Polymarket Users Cry Foul After $85 Million Bet On MicroStrategy’s Bitcoin Sale Goes Wrong

A dispute with greater than $85 million in complete buying and selling quantity at stake has erupted on Polymarket after Strategy Inc. — previously MicroStrategy — confirmed it offered 32 Bitcoin between May 26 and May 31, 2026, just for the prediction market to suggest a “No” decision on the grounds that public affirmation arrived in the future after its acknowledged deadline.

Strategy disclosed the 32 BTC sale — its first reported Bitcoin disposal since December 2022 — in a Form 8-Ok SEC submitting submitted on June 1. The submitting itself timestamps the transaction as “as of May 31, 2026, 4:00 p.m. Eastern Time,” with the sale executed at a median worth of roughly $77,135 per coin throughout a six-day window ending May 31, producing roughly $2.5 million in proceeds directed towards most popular inventory distributions, per the submitting.

The quantity represents roughly 0.0038% of Strategy’s 843,706 BTC treasury — a footnote in scale however a landmark in symbolism, given Michael Saylor’s repeated public declarations that he would by no means promote.

The Core Of The Dispute

The Polymarket market requested an easy query: did MicroStrategy promote any Bitcoin by May 31, 2026? Per Strategy’s personal SEC submitting, the sale ran from May 26 by May 31 — completely inside the window. The downside, per Polymarket’s proposed decision, is that the Form 8-Ok was not filed till June 1.

The platform’s bulletin board acknowledged that no data from MSTR filings, on-chain information, or credible reporting confirmed a Bitcoin sale inside the market’s timeframe, and that “affirmation achieved exterior of the market’s timeframe doesn’t qualify,” per Polymarket’s official market web page.

That framing has generated a livid response from merchants who backed “Yes.” Their argument is equally simple: the market’s language refers to when the sale occurred, not when it was publicly introduced — and the SEC submitting explicitly locations the transaction earlier than the deadline.

Two separate proposed “No” resolutions had been disputed by customers, pushing the end result to a binding vote by UMA token holders, which is anticipated to conclude inside 48 to 96 hours, per Polymarket’s decision guidelines. The market is now pricing “No” at 99.8 cents, per the Polymarket occasion web page you offered.

As amplified by Wu Blockchain (@WuBlockchain) on X, group response has been extreme — with some customers declaring a complete lack of religion within the platform and others warning that an incorrect decision will completely injury Polymarket’s credibility with critical merchants.

A Deeper Problem With The Oracle

The UMA token-voting mechanism on the middle of this dispute carries its personal structural baggage, per a Wall Street Journal investigation published in May. The Journal discovered that in most disputed Polymarket markets, greater than half of UMA voting energy is concentrated within the ten largest wallets.

Approximately 60% of lively UMA voters will be linked to stay Polymarket accounts. And roughly one in 5 disputes has a minimum of one voter with a monetary stake within the contract they’re ruling on — a direct battle of curiosity baked into the system’s design.

Since the beginning of 2026, Polymarket has logged greater than 1,150 disputed markets — already surpassing the full-year 2025 complete, per the Journal’s reporting. The MicroStrategy market is the highest-dollar stay take a look at the platform has confronted for the reason that $237 million Zelenskyy dispute final yr.

This growth marks a vital second for the nascent prediction market sector — and for Polymarket particularly, which is concurrently navigating a proper congressional investigation, two federal insider buying and selling arrests tied to its platform, and now a decision dispute that has uncovered a basic structural query: in a market constructed on transparency, who watches the oracle?

Cover picture from ChatGPT, ETHUSD chart from Tradingview