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Khamenei’s killing spurs outrage among Kalshi and Polymarket users over claims of rigged markets and insider trading

First came the bets. Then came the bombs. Now comes the outrage.

On Saturday, while many Americans were waking up to news of US and Israeli strikes on Iran, some were betting money on what would happen next — and expressing confusion and anger over what was happening on prediction markets like Kalshi and Polymarket.

The market-surveillance software company Bubblemaps said Saturday morning it had identified several new cryptocurrency wallets connected to Polymarket that collectively made over $1.2 million related to strikes on Iran.

Meanwhile, hours after the strikes began, Kalshi posted on X about the volatility in markets related to the ousting of Iranian Supreme Leader Ali Khamenei.

On Polymarket, at least $200 million was staked on four wagers related to US strikes on Iran, regime change, or Khamenei’s death. Kalshi, which is more regulated and barred by US law from offering markets related to war and assassination, recorded almost $55 million in contracts related to whether or not Khamenei would be “out” in the next several months before activity in those markets was halted on Saturday afternoon.

The drip-drip of news and ambiguities in the contractual language on Kalshi and Polymarket led some users to think they had an edge as the day progressed. But several expressed outrage at the processing of their bets — or “trades,” as Kalshi calls them.

“Robbery. This platform is terrible,” wrote one Kalshi user, who posted an image showing a loss of $11.25 on a long-shot bet on Khamenei’s ouster.

While Kalshi only lists seven open markets on its “Iran” page, Polymarket had 187 Iran-related markets open as of Sunday morning, many with very little trading volume.

One that has since closed asked whether the US would “forcibly remove” Khamenei by March 31. Polymarket posted a “clarification” that the market resolved to “no” because the US had “merely contribute[d] to or assist[ed]” in the killing of Khamenei.

Some commenters urged that the outcome be disputed. Polymarket, where activity is logged on the Polygon blockchain, has a complex, decentralized resolution mechanism for many of its markets.

Markets that hinge partly on death are among the most controversial ones offered on prediction markets because they could create financial incentives for killing. In Israel, several people were reportedly arrested, and at least two were indicted in February based on their use of military secrets to make Polymarket bets.

In late February, six Democratic senators asked the Commodity Futures Trading Commission, which has emerged as the main regulator of US prediction markets, to take action against contracts that “incentivize physical injury or death,” citing several Polymarket contracts and not mentioning Kalshi.

Chris Murphy, another Democratic senator, said this weekend on X that he would introduce legislation “ASAP” to prevent “people around Trump” from “profiting off war.”

By the end of Saturday, Kalshi co-founder Tarek Mansour posted on X that bets on Khamenei’s ouster would be paid out for their value the minute before Israel and the US reportedly struck Iran. Users who bought contracts after that point would be partly reimbursed, he said.

Some people protested or expressed confusion over how their positions would resolve. Others were supportive of Kalshi’s decisions.

“90% of you never read any rules and are mad at Kalshi because you couldn’t make money off your lil $10,” one user said in the comment section on Kalshi. “Get a grip, start reading rules.”

Representatives for Kalshi and Polymarket didn’t immediately respond to questions sent by email on Sunday morning.

Have a tip? Know more? Reach Jack Newsham via email (jnewsham@businessinsider.com) or via Signal (+1-314-971-1627). Use a personal email address, a nonwork device, and nonwork WiFi; here’s our guide to sharing information securely.




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Satellite-photos-capture-devastation-at-Iranian-Supreme-Leader-Khameneis-residence.jpeg

Satellite photos capture devastation at Iranian Supreme Leader Khamenei’s residence after US and Israeli strikes

Satellite images captured after Saturday’s US and Israeli strikes on Tehran show that the residence of Iran’s supreme leader, Ayatollah Ali Khamenei, sustained severe damage.

The photos, provided to Business Insider by Airbus, show several collapsed buildings inside a compound in Tehran, which is known to be one of Khamenei’s main residences.

It’s unclear if the Iranian leader was present at the time of the strikes, though the US, Israel, and Iran all said that he was killed on Saturday.

It’s also not yet clear if it was Israel or the US that carried out this particular strike. Representatives for the Pentagon and Israel Defense Forces declined to comment on the hit when asked by Business Insider.


The burning roofs of several buildings can be seen in this satellite image over Tehran.

A cropped photo of the Leadership House in Tehran after the Saturday strikes.

Pléiades Neo (c) Airbus DS 2026



One of the heavily damaged buildings in the compound, at the bottom left of the image, is the House of Leadership, which is known as Khamenei’s office and principal place of residence.

In the images, smoke appears to be rising from its roof. Much of the compound has been obliterated, with felled trees and several more smoking buildings.

The large structure to the right of the compound is the Imam Khomeini Hussainia, a place of worship used by Iranian leaders for religious ceremonies and political speeches.

It’s unclear whether this larger building was also attacked, but what looks like debris can be seen on its roof.

A satellite image taken a year earlier shows the complex included at least six buildings, all of which are now damaged by the strikes.


An image taken in February 2025 shows an overhead view of the Leadership House.

This image from February 28, 2025, shows the complex a year before the strike.

Screenshot/Google Earth



A wider-angle view from another satellite image taken on Saturday appears to show that the strike was largely confined to Khamenei’s compound, which is located in the heart of the Iranian capital.


Ruined buildings can be seen in this wider shot of Khamenei's compound in Tehran.

Smoke rises from Khamenei’s residence in a wider shot of the compound.

Pléiades Neo (c) Airbus DS 2026



The compound’s neighboring buildings appear to be intact.


A wider shot of the Tehran neighborhood shows the Leadership House complex last year.

This Google Earth image was taken on February 28 in 2025.

Screenshot/Google Earth



In a video address after the attacks began, President Donald Trump told Iranians to “take over your government.”

“It will be yours to take. This will be, probably, your only chance for generations,” Trump said.

The US and Israel began their attacks on Saturday morning local time, hitting Tehran and several other Iranian cities in what has been one of the largest strike campaigns in recent years.

The full outcomes of these strikes are still being assessed, and much remains unclear about Tel Aviv and Washington’s exact objectives behind the attacks.

Meanwhile, Iran has responded by firing dozens of ballistic missiles and drones at its neighbors, saying it is targeting US military bases.

Khamenei had been in power in Iran for almost 40 years as a powerful religious leader in Shia Islam, becoming the country’s ultimate authority in government and the military.

It remains to be seen how his death will impact the fate of Iran’s military, society, and government structure.

February 28, 2026: This story was updated to reflect the death of Khamenei, as confirmed by the US, Israel, and Iran.




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