Thailand held legislative elections on February 8, 2026. On March 18, 2026, the Constitutional Court of Thailand accepted a petition to rule on the constitutionality of barcodes and QR codes on ballots and whether they undermined ballot secrecy.

This market will resolve to “Yes” if the Constitutional Court of Thailand issues a ruling that invalidates the results of the 2026 Thai legislative elections by June 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.

A ruling is defined as any written order, judgment, opinion, decision, or summary ruling from the Constitutional Court of Thailand that declares the results of the February 8, 2026, general election void, invalid, or nullified.

This market will resolve upon the issuance of the first qualifying ruling by the specified court on the matter. Only this initial ruling will be considered for resolution, and any subsequent rulings, appeals, clarifications, rehearings, or related decisions will not be considered.

The primary resolution source will be official information from the Constitutional Court of Thailand; however, a consensus of credible reporting may also be used.