When you think about prediction markets, you might picture Polymarket‘s sleek interface or Kalshi‘s regulated contracts. But the modern prediction market definition was written in blood, or at least in the ashes of Intrade, a pioneering platform that collapsed spectacularly in 2013. Understanding what is a prediction market means understanding what went wrong with Intrade, because today’s platforms exist precisely because they learned from those mistakes. This story matters because it explains why prediction market basics now include regulatory compliance and custodial safeguards that didn’t exist fifteen years ago.
The 2003 launch and rise as the dominant US prediction market
Intrade launched in 2003 as an Irish-based platform that let anyone bet on real-world events using binary contracts. You bought shares predicting whether something would happen, and each share paid $10 if you were right or $0 if you were wrong. This is the core of how prediction markets work: prices reflect crowd consensus about probability. If a contract trades at $7, the market thinks there’s a 70% chance that event occurs.
By 2008, Intrade had become the go-to source for election forecasting, often outperforming traditional polls. The wisdom of crowds prediction markets principle seemed vindicated. Thousands of traders, each risking real money, produced forecasts that major news outlets cited daily. Unlike the Iowa Electronic Markets, which capped participation at $500 for research purposes, Intrade allowed unlimited trading. It felt like the future of collective intelligence forecasting.
The 2012 CFTC enforcement action
In 2012, the U.S. Commodity Futures Trading Commission (CFTC) sued Intrade for offering event contracts to American customers without proper registration. The platform operated in what regulators called an “unregulated event-contract gray zone,” a legal limbo that would later define the entire industry’s struggle.
The unregulated event-contract gray zone of 2010-2013
Between 2010 and 2013, no clear rules governed prediction market mechanics in the United States. Intrade argued it was based in Ireland and didn’t need U.S. approval. The CFTC disagreed, classifying event contracts as commodity futures that required federal oversight. Intrade settled by agreeing to block U.S. users, cutting off its largest market overnight. Revenue collapsed, but worse problems lurked beneath.
The 2013 collapse and missing funds
In March 2013, Intrade suddenly shut down. Traders discovered that millions of dollars in customer funds were missing. The platform’s founder had allegedly used customer deposits as collateral for personal trades, a catastrophic breach of trust. This wasn’t just regulatory failure but basic custody failures and trader losses that destroyed the platform’s credibility forever.
Custody failures and trader losses
The missing funds scandal revealed that Intrade never properly segregated customer money from operational accounts. When the founder’s trades went bad, customer deposits vanished. Traders who thought they were participating in binary markets vs scalar markets learned a harder lesson: without custody protections, your balance is just a number on a screen.