Resolution criteria on PolyGram: This market will resolve to "Yes" if there is a diplomatic meeting between JD Vance as representative of the United States and Iran by the listed date, 11:59 PM ET. Otherwise, this market will resolve to “No”. To qualify, JD Vance must be physically present at the meeting and actively participate as a negotiator representing the United States. A diplomatic meeting refers to a deliberate meeting between representatives of the listed countries who are acting in an official capacity and are authorized to engage in negotiation or diplomacy regarding US-Iranian relations on behalf of their governments.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| May 15 | 2% YES | 98% NO |
| June 30 | 39% YES | 62% NO |
| May 31 | 19% YES | 82% NO |
The question hinges on whether Vice President JD Vance will participate directly in a diplomatic meeting with Iranian representatives by end of June 2026. This would require both physical presence and active negotiating role on behalf of the United States, a notably high bar given current US-Iran relations and Vance's position within the Trump administration.
Historical precedent suggests such high-level engagement remains uncommon. The last substantive US-Iran diplomatic talks occurred under the JCPOA framework, which the Trump administration withdrew from in 2018. Since then, direct negotiations have been sporadic and typically conducted through intermediaries or lower-ranking officials. Vice-presidential participation in Iran talks would represent a significant diplomatic shift, comparable to the Obama administration's back-channel negotiations that preceded the 2015 nuclear deal. The current 5% implied probability on Polymarket's order book reflects scepticism about such a reversal occurring within the 18-month window.
Traders should monitor several catalysts: any announced US-Iran talks through Omani or Swiss mediation channels, shifts in Iranian leadership following their 2024 elections, and statements from the Trump administration regarding nuclear negotiations or sanctions relief. Recent reporting from Reuters and AP News has covered ongoing tensions around Iran's nuclear programme, though no formal diplomatic engagement has been signalled. The settlement criteria require Vance's direct participation rather than mere US representation, which further constrains the probability. Any credible announcement of scheduled talks involving the Vice President would likely move this market substantially.
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a two-hour dispute window opens, and if no one stakes a counter-claim the payout is final. Contested outcomes escalate to UMA token-holder voting. Payouts clear in USDC to the winning side.
The mechanics for trading "JD Vance diplomatic meeting with Iran by...?" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
$78K in lifetime turnover and $49K of resting liquidity puts this market in the above the median by volume for iran contracts on PolyGram. Order-book depth is strong — order books support five-figure trades with single-cent slippage.
Last 24 hours alone saw $9K in turnover, well above the lifetime daily-average for this market — a clear sign of news catalysing trader activity right now.
The market has been open for under a month — fresh enough that information asymmetry remains a real factor.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a 2-hour dispute window opens, and if uncontested the payout is final. Contested outcomes escalate to UMA token holders.
This prediction market is scheduled to close on 30 June 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
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