Ninety percent. That's the share of Kalshi's trading volume that comes from sports wagers. Not interest rate bets, not election contracts, not macroeconomic forecasting. Sports wagers. You can say it's a derivative until you're blue in the face. That's still a parlay with a financial license attached.
The legal mess around prediction markets just got louder. On March 12, the CFTC issued a formal notice asking for public comment on event contracts, and the chairman said the agency has "exclusive jurisdiction" over prediction markets as derivatives. Meanwhile, a Tennessee federal judge sided with Kalshi this week, and an Ohio judge ruled the opposite. Massachusetts blocked Kalshi's sports contracts under state gaming law. There are now more than 20 federal lawsuits in play, all circling the same question: is this gambling or finance?
The Answer Is in the Volume
Kalshi wants to be regulated like the Chicago Mercantile Exchange, not like DraftKings. That framing is convenient, because federal derivatives oversight doesn't require age verification at 21, doesn't collect state gambling taxes, and doesn't have the same insider trading rules that state gaming commissions enforce. Sen. Richard Blumenthal called prediction markets "a haven for insider trading, market manipulation, and underage gambling." That's a lot of words, but the core problem is real: a teenager can sign up, bet on a football game, and the platform calls it a commodity swap.
To be fair to the industry: prediction markets did prove useful during elections and COVID for aggregating information fast. That's a genuine thing they do. But useful isn't the same as regulated well, and "useful" doesn't protect someone who loses $3,000 on NFL Sunday with no state consumer protection backstop.
The Blumenthal-Kim bill introduced this week would reverse CFTC preemption, ban contracts on war and death, and push consumer protections back to states. I think that's the right direction. Sports betting was federally banned until 2018, then handed to states, and the state-by-state model at least gives you age limits, tax transparency, and problem gambling hotlines baked into the law. Prediction markets currently have none of that uniformity.
What This Means If You've Used One
If you've already put money on Kalshi or Polymarket, nothing blows up tomorrow. The platforms are still running. But you should treat that money the way you'd treat money at a casino: entertainment budget, not investment strategy. Do not put any money there that you haven't already set aside after your emergency fund is topped up and your 401(k) match is captured. That priority order matters more than any court ruling.
The finance industry has a long track record of wrapping old products in new terminology to escape the rules designed to protect you. Subprime mortgages became "structured credit products." Payday loans became "cash advance apps." Sports gambling is now apparently a "commodity event contract." The rebrand doesn't change what happens when you lose.
My actual position: Congress should pass the Blumenthal-Kim bill, or something close to it, before the Supreme Court hands the CFTC a permanent win on preemption. States have more incentive than federal regulators to protect their residents on gambling because they've been doing it for decades. The CFTC is good at what it does, but its job is derivatives markets, not keeping a twenty-year-old from blowing their rent money on a quarterback's passing yards.
Ninety percent sports volume tells you everything. When the lawyers finally agree on what to call it, the product will still be a bet.
