US announces halt in Iran offensive operations by 2026?

Platform comparison

Market context

The underlying event is a **public, official US statement** that offensive military action against Iran has ended, been suspended, or is otherwise being halted. In practice, that means traders need to watch for wording from the White House, the President, the Pentagon, or an authorised official that clearly covers offensive operations rather than narrower defensive pauses or shipping-protection missions.

Historical pricing has usually snapped towards certainty only when the US military or the President has made an explicit ceasefire or halt announcement. Recent reporting shows that Washington has already used language such as “halting offensive operations” and “all offensive operations to cease” in prior Iran-related episodes, often while stressing that defensive activity continued and that any pause could be temporary or conditional.[1][4][8][11] That makes a 0% implied probability look less like a pure impossibility and more like a market waiting for a fresh, unambiguous statement in the settlement window, especially because programmatic setups will typically key off exact phrasing, timestamps, and source authentication rather than headlines alone.

For a power-user tracking this systematically, the main catalysts are official readouts, presidential social posts, Pentagon briefings, and any cabinet-level confirmation that offensive action has been terminated rather than merely paused. Reuters and other live coverage have shown that ceasefire language can appear alongside narrow operational caveats, including temporary truces tied to maritime access or talks, so bots that scrape only the first headline may misclassify the event unless they parse the body text for conditions and scope.[11][14] The useful signal is not “de-escalation” in general, but a verifiable US announcement that offensive operations against Iran have stopped before the 2026-08-31 deadline.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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 does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.