Will the Iranian regime fall by September 30?

Platform comparison

Market context

The Islamic Republic of Iran remains firmly in control, with its core institutions—the office of the Supreme Leader, the Guardian Council, and IRGC command under clerical authority—still governing the majority of the population. On Polymarket, this reality is priced at a mere 2% chance of outright regime collapse by September 30, 2026, reflecting a market consensus that the state’s coercive apparatus remains cohesive and funded despite ongoing protests and economic strain.

Historically, regime changes in any given country occur roughly once per century, implying a baseline annual probability of about 1% [1]. While severe economic distress and broad protests can elevate this risk by two to three percentage points, the absence of a unified alternative leadership and deep public fear of chaos—similar to the outcomes seen in Iraq, Libya, Syria, and Afghanistan—pulls the estimate back into the low single digits [1]. This disciplined adjustment suggests that, absent a major shock, the probability of total collapse over the next three months remains modest, rising only slightly over a six-to-twelve-month horizon if current pressures persist [1].

Traders should monitor key catalysts: announcements regarding the Supreme Leader’s health, IRGC loyalty statements, and shifts in Israel’s or the US’s strategic posture. Recent commentary from The Economist notes that while Israel’s strikes aim to weaken the regime, there is no evidence of imminent collapse, and de-escalation paths include either Trump reassessing his strategy or the regime beginning to crumble under sustained pressure [5]. The trading volume on this contract has already exceeded $14 million, underscoring intense on-chain interest in conditional tokens settled in USDC on Polygon [2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.