Bill Miller Says Kalshi Processed $190 Billion in Sports Bets Tax-Free

Bill Miller told a room full of casino executives that Kalshi alone has processed more than $190 billion in sports bets and paid nothing in state taxes.

That number landed at G2E in Las Vegas on Tuesday the way numbers do when they've been held back for maximum effect — slowly, in front of the right audience. Miller, the AGA's president, called prediction markets a generational opponent and a group of well-funded bad actors who had kicked in the back door while the industry was knocking at the front. The room understood what he meant. The question is whether understanding it changes anything.

The casino industry's structural problem at this moment is not that it lacks arguments. It has excellent arguments. The problem is that the companies best positioned to compete with Kalshi and Polymarket have decided not to. MGM and Caesars, the two operators with the deepest Las Vegas footprints, have looked at prediction markets and walked away — not because the business case was weak, but because Nevada regulators made the cost of entry explicit. Hornbuckle said it plainly: the Gaming Control Board told MGM that stretching into sports event contracts in other states would affect its licensing suitability. That conversation ended the analysis.

This is what a regulatory moat looks like from the inside, and it cuts both ways. The same licensing framework that gives MGM nine Strip properties — Bellagio, Aria, the Grand — is the framework that keeps it out of the fastest-growing adjacent market in American gambling. Reeg at Caesars made the same calculation and arrived at the same place, though he added something more uncomfortable: he has seen this before. Daily fantasy sports operated in a gray market before PASPA fell, and the operators who stayed in that gray market had a structural head start when sports betting was legalized. If prediction markets eventually get folded into regulated gambling, the companies that absorbed the regulatory risk early will have built the user base, the liquidity, and the brand recognition that the casino operators chose not to build.

The conventional read on this is that MGM and Caesars are being prudent. I don't think prudence is the right word. Prudence implies the downside risk is the dominant variable. What Hornbuckle and Reeg are actually doing is making a bet on the legal outcome — that federal preemption fails, that the Supreme Court or Congress forces prediction markets into a state-regulated framework where existing licensees have the advantage. That bet may be correct. The CFTC's two rules now sitting at the White House for OIRA review could still shift the jurisdictional ground; the proposed rule classifying event contracts as swaps, if it survives, changes the map entirely. But the Ninth Circuit has already found that federal commodities law does not prevent states from enforcing gambling statutes against prediction market operators, and the Tennessee courts have handed states a similar result. The legal wind is not uniformly blowing the direction casino operators need it to blow.

DraftKings and FanDuel made the opposite calculation. They entered prediction markets while the jurisdictional question was unresolved and absorbed the regulatory ambiguity as a cost of positioning. The G2E panel treated this as recklessness. From where I sit, it looks more like a rational read of which direction the market was moving regardless of how the courts eventually rule.