insider trading

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Kalshi Bestows Its First-Ever Lifetime Ban on George Santos

Expelled congressman sarcastically thanks the prediction market platform

(Newser) - George Santos can boast about this without fibbing: He is the first person ever to receive a lifetime ban from the prediction market platform Kalshi. The company on Monday permanently barred the expelled New York congressman from its platform and hit him with a $71,356 penalty because of his...

Trump's Teleprompter Operator Learns Penalty for Kalshi Bets

Gabriel Perez used inside information

(Newser) - A man whose job ensured he knew the president's next words has to hand over the money he made betting on them. The Commodity Futures Trading Commission on Friday said Gabriel Perez, a technical assistant who has run President Trump's teleprompter since 2016, must pay $172,539 and...

Trump to Sell Early Access to His Social Media Posts

Advance paid peeks on Truth Social are raising concerns over insider trading

(Newser) - President Trump knows the world hangs on his every word—now he wants you to pay for it. His social media posts are going on sale on Saturday, when his Truth Social business begins offering sneak peeks of them to Wall Street traders willing to pay, per the AP . The...

House Passes Stock Trading Ban for Lawmakers

Democrats object to voting ID measure, call bill a 'sham'

(Newser) - House members moved to rein in their own finances Wednesday—while igniting a fresh fight over voting rules. In a 232–198 vote, the chamber approved the Stop Insider Trading Act, which would bar lawmakers, their spouses, and dependent children from buying individual stocks and require seven days' public notice...

WSJ: Videos of Polymarket 'Winning' Bets Were Bogus

Real-looking TikTok clips actually featured paid creators making fake wagers

(Newser) - The money looked easy, the trades looked legit, and, the Wall Street Journal reports, almost all of it was fiction. A Journal investigation finds that prediction market Polymarket bankrolled a network of mostly college-age influencers to film themselves "betting" and winning big on the platform—using carbon-copy dummy sites...

Kalshi to Collect One More Piece of Info From Users

Employer info will be required in some cases

(Newser) - Kalshi is getting more personal with its users in a bid to curb insider trading. The CFTC-regulated prediction market plans to make some traders disclose where they work before they can wager on events tied to sensitive, nonpublic information, like corporate performance or national security topics. The policy, based on...

Ex-Congressman Convicted of Insider Trading Gets Pardon

Trump's proclamation lists Republicans who support Stephen Buyer

(Newser) - President Trump has pardoned former Rep. Stephen Buyer of Indiana, who was convicted of insider trading in 2023, citing the support of fellow Republicans. A House prosecutor in Bill Clinton's impeachment trial, Buyer was found guilty of using confidential corporate information to collect more than $300,000 in profits....

Report: George Santos Under Investigation Again

Sources say ex-congressman profited from deceptive bets on prediction market Kalshi

(Newser) - George Santos may have exited prison , but federal investigators reportedly aren't done with him. NPR reports that the former New York congressman sentenced to more than seven years in prison for fraud before Trump commuted his sentence last October is now under investigation by the Justice Department and Commodity Futures...

Soldier Who Helped Plan Raid on Maduro Charged Over Bets

Prosecutors say Gannon Ken Van Dyk made $400,000 from Polymarket wagers

(Newser) - A US Army soldier involved in planning the operation to seize Venezuelan President Nicolás Maduro has been charged with using classified details of the mission to make hundreds of thousands of dollars on a crypto prediction market. Federal prosecutors say Gannon Ken Van Dyke, stationed at Fort Bragg, opened...

Paris Weather Bet Turns $119 Into $21K, Triggers Probe

French meteorological agency files police complaint over suspected tampering

(Newser) - Small wagers on Paris weather have turned into a big headache for both forecasters and a betting platform. An anonymous user on Polymarket turned a $119 punt into more than $21,000 after an April 15 contract tied to temperatures at Charles de Gaulle Airport suddenly swung in their favor...

White House Issues Warning After Suspicious Bets

Email warned staff against using insider knowledge to place bets in prediction markets

(Newser) - White House staffers have received a pointed reminder: Don't turn insider access into winning wagers. Sources tell the Wall Street Journal that the White House Management Office emailed all staff about the issue on March 24, a day after President Trump first paused his threat to "obliterate" Iran'...

Insider Trading Suspected in Polymarket Ceasefire Bets

One account created on day of announcement made fast $200K profit

(Newser) - A group of new accounts on the prediction market Polymarket made highly specific, well-timed bets on whether the US and Iran would reach a ceasefire on April 7, resulting in hundreds of thousands of dollars in profits for these new customers. These bets were made even though, in the hours...

Traders Made Big Bets Minutes Before Trump Post

Unusually large volume related to oil markets sparks some suspicion

(Newser) - An unusual thing occurred just before President Trump made a big announcement about Iran on Monday: betting on oil contracts surged. Trading data reviewed by the BBC show a sudden spike in oil futures worth hundreds of millions of dollars in the quarter-hour before Trump declared that the US would...

Polymarket Bets on US-Iran Ceasefire Raise Eyebrows

Suspicious Polymarket wagers raise war profiteering, insider trading fears

(Newser) - In a corner of the crypto world, war and wagers appear to be colliding. Experts tell the Guardian that a cluster of new accounts on online prediction platform Polymarket laid unusually large, well-timed bets on a US-Iran ceasefire that look a lot like someone trading on secret information. The platform...

Polymarket Bar Falls Short of Predictions
Polymarket Bar Has
a Rough Opening
Mar 22, 2026 9:58 AM CDT

Polymarket Bar Has a Rough Opening

Power outage, regulatory worries overshadow debut of prediction-themed venue in Washington

(Newser) - The prediction site that intends to turn "monitoring the situation" into a bar experience in Washington, DC, was unable to monitor much of anything on its opening night. Polymarket's splashy pop-up, the Situation Room, was billed as a data-soaked hangout with more than 80 TVs, live feeds, and...

DHS Pick Mullin Did Very Well Trading Stocks While in Office

Sen. Markwayne Mullin's prolific, well-timed trades get a second look ahead of his confirmation

(Newser) - Sen. Markwayne Mullin's stock picks are drawing fresh scrutiny just as the Oklahoma Republican is up for one of the most powerful jobs in the federal government. The New York Times reports that Mullin has become one of Congress' most active traders, with his portfolio swelling since he arrived...

Unusual Bets on Alien Life Raise Suspicions

Expert believes they were placed either by an amateur trader or somebody with insider info

(Newser) - A nearly six-figure wager on aliens has turned one corner of Wall Street-style betting into a conspiracy theorist's dream. The Atlantic 's Ross Andersen reports that on Monday night, a trader on prediction platform Kalshi suddenly dropped close to $100,000 on a contract that pays out only...

Kalshi: MrBeast Editor Flagged After 'Near-Perfect' Bets

Editor allegedly used insider info to bet on MrBeast markets

(Newser) - A prediction market is accusing someone in MrBeast's inner circle of trying to cash in on insider information. Kalshi said Wednesday it has suspended Artem Kaptur, an editor on the YouTube star's videos, after finding what it called "near-perfect" success on roughly $4,000 worth of bets...

Indictments in Betting Case Involving NBA Surpass 30

Patel calls case 'the insider trading scandal for the NBA'

(Newser) - More than 30 people now have been indicted after a lengthy federal investigation into illegal sports betting operations. "This is the insider trading scandal for the NBA," FBI Director Kash Patel said Thursday at a press conference. The case will shake up professional sports in the US after...

Schiff: Trump Should Be Investigated for Insider Trading

Tariff pause seems suspicious to some Democrats

(Newser) - Some Democrats are calling foul on President Trump's abrupt tariff pause, which caused stock prices to soar —days after the announcement of the tariffs led to the worst market plunge in years . Sen. Adam Schiff of California called on Congress to investigate whether the president engaged in market...

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