Kalshi ships an unauthenticated oracle

Over three days in early January 2026, $24,000 in “yes” trades moved Kalshi’s market on whether Donald Trump would acquire part of Greenland by any means, including militarily, from 30 percent to 39 percent. On January 4 the “yes” price briefly touched 60 percent. A few days later CNN’s chief data analyst, Harry Enten, and co-host John Berman discussed that market on air at 43 percent. Berman called it “a pretty high chance” and said the number meant “a lot of people made bets.” He could not say how many people made bets, because Kalshi does not publish that figure.

CNN and CNBC have been treating Kalshi’s prices the way software treats a price oracle: an external feed that asserts a number you then act on. “The Odds,” a CNN segment that has run at least 115 times since December 2025, presents Kalshi probabilities as a measured likelihood, often with Enten arguing they beat polling because traders “put their money where their mouth is.” CNBC has published 58 articles since December that mostly advertise the existence of a Kalshi market, and since April has staffed a dedicated reporter to write them. The feed reaches the viewer with none of the integrity checks you would put on any untrusted input.

Why the price is cheap to move

The Greenland market was thin enough that a small amount of money set the printed probability. A market that moves nine points on $24,000 and spikes twenty in a day behaves like a DeFi contract reading a price off a shallow liquidity pool: the quote is real, the liquidity behind it is thin, and anyone willing to spend a little can make the feed say what they want. Political contracts are where this bites hardest. A May 2026 Pew study put politics at 4 percent of Kalshi’s trading volume; sports is 80 percent. The markets the networks promote most draw a small share of the platform’s trading volume.

The feed is corruptible in the other direction too. NPR reported in June that former Congressman George Santos was under Department of Justice investigation over alleged insider trading on Kalshi, and Popular Information cites other incidents involving political candidates and a MrBeast editor. On June 24, Squawk Box host Joe Kernen gave Kalshi CEO Tarek Mansour an open mic to call Kalshi a “pro-regulation company” with clean hands while “competitors” dealt with insider-trading scandals, and did not ask about Kalshi’s own.

Even deep, clean markets carry a known skew. A February 2026 study by a researcher at Vietnam’s National Economics University, analyzing 292 million trades across 327,000 contracts on Kalshi and Polymarket, found Kalshi’s political markets “compressed toward 50 percent”: they overvalue longshots and undervalue favorites. The author’s explanation is that political markets draw traders with strong opposing convictions who hold a price near 50 to 60 percent even when the true probability is well above or below. The paper, not yet formally published, argues that journalists and consumers who take the prices “at face value… are systematically misled.” The compression is visible in the coverage. Enten, citing Kalshi, told viewers Trump has an 8 percent chance of appearing on a $250 bill, a figure for something that has been illegal for 160 years and has gone no further than a February 2025 bill and a Treasury mockup.

What the networks do with it

There is no authentication on the consuming side either. CNBC discloses on some stories that it “and Kalshi have a commercial relationship that includes customer acquisition and a minority investment,” which means it is paid for every viewer it converts and gains if Kalshi’s valuation rises; The Wrap reports CNBC is also paid for the data. Popular Information counts at least 22 CNBC pieces that carried no such disclosure, along with on-air segments, including a June 26 Squawk Box interview that gave a candidate Kalshi’s 9.5 percent odds, where producers put a Kalshi graphic and QR code on screen without one. CNN’s arrangement, per The Wrap and The New Yorker, runs the other way: Kalshi pays CNN, and CNN is barred from reporting Polymarket odds, which removes the obvious cross-check against a platform with deeper political markets. Kalshi reposts “The Odds” clips on X with the “brought to you by Kalshi” tag stripped off.

The networks dispute the framing. A CNN spokesman said prediction markets are “just one source of data,” a “complement” to polling and “not a replacement,” with “no impact on editorial independence.” CNBC said it discloses relationships “when they are directly relevant” and that Kalshi data is “publicly available” and part of a “broader set of market indicators.” Kalshi said “we’ve always been open about our news partnerships” and that “people aren’t dumb; they hear and see these disclosures and can choose to use our data as added context or choose not to,” without addressing the segments that carried no disclosure.

If you are going to consume these numbers as a signal, treat them like any untrusted oracle. Check the volume and the number of trades behind a move before you believe the move; a nine-point jump on $24,000 is noise wearing a probability. Pull more than one feed, which the CNN deal is structured to prevent. And discount political contracts toward their base rate, because the study says they bias toward the middle, and they are the ones the networks put on television most.