Iran leadership change by December 31: the evidence and conditions to watch

What this event actually asks

The useful question is precise: Iran leadership change by December 31? In the API observation at 09:57 UTC on 2026-10-04, the selected contract’s first listed outcome was priced at 11.5%. The parent event had recorded $26,743,989 in cumulative volume. This is turnover across the event, not a count of independent forecasters or proof that this outcome is correctly priced. ^[1][2]

The Yes condition is that the Supreme Leader of Iran, Mojtaba Khamenei, ceases to be the de facto leader of Iran at least once during the interval from market creation to the listed date (ET). ^[2]

Changing the leader is different from changing the system

Article 111 of Iran’s Constitution provides for selecting a successor and an interim council after a Supreme Leader’s departure. It is a mechanism for continuity within the existing system. A leadership change therefore need not mean the collapse of the Islamic Republic. ^[3]

This particular market asks whether Mojtaba Khamenei ceases to be the de facto leader during the window, and it separately allows a qualifying announced resignation or removal. Replacing another official, announcing a potential rival or changing a title without the required loss of authority does not establish that condition. ^[2]

Which evidence would change the assessment?

An authenticated official act or independently corroborated transfer of the particular authority named in the contract would strengthen the positive case.

A temporary absence, speculation or a change in a different office does not by itself establish this outcome. However, these rules expressly count a qualifying resignation/removal announcement before the cutoff even when the effective departure is later. ^[2]

The rules distinguish the announcement date from the date a decision takes effect. ^[2]

The next useful checkpoint

Written-rule date: December 31 (ET). The selected contract and any reporting grace period govern settlement. ^[2]

Our reading is conditional: compare the next primary record with the exact threshold above, then revisit the case if the evidence contradicts it. A high quoted chance does not establish certainty; a low quote does not make the event impossible. The value of the article is a clearer test of the claim, not an asserted trading advantage.