US announces new Iran agreement/ceasefire extension?

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Active sub-markets

Market context

The U.S. and Iran have maintained an undeclared ceasefire since April 2024, following tit-for-tat missile exchanges. This market asks whether the Biden or Trump administration will formally announce an extension or new diplomatic framework codifying that halt in direct military operations before the specified deadline. The 76% crowd probability across major platforms reflects moderate confidence in a public statement, though the definition hinges on an "official announcement"—a threshold that has historically proven ambiguous when U.S.–Iran relations involve back-channel diplomacy or tacit understandings rather than signed documents.

Previous U.S.–Iran agreements offer instructive precedent. The Joint Comprehensive Plan of Action (JCPOA) in 2015 involved months of negotiation before formal announcement; the Trump administration's 2020 withdrawal demonstrated how quickly such frameworks can collapse. More recently, the November 2023 prisoner exchange and the April 2024 ceasefire both involved rapid diplomatic movement following military escalation. Current market divergence between Polymarket (decimal odds around 3.5–4.0) and Kalshi (implied probability 76%) suggests traders on the latter platform weight near-term announcement likelihood higher, possibly reflecting different user bases' assessments of Trump administration intentions post-January 2025.

Traders should monitor State Department briefings, UN Security Council activity, and any statements from the Iranian foreign ministry. Reuters and AP have tracked ceasefire stability closely; any significant border incident or proxy activity would reset expectations. The resolution criterion—requiring only a "publicly announced commitment"—means even a joint statement or presidential remarks could trigger a "Yes" resolution, lowering the bar compared to a formal treaty. Fee structures on Kalshi (0.4% taker fee) versus Smarkets (2% commission) will affect position sizing for longer-duration holds into the deadline.

Methodology

This page compares US announces new Iran agreement/ceasefire extension? 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

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

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.

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 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.

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.