Loading summary
A
Foreign. Prediction markets let you bet on pretty much anything. You can bet on sport and politics, both things that Brits have been used to for years but that Americans have gone absolutely bonkers for more recently. Not sure how healthy that is, but anyway, those clever young things in Silicon Valley think we should be betting on any everything. Every life event is something that you can bet on. One thing that's becoming increasingly popular is betting on markets, financial markets. So will the US raise interest rates? Will the uk what will the Euro be doing in the next few days? Will it be up or down against the dollar? At a certain point, this starts to look and smell a lot like mainstream wholesale derivative markets. So today on the show, is this a disaster waiting to happen or actually a useful way for investors to gauge the mood? This is Unhedged, the markets and finance podcast from the Financial Times and Pushkin. I'm Katie Martin, a markets columnist in London, and by the time you hear this, I'll be relaxing on a sun lounger in Greece.
B
Hooray.
A
Joining me from New York City is the big man, Rob Armstrong, off of the Unhedged newsletter. Rob, like the US has gone kind of gambling crazy, right? Like sports betting is quite new for you guys, isn't it?
B
It is. I was shocked when I moved to the UK and there were betting shops on every street, whereas in America there's like one dreary place that you were allowed to bet on horse racing in every city they called these things off track betting and it was like 80 year old men chain smoking cigarettes and losing money. But it's a different story now and everybody can do it their phone and you watch any sporting event and half the ads seem to be for sports betting products. As a sports fan, I think this is a complete disaster and I don't approve of it.
A
No, but it, it sounds like. So when was it permitted over that? This is something that's quite recent in the past couple of years, isn't it?
B
It is.
A
Does sound like the Americans have jumped in with both feet. Like there's a lot of people with sports gambling problems all of a sudden that weren't there before.
B
Yeah, I think that is all true. And you know, I don't, I don't claim not to be a hypocrite on this topic. You can't be interested in finance like you and I are without being, without having some admiration for the principle of settling a disagreement about what the world is going to do by putting some money on it. You think you're right and the rest of the World is wrong, you have two options. You can gas on about it until everybody throws you out of the house, or you can put some money down and see who's right and who's wrong. And so I think betting in the broadest sense is a really good way to clarify your thoughts.
A
There are some, like, bad things that come from this.
B
Very bad things. Yeah, no question.
A
So these prediction markets allow you to bet on things like wars. And to me, that's like, uncool. You shouldn't be betting on wars. And then there was that whole thing recently where some people are bet on one of these prediction markets that the US Was going to invade Venezuela. And then it became this whole dispute because it was like, well, did the US Invade or not invade? What is an invasion really? Does it require boots on the ground? How many boots on the ground actually counts as an actual invasion? So a bunch of people who had bet on the US Invading Venezuela were cross that they didn't get paid out by one of the big betting platforms.
B
Yeah, it was just a kidnapping, not an invasion.
A
Like, so to me, some of this is like, yeah, deeply nihilistic and awful. The other thing that I think is deeply nihilistic and awful is that apparently some betting platforms are at least considering allowing you to bet on wildfires. So will will Rob Armstrong's house catch fire, for example? Like, what does that incentivize people to do?
B
What could that possibly mean? Well, I mean, look, you know, you know who else bets on wildfires? Insurance companies. And we're glad they're around. You know, my point being that having ways to make a market for future events is a very important way for people to transfer risk. Right. I think the kind of concerns you're talking about betting on the wrong kind of events, disputes about what counts as an event or not an event. A lot of that boils down to concerns about what we call in the financial markets, insider trading. And so, you know, it is bad to bet on a war. It's really bad to bet on a war if you're one of the people participating in it and you have information other people don't have. Right. And we have reasonably clear rules for what that means for people who participate in financial markets. You know, if you are a company and you know what earnings it's going to report in a few days, you are not allowed to buy and sell the stock on the basis of that information. Does the same apply to a soldier who's part of the unit that is being prepped to go do something? We, I Don't think we know the answer to that question. I mean, the regulatory regime has to catch up with the reality of these markets. And it should be noted that prosecutors quite rightly are going after this kind of trading on prediction markets. So here from the ft. In May, a Google software engineer allegedly used confidential information to make more than $1 million on prediction market polymarket, according to criminal charges unsealed in New York federal court. So it is, there is a door here for insider trading. And if, and it's, it's no help to say only I only did it on polymarket. Insider trading is insider trading.
A
So, well, companies are kind of talking to their staff about, look, you cannot use information about how the company is doing to, to inform anything that you do on prediction markets.
B
I mean, if I was running a bank, I would be scared about this stuff. Right? I'm the head chief compliance officer at one of these things. This is one of the things that keeps me up late because it is an open temptation to your people to do something that either looks awful or is awful. So this is a recent story from the ft. Goldman Sachs has warned employees to limit their bidding on prediction markets to sports and entertainment categories as it confronts compliance risks posed by wagers on everything from elections to interest rates. So that is good. You can bet on Katy Perry or whatever, but no, not on anything more serious than that.
A
So my, sort of, my starting point for this whole thing is I feel like prediction markets are bad. I just, I don't like them. I just think there's a lot of, a lot of poor behavior that can come out the back of them. But, but a few conversations recently with investors who are like, oh no, sure, we use them all the time. Yeah, like not to place bets on them but to use them as a way of figuring out who is likely to be the next Chancellor, the new next Finance Minister in the uk. What is the bank of England likely to do next? You know, where is public opinion on these things? And one of the reasons why I think this is interesting is that they, you know, I was chatting to someone the other day who was saying sometimes the prediction markets are actually better than normal financial markets at giving you a steer about some of these things. So for example, you look at, I'm sure you remember, Rob, regular listeners will remember at the start of the war in Iran, short term government debt markets in the UK and Europe just got absolutely smoked. Right? So there were lots and lots of hedge funds that had been betting on interest rate cuts in the UK for example. And when they got fried by the massive jump higher in oil prices. They had to rush in the other direction. And so if you look at mainstream financial markets, they were telling you that expectations had gone from two interest rate cuts in the UK to four interest rate rises in the UK in a straight line. Now, there is no universe in which the bank of England was going to raise interest rates four times. But because financial markets have become so crowded and were behaving so stupidly, that's what it looked like the market thought was going to happen.
B
Everyone ran from one side of the boat to the other side of the boat and the boat capsized. Is it that called keeling when a boat.
A
I don't know. Our friend Brendan Greeley would know. He knows a lot of things about boat. Brandon, if you're listening, let us know. But yeah, prediction markets will give you a much more sensible read. They will say, look, okay, maybe the bank of England will raise rates once or twice and that'll probably be enough. So I do think there are, you know, more and more kind of instances where it does make sense for traders just to keep half an eye on where prediction markets are because actually maybe they do tell you something useful.
B
Look, there, there's, there's three things that markets basically do. The first thing is if you have too much savings and I have an investment project, we can swap. You have too much money. I need money. We use markets to swap. That's efficient for society in general. The second thing they do is they let people lay off risk. I have a lot of risk, more than I can handle. You have less, you know, we, and we, that's insurance companies, right? We can trade risk. But the third thing that markets do that they don't get enough credit for is they provide information, right? They, they are, they, they are away. They're a kind of voting machine. And we can watch the voting machine in real time and that can be very informative. And so I think prediction markets are useful. And I, I, I participate. You know, I've had, had the flutter, the random flutter on US politics at different times and, you know, using one of these things. And I watch them closely when I'm writing. You know, I'm wondering what the world thinks about what's going to happen. I will look up at what the bets say. I have real concerns about the insider trading questions you mentioned. But I like worlds with more information and I like worlds where people can take a belief. I have a contrarian belief. I think I should be able to monetize that. I'm not against that. You know, I agree with you. It's creepy when people are betting on fires and on wars. Totally creepy. Well, Katie, we live in a creepy old world, you know, we do, we
A
do live in a creepy world. But so now we're at the point where quite a few sort of trading platforms for things like bonds and currencies and other things, they have widgets embedded in them that enable you as a trader to sort of check on, you know, where is public opinion on this? You know, where. Who does polymarket think is going to be the next, you know, Chancellor in the uk? You know, and actually, you know, I feel icky about the whole using insider knowledge thing, but actually, for a lot of traders, that's what makes it even more useful. So do you remember in the run up to Trump picking Kevin Walsh to be chair of the Fed?
B
Yes. I was watching the prediction markets very closely on that very topic. I remember.
A
Well, because maybe somebody who genuinely does know who's going to get the nod from the President will put a bet on. And so that is extremely useful information.
B
Yeah. So for traders who. Modern stuff, they have to hope that there is insider trading on the. And there are, by the way, free market extremists who think insider trading is good. Right. That that information should be released into markets for just the kind of reason you described. Does the CFO know how good or bad the numbers are? Let her move the market. And that is information about reality being released into markets. I do not believe this. This is true. I just want to pour one out for the laissez faire extremists who take this view. Right. Because they're out there. Right.
A
One thing that I am kind of pleased about in relation to prediction markets is like I say, when there was that whole massive argument about has the US invaded Venezuela and should these people get paid out on their predictions that the US would invade Venezuela? It came down to, well, you know, really what is an invasion? This is why proper financial markets like stocks and bonds and derivatives and all that regulated stuff in, in between. That's why it employs thousands of extremely well meaning, extremely boring people, and I say this with love in my heart, who spend a lot of time defining things, writing contracts. If you are buying a contract that is based on the euro being at a certain, you know, a certain level at a certain time in future, you know, you're looking at a certain exchange rate, the, the nerds will say, what do you mean by a euro? How are you measuring that euro? Are you just using this data source or are you using a combination of data sources? And what if one data source is, is, is different from the others? Then how do we treat that? So this very legalistic, very technical, unbelievably boring stuff, that's why that's there. It's so that you don't have people who are like jumping up and down and saying, well that's not fair. You know, I, I think the euro was trading at 1.25 on, you know, on this day you could, you can get out, you know, shuffle your papers from the very, very boring documents from, from the International Swaps and Derivatives association and say, ah, look, says here black and white.
B
Yeah, this seems like a solvable problem for me. You know, if the prediction market grows, there is going to have to be, they're going to have to hire those same very well meaning boring people to write the contracts and you're going to have to sign on the bottom line. I mean, for me, the salient question isn't technical, it's, there's a bit of a moral question here which is, and you know, this is true of so many things, you know, where does a marketplace for information where people can place bets turn into like a speculative hazard? Right. In a way, in the very same way that, you know, it's fun to bet 10 bucks once in a while in Vegas or whatever on a, on a college basketball game, but at what point are you creating gambling addicts which are a real thing and which we know exist. Right. So there, there's a larger, you know, I'm less worried about the technical stuff. I think we can make rules about insider trading and you know, how these contracts work and so forth, that's a solvable problem. But yeah, the, the like Society of Speculators thing, the Society of Gamblers thing, that's a much harder question. And I feel very torn about it myself because I love to take a flutter, as you British people would say. But at the same time, I know this stuff is fire and you can get burned at the same time. So I feel very torn about it.
A
And I do think some things should just not be up for kind of light hearted, jokey debate like this, like wildfires. So on that cheerful note, we're gonna be back in just one second with long. Okey doke. It is time for Long Short, that part of the show where we go, long a thing we love or short a thing we hate. Rob, what you saying?
B
I'm very much long cash these days, you know. Katie, are you. I love cash right now, Now I, you know, Katie, that I always believe that everyone should always be exposed to the equity market. No matter how big a bubble you think you're in, you can't afford to leave the table altogether. Equities are a long term wealth builder. I love them. But for a long time now I've had too much cash in my portfolio because I'm a bit of a scaredy cat and I go through waves of feeling like, God, I have too much cash right now. I tell you, I'm feeling pretty good about my above average cash allocation.
A
I thought you were talking about like physical cash. I thought you were.
B
Oh, I like that stuff too. I love the feeling of walking around with like for no particular reason, a huge amount of cash in my pocket. It makes me just.
A
You're a weirdo. I don't get it. I'm so over like paper money and coins and stuff.
B
You don't love just. I love to take out a hundred dollar bill just for the feeling of pulling a hundred dollar bill out of my wallet. I love it.
A
No does nothing for me. I am long. London mansions, they're going cheap. So we have a story in the, in the FT just the other day which focuses in on Montpellier Square, which is a very bougie, I believe you Americans would say, tony neighborhood around the corner from Harrods, dead posh. One house there recently sold more than 30% below what it might have gone for a decade ago. And once you take into account inflation, the price had more than halved. Like there's a real issue going on with super prime mansions in London.
B
Love a good mansion.
A
Love a mansion.
B
That's why I got into journalism.
A
So let's just pick up some nice cheap mansions and then we can have some fun housewarming parties and it's all going to be great. Listeners, please go straight ahead and purchase a mansion. Let us know when the party is. We will be there. In the meantime, we're going to be back in your ears in a few days, so listen up then.
Episode Title: The forecast for prediction markets
Date: July 21, 2026
Hosts: Katie Martin (London), Rob Armstrong (New York)
Theme:
A deep dive into the rise of prediction markets—platforms that let people bet on everything from sports to global politics and financial events. The hosts explore whether these markets are a dangerous gamble or a useful source of collective intelligence for investors, discussing ethics, regulation, and the evolution of financial risk-taking.
US Catches Up to UK’s Gambling Culture:
"In America there's like one dreary place...80 year old men chain smoking cigarettes and losing money. But it's a different story now and everybody can do it on their phone." (Rob, 01:36)
Finance and Betting—Related Mindsets:
"Betting in the broadest sense is a really good way to clarify your thoughts." (Rob, 02:33)
Unethical Events and Regulation Challenges:
"To me, that's like, uncool. You shouldn't be betting on wars." (Katie, 03:11)
"Apparently some betting platforms are at least considering allowing you to bet on wildfires. So will Rob Armstrong's house catch fire, for example? Like, what does that incentivize people to do?" (Katie, 03:55)
Insider Trading and Compliance Headaches:
"A Google software engineer allegedly used confidential information to make more than $1 million on prediction market Polymarket." (Rob, 05:44)
"Goldman Sachs has warned employees to limit their bidding on prediction markets to sports and entertainment ... confronting compliance risks posed by wagers on everything from elections to interest rates." (Rob, 06:43)
Market Signals and 'Crowd Wisdom' vs. Traditional Markets:
"Sometimes the prediction markets are actually better than normal financial markets at giving you a steer about some of these things." (Katie, 07:36)
The Three Functions of Markets (Rob, 09:32):
"The third thing that markets do that they don't get enough credit for is they provide information, right? … a kind of voting machine." (Rob, 09:54)
Insider Information as Double-Edged Sword:
"Maybe somebody who genuinely does know who's going to get the nod from the President will put a bet on. And so that is extremely useful information." (Katie, 11:45) "For traders...they have to hope that there is insider trading on the...there are, by the way, free market extremists who think insider trading is good." (Rob, 11:57)
Need for Precise Definitions and Boring Legalism:
Katie contrasts prediction markets' ambiguity with the exhaustive contract details in regulated finance:
"That's why it employs thousands of extremely well meaning, extremely boring people ... who spend a lot of time defining things, writing contracts." (Katie, 12:34)
Rob sees this as a growing pain:
"If the prediction market grows, there is going to have to be...those same very well meaning boring people to write the contracts." (Rob, 14:08)
The hardest problems, according to Rob, are not technical or legal, but moral: at what point does facilitating bets cross into fueling addiction and social harm?
"There's a bit of a moral question here ... where does a marketplace for information where people can place bets turn into like a speculative hazard?" (Rob, 14:28)
"I love to take a flutter, as you British people would say. But at the same time, I know this stuff is fire and you can get burned at the same time. So I feel very torn about it." (Rob, 15:33)
| Timestamp | Speaker | Quote | |-----------|---------|-------| | 01:36 | Rob | "In America there's like one dreary place ... 80 year old men chain smoking cigarettes and losing money."| | 02:33 | Rob | "Betting in the broadest sense is a really good way to clarify your thoughts."| | 03:11 | Katie | "You shouldn't be betting on wars."| | 05:44 | Rob | "A Google software engineer allegedly used confidential information to make more than $1 million on prediction market Polymarket."| | 06:43 | Rob | "Goldman Sachs has warned employees to limit their bidding on prediction markets to sports and entertainment ... confronting compliance risks posed by wagers on everything from elections to interest rates."| | 07:36 | Katie | "...prediction markets are actually better than normal financial markets at giving you a steer about some of these things."| | 09:54 | Rob | "The third thing that markets do that they don't get enough credit for is they provide information ... a kind of voting machine."| | 11:57 | Rob | "There are...free market extremists who think insider trading is good. Right. That that information should be released into markets..."| | 12:34 | Katie | "...thousands of extremely well meaning, extremely boring people ... who spend a lot of time defining things, writing contracts."| | 14:28 | Rob | "Where does a marketplace for information ... turn into like a speculative hazard?"| | 15:33 | Rob | "I love to take a flutter...but at the same time, I know this stuff is fire and you can get burned."|
This episode of "Unhedged" unpacks the exhilaration, utility, and potential dangers of the prediction market boom. The hosts agree: these platforms can offer genuine insights—sometimes outperforming financial markets—but pose profound ethical and regulatory challenges. For now, the unregulated, ambiguous edge between information-sharing and speculative harm keeps prediction markets in murky territory. The need for robust rules and definitions—built by those "boring, well-meaning" financial professionals—will only grow as these forums expand.