
Kalshi CEO Tarek Mansour defended the platform’s handling of the controversial “Ali Khamenei out as Supreme Leader?” market after the Iranian Supreme Leader was killed in U.S.-Israeli strikes early Saturday, February 28, 2026. The contract — live since January 9 — generated over $50 million in total volume, including roughly $20 million on Saturday alone, before trading was halted at 2:59 PM ET and formally closed at 10:06 PM ET.
Under CFTC-filed rules, if Khamenei died, the market settled at the last-traded price before death (recorded at 1:14 AM ET) rather than resolving binary “Yes.” Mansour emphasized:
“We don’t list markets directly tied to death. When potential outcomes involve death, we design the rules to prevent people from profiting from death.”
Kalshi announced it is:
The platform issued two clarifications during the day, acknowledging prior settlement language was “grammatically ambiguous” between “prior to the death” (CFTC terms) and “prior to confirmed reporting of death” (market page).
Criticism centered on Kalshi’s promotion: after early reports of the death, Kalshi posted on X “BREAKING: The odds Ali Khamenei is out as Supreme Leader have surged to 68%” — a message Mansour reposted. Former SEC chief of staff Amanda Fischer (now at Better Markets) called it “more or less offering a proxy market on assassination.”
Additional backlash highlighted perceived inconsistency:
Mansour defended the market’s purpose, citing geopolitical, economic, and national security implications of leadership changes — pointing to Venezuela’s recent transition as evidence autocrats can leave power without dying.
The controversy arrives amid intensified scrutiny of prediction markets:
Kalshi has positioned itself as the compliance-forward alternative to Polymarket, which faces parallel criticism over geopolitical markets.
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