Polymarket trader disputes MicroStrategy Bitcoin market rules after a 49,695 YES-share bet worth about 35,000 USDC.
A Polymarket trader has challenged the outcome of a MicroStrategy Bitcoin market after a large YES position turned into a loss.
The dispute centers on whether the market asked if Strategy sold Bitcoin by May 31, 2026, or whether that sale also had to be publicly disclosed before the deadline.
Trader Disputes Polymarket Market Rules
The trader said he bought 49,695.76 YES shares for about 35,000 USDC. The position was tied to the market titled, “MicroStrategy sells any Bitcoin by May 31, 2026?”
In a public statement, the trader said he accepted the risk of the bet. However, he argued that risk does not change the written terms of a market.
Official Statement Regarding the Polymarket MicroStrategy Market
I have contacted multiple legal advisors, partners, and people familiar with crypto and prediction market disputes regarding the Polymarket market “MicroStrategy sells any Bitcoin by May 31, 2026?”
I accept that I… pic.twitter.com/sbE6KupXPA
— 0xDinosaur (@0xDinoCrypto) June 2, 2026
He said the rule stated the market would resolve YES if MicroStrategy sold any Bitcoin. According to him, the wording did not clearly require disclosure by May 31.
The trader said a sale date and a filing date are not the same. He also said users should not face new rules after money has been placed.
Strategy Bitcoin Sale Creates Market Dispute
The dispute followed reports that Strategy sold 32 BTC worth about $2.47 million. The sale filing led traders to review the Polymarket market outcome.
The trader said the market should be read as an event-based question. In his view, the key issue was whether a Bitcoin sale happened before May 31.
What was the impact of #Strategy selling 32 $BTC?
It made this guy lose $527K in just one day!
After #Strategy filed that it had sold 32 $BTC($2.47M), trader willo2 saw that the odds of #MicroStrategy selling $BTC before May 31 were still at 80% on #Polymarket.
So he went all… pic.twitter.com/T5Hlvvuxwy
— Lookonchain (@lookonchain) June 2, 2026
He argued that Polymarket should have used clearer wording for a disclosure-based market.
“If Polymarket intended this to be a disclosure-based market, the rule should have said so clearly,” he wrote.
The trader also said ordinary users would read the title in simple terms. He said they would not assume a separate disclosure deadline without clear language.
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The trader said he contacted legal advisors, partners, and people familiar with prediction market disputes. He said he was building legal materials and collecting evidence.
He also said he would pursue the matter through lawful channels. The trader said he was not asking Polymarket for special treatment.
“I am asking for the written rules to be respected,” he wrote. He also asked for the facts to be addressed directly and reviewed fairly.
The case has drawn attention across crypto prediction markets. It shows how market wording can affect traders who place large positions.
Prediction markets rely on clear rules and trusted settlement processes. Traders use those rules when they assess risk and price market outcomes.
The trader said trust depends on whether words mean what they say. He argued that unclear wording can create disputes after major market moves.
Polymarket had not been quoted in the provided statement. The final outcome may depend on the platform’s rules, review process, and related records.