War Prediction Markets Are a National-Security Threat

Isnt this silly when you can calculate the chance of war in Iran by oil futures instead. Prediction markets are just explicit markers of information that is already being traded on in 100 different ways.

> The day before, 150 users bet at least $1,000 that the United States would strike Iran within the next 24 hours

Yeah, I heard the same thing at the same time from several friends. And I'm not talking top brass, so it must have been pretty obvious at that point.

Rhetorical question: why do non-insiders still bet in these markets? Surely, after all of the focus on insiders, people will begin to realize that betting without insider knowledge is a fool’s gambit..

Related: https://news.ycombinator.com/item?id=47211476 - “Allegations of insider trading over prediction-market bets tied to Iran conflict” (morningstar.com)

97 points | 5 days ago | 55 comments

Also from The Atlantic about prediction markets: https://www.theatlantic.com/technology/2026/03/central-lie-p... - “A Technology for a Low-Trust Society”

Placing a bet based on insider national security information should be regarded as leaking. But the markets aren't the problem here.

Lindsey Graham candidly admitting to being the agent of a foreign country is a National-Security threat.

> Ayatollah Ali Khamenei was not, it’s safe to assume, a devoted Polymarket user. If he had been, the Iranian leader might still be alive. Hours before Khamenei’s compound in Tehran was reduced to rubble last week, an account under the username “magamyman” bet about $20,000 that the supreme leader would no longer be in power by the end of March.

I know this is more for the drama than an actual claim, but it made me wonder -- is this bet a remarkable occurence in the data, or just one trade in a sea of similar trades? _Would_ somebody have been able to guess it? I looked for the original market[0], and am surprised by two things:

1. There was lots of activity around that value when the order was placed, so I don't think the trade would have alerted anyone [1].

2. Polymarket lists the trade as happening _19 days ago_, Feb 16! I don't understand why polymarket says it happened feb 16, when all the news I've seen reports it happening just before the strikes. I'm guessing there's a bug in the way polymarket displays past trades?

Note that if polymarket is displaying the history of trades incorrectly, my claim #1 may not hold.

E̶d̶i̶t̶:̶ ̶M̶a̶g̶a̶m̶y̶m̶a̶n̶'̶s̶ ̶g̶e̶n̶e̶r̶a̶l̶ ̶h̶i̶s̶t̶o̶r̶y̶ ̶o̶n̶ ̶p̶o̶l̶y̶m̶a̶r̶k̶e̶t̶ ̶i̶s̶ ̶a̶l̶s̶o̶ ̶r̶e̶a̶l̶l̶y̶ ̶s̶u̶r̶p̶r̶i̶s̶i̶n̶g̶.̶ ̶L̶o̶o̶k̶i̶n̶g̶ ̶a̶t̶ ̶t̶h̶e̶ ̶c̶l̶o̶s̶e̶d̶ ̶p̶o̶s̶i̶t̶i̶o̶n̶s̶,̶ ̶t̶h̶e̶y̶ ̶j̶u̶s̶t̶ ̶_̶d̶o̶n̶'̶t̶_̶ ̶s̶e̶e̶m̶ ̶t̶o̶ ̶l̶o̶s̶e̶[̶2̶]̶.̶ ̶A̶m̶ ̶I̶ ̶m̶i̶s̶r̶e̶a̶d̶i̶n̶g̶ ̶t̶h̶i̶s̶ ̶d̶a̶t̶a̶?̶ ̶T̶h̶e̶y̶ ̶d̶o̶ ̶w̶a̶g̶e̶r̶ ̶a̶ ̶l̶o̶t̶ ̶a̶b̶o̶u̶t̶ ̶t̶h̶e̶ ̶m̶i̶d̶d̶l̶e̶ ̶e̶a̶s̶t̶,̶ ̶b̶u̶t̶ ̶t̶h̶e̶y̶ ̶_̶a̶r̶e̶n̶'̶t̶_̶ ̶e̶x̶c̶l̶u̶s̶i̶v̶e̶l̶y̶ ̶w̶a̶g̶e̶r̶i̶n̶g̶ ̶o̶n̶ ̶t̶h̶a̶t̶;̶ ̶t̶h̶e̶y̶ ̶w̶a̶g̶e̶r̶ ̶o̶n̶ ̶p̶l̶e̶n̶t̶y̶ ̶o̶f̶ ̶o̶t̶h̶e̶r̶ ̶s̶t̶u̶f̶f̶ ̶t̶o̶o̶ ̶(̶c̶h̶a̶n̶g̶e̶ ̶i̶n̶ ̶P̶M̶ ̶o̶f̶ ̶T̶h̶a̶i̶l̶a̶n̶d̶,̶ ̶B̶i̶t̶c̶o̶i̶n̶ ̶p̶r̶i̶c̶e̶s̶ ̶a̶t̶ ̶m̶u̶l̶t̶i̶p̶l̶e̶ ̶d̶a̶t̶e̶s̶,̶ ̶S̶P̶5̶0̶0̶ ̶g̶o̶i̶n̶g̶ ̶u̶p̶ ̶o̶r̶ ̶d̶o̶w̶n̶,̶ ̶w̶i̶n̶n̶e̶r̶ ̶o̶f̶ ̶W̶i̶m̶b̶l̶e̶d̶o̶n̶,̶ ̶p̶r̶o̶b̶a̶b̶l̶y̶ ̶o̶t̶h̶e̶r̶s̶)̶.̶ ̶T̶h̶e̶ ̶f̶a̶c̶t̶ ̶t̶h̶a̶t̶ ̶t̶h̶e̶y̶ ̶g̶e̶t̶ ̶a̶l̶l̶ ̶o̶f̶ ̶t̶h̶e̶s̶e̶ ̶r̶i̶g̶h̶t̶ ̶m̶a̶k̶e̶s̶ ̶m̶e̶ ̶w̶o̶n̶d̶e̶r̶ ̶i̶f̶ ̶t̶h̶e̶y̶ ̶r̶e̶a̶l̶l̶y̶ ̶a̶r̶e̶ ̶j̶u̶s̶t̶ ̶a̶ ̶g̶r̶e̶a̶t̶ ̶p̶r̶e̶d̶i̶c̶t̶o̶r̶.̶ I was reading the trades ordered by profit, so only the successes were showing. Order by date to see Magamyman's failures. Thanks @stevenwaterman for catching this.

[0] https://polymarket.com/event/khamenei-out-as-supreme-leader-...

[1] https://snipboard.io/DP1MWK.jpg

[2] https://polymarket.com/profile/%40Magamyman

I think it's safe to say that beside national security risks. Allowing unrestricted betting on pretty much anything in the world is just not something we should have...

This presumes that the nation's security is bolstered by the government's ability to keep secrets. It strikes me that, even if this is true in some ways, the opposite is true in others.

Betting was once a vice overseen by the mob -- and those addicted to it were rightly viewed as pathetic figures, akin to serious alcoholics. Now betting pervades nearly every aspect of Anglosphere life. This transformation, which has taken place over the past 100 years but has really picked up steam over the last 15, has not been an improvement. It's net negative for society, and the evidence on this is very clear.

Prediction markets are the worst and most insidious manifestation of this phenomenon. They reward insider trading and may also induce people to seek outcomes that are undesirable for society at large. (e.g. in tfa.) There's literally no way this experiment ends well -- which is to say that there's no way this ends in "markets" that benefit and enlighten the common man.

I look forward to the pendulum swinging the other way. Even with such a broken political system, it might.

It's 100% legal if you're in the inside circle

Pretty sure war thunder forums still take the cake on that one. The lulz motive is far higher than the profit motive.

> Ayatollah Ali Khamenei was not, it’s safe to assume, a devoted Polymarket user. If he had been, the Iranian leader might still be alive. Hours before Khamenei’s compound in Tehran was reduced to rubble last week, an account under the username “magamyman” bet about $20,000 that the supreme leader would no longer be in power by the end of March.

Good thing that Polymarket gives such a good signal unlike such subtle clues as carrier group movements.

I said this in another thread, but if you were to ask me "what is the biggest 180 you've made on some political or policy question in the last decade", it would for sure be prediction markets. I used to be all-in on the idea after reading Caplan, Taleb etc.: make people have "skin in the game" on a grand scale and we can have better predictions and better policy! But what a disaster they've been in practice: it's just a new avenue for government corruption and ruining your life with gambling. And now apparently a nat-sec problem as well.

Just another grift for orange man and his posse. https://www.msn.com/en-us/money/markets/anonymous-polymarket...

These are scraps, so far. Now, what could you do if you had access to both markets and the Executive? About 4 billions, it would seem.

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