Why the Polymarket "MicroStrategy Sells Bitcoin by May 31, 2026" Market Is So Controversial

One of the most disputed Polymarket prediction markets at the moment is "Will MicroStrategy (Strategy) sell any Bitcoin by May 31, 2026?" Despite evidence that the company sold Bitcoin during the specified period, the market is currently expected to resolve "No," leaving many traders confused and frustrated.

The market has already gone through multiple disputes. Two proposed resolutions have both concluded with "No," and the market is now awaiting a final review.

Why Many Traders Believe the Correct Answer Is "Yes"

The controversy began after Strategy disclosed in an SEC filing that it had sold 32 BTC between May 26 and May 31, 2026.

On the surface, this appears to satisfy the market's condition. The market description states:

"This market will resolve to Yes if MicroStrategy sells any of its Bitcoin by 11:59 p.m. ET on May 31, 2026."

Since the sale occurred within that time window, many participants naturally assumed the market should resolve to Yes.

The Key Issue: When the Sale Was Confirmed

The confusion comes from additional resolution criteria that many traders either overlooked or argue were added after the market launched.

The market specifies that its primary resolution sources are:

• Official information from Strategy (formerly MicroStrategy)
• On-chain data
• A consensus of credible reporting

It also includes an important clarification:

"Confirmation achieved outside of the market's time frame does not qualify."

This is where the dispute begins.

Although the Bitcoin sale took place before May 31, Strategy did not publicly disclose the transaction until June 1, 2026, when it filed an SEC Form 8-K. The filing announced that the company had sold 32 BTC during the period from May 26 through May 31.

Because the confirmation itself arrived after the market deadline, Polymarket currently appears to interpret the market as resolving No, even though the underlying transaction occurred before the cutoff.

Why Traders Are Upset

Many users argue that the market title and primary description strongly imply that the timing of the sale itself should determine the outcome—not the timing of its public disclosure.

Others point to the additional sentence regarding confirmation and argue that it fundamentally changes how the market should be interpreted.

Some members of the community have also suggested that this clarification may have been added after the market was created. While the market description shows it was updated after launch, it remains unclear exactly when the sentence regarding confirmation timing was introduced.

As of now, there has been no official public explanation from Polymarket addressing these concerns.

A Tool to Monitor Polymarket Opportunities

For traders interested in following Polymarket markets more closely, there are several open-source tools available. One example is the Polymarket Arbitrage Trading Bot, an open-source project that monitors Polymarket markets and identifies potential arbitrage opportunities using the platform's Central Limit Order Book (CLOB) API. It is intended for educational and research purposes and can be found on GitHub:

Polymarket Arbitrage Trading Bot (GitHub).

Waiting for the Final Review

The market remains under final review after multiple disputes.

If Polymarket maintains its current interpretation, the market will resolve No, based on the fact that official confirmation of the sale occurred on June 1 rather than by the May 31 deadline.

If reviewers instead focus on the actual date of the Bitcoin transaction, the market could still resolve Yes.

Until Polymarket issues its final decision—or provides further clarification—the market remains one of the platform's most controversial prediction markets, highlighting how seemingly small differences in resolution wording can have significant financial consequences for traders.