape as a stack war between crypto rails (Polymarket), regulated rails (Kalshi), and execution wrappers (Coinbase, Robinhood). Argues the sector is stratifying into product archetypes rather than converging on a winner-takes-all outcome, with TradFi incumbents pushing standardized binaries that fit existing market structure.

European regulators face a classification problem: prediction market contracts could be gambling, MiFID II derivatives, or something else entirely, and different Member States treat them differently. Proposes a structured 'Prediction Test' modeled on Malta's Financial Instrument Test for crypto-assets, which would systematically categorize contracts through exclusion to determine which regulatory regime applies.

Congressional Research Service legal sidebar analyzing whether and how insider trading law applies to prediction markets. Walks through SEC Rule 10b-5, CFTC Rule 180.1, the STOCK Act, and Title 18 criminal statutes, then examines the CFTC's February 2026 advisory on two Kalshi enforcement actions. Identifies the core gap: existing law requires breach of a duty, but many prediction market insiders (e.g., a political candidate betting on his own race) may not owe one. Surveys four pending bills in the 119th Congress that would close this gap in different ways.

Written by a former CFTC General Counsel, argues that courts in sports event contract litigation are overlooking the strongest basis for CFTC jurisdiction: the Commodity Exchange Act's 'commonly known to the trade' catchall, which classifies any transaction the derivatives industry calls a swap as one. Since every exchange, broker, and clearinghouse involved treats sports event contracts as swaps, the test resolves the federal preemption question cleanly while preserving state authority over off-exchange sports betting.

Quantifies when prediction markets become structurally cheaper than derivatives for pricing binary institutional risk. Analyzes 87 contracts across 11 categories and finds that high-VRP categories like Bitcoin (4.83%) and elections already cross the displacement threshold, while FOMC markets compressed from a 12 percentage point cost gap to under 2 points between 2024 and 2026. Frames the cost differential as "apparatus rent" paid for constructed dealer infrastructure that event contracts can bypass.

History of U.S. prediction market regulation culminating in the February 2026 jurisdictional standoff between CFTC Chairman Mike Selig and Utah Governor Cox. Park traces the arc from the Iowa Electronic Markets' 1988 no-action letter, through Intrade's 2012 collapse and the binary options fraud era, to Kalshi's court win establishing that 'gaming' does not cover financial contracts on uncertain outcomes. Argues federal preemption under the Commodity Exchange Act will hold against state attorneys general, and that Bitwise's PredictionShares ETF launch marks the point where political event contracts become a mainstream financial product.

A comparative legal analysis of how the United States and the European Union classify event contracts — the standardized binary contracts at the core of prediction markets. On the US side the debate has centered on the CFTC and whether event contracts are commodities, derivatives, or gambling; in Europe the picture fragments further, with member states split between gambling law, financial-instrument regimes, and bespoke regulatory tests. Annunziata and de Arruda map the two regimes against each other, asking what an event contract 'is' in law — and why that answer shapes where prediction markets can operate at all.

Critiques Kalshi's 2025 measles cases market as an example of prediction markets being applied to inappropriate domains. Argues that turning a public health crisis into a speculative instrument is ethically questionable and reflects poorly on the industry's judgment about which events deserve tradeable contracts.

Explains how prediction markets work and debunks the common misconception that market prices equal probabilities. Breaks down why risk-free rates, opportunity costs, and spreads create systematic price deviations from true beliefs.