John Oliver Takes a Bold Stand Against Prediction Markets—What He Reveals Will Shock You

John Oliver Takes a Bold Stand Against Prediction Markets—What He Reveals Will Shock You

Ever wonder if you could actually bet on whether a politician would drop the phrase “fake news” in a speech? Well, John Oliver’s latest deep dive on HBO’s Last Week Tonight takes a hilarious—and scathing—look at prediction market platforms like Kalshi and Polymarket, where the absurd becomes a marketplace reality. From Trump Jr.’s cozy ties with these platforms to the eerie lack of regulatory pushback on bets involving terrorism and war, Oliver unpacks how easy it is for savvy insiders to rig these markets—yep, even by casually mentioning crypto buzzwords during earnings calls. As prediction markets spiral toward a projected $1 trillion by 2030, the spotlight’s on the bubbling legal battles and the sudden interest from financial titans like Charles Schwab. So, is this the future of investing… or just a very odd game of high-stakes guesswork? Dive into the chaos and catch Oliver’s trademark wit that strips down the hype and serves some much-needed reality checks. LEARN MORE.

John Oliver, host of HBO’s Last Week Tonight, targeted prediction market platforms on his show’s latest weekly deep dive.

In Sunday’s airing of the HBO show, Oliver discussed some of the trivial event contracts on platforms such as Kalshi and Polymarket, including betting whether members of the Trump administration would use certain words in public addresses, to the companies’ controversial partnering with news organizations. 

Specifically, the host questioned Donald Trump Jr.’s relationship with both platforms — an adviser to Kalshi and Polymarket — and how the US Commodity Futures Trading Commission (CFTC) “doesn’t even seem to be trying” to block event contracts on terrorism, assassination and war under Chair Michael Selig.

For much of the show, Oliver discussed how it is “incredibly easy for individuals to manipulate the outcomes,” citing Coinbase CEO Brian Armstrong rattling off a list of crypto-related words in his third-quarter 2025 earnings call to cause many Kalshi and Polymarket users to win their bets.

“I’m going to make you a promise tonight,” said Oliver, echoing Armstrong’s statement. “I will never do anything because someone online placed a bet on it. So you can be confident that if I ever say Bitcoin, Ethereum, blockchain, staking and Web3, it won’t be because I’m trying to move markets — it will be because I’m having a stroke.”

Source: HBO Last Week Tonight

While user activity and trading volume on prediction markets have increased exponentially in recent months — expected to reach $1 trillion by 2030 — the platforms’ controversial bets and legal status in US states have raised eyebrows for some experts. Gaming authorities in several states are suing companies like Kalshi over alleged illegal sports betting, with Coinbase chief legal officer Paul Grewal and others expecting the legal fight to end up before the US Supreme Court.

Related: Senate bill to target sports betting ban on prediction markets: WSJ

Financial giants looking to expand into prediction markets?

In addition to previously announced partnerships with media giants like CNN, CNBC, Fox News and Dow Jones, traditional financial companies including Charles Schwab and Citadel Securities recently signaled plans to consider prediction markets.

Charles Schwab CEO Rick Wurster said on a Thursday investors call that the company would “take a hard look at” prediction markets. In a separate event the same day, Citadel Securities President Jim Esposito said that the company was “absolutely keeping an eye on developments” as part of a potential move into the market.

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