On paper, Polymarket looks like a clean success story. Over the past three years, it has racked up about 62 billion dollars in notional trading volume, giving it roughly 54% of the 114 billion‑dollar prediction‑markets segment tracked by Token Terminal.
Most of that flow lives on Polygon, and a growing share focuses on politics, macro events, and lately, the escalating conflict between the U.S. and Iran.
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But the same Iran‑linked contracts that pushed activity to records are now testing how far regulators will let these markets go before they’re treated less like “information tools” and more like unlawful betting or unregistered binary options.
The volume story: a clear market leader
Finance Magnates reports that Polymarket commands just over half of on‑chain prediction‑market volume, with around 62.3 billion dollars in notional traded since 2023.
Its markets let users buy “yes” or “no” shares on everything from election outcomes to inflation data and central‑bank moves, with winning shares settling at one dollar.
Token Terminal’s data puts the total segment at about 114.4 billion dollars in notional volume over the same window, meaning Polymarket’s liquidity, UX, and market selection have turned it into the default venue for retail‑driven event trading.
Iran‑related contracts, such as timelines for de‑escalation, potential strikes, or leadership change, have become some of the biggest markets, concentrating millions in open interest as traders try to price geopolitical risk in real time and, in some cases, make six‑figure profits on correctly timed bets.
The regulatory story: war, death bets, and jurisdiction
Fair to say, that growth has not gone unnoticed. In the U.S., the CFTC has already brought and settled an enforcement case against Polymarket for offering unregistered event‑based binary options, forcing it to pay a penalty and restrict access for U.S. users, and is now running a broader consultation on how to treat prediction markets going forward.
Lawmakers have weighed in too: Senator Adam Schiff’s proposed DEATH BETS Act would amend the Commodity Exchange Act to bar CFTC‑regulated venues from listing markets tied to war, terrorism, assassination, or individual deaths, a direct response to Iran war and “death pool” contracts.
Internationally, the fault lines look different but rhyme. In Argentina, authorities have ordered a nationwide block on Polymarket after complaints from lottery regulators and gambling prosecutors, instructing ENACOM and local ISPs to treat it as an unauthorized online betting platform rather than an innovative financial market.
Ukraine has taken a similar stance, with its communications regulator blocking access on the grounds that Polymarket provides gambling services without a local license.
The core question: market or gambling? And where’s the line?
All of this circles a simple but uncomfortable question: when does a prediction market count as a financial instrument, and when is it just an online betting site with better branding?
Contracts on elections, inflation prints, or policy decisions can be framed as hedging tools or information markets for traders and analysts, contracts on war escalation, terrorist attacks, or individual deaths are much harder to defend that way in front of regulators and the public.
The point isn’t that prediction markets are doomed. It’s that the more they move into macro and political territory, and the more volume they attract, the more they invite classic regulatory treatment: registration requirements, outright bans on certain categories of events, and geoblocks in jurisdictions that classify them as illegal gambling.
Growth is proof there’s real demand for this kind of “event trading,” but the Iran episode shows there are hard red lines.
And they won’t be drawn by traders, they’ll be drawn by regulators and courts, country by country.
Cryptocurrency and Web3 expert, founder of Kriptoworld
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With years of experience covering the blockchain space, András delivers insightful reporting on DeFi, tokenization, altcoins, and crypto regulations shaping the digital economy.
📅 Published: March 18, 2026 • 🕓 Last updated: March 18, 2026
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