Kalshi Hit With Class Action Lawsuit Over Khamenei Market Settlement

TLDR

• A class action lawsuit has been filed against Kalshi challenging how the platform settled a prediction market related to Ali Khamenei’s potential removal as Iranian Supreme Leader.
• Contract holders expected complete $1 payouts following Khamenei’s reported death on Feb. 28, but the platform enforced a previously disclosed “death carveout” provision.
• Trading activity in the market exceeded $54 million; the two primary plaintiffs maintained positions valued at approximately $259.84.
• The platform refunded all trading fees and compensated net losses, maintaining that no participant suffered financial harm, though plaintiffs demand full contractual payments plus additional damages.
• Platform co-founder Tarek Mansour defended the decision, noting the provision was disclosed upfront and aligns with company policy against profiting from death-related outcomes.

Legal action has been initiated against prediction market platform Kalshi through a class action complaint submitted to the US District Court for the Central District of California. At the heart of the dispute is the platform’s settlement methodology for a market questioning “Ali Khamenei out as Supreme Leader?”

Participants in this market were wagering on whether Iran’s Supreme Leader would vacate his position before March 1, 2026. Those purchasing “yes” positions anticipated receiving the complete $1 per share value should the predicted outcome materialize.

Following widespread media coverage reporting Khamenei’s death on Feb. 28, market participants assumed their positions would yield maximum returns.

However, Kalshi implemented what the company terms a “death carveout provision.” Under this mechanism, when a leader’s departure results exclusively from death, market resolution occurs at the final trading price rather than distributing full payments to winning positions.

Legal representatives for the plaintiffs contend this provision was obscured within technical documentation. Their argument centers on the claim that typical traders would not reasonably discover this condition before committing funds.

According to the complaint, the carveout language was “not incorporated into the user-facing rules summary.” The filing further asserts the disclosure method failed to adequately notify any “reasonable consumer.”

The legal documents note that Kalshi subsequently conceded their initial disclosures contained “grammatically ambiguous” language.

While the two identified plaintiffs maintained positions worth roughly $259.84, the overall market generated more than $54 million in trading activity.

Kalshi’s Response to the Lawsuit

Tarek Mansour, co-founder of Kalshi, provided a public statement regarding the controversy via X. He emphasized the platform maintains a longstanding prohibition on markets enabling participants to gain financially from death outcomes.

Kalshi provided full reimbursement for all associated trading fees and compensated net losses connected to the market. According to company statements, every trader was made financially whole.

Mansour additionally recognized opportunities for improvement in how the platform presents rule disclosures to users before position entry.

What Plaintiffs Are Seeking

The refund measures have not satisfied the plaintiffs. Their legal action pursues compensatory damages matching the complete anticipated payout values.

Additionally, they seek punitive damages intended to prevent comparable practices going forward.

The complaint characterizes the carveout mechanism as “predatory” and constituting an “unfair business practice,” noting that with an 85-year-old leader amid escalating military tensions, death represented the most probable scenario.

The company recently completed a funding round establishing an $11 billion valuation. This milestone arrived as prediction markets experience unprecedented trading volumes throughout 2026.

The post Kalshi Hit With Class Action Lawsuit Over Khamenei Market Settlement appeared first on Blockonomi.