Prediction markets are failing their democratic premise. The numbers are brutal: over 70% of Polymarket users lose money, while 0.1% of accounts capture 67% of profits. On Kalshi, there are nearly three losers for every winner. These aren't gambling platforms; they're extraction engines.
The rot is insider trading. Analysis of Polymarket found bets on military actions had a 52% win rate, compared to 14% for the platform overall. A Venezuelan army sergeant allegedly pocketed $400,000 betting on the capture of President Nicolas Maduro. French weather sensors showed suspicious temperature spikes coinciding with betting surges.
"Betrayal is the new alpha. Market integrity is crumbling as 'information advantages' look increasingly like federal crimes."
- Kevin Roose, Hard Fork
On Breaking Points, Saagar Enjeti argues the platforms function exactly like casinos. Professional traders use algorithms to poach arbitrage from amateurs treating political events like sports parlays. The sharks eat the small fish before the event concludes.
Regulators are fighting over the carcass. The CFTC is suing states that try to ban prediction markets, claiming exclusive regulatory jurisdiction. Yet it simultaneously resists imposing full oversight, creating a regulatory vacuum. Brazil has blocked 27 sites, including Kalshi and Polymarket, following similar bans in France and Hungary.
"Without a 'big bad regulator' like the SEC to surveil these platforms, they will remain casinos for insiders rather than tools for truth."
- Casey Newton, Hard Fork
The house always wins. It’s just a very small house.

