What Iranian demands will Trump agree to by May 31?

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Market context

The question hinges on whether the Trump administration will accept Iran's continued uranium enrichment as part of any diplomatic settlement by May 2026. The market implies a 44% probability of agreement, positioning this as a near-toss-up with slight underdog odds on a deal. Trump withdrew from the Joint Comprehensive Plan of Action (JCPOA) in 2018 and imposed maximum pressure sanctions; his return to office in January 2025 resets the negotiating landscape entirely, though his administration has shown willingness to engage with adversaries on transactional terms when domestic political benefit aligns.

Historical precedent offers mixed signals. The original JCPOA permitted enrichment under strict caps and monitoring—a model that satisfied neither hardliners nor Iran hawks. Trump's first term rejected this framework outright. However, Trump's approach to North Korea demonstrated he will negotiate directly with nuclear-armed adversaries if framed as a personal diplomatic victory. The critical variable is whether any 2025–2026 talks occur at all; the previous administration's "no preconditions" stance differed markedly from Biden's insistence on returning to the JCPOA as a baseline.

Watch for signals from Trump's envoys on whether direct talks commence, and track Iranian domestic politics—Supreme Leader Khamenei's health and succession remain wild cards affecting Tehran's negotiating authority. Any announcement of shuttle diplomacy, backchannel meetings, or explicit negotiating parameters would shift probabilities sharply. The 44% probability reflects genuine uncertainty: a deal is plausible if Trump views it as a geopolitical win, but his historical opposition to uranium enrichment and domestic pressure from Israel-aligned Republicans create substantial headwinds.

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

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On PolyGram, 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.

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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.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.