Iran agrees to end enrichment of uranium by July 31?

Platform comparison

Market context

Iran’s nuclear programme has long centred on uranium enrichment, a capability it developed before the 1979 revolution and expanded through decades of secret work violating its NPT obligations[1]. Past diplomatic efforts, notably the 2015 JCPOA, secured temporary limits on enrichment levels and stockpiles in exchange for sanctions relief, yet Iran systematically abandoned those constraints after 2019, eventually halting compliance entirely by January 2020[1][2]. The deal expired in October 2025, leaving Iran unbound by its terms and actively enriching uranium to 60% purity, with stockpiles rising to over 400 kg by May 2025[3][5]. This historical pattern of initial agreement followed by rapid reversal frames the current 46% market probability: while talks continue, Iran has consistently treated domestic enrichment capacity as a non-negotiable red line, making a public pledge to end it by July 2026 an outlier against established behaviour[5].

Traders evaluating this market programmatically should monitor scheduled IAEA reports, intermediary talks via Oman, and any sudden shifts in US or Israeli diplomatic posture, as these are the primary catalysts for potential breakthroughs or breakdowns[5]. Recent five rounds of talks, mediated by Oman since April 2025, have stalled precisely on Iran’s insistence to retain enrichment rights on its soil, with the US proposing a regional consortium model that Iran has rejected[5]. A trader’s algorithm might weight IAEA stockpile data—such as the 50% increase in 60% enriched uranium reported in May 2025—as a negative signal for agreement likelihood, while tracking public statements from Iranian officials for any softening on the red line[5]. The settlement window ending July 31, 2026, requires watching for any unilateral announcement or bilateral pledge before that date, as the market resolves on the agreement itself, not its implementation timing[5]. Current data suggests the probability of such a pledge remains low, given Iran’s entrenched position on sovereign enrichment capacity.

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). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket App UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does it cost to trade on Polymarket App UK?

Zero. Polymarket App UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

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.