US-Iran nuclear deal?
Short Answer
The model assigns meaningfully lower odds than the market for a US-Iran nuclear deal Before Jan 20, 2029 (model 64.2% vs. market 77.0%), reflecting expert skepticism about reaching a comprehensive agreement due to numerous technical and political hurdles.
1. Executive Verdict
- Since last update (~13d): "Before May" and "Before June" outcomes resolved "no," causing model probabilities to drop 35.0pp each.
- Model's "Before July" probability decreased 33.9pp; the edge flipped as the market fell 10.0pp.
- For "Before August" and "Before September," the model dropped over 23pp, with edges flipping.
- The model increased 17.0pp for "Before 2028" while the edge compressed, model-led.
- US and Iran signed MoU on June 18, 2026, initiating 60-day negotiations.
- Experts express significant skepticism a comprehensive deal will be reached by 2027.
- Numerous technical and political hurdles challenge a comprehensive nuclear deal.
- The 2026 MoU significantly differs from the previous 2015 JCPOA agreement.
- MoU provides for immediate US sanctions waivers on Iranian oil.
- Regional powers may significantly impact US-Iran negotiations through 2026.
Who Wins and Why
| Outcome | Market | Model | Why |
|---|---|---|---|
| Before August | 7.5% | 4.3% | Experts deem a deal unlikely before August due to the negotiation window and complexity. |
| Before September | 19.0% | 11.1% | Experts are largely skeptical a comprehensive nuclear deal will be reached before September 2026. |
| Before October | 27.0% | 16.0% | Experts are skeptical a comprehensive nuclear deal will be reached before October 2026 given technical and political hurdles. |
| Before November | 38.0% | 23.3% | Experts express skepticism a comprehensive nuclear deal will be reached before November 2026 due to numerous hurdles. |
| Before December | 44.0% | 27.7% | Experts are largely skeptical a comprehensive nuclear deal will be reached before December 2026 due to hurdles. |
Current Context
The US and Iran signed a 14-point ceasefire framework. As of June 18, 2026, the United States and Iran have signed a 14-point Memorandum of Understanding (MoU), which functions as a ceasefire framework and includes the reopening of the Strait of Hormuz [^][^][^]. This agreement establishes a 60-day period for negotiations towards a final peace and nuclear agreement [^][^]. The MoU itself does not constitute a comprehensive nuclear deal; it reaffirms Iran's commitment not to develop nuclear weapons and obligates both sides to discuss the disposition of Iran's enriched uranium stockpile through on-site downblending under IAEA supervision [^][^][^]. However, decisions on future enrichment and other technical nuclear issues are postponed [^][^][^]. The agreement provides immediate benefits to Iran, such as US waivers allowing unrestricted oil sales, while imposing few immediate tangible constraints, which has led to criticism regarding the perceived asymmetry of concessions [^][^][^].
Experts are largely skeptical a comprehensive nuclear settlement will be reached. Analysts and experts express significant doubt that a comprehensive nuclear settlement can be achieved within the initial 60-day negotiating window [^][^][^]. This skepticism stems from the complexity of technical requirements, deep-seated mutual distrust between the parties, and a lack of consensus on fundamental issues like Iran's right to uranium enrichment [^][^][^]. Despite ongoing talks, which are described as being in a fragile phase, some reports indicate progress towards a peace agreement even amid fresh skirmishes [^][^][^]. Former President Trump also asserted that Israeli Prime Minister Benjamin Netanyahu would need to accept any US deal with Iran, stating, "I call the shots" [^].
Financial markets responded positively to news of the draft deal. As details emerged about the preliminary US-Iran deal, financial markets reacted favorably, with futures moving higher and all three stock indexes rallying by at least 1.8% [^]. Sources indicate that a preliminary agreement has been reached to extend the ceasefire by 60 days and continue discussions on future terms [^]. While the US is touting progress in the ongoing negotiations, the situation remains delicate and requires further resolution [^][^][^].
2. Market Behavior & Price Dynamics
Historical Price (Probability)
Outcome probability
Date
This prediction market has followed a general downward trend, starting at a 10.0% probability and currently trading at 2.0%. The price action was marked by extreme volatility in mid-June, with the probability fluctuating between a low of 7.0% and a high of 27.0%. A significant spike of 14.0 percentage points occurred on June 11, followed by a series of sharp movements, including a 12.0 percentage point drop on June 16 and a final 20.0 percentage point drop on June 18 that brought the price to its current low.
The major price movements appear to be directly linked to news surrounding a US-Iran Memorandum of Understanding (MoU). Reports that a preliminary MoU was reached to start a 60-day negotiation period seem to have caused initial market confusion and volatility. However, the definitive price collapse on June 18 was driven by the confirmation that the two countries had signed the framework. Traders appear to have interpreted this news negatively for the market's resolution, concluding that a 60-day negotiation window makes a final nuclear deal within the market's timeframe highly unlikely. The trading volume was notably higher during these news-driven price swings, suggesting strong conviction behind the market's reaction.
Overall, the chart suggests a deeply pessimistic market sentiment regarding the likelihood of a US-Iran nuclear deal by the resolution date. The current 2.0% price indicates traders assign a very low probability to a "Yes" outcome. The price level around 27.0% acted as a significant resistance point that the market could not sustain. The current price near 2.0% is acting as a support level, representing the market's floor for the probability of a deal being reached.
3. Significant Price Movements
Notable price changes detected in the chart, along with research into what caused each movement.
Outcome: Before August
📉 June 18, 2026: 24.0pp drop
Price decreased from 32.0% to 8.0%
What happened: The primary driver of the 24.0 percentage point drop in the "US-Iran nuclear deal?" market for an outcome "Before August" on June 18, 2026, was the previous day's announcement of a US-Iran Memorandum of Understanding (MoU) [^][^]. This MoU, declared on June 17, 2026, established a 60-day window for negotiations on a comprehensive final peace agreement, including nuclear terms [^][^]. By setting a negotiation timeline that would extend beyond August, this official announcement significantly decreased the market's perceived likelihood of a deal being finalized before that month [^][^][^]. Social media activity, which reported debate among Iranians reacting to the MoU [^][^], appears to have been mostly noise or a contributing accelerant rather than a primary driver of this specific market timing shift.
📈 June 17, 2026: 14.0pp spike
Price increased from 13.0% to 27.0%
What happened: The web research does not identify any specific social media activity from key figures or viral narratives that directly caused the 14.0 percentage point spike on June 17, 2026. The primary driver was the traditional news coverage of the US-Iran Memorandum of Understanding (MoU), which was digitally signed on June 14, 2026, to extend a ceasefire and initiate 60 days of negotiations on a final peace agreement [^][^]. This diplomatic development had already prompted a 17.5 percentage point surge in prediction markets on June 14, 2026, driven by reports of the emerging MoU [^]. The subsequent spike on June 17th likely reflects continued market assimilation of the deal's implications as details emerged [^][^], outweighing contemporaneous reports of domestic Iranian backlash against the agreement [^][^][^]. Social media was irrelevant as a primary or contributing driver for this specific price movement.
📉 June 14, 2026: 11.0pp drop
Price decreased from 31.0% to 20.0%
What happened: The primary driver of the market's 11.0 percentage point drop was the announcement by Donald Trump on June 14, 2026, that a deal to end the US-Iran war would be signed that day [^][^]. This agreement was a memorandum of understanding initiating 60 days of negotiations toward a final agreement, including on Iran's nuclear program [^][^][^][^]. The commencement of a 60-day negotiation period on June 14 meant a final nuclear deal was unlikely to be finalized "Before August" (August 13), leading to the market's revised expectation. While the provided sources do not explicitly state that Trump's declaration originated as a social media post, his direct public statement [^][^] coincided with the market move and likely saw rapid dissemination, with social media acting as a significant accelerant.
Outcome: Before July
📉 June 16, 2026: 12.0pp drop
Price decreased from 22.0% to 10.0%
What happened: The 12.0 percentage point drop on June 16, 2026, was primarily driven by traditional news reporting that the US and Iran reached a preliminary memorandum of understanding (MoU) to initiate 60 days of negotiations for a final deal [^][^][^]. This agreement, reported around the time of the market movement, signaled that a comprehensive deal would not be reached "Before July" [^][^]. While social media in Iran experienced significant debate and polarization following the MoU [^], these reactions appear to have coincided with or lagged the initial news, making traditional news the primary driver.
Outcome: Before October
📉 June 15, 2026: 22.0pp drop
Price decreased from 53.0% to 31.0%
What happened: The primary driver of the 22.0 percentage point drop was the traditional news announcement on June 14, 2026, that the United States and Iran had reached a Memorandum of Understanding (MoU) [^][^][^]. This MoU initiated a 60-day negotiation period to finalize a peace deal, including commitments on nuclear weapons and a reconstruction fund, rather than securing an immediate, final agreement [^][^]. This shift to a negotiation timeline, which implied inherent uncertainty and a delay in finalization, likely lowered the market's confidence in a deal being fully completed before October. Concurrently, Iranian social media displayed a mix of relief, "distrust, and anger" towards the deal [^][^], with these widespread public reactions likely coinciding with and acting as a contributing accelerant to the market's re-evaluation. Social media was a contributing accelerant, amplifying skepticism already initiated by the official news.
4. Market Data
Contract Snapshot
This market resolves "Yes" if the United States agrees to, signs, or accepts a new formal written Iran-US nuclear deal before January 1, 2027. This deal must impose verifiable restrictions on Iran's nuclear program (with concrete, objectively ascertainable standards) and include the lifting or modification of at least one US economic sanction on Iran. Public agreement to the terms by both governments is sufficient for a "Yes" resolution, even without formal signing; otherwise, the market resolves "No" when it closes by January 1, 2027.
Available Contracts
Market options and current pricing
| Outcome bucket | Yes (price) | No (price) | Last trade probability |
|---|---|---|---|
| Before August | $0.08 | $0.93 | 8% |
| Before September | $0.20 | $0.81 | 19% |
| Before October | $0.28 | $0.73 | 27% |
| Before November | $0.38 | $0.63 | 38% |
| Before December | $0.44 | $0.57 | 44% |
| Before 2027 | $0.48 | $0.53 | 48% |
| Before 2028 | $0.76 | $0.28 | 76% |
| Before Jan 20, 2029 | $0.82 | $0.20 | 77% |
Market Discussion
The US and Iran formalized a 14-point memorandum of understanding (MoU) on June 17, 2026, aimed at ending conflict, reopening the Strait of Hormuz, and establishing a 60-day window for negotiations on a comprehensive peace deal, including nuclear limits [^][^]. While the Trump administration frames the MoU as a diplomatic victory [^], critics characterize it as a "surrender" lacking sufficient nuclear guarantees, reflecting deep polarization in public discussion both internationally and within Iran [^][^][^][^]. Prediction markets show deep uncertainty, with probabilities for a final deal by October 2026 priced at roughly 52% as of mid-June 2026 [^][^][^].
5. What are the key potential deal-breakers for the US and Iran during the 60-day negotiation window established by the June 18 MoU?
| Uranium down-blending methodology | Technical disagreements over methodology for down-blending Iran's highly enriched uranium [^][^][^] |
|---|---|
| Sanctions relief | Sequencing and scope of sanctions relief, including frozen funds [^][^][^] |
| Deal endorsement | Binding UN Security Council resolution required [^][^][^] |
Technical and economic issues pose significant hurdles in US-Iran negotiations. Disagreements persist regarding the methodology for down-blending Iran's highly enriched uranium, the sequencing and scope of sanctions relief, including the release of frozen funds, and the mechanisms for monitoring Iran's nuclear program [^][^][^]. Further critical points involve the final status of transit fees in the Strait of Hormuz and the specifics of a proposed $300 billion reconstruction and economic development plan for Iran [^][^][^].
Achieving a final agreement faces significant political and endorsement challenges. An overarching requirement dictates that a final deal must be endorsed by a binding UN Security Council resolution [^][^][^]. Iran's stance on Lebanon has also notably hindered progress, leading to reported clashes between the US and Israel that could jeopardize the broader discussions [^][^]. Skeptics express concern that the parties may fail to bridge these complex gaps, potentially leading to the expiration of the 60-day window without a formal nuclear deal [^][^].
6. What technical and political hurdles are cited by experts to suggest a comprehensive nuclear deal is unlikely by the end of 2026?
| Negotiation Timeline | 60 days (established June 2026 memorandum) [^][^][^][^][^][^] |
|---|---|
| 2015 JCPOA Negotiation Period | 20 months [^][^][^][^][^][^] |
| Expected Deal By | Late 2026 (experts skeptical) [^][^][^][^][^][^] |
Experts doubt a comprehensive nuclear deal will finalize by late 2026. This unlikelihood is primarily attributed to an aggressive 60-day negotiation timeline, set forth in a June 2026 memorandum, which stands in stark contrast to the 20-month period required for the 2015 JCPOA. This compressed timeframe, alongside significant technical and political disagreements, reduces the likelihood of a deal [^][^][^][^][^][^].
Technical disagreements primarily concern Iran's nuclear program specifics. Key issues include profound disagreements over the disposal or destruction of Iran's near-bomb-grade uranium stockpile. Additional technical challenges involve debates about future enrichment rights and the necessary level of international inspections by the IAEA [^][^][^][^][^][^].
Political obstacles in the U.S. pose substantial challenges. Significant domestic opposition arises from both Republican and Democratic lawmakers, alongside pro-Israel advocates. This is exacerbated by potential congressional resistance regarding the deal's final approval process. Analysts also highlight risks such as a perceived lack of technical expertise within the U.S. negotiating team and the potential for volatile rhetoric from President Trump to disrupt negotiations [^][^][^][^][^].
7. How do the key provisions of the June 2026 MoU differ from the original 2015 JCPOA regarding uranium enrichment and sanctions relief?
| Nature of Agreement | JCPOA (2015): Detailed, multilateral technical agreement; MoU (2026): High-level, bilateral framework [^][^][^][^] |
|---|---|
| Uranium Enrichment Detail | JCPOA (2015): Outlined specific caps, limits, inspections [^]; MoU (2026): Left to 60-day negotiation [^][^][^][^] |
| Sanctions Relief Structure | JCPOA (2015): Phased, verifiable, linked to nuclear rollbacks [^][^]; MoU (2026): Future commitment in 'final deal' [^][^] |
The 2026 MoU significantly differs from the 2015 JCPOA in structure. The 2015 Joint Comprehensive Plan of Action (JCPOA) was a detailed, multilateral technical agreement, whereas the June 2026 Memorandum of Understanding (MoU) serves as a high-level, bilateral framework [^][^][^][^]. The MoU defers most specific elements to subsequent negotiations, contrasting with the JCPOA's granular provisions [^][^][^][^].
Uranium enrichment provisions in the MoU are less detailed than the JCPOA. Regarding uranium enrichment, the 2015 JCPOA provided specific details on enrichment caps, centrifuge limits, and inspection mechanisms [^]. In contrast, the 2026 MoU acts primarily as a framework, leaving these technical nuclear details, including specific caps and inspection mechanisms, to be negotiated over a 60-day period [^][^][^][^]. Despite this, the MoU does affirm Iran's commitment not to develop nuclear weapons and stipulates that existing enriched uranium must be addressed through a mutually agreed mechanism, which includes on-site down-blending under IAEA supervision [^][^][^].
Sanctions relief mechanisms also diverge significantly between the agreements. The 2015 JCPOA outlined a phased and verifiable schedule for sanctions relief, directly linking it to specific nuclear rollbacks [^][^]. Conversely, the 2026 MoU structures sanctions relief as a future commitment that will be finalized as part of a potential "final deal" [^][^].
8. What actions by regional powers like Israel or Saudi Arabia could significantly impact the US-Iran negotiations through the rest of 2026?
| Israel's Impact on Negotiations | Major threat to successful conclusion due to potential deal sabotage [^][^][^][^] |
|---|---|
| Israel's Stance on Sanctions | Intense opposition to sanctions relief for Iran [^][^][^][^] |
| Saudi Arabia's Role | Eased restrictions on US military activities, facilitating diplomacy, and pushing for a diplomatic solution [^][^][^][^] |
Regional powers such as Israel and Saudi Arabia are positioned to significantly influence US-Iran negotiations through 2026. Israel is widely regarded as a major threat to the successful outcome of these negotiations, primarily due to its strong opposition to providing sanctions relief for Iran and its potential to sabotage any agreement [^][^][^][^]. Concerns in Israel include the possibility that a new agreement could provide billions in funds to Tehran, and its influence is perceived as undermining US-Iran diplomatic efforts [^][^]. Mediators have, at times, resorted to secrecy and misinformation to prevent Israel from disrupting a potential US-Iran deal [^].
Conversely, Saudi Arabia plays a more constructive role in diplomatic efforts. Despite its complex involvement, Saudi Arabia's actions appear more beneficial for the diplomatic process [^]. The nation has reportedly eased restrictions on US military activities within the region, thereby facilitating US diplomatic initiatives [^][^][^]. Alongside Qatar and the UAE, Saudi Arabia is actively pushing for a diplomatic resolution to the situation [^].
9. What is the estimated economic impact for Iran resulting from the US sanctions waivers on oil sales under the June 2026 MoU?
| Estimated Oil Export Increase | 0.7–1.5 million barrels per day (mb/d) [^][^][^] |
|---|---|
| Unfrozen Assets Target | $100 billion to $167 billion [^][^][^] |
| Reconstruction Incentive | $300 billion [^][^][^] |
The June 2026 MoU immediately waives US sanctions on Iranian oil. This memorandum of understanding between the US and Iran provides for immediate US sanctions waivers on Iranian crude oil, petroleum products, and associated services such as banking, insurance, and transportation [^][^][^]. Analysts anticipate these waivers will significantly increase Iran's government revenue, estimating that oil exports could rise by 0.7–1.5 million barrels per day (mb/d), potentially reaching a total of approximately 2.0–3.0 mb/d [^][^][^].
Additional economic benefits are contingent on Iran's compliance and a finalized deal. The MoU also includes a potential $300 billion incentive for reconstruction and economic development in Iran [^][^][^]. Furthermore, it aims to unfreeze an estimated $100 billion to $167 billion in restricted Iranian assets [^][^][^]. However, all these additional economic benefits are contingent upon Iran's compliance and the finalization of a comprehensive deal, with prediction markets reflecting uncertainty regarding the signing of a formal US-Iran nuclear deal by mid-to-late 2026 [^][^][^][^][^].
10. What Could Change the Odds
Key Catalysts
As of June 18, 2026, the US and Iran have signed a 14-point memorandum of understanding (MoU) to extend a ceasefire and initiate a 60-day negotiation period to reach a comprehensive final nuclear deal [^] [^] [^] [^] . - BBC News">[^][^][^]. This framework commits Iran to never procure or develop a nuclear weapon, with immediate plans to manage current enriched uranium stockpiles via on-site downblending under IAEA supervision, while the US commits to no new sanctions or force deployment during the interim [^][^][^]. Prediction markets currently estimate a high probability (approx. 79%) for a nuclear deal before 2029 [^]. Major bullish catalysts for such a deal include economic pressure on Iran to secure sanctions relief and the success of the current ceasefire [^].
Despite this, key obstacles remain, including the handling of Iran's existing near-bomb-grade uranium, future enrichment limits, and inspection rigors [^] [^] . - The Japan Times">[^][^]. Regional conflicts such as the war in Lebanon also persist as primary spoilers for a final settlement [^][^][^]. The estimated high probability for a deal is tempered by skepticism over the current 60-day window and risks of regime instability or hardline policy shifts in either country [^]. Bearish catalysts include persistent Iranian demands to retain some enrichment capabilities, US 'zero-enrichment' requirements, and potential domestic political shifts by 2029 [^].
Key Dates & Catalysts
- Expiration: May 01, 2026
- Closes: January 20, 2029
11. Decision-Flipping Events
- Trigger: As of June 18, 2026, the US and Iran have signed a 14-point memorandum of understanding (MoU) to extend a ceasefire and initiate a 60-day negotiation period to reach a comprehensive final nuclear deal [^] [^] [^] [^] .
- Trigger: This framework commits Iran to never procure or develop a nuclear weapon, with immediate plans to manage current enriched uranium stockpiles via on-site downblending under IAEA supervision, while the US commits to no new sanctions or force deployment during the interim [^] [^] [^] .
- Trigger: Prediction markets currently estimate a high probability (approx.
- Trigger: 79%) for a nuclear deal before 2029 [^] .
13. Related News
Last updated: June 18, 2026, 13:09 UTC
Skepticism Over 60-Day Iran Talks Timeline Drives Down Near-Term Deal Odds
The release of details from a new U.S.-Iran memorandum of understanding has prompted traders to sharply discount the odds of a comprehensive peace deal being reached in the near term. The agreement, s...
Last updated: June 18, 2026, 13:09 UTC
US-Iran Deal Odds Surge for 2026 After Trump Announcement
The prediction market for a US-Iran nuclear deal experienced a significant repricing on Saturday, May 23, 2026, following President Donald Trump’s announcement that an agreement has been "largely nego...
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US-Iran Deal Market Shifts Timeline to Autumn 2026
In the trading session on Friday, May 22, 2026, the prediction market for a new US-Iran nuclear agreement saw a significant repricing of its expected timeline. Probabilities for a deal being reached i...
Last updated: June 18, 2026, 13:09 UTC
Market Boosts Odds of Summer US-Iran Deal on Diplomatic Progress
The prediction market for a US-Iran nuclear deal shifted significantly on Wednesday, May 06, 2026, as traders repriced for a much shorter timeline to an agreement. Probabilities surged across all time...
Last updated: June 18, 2026, 13:09 UTC
US-Iran Deal Hopes Dim for Summer as Market Prices in Delays
In a significant repricing on Thursday, April 18, 2026, the prediction market for a US-Iran nuclear deal shifted to reflect lower odds of an agreement in the coming months. The move saw six of the eig...
14. Historical Resolutions
Historical Resolutions: 2 markets in this series
Outcomes: 0 resolved YES, 2 resolved NO
Recent resolutions:
- KXUSAIRANAGREEMENT-27-26JUN: NO (Jun 01, 2026)
- KXUSAIRANAGREEMENT-27-26MAY: NO (May 01, 2026)
