Skip to main content

icon for US-Iran nuclear deal by May 31?
Geopolitics·Iran Ceasefire

US-Iran nuclear deal by May 31?

icon for US-Iran nuclear deal by May 31?
Geopolitics·Iran Ceasefire

US-Iran nuclear deal by May 31?

May 31

Jun 30

Dec 31

May 31

Jun 30

Dec 31

12% chance
Polymarket

$542,822 Vol.

12% chance
Polymarket

$542,822 Vol.

This market will resolve to "Yes" if an official agreement over Iranian nuclear research and/or nuclear weapon development, defined as a publicly announced mutual agreement, is reached between the United States and Iran by May 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. If such an agreement is officially reached before the resolution date, this market will resolve to "Yes", regardless of if/when the agreement goes into effect. Agreements that include the United States and Iran as parties, even if they also involve other countries (e.g., a multilateral deal like the JCPOA), will qualify for resolution. The primary resolution source for this market will be an official announcement by the United States and/or the Islamic Republic of Iran, however an overwhelming consensus of credible reporting confirming an agreement has been reached will also qualify.Trader consensus on Polymarket prices "No" at 88.5% for a US-Iran nuclear deal by May 31, driven by irreconcilable gaps on Iran's uranium enrichment limits, facility dismantlement at Fordow and Natanz, and highly enriched uranium handover demands. Despite progress toward a one-page memorandum of understanding—reportedly under Iranian review as of May 6 to end hostilities, lift Strait of Hormuz blockades, and initiate 30-day nuclear talks—President Trump stated two days ago the ceasefire is on "life support," signaling impasse amid mutual accusations of violations. Historical mistrust, sanctions disputes, and Trump's escalation threats leave scant time for breakthroughs before the deadline, aligning with base rates of protracted diplomacy in such high-stakes negotiations.

This market will resolve to "Yes" if an official agreement over Iranian nuclear research and/or nuclear weapon development, defined as a publicly announced mutual agreement, is reached between the United States and Iran by May 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.

If such an agreement is officially reached before the resolution date, this market will resolve to "Yes", regardless of if/when the agreement goes into effect.

Agreements that include the United States and Iran as parties, even if they also involve other countries (e.g., a multilateral deal like the JCPOA), will qualify for resolution.

The primary resolution source for this market will be an official announcement by the United States and/or the Islamic Republic of Iran, however an overwhelming consensus of credible reporting confirming an agreement has been reached will also qualify.
Volume
$542,822
End Date
May 31, 2026
Market Opened
Apr 28, 2026, 10:39 PM ET

Resolver

0x65070BE91...
This market will resolve to "Yes" if an official agreement over Iranian nuclear research and/or nuclear weapon development, defined as a publicly announced mutual agreement, is reached between the United States and Iran by May 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. If such an agreement is officially reached before the resolution date, this market will resolve to "Yes", regardless of if/when the agreement goes into effect. Agreements that include the United States and Iran as parties, even if they also involve other countries (e.g., a multilateral deal like the JCPOA), will qualify for resolution. The primary resolution source for this market will be an official announcement by the United States and/or the Islamic Republic of Iran, however an overwhelming consensus of credible reporting confirming an agreement has been reached will also qualify.
This market will resolve to "Yes" if an official agreement over Iranian nuclear research and/or nuclear weapon development, defined as a publicly announced mutual agreement, is reached between the United States and Iran by May 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. If such an agreement is officially reached before the resolution date, this market will resolve to "Yes", regardless of if/when the agreement goes into effect. Agreements that include the United States and Iran as parties, even if they also involve other countries (e.g., a multilateral deal like the JCPOA), will qualify for resolution. The primary resolution source for this market will be an official announcement by the United States and/or the Islamic Republic of Iran, however an overwhelming consensus of credible reporting confirming an agreement has been reached will also qualify.Trader consensus on Polymarket prices "No" at 88.5% for a US-Iran nuclear deal by May 31, driven by irreconcilable gaps on Iran's uranium enrichment limits, facility dismantlement at Fordow and Natanz, and highly enriched uranium handover demands. Despite progress toward a one-page memorandum of understanding—reportedly under Iranian review as of May 6 to end hostilities, lift Strait of Hormuz blockades, and initiate 30-day nuclear talks—President Trump stated two days ago the ceasefire is on "life support," signaling impasse amid mutual accusations of violations. Historical mistrust, sanctions disputes, and Trump's escalation threats leave scant time for breakthroughs before the deadline, aligning with base rates of protracted diplomacy in such high-stakes negotiations.

This market will resolve to "Yes" if an official agreement over Iranian nuclear research and/or nuclear weapon development, defined as a publicly announced mutual agreement, is reached between the United States and Iran by May 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.

If such an agreement is officially reached before the resolution date, this market will resolve to "Yes", regardless of if/when the agreement goes into effect.

Agreements that include the United States and Iran as parties, even if they also involve other countries (e.g., a multilateral deal like the JCPOA), will qualify for resolution.

The primary resolution source for this market will be an official announcement by the United States and/or the Islamic Republic of Iran, however an overwhelming consensus of credible reporting confirming an agreement has been reached will also qualify.
Volume
$542,822
End Date
May 31, 2026
Market Opened
Apr 28, 2026, 10:39 PM ET

Resolver

0x65070BE91...
This market will resolve to "Yes" if an official agreement over Iranian nuclear research and/or nuclear weapon development, defined as a publicly announced mutual agreement, is reached between the United States and Iran by May 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. If such an agreement is officially reached before the resolution date, this market will resolve to "Yes", regardless of if/when the agreement goes into effect. Agreements that include the United States and Iran as parties, even if they also involve other countries (e.g., a multilateral deal like the JCPOA), will qualify for resolution. The primary resolution source for this market will be an official announcement by the United States and/or the Islamic Republic of Iran, however an overwhelming consensus of credible reporting confirming an agreement has been reached will also qualify.

Related

icon for New Rihanna Album before GTA VI?

New Rihanna Album before GTA VI?

52%
icon for Will Harvey Weinstein be sentenced to no prison time?

Will Harvey Weinstein be sentenced to no prison time?

30%
icon for Will the Carolina Hurricanes win the 2026 NHL Stanley Cup?

Will the Carolina Hurricanes win the 2026 NHL Stanley Cup?

38%

Beware of external links.

Frequently Asked Questions

"US-Iran nuclear deal by May 31?" is a prediction market on Polymarket where traders buy and sell "Yes" or "No" shares based on whether they believe this event will happen. The current crowd-sourced probability is 12% for "Yes." For example, if "Yes" is priced at 12¢, the market collectively assigns a 12% chance that this event will occur. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "US-Iran nuclear deal by May 31?" has generated $542.8K in total trading volume since the market launched on Apr 29, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "US-Iran nuclear deal by May 31?," simply choose whether you believe the answer is "Yes" or "No." Each side has a current price that reflects the market's implied probability. Enter your amount and click "Trade." If you buy "Yes" shares and the outcome resolves as "Yes," each share pays out $1. If it resolves as "No," your "Yes" shares pay $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current probability for "US-Iran nuclear deal by May 31?" is 12% for "Yes." This means the Polymarket crowd currently believes there is a 12% chance that this event will occur. These odds update in real-time based on actual trades, providing a continuously updated signal of what the market expects to happen.

The resolution rules for "US-Iran nuclear deal by May 31?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.