Hunter Guo had a plan. The 20-year-old King’s College London student placed roughly $35,000 worth of bets on Polymarket, wagering that the company Strategy would sell Bitcoin. He was going to buy a Porsche with the winnings.

Instead, he got a lesson in reading the fine print.

What happened

Guo’s contracts were tied to whether Strategy, the publicly traded company formerly known as MicroStrategy, would sell Bitcoin. Strategy did, in fact, disclose a Bitcoin sale on June 1, covering activity from the prior week.

Here’s the thing. Polymarket ruled that the disclosure missed the contract’s cutoff time of 11:59 p.m. ET on May 31. The sale happened. The announcement happened. But the clock said no.