The House Edge – Regulatory Pressure Heats Up in Prediction Markets

What the house knows. Occasionally.

Issue #04 | June 21, 2026

THE LEAD

At the Jefferies Nantucket Consumer Conference this week, DraftKings, Flutter, and RSI all told the same story: World Cup is fine, but the NFL season is the buildout they’re actually racing toward. DraftKings wants “additional prediction-related updates” before September. Flutter is trying to reach its entire customer base with PM products before kickoff. RSI — which said in February it had no interest in the space — filed for a PM license last month as a “prospective hedge.” Every major operator now believes sitting out prediction markets is more dangerous than participating. The NFL season is when that bet gets sized.


THE BOOK

US iGaming, Sports Betting & Prediction Markets

  • The first hard PM number landed, and it’s good. DraftKings’ June 9 8-K: annualized consumer volume on Predictions hit $1.3B in May, up 24% MoM. Total annualized volume (including market-making) hit $3.1B, +34% MoM. Stock jumped 11% — biggest single-day gain in 3.5 years. More importantly, the bear case that PM volume cannibalizes OSB handle didn’t show up in the data: both are growing simultaneously during the World Cup. Flutter’s FanDuel Predicts is rolling out more gradually; DraftKings’ head start through this tournament matters if habit formation is sticky.
  • Nantucket operator-by-operator. Jefferies analyst David Katz: companies “highlighted early progress on predictions, alongside a focus on market making, which we view as widening the range of outcomes.”
    • DraftKings: PM customer acquisition costs should get “more efficient across all 50 states” as PM data builds. World Cup explicitly downplayed as an acquisition tool — it’s a lead-in to the NFL. The real prize is a national customer data set that doesn’t exist in state-licensed OSB.
    • Flutter/FanDuel: Focus on combo markets (“structural barriers persist for complex products”) and market-making as the most important silo. World Cup is a “modest lift” but “earnings impact remains contingent on event outcomes” — i.e., it’s hold-dependent, not structural. Loyalty program covering entire customer base before NFL.
    • RSI: PM license filed as a hedge. iGaming targets: Virginia, New York, Illinois, Maryland. World Cup mostly a Colombia story; North America is “incremental positive.”
    • Sportradar: World Cup a “key catalyst” for trading services despite lacking data rights to the tournament. Bullish on PM data/market-making infrastructure long-term; meaningful monetization “not until 2029.”
  • The PM fight is now a four-front war. Courts, Congress, CFTC rulemaking, and operators building regardless — all moving simultaneously this week. On the courts: the 6th Circuit denied CFTC’s motion to appear as amicus in Kalshi v. Ohio (oral arguments July 30), without explanation — a procedural setback for a regulator that’s been loudly backing Kalshi’s preemption claim. More damaging: former CFTC Chairman Gary Gensler filed an amicus brief against the current CFTC’s position, arguing Congress “didn’t intend for the CFTC to become a nationwide sports betting regulator” when drafting Dodd-Frank. A former chair providing the opposition’s institutional counter-narrative is unusual. The 9th Circuit is still out on Nevada (district court refused to grant Kalshi a preliminary injunction — opposite of the 3rd Circuit’s NJ ruling). NJ is now seeking SCOTUS cert on the 3rd Circuit decision. A 9th Circuit affirmation of Nevada = confirmed circuit split = Supreme Court’s desk. August 1 (Minnesota felony law) is the near-term forcing event; SCOTUS cert is the cleaner resolution timeline. On Congress: AGA, the Indian Gaming Association, and AGEM sent a letter to the Senate on June 17 pushing for an outright ban on sports event contracts. Their framing: platforms are “offering nationwide sports betting through so-called ‘sports event contracts’ and branding it as a federally regulated financial product,” bypassing “state and tribal law, weakened consumer protections, and undercut a system built on local control.” The tribal angle matters — IGA’s inclusion brings Congressional relationships that AGA alone doesn’t have. This is the third escalation letter from industry groups this year (January, May, June), each broader in coalition. The vehicle is the CLARITY Act (digital asset market structure bill), but standalone ban language is also in play. On state taxation: Kentucky enacted a 14.25% excise tax on PM operators’ transaction fees in April — the first state to try taxing rather than banning. Kalshi, Polymarket, and Crypto.com filed suit to block it on June 13 through the “Coalition for Fair Markets,” arguing the tax is discriminatory (it’s higher than Kentucky’s 9.75% horse track wager tax), unconstitutional, and — critically — preempted by federal law. That last argument is the one to watch: the PM platforms are contending that CFTC preemption bars not just state bans but state taxes on federally regulated exchanges. If that argument wins, it voids the Illinois model too (Issue #02: Illinois’s 1.75% tax on sports event contracts as a middle-ground alternative to banning). The integrity dimension is also surfacing more visibly: the Kentucky article references former Congressman George Santos under investigation for betting on his own congressional attendance, and a U.S. Army soldier charged with using classified information for a $400K Polymarket profit on the Venezuela military operations timing. Those incidents give state legislators political cover to keep fighting even after losing preemption cases.
  • ProphetX becomes the first sports-native federal exchange. The CFTC approved ProphetX as a direct-clearing prediction market exchange focused on sports-based event contracts — fully federal-compliant from day one, not seeking clearance through the swap-contract loophole. Validates the CFTC’s June rule proposal (which would explicitly permit certain sports event contracts) as a working framework, not just a policy statement.
  • State enforcement is hardening on OSB. Michigan’s MGCB issued nearly 100 cease-and-desist letters against offshore operators this year, presenting the strategy at NAGRA. The same framing — illegal operators as a direct threat to licensed market economics — will eventually be applied to PMs if the preemption argument fails in court.
  • iGaming timeline: 2027, same four states. Flutter and RSI both called Virginia, New York, Illinois, Maryland as the next wave. No new launches in 2026.

So what? The DKNG 8-K changes the setup — first evidence PM growth isn’t purely substitution. If the additive thesis holds through the NFL season, the PM bear case gets harder to sustain politically. RSI’s reversal confirms operator FOMO is real and self-reinforcing. On the legal side, the Kentucky suit is the development that matters most structurally. States moved from banning to taxing as Plan B — and PM platforms are now contending that CFTC preemption blocks taxes too. If that holds, states have essentially no regulatory lever short of a Congressional ban. The integrity incidents give legislators the political hook to keep pushing even after losing in circuit courts. Gensler’s amicus brief is the most credible legal counter-argument, but the Kentucky tax case may end up mattering more — because it tests whether states can capture any economic benefit from PM activity at all. If not, Congressional action becomes the only path, which is a longer timeline but a more binary outcome.


THE ORIENT

Macau & Asia

  • The World Cup paradox: record visitor pace, GGR down 20%. Macau hit 20M visitors for 2026 as of June 20 — 18 days ahead of the 2025 pace, +10.2% YoY. MGTO is projecting 41M total arrivals for the year. At the same time, Citi estimates the GGR daily run rate fell to ~MOP586M in the week ended June 14: down 20% from May’s MOP729M/day average and 16% below the first week of June. Citi is holding its June forecast at MOP19B ($2.4B, -10% YoY) — which requires ~MOP625M/day for the rest of the month.
  • Ng Wai Han: from DICJ to Secretary for Economy. Macau’s gaming regulator chief was elevated on June 15 to Secretary for Economy and Finance.
  • Macro backdrop: +7.1% YoY, but 10% below 2019. CE Sam Hou Fai’s address to the Legislative Assembly (same June 17 session) put 1Q26 GDP at MOP107.5B ($13.3B), +7.1% YoY real growth — solid momentum, but total economic output sitting at just 90.3% of 2019 levels. The government will publish Macau’s Third Five-Year Plan in August, organized around seven priority areas including national security and economic diversification.
  • China enforcement tightens around the World Cup. RedNote (Xiaohongshu) removed 65,000 gambling-related posts. Xi pressed Myanmar to maintain action on illegal gambling networks. Beijing’s tolerance for illegal betting activity narrows during high-visibility sports events — historically a medium-term positive for regulated channels.
  • Korea watches Osaka. South Korean operators petitioned regulators for relief specifically to stay competitive against MGM Osaka’s 2030 opening. A real competitive dynamic — premium mass VIP flows from mainland China are the shared customer base — but slow-moving. Japan’s second-round license window doesn’t open until May 2027.
  • 2Q Cotai show tally -42.5% YoY. Shows across Galaxy and Sands’ Cotai venues fell 42.5% in Q2 vs. a year ago, with “mini-residencies” particularly weak. The non-gaming diversification playbook isn’t driving the incremental mass visits operators hoped for.

So what? The underlying recovery is broken — visitation is up but spending down. This means travelers are not spending as much.


THE LOCAL

US Regional

  • Bally’s Chicago: September opening is off the table. The $1.8B permanent riverside casino is not on track for its September 2026 deadline under the host community agreement, and a 2027 opening is now the working assumption. HB 4437 (Rep. Kam Buckner) would extend Bally’s temporary license at the Medinah Temple by six months, with two additional three-month extensions available — keeping the temp casino operational while the permanent build continues. This is a company running three large projects simultaneously: permanent Chicago, Bronx NYC license, and the Evoke/William Hill acquisition. The execution record in Chicago (demolition debris into the Chicago River, IGB-ordered work stoppage over unauthorized waste hauler with alleged organized crime ties) doesn’t inspire confidence on the Bronx timeline.
  • Atlantic City: the first NYC-competition read is coming. Resorts World NYC opened live tables on May 5. May 2026 NJ DGE data — the first month with full NYC table competition — should drop imminently. Watch whether retail casino win at AC properties declines month-over-month while iGaming holds. If iGaming is flat and retail is down, the structural read for AC is exactly what operators have feared: NYC tables pull the proximate gamblers while online retains the convenience players. The June 2026 ECGC conference surfaced the same concern from operators directly.

So what? The NYC/AC dynamic is the one to model: if May NJ data shows retail weakness with iGaming holding, the case for NJ iGaming expansion as a structural AC offset (rather than a growth story) gets stronger — and the tax rate debate in Albany gets more complex.


THE PROJECTS

Global Greenfield & Development Watch

  • Wynn Thailand — Billings confirmed. CEO Craig Billings went on record this week: Wynn is pursuing Thailand IR opportunities. The entertainment complex bill (17% GGR tax, up to 3 licenses) is on the parliamentary calendar for Q3/Q4. Unit economics close at 17% on a $3-5B projected market; formal expressions of interest expected within 60 days of passage. Wynn and Hard Rock are the two most credible first-movers.
  • Genting NYC: “one of our most successful investments.” Lim Kok Thay’s words on Resorts World NYC, which is the only NYC-licensed casino currently generating table game revenue (live since May 5). Hard Rock Metropolitan Park is 5.5 months behind schedule pre-groundbreaking. Bally’s Bronx is still in permitting. Genting’s advantage is real but the ROI thesis still depends on New York iGaming legalization at 30.5% — at 56% slots tax the math doesn’t close.
  • UAE GCGRA gets a permanent CEO. Ciarán Carruthers (ex-Crown Resorts CEO) named to run the UAE’s gaming regulator on June 9. Wynn Al Marjan ($5.1B invested, Spring 2027 opening) is the only licensed property, but a credible regulator with integrated resort experience signals that the licensing framework is being built with a second round in mind.

THE SHIFT

Moves & Shakers

  • Ng Wai Han — DICJ Director → Secretary for Economy and Finance, effective June 15. Biggest gaming governance move in Macau this year.
  • Matt Bekier (former Star CEO) — A$495K fine and six-year director/senior manager ban from Australia’s Federal Court. Failures over Suncity junket relationship and China UnionPay channeling. Star named Ameet Patel dual CEO of Brisbane and Gold Coast as the post-administration rebuild continues.
  • Korean casino operators collectively petitioned for regulatory relief vs. MGM Osaka. No response yet.

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