In brief

Two traders sued Polymarket in New York, alleging it wrongly resolved a market on whether Strategy would sell Bitcoin by May 31 as "No."

Strategy disclosed having sold 32 BTC inside that window, but Polymarket ruled the sale wasn't publicly confirmed in time, which the plaintiffs call a retroactive rule change.

The suit names CEO Shayne Coplan and seeks the $1-per-share payout on the traders' "Yes" shares, plus damages.

Two Polymarket traders are suing the prediction market platform, claiming it rewrote a market's rules after the fact to deny them a winning payout tied to Strategy's Bitcoin sale.William Wood and Thomas Bush filed the complaint in the New York Supreme Court on July 3, naming Polymarket CEO Shayne Coplan and chief marketing officer Matthew Modabber.