What Iranian demands will Trump agree to by May 31?

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Market context

Trump's return to the White House has shifted calculations around Iran's nuclear programme. The administration has signalled a harder line on Tehran than during the first term, with National Security Advisor Marco Rubio and Secretary of State Marco Rubio both advocating maximum pressure. Yet the incoming team has also indicated willingness to negotiate directly with Iran on multiple fronts—sanctions relief, regional stability, and nuclear matters—rather than pursue purely confrontational tactics. The question of whether the US will formally accept Iran's continued uranium enrichment hinges on whether negotiations yield a new framework or revert to the 2015 Joint Comprehensive Plan of Action model.

Historical precedent suggests the bar for US acceptance of enrichment is high but not insurmountable. The JCPOA permitted Iranian enrichment up to 3.65 per cent under strict International Atomic Energy Agency monitoring, which the Trump administration abandoned in 2018. Comparable negotiations—the Agreed Framework with North Korea (1994) and various arms-control treaties—show that US administrations can accept adversary capabilities when verification mechanisms and strategic concessions are robust enough. The current 35 per cent probability reflects scepticism that Trump will move toward such compromise within eighteen months.

Traders should monitor statements from upcoming Iran talks, any IAEA reports on enrichment levels, and signals from Rubio's State Department on negotiating parameters. Congressional pressure, particularly from hardliners opposing any enrichment acceptance, will constrain negotiating room. The May 2026 deadline leaves roughly sixteen months for substantive diplomacy—a compressed timeline given the complexity of nuclear agreements and domestic political constraints on both sides.

Methodology

We track What Iranian demands will Trump agree to by May 31? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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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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.

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.

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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.