Strategy sold bitcoin in late May, and told the market in June. Here's how Polymarket bettors are fighting over when it counts.

Here's how Polymarket bettors are fighting over when it counts.A $79 million market hinges not on whether Michael Saylor's firm sold bitcoin, but on whether a sale disclosed June 1 can count toward a deadline that passed May 31.By Sam Reynolds, AI Boost|Edited by Shaurya Malwa Jun 2, 2026, 5:00 a.m. 4 min read Make preferred on What to know: A $79 million Polymarket bet on whether Strategy (MSTR) sold bitcoin by May 31 hinges on whether the contract is governed by the date of the sale itself or the later date of its public disclosure.One camp argues the market is event-based and should resolve “Yes” because Strategy’s own filing dates the 32 BTC sale inside the window, while another insists only information knowable by the May 31 deadline counts and therefore the market must resolve “No.”A smaller group says the rules were too vague to resolve at all, even as Polymarket has since endorsed the “No” interpretation, leaving the final decision to UMA token holders, who have previously diverged from the platform.The Polymarket contract asked a simple question: did Strategy (MSTR) sell any bitcoin by May 31? The company's filing says it sold 32 BTC between May 26 and 31. The filing came out June 1. That gap has split bettors into a $79 million fight over whether a sale counts when it happens, or when it's confirmed.

The dispute turns on a single ambiguity: the rules ask whether Strategy sold bitcoin "by 11:59 PM ET" on May 31, but they don't say whether that means the sale must have occurred by then or been confirmed by then.

Strategy executed the trades between May 26 and 31 and dated the activity "as of May 31, 2026, 4:00 p.m. Eastern Time" — inside the window. But the 8-K disclosing them wasn't filed until June 1, after the market closed. So the sale date falls before the deadline; the filing date falls after it. Which one governs is the whole fight.