US-Iran Final Nuclear Deal by…?

Platform comparison

Active sub-markets

Market context

The United States and Iran have just concluded a framework agreement in Switzerland, establishing a 60-day roadmap to negotiate a final deal on Iran’s nuclear programme, highly enriched uranium stockpiles, and sanctions relief. While mediators from Qatar and Pakistan report “promising advancements,” critical disputes remain unresolved, including the status of Iran’s enriched uranium reserves and the specifics of sanctions removal, with Washington yet to confirm Iranian claims of $12 billion in frozen assets released[1][2].

Historical precedents suggest that such initial frameworks often stall when technical details surface; the 2015 Joint Comprehensive Plan of Action similarly faced prolonged negotiations over enrichment limits before finalisation, and past US-Iran dialogues have frequently collapsed due to divergent interpretations of compliance[6]. With the current crowd-implied probability at 0% YES, markets reflect scepticism that a mutually signed written instrument will materialise by the August 2026 deadline, particularly given Iran’s known tendency to delay negotiations to extract concessions[3].

Traders should monitor upcoming announcements on IAEA inspector access, scheduled for potential implementation as early as next Monday, and any US verification of asset releases or sanctions lifts[1][2]. Divergence between prediction platforms is stark here: Polymarket offers decimal odds with minimal KYC and lower fees, whereas Kalshi requires full identity verification and trades implied probabilities with higher regulatory oversight, while Betfair and Smarkets impose varying fee structures that could impact liquidity on this binary outcome[1]. The settlement window ends 2026-08-31, leaving little time for breakthroughs if technical hurdles persist.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares US-Iran Final Nuclear Deal by…? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

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.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

What does it cost to trade on PolyGram?

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

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.

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.