{"id":497956,"date":"2026-05-22T19:55:10","date_gmt":"2026-05-22T19:55:10","guid":{"rendered":"https:\/\/www.europesays.com\/ie\/497956\/"},"modified":"2026-05-22T19:55:10","modified_gmt":"2026-05-22T19:55:10","slug":"kalshi-and-polymarket-are-spoiling-reality-shows-can-studios-stop-it","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ie\/497956\/","title":{"rendered":"Kalshi and Polymarket Are Spoiling Reality Shows. Can Studios Stop It?"},"content":{"rendered":"

\n\tThe winner of CBS\u2019 \u201cSurvivor<\/a> 50\u201d was announced live on air on May 20.<\/p>\n

\n\tBut traders on prediction market platforms Kalshi<\/a> and Polymarket<\/a> \u2014 and \u201cSurvivor\u201d fans exposed to reports of the fluctuating odds \u2014 saw Aubry Bracco\u2019s payday coming before the season even began.<\/p>\n

\n\tWhen a \u201cSurvivor 50\u201d market opened on Kalshi six weeks before the Feb. 25 season premiere, preliminary trades forecast Bracco to have a 61% chance of winning \u2014 nearly double the odds of her next closest competitor. By Jan. 28, she had jumped to 83%. And on Feb. 28, just days after the premiere and before Bracco had accumulated much screen time, a user bet $45,500 she would win the season (which later earned them a profit of $4,500). By market\u2019s close on the day of the finale, a staggering $32.7 million in wagers had lifted her odds to 97%. (On Polymarket, \u201cSurvivor 50\u201d predictions only reached a trade volume of $1.9 million, but the odds followed a similar trajectory.)<\/p>\n

\n\tFor anyone following along, Bracco seemed all but certain to be crowned the Sole Survivor. Minutes before the finale, Kalshi goaded in a push notification: \u201cIs the island already decided?\u201d<\/p>\n

\t\t\t\t\t\t\"\"<\/p>\n

\t\t\t\t\tA push notification Kalshi sent to users minutes before the \u201cSurvivor 50\u201d finale.<\/p>\n

\n\tPretaped reality TV shows are facing an unforeseen problem: Prediction markets are spoiling their endings. It\u2019s not just \u201cSurvivor\u201d: Kalshi users correctly predicted Galaxy Girl, at 91% odds, would win this season\u2019s \u201cMasked Singer\u201d three months before Ashlee Simpson removed her space-themed costume in the finale. The site similarly spoiled the winner of \u201cNext Level Chef\u201d in February, though the season didn\u2019t conclude until May 21. And Doug Mason, a contestant on the ill-fated Season 22 of \u201cThe Bachelorette<\/a>,\u201d peaked at 89.5% on Polymarket and 93% on Kalshi before ABC canceled the premiere. The season may never air, but to find out who received the final rose, just follow the money.<\/p>\n

\n\tBy way of blogs like RealitySteve<\/a> and Reddit pages like SpoiledSurvivor<\/a>, there\u2019s a long history of unscripted shows being spoiled on the internet. Networks tend to assume these leaks spring from cast members. But \u201cSurvivor 50\u201d contestants were sent home in July 2025 without being told the winner; they had to wait until the live finale to see host Jeff Probst read the votes onstage. That means only a select number of \u201cSurvivor\u201d staffers had knowledge of Bracco\u2019s victory \u2014 forcing CBS, a source says, to reckon with the fact that any leak would have had to come from production.<\/p>\n

\n\tInsider trading is banned on both Kalshi and Polymarket, and Kalshi\u2019s head of communications, Elisabeth Diana, says the platform uses AI-powered third-party surveillance to detect suspicious transactions. The company has repeatedly assured that it\u2019s investigating its \u201cSurvivor\u201d market. (Reps for Polymarket did not respond to a request for comment.)<\/p>\n

\n\t\u201cNo traders with large positions seem to have a relationship to the show or to the network,\u201d Kalshi\u2019s head of enforcement, Robert DeNault, wrote on X<\/a> following the finale.<\/p>\n

\n\tRegarding the depth of their investigations, Diana says, \u201cWe don\u2019t just look at the people in the household of a person trading. We can also see from their social activity, what they\u2019re doing on the site, who they\u2019re connected to.\u201d If an AI-flagged trade is deemed anomalous, Kalshi reps interview the trader to assess wrongdoing. The company has publicly cracked down on five offenders, including a video editor who worked for MrBeast.<\/p>\n

\n\tIf no insider trading is occurring in these reality TV markets, as Kalshi claims, how have users\u2019 predictions become so accurate? If you ask the company, it\u2019s because traders consult spoilers that are already circulating online. Whether those spoilers originated with insiders is irrelevant to Kalshi brass as long as the traders themselves haven\u2019t broken the law.<\/p>\n

\n\t\u201cRealitySteve obviously has people talking to him and maybe leaking information, which isn\u2019t good, but he puts it online,\u201d Diana says. Kalshi\u2019s investigations have largely found that traders on the \u201cSurvivor\u201d market were following intel from a Reddit user known as \u201cLifetimerobot<\/a>,\u201d who has a strong track record for accurately spoiling the show. As DeNault wrote, \u201cPublic rumors don\u2019t equal insider information.\u201d<\/p>\n

\n

Update: we continue to investigate insider trading in Survivor markets, but the below still holds true: so far, no traders with large positions seem to have a relationship to the show or to the network. Thousands of traders took early positions consistent with the outcome, likely\u2026 https:\/\/t.co\/yF77b2VaAI<\/a><\/p>\n

\u2014 robertjdenault (@robertjdenault) May 21, 2026<\/a><\/p><\/blockquote>\n

\n\tStill, those rumors used to be flagged with spoiler warnings, making it easy for casual viewers to avoid seeing them. Now, betting odds on Kalshi and Polymarket proliferate on social media, and the amount of money behind the predictions make them hard to dismiss.<\/p>\n

\n\t\u201cIn the past, there was a plausible deniability to it. If someone\u2019s telling you Aubry wins, you could be like, \u2018You don\u2019t know what you\u2019re talking about,’\u201d says one Kalshi trader who earned about $500 trading on Bracco. \u201cNow, people are putting bets of thousands of dollars on it, and you take it more seriously. It has removed that layer of being able to cover your eyes and pretend.\u201d<\/p>\n

\n\tThat new certainty poses a major headache for studios. One industry insider takes an optimistic view, suggesting that multimillion-dollar prediction markets could help drum up excitement and ratings. But many are concerned that spoilers remove suspense and can turn off viewers entirely.<\/p>\n

\n\tA source at CBS parent company Paramount says there have been executive-level conversations about insider trading on prediction markets. The problem, the source says, is that it\u2019s almost impossible for studios to put a stop to it. While legal and compliance departments at corporations can enforce strict policies with respect to the stock exchange, massive amounts of money, time and corporate infrastructure would be required to effectively extend insider trading governance and compliance technology to prediction markets.<\/p>\n

\n\t\u201cThe tools aren\u2019t there yet,\u201d the Paramount source says. \u201cThe markets are outrunning regulation.\u201d<\/p>\n

\n\tNetworks could explicitly prohibit engagement with prediction markets in NDAs signed by production staffers. But that would be difficult to enforce given that most reality TV crew members are independent contractors, not salaried employees being monitored by compliance technology. Failing that, studios could prevent leaks by restructuring their shows and removing pre-taped elements altogether, but that could be an even bigger logistical nightmare.<\/p>\n

\n\tLegal battles over prediction markets are ongoing at the state level \u2014 Minnesota is the first state set to ban them \u2014 but the federal government has yet to address insider trading on the platforms in any meaningful way.<\/p>\n

\n\tSo the trades are not slowing down: The Kalshi market for \u201cSurvivor\u201d Season 49, which correctly predicted Savannah Louie\u2019s win, brought in just $2.4 million; Season 50 drove a volume increase of 1,284%. <\/p>\n

\n\tThe Paramount source proposes one potential solution: Studios could form partnerships with Kalshi or Polymarket, perhaps collaborating on certain types of markets related to their shows and advertising them on air \u2014 in exchange for shutting down other, spoilery ones.<\/p>\n

\n\tBut prediction market platforms wouldn\u2019t necessarily be willing to make such deals. \u201cWe would not be able to compromise on the experience for traders,\u201d Diana says. \u201cTraders are the people keeping the site going, so we\u2019ve got to always prioritize their needs over any partners\u2019 needs.\u201d<\/p>\n

\n\tSo when it comes to stopping leaks, the Paramount source says studios are on their own: \u201cThe only viable path is for corporations to monitor themselves.\u201d <\/p>\n

\n\tUntil then, to paraphrase \u201cSurvivor\u201d icon Sue Hawk, \u201cthis island is full of snakes and rats.\u201d<\/p>\n