US-Iran Final Nuclear Deal by…?

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Market context

The June 14 U.S.-Iran written understanding has already moved the market away from a pure no-hope standoff: a 60-day negotiating window, sanctions relief talk, and nuclear limits were all put on paper, which is why the current **1% YES** looks like a heavy underdog price rather than a dead market. Even so, the real hurdle is not the existence of talks but a qualifying final instrument signed or formally adopted by the deadline, and Reuters noted that the draft still left the core nuclear issues to be negotiated within 60 days.[6]

Historically, this kind of interim framework is better read as a bridge than a finish line. Comparable Iran nuclear efforts have often produced statements of principle, temporary pauses, or technical rounds without a final legal text; the 2015 JCPOA took years of multilateral bargaining, and the current negotiation remains exposed to the same familiar blockers: enrichment levels, uranium stockpiles, sanctions snapback, and sequencing of concessions. That keeps the consensus close to the market’s low single-digit pricing, though a contrarian case exists if both sides prioritise de-escalation and can package a narrow, face-saving accord quickly.[3][8]

Catalysts are straightforward: watch for any announcement that the June 14 deal is formally signed, any extension of the 60-day negotiating period, and whether technical talks produce a text on enrichment and sanctions relief. BBC reported that negotiators planned further talks shortly, with technical discussions scheduled in Vienna, while Omani mediation said there was “significant progress” but unresolved differences remained.[1] That leaves the value debate split between the favourite — a No outcome if talks drift or harden — and the underdog — a Yes if the sides convert the framework into a qualifying written instrument before 31 August.[1][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track US-Iran Final Nuclear Deal by…? 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

Where can I trade this market with the lowest fees?

On Who Will Win 2026, 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 does it cost to trade on Who Will Win 2026?

Zero. Who Will Win 2026 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Who Will Win 2026 triggers a quick verification flow that finishes in 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.