Latest / Bull Market Conversations with Fexingo: Rallies, Momentum, and Riding Market Strength / Why the Bull Market Is Making Prediction Markets Mainstream
Transcript
- Lucas: So the S&P 500 is off about 0.8 percent over the last five days, but one corner of finance is absolutely on fire — prediction markets. Kalshi just announced three million new users, and a lot of that is tied to World Cup mania. Luna: Three million is huge. That's almost a third of Robinhood's entire user base, and Robinhood has been around for over a decade. Lucas: Exactly. And it's not just Kalshi. Polymarket, which is blockchain-based, has seen daily trading volumes hit over a hundred million dollars on some days this month. The World Cup is the catalyst, but the underlying trend is bigger. Luna: What's the driver? Is it retail traders looking for action, or is something structural changing? Lucas: Both, but I think the structural piece is more interesting. These platforms are essentially single-event futures exchanges. You're not betting on a stock price in three months — you're betting on whether the Fed cuts rates at the September meeting, or who wins the World Cup. It's binary, it's short-dated, and the liquidity is getting good. Luna: And the regulatory environment is shifting too. The CFTC has been sort of circling these platforms, but they haven't shut them down. In fact, Kalshi won a court case last year that let them list congressional control contracts. Lucas: Right. That was a landmark moment. The CFTC argued those were gambling, the judge said they were legitimate futures contracts. That opened the floodgates. Now you've got contracts on everything from CPI prints to Taylor Swift's next album release date. Luna: It sounds like a casino, but the efficiency argument is real. Prediction markets aggregate information faster than polls or surveys. There's real money on the line, so participants have incentive to be accurate. Lucas: That's the academic case. And it's why you're seeing institutional interest. I talked to a portfolio manager last week who uses Polymarket to hedge macro risk. He bought contracts on 'Fed holds rates in July' instead of buying puts on the S&P 500. Cheaper and more precise. Luna: That's actually brilliant. If your main macro worry is a specific Fed decision, why pay for broad equity protection? The prediction market contract is like a micro-hedge. Lucas: Exactly. And the notional amounts are still small relative to traditional derivatives, but they're growing fast. Kalshi's open interest is up about 400 percent year-over-year. Polymarket's is probably higher. Luna: Let's talk about the World Cup specifically. That's the headline. How much volume are we talking? Lucas: Kalshi said World Cup contracts accounted for about 40 percent of their volume in June. The final is next weekend, so you're seeing a huge spike. But the interesting thing is that users who come for the World Cup often stay for the financial contracts. It's a funnel. Luna: So the World Cup is like the gateway drug. Once you understand how a binary contract works, you might trade a Fed decision or an earnings beat. Lucas: Exactly. And the user experience is much simpler than opening a futures account. You sign up with a debit card, trade on your phone, and settlements are fast. It's basically Robinhood for events. Luna: I want to push back on something though. These markets are still thin for less popular events. If you try to trade a contract on 'Will the UK enter a recession in Q3 2026?' the bid-ask spread might be huge. Lucas: That's fair. Liquidity is concentrated in the most popular contracts — Fed decisions, elections, major sports. The long tail is still pretty illiquid. But that's normal for any new market. The bid-ask spread on S&P 500 futures in the 1980s was probably enormous too. Luna: True. And the regulatory uncertainty is still there. The CFTC hasn't issued formal guidance on blockchain-based prediction markets. Polymarket operates with a sort of wink and a nod. If the regulator suddenly cracks down, that could hurt. Lucas: Yeah, that's the Sword of Damocles. But Kalshi is regulated as a designated contract market. They've gone through the full CFTC registration process. So they're in a stronger position. Polymarket uses crypto and is less clear-cut. Luna: If I'm a retail listener hearing this, what's the takeaway? Should I try trading a prediction market? Lucas: I'd say: start small, use money you can lose, and treat it as a learning tool. The contracts are a great way to understand probabilities and expected value. But don't assume the market is always right. There's plenty of noise. Luna: Yeah, I think that's fair. And honestly, if this conversation helped you think about prediction markets in a new way, that's the kind of value we try to bring. If today was worth a coffee to you, you know where to find us — buy me a coffee dot com slash fexingo. No pressure, just a way to keep this ad-free. Lucas: Really appreciate that. And it genuinely helps us keep doing deep dives like this. So, back to the markets — one other angle I want to hit: how the Fed itself is watching these platforms. Luna: Oh, interesting. You think they're using prediction markets as a real-time sentiment gauge? Lucas: I've heard from people at the New York Fed that staffers monitor Kalshi probabilities for rate decisions. It's not official policy, but it's another data point. And with the Fed trying to communicate more clearly — you saw that 'WarshGPT' headline — they need to know how the market is interpreting their words. Luna: So prediction markets could actually improve Fed communication. If the market probability of a hike diverges from what Fed speakers are saying, that's a signal they need to clarify. Lucas: Exactly. It's like a real-time feedback loop. And compared to surveys like the Survey of Professional Forecasters, it's faster and cheaper. Luna: But also potentially more volatile. A single tweet or headline can swing a contract 10 points. Lucas: Sure. It's noisy. But over time, the accuracy is impressive. Studies show prediction markets outperform polls in elections and expert surveys in economic forecasting. The wisdom of the crowd with skin in the game. Luna: So where do you see this in two years? Do prediction markets become a standard part of the institutional toolkit? Lucas: I think so. If Kalshi keeps growing and the regulatory path stays clear, you'll see hedge funds and asset managers using them for hedging and alpha generation. Maybe even corporations hedging event risk — like a drug trial outcome or a regulatory decision. Luna: That would be a huge leap. Right now it's mostly retail and a few early institutional adopters. Lucas: Right. But the infrastructure is getting better. Kalshi just launched a API for algorithmic traders. That's a tell. Once the quants get involved, volumes explode. Luna: And you think that's a good thing? More liquidity, but also more potential for manipulation? Lucas: It's a double-edged sword. More liquidity means tighter spreads and better price discovery. But large traders can move markets if they want to. The key is transparency. Kalshi publishes full order book data, so it's more transparent than most OTC derivatives. Luna: Okay, so to wrap up: prediction markets are booming, driven by the World Cup and a regulatory green light. They're starting to be used for hedging and even Fed communication. Still early, but the trajectory is steep. Lucas: Yeah. And if you're curious, throw a small amount at a World Cup final contract. It's a fun way to learn. Just don't bet the rent. Luna: Words to live by. Thanks Lucas. Lucas: Thanks Luna. See everyone next time.