Recent developments in US-Iran relations center on stalled follow-up talks after the first direct high-level meeting in Islamabad, Pakistan, on April 11-12, 2026, which produced no agreement despite a preceding two-week ceasefire. Iranian officials have outlined firm preconditions for further engagement, including security guarantees, an end to attacks, war reparations, and recognition of sovereignty over the Strait of Hormuz, while reviewing a proposed one-page memorandum that could separate navigation issues from nuclear matters. US negotiators, including Vice President JD Vance and special envoys, presented terms focused on the nuclear program and regional stability, but Iran has not committed to a new round. No date has been set for additional diplomacy, and President Trump has signaled ongoing efforts amid broader regional tensions, leaving the timeline for any meeting by late June dependent on whether both sides bridge gaps on sanctions relief and verification.
สรุปจาก AI ทดลองที่อ้างอิงข้อมูลจาก Polymarket ไม่ใช่คำแนะนำในการเทรดและไม่มีผลต่อการตัดสินตลาดนี้ · อัปเดตแล้วIran’s army chief warns of pre‑emptive attack after US rhetoric
Maj. Gen. Amir Hatami’s threat of a pre‑emptive strike heightened the risk of escalation, pulling the May 31 price down to 25% and the June 30 price to 55% as traders priced in a lower chance of a diplomatic meeting.
Trump extends ceasefire but maintains naval blockade of Iranian ports
May 15 drops to 0%14%
While the ceasefire extension offered a glimmer of hope, the continued U.S. blockade signaled that substantive diplomatic engagement, especially a high‑level meeting, remained unlikely, pushing the May 15 outcome to zero.
UK leads international talks pressing Iran to reopen Strait of Hormuz
June 30 dips to 59%1%
Diplomats from over 40 countries met virtually to pressure Iran to reopen the Strait of Hormuz, emphasizing diplomatic efforts but with the US absent, reflecting limited direct US-Iran engagement and dampening market optimism for imminent meetings.
Iran army chief threatens preemptive attack amid rising rhetoric
June 30 dips to 57%3%
Iran’s army chief threatened preemptive military action in response to hostile rhetoric, signaling heightened tensions and reducing prospects for diplomatic engagement. This statement contributed to market declines in the likelihood of a US-Iran diplomatic meeting by June 30.
Iran fully closes Strait of Hormuz again
May 15 drops to 0%12%
Iran re‑closed the Strait of Hormuz on May 14, worsening the strategic outlook and driving the price for a May 15 meeting to its lowest point.
Market reaches endpoint: Yes probability 0% for May‑15 meeting
May 15 dips to 0%2%
By the end of the analysis window, no credible diplomatic progress had occurred, leaving the market at zero confidence for a meeting before May 15.
U.S. announces pause on Project Freedom after diplomatic pushback
June 30 rises to 60%1%
Trump halted the ship‑guidance initiative to allow more time for diplomatic negotiations, briefly raising hopes for a meeting and nudging the June 30 price up to 60% from 59%.
Trump rejects Iran’s latest proposal to end war, citing fractured leadership
June 30 drops to 59%5%
President Trump dismissed Iran’s recent peace proposal delivered via Pakistani mediators, prolonging diplomatic stalemate and causing a decline in market prices for the June 30 meeting.
Iran’s army chief threatens pre‑emptive attack over U.S. rhetoric
May 31 drops to 24%6%
The threatening statement from Iran’s army chief increased the perception of a hostile environment, further depressing the May‑31 price from 30% to 24% and the June‑30 price from 63% to 59%.
Qatar foreign minister meets US Vice President Vance on Mideast talks
June 30 drops to 63%8%
Qatar’s foreign minister met JD Vance on May 12 to discuss US‑Iran mediation, providing a modest boost to expectations for a meeting by June 30.
Iran’s foreign minister says Tehran will not negotiate until U.S. lifts blockade
June 30 dips to 60%3%
The statement underscored a stalemate, coinciding with the lowest points for the May‑31 and June‑30 outcomes as market participants priced in a low probability of a meeting.
Iran’s foreign minister returns to Pakistan, Trump urges phone talks only
May 15 dips to 27%4%
Iran’s top diplomat briefly returned to Islamabad while Trump insisted any further dialogue be conducted by phone, underscoring a lack of progress toward an in‑person US‑Iran meeting.
Pakistani delegation meets Iranian officials in Tehran to arrange US‑Iran talks
May 31 drops to 30%8%
The meeting suggested a possible diplomatic breakthrough, briefly stabilizing the market and raising the May‑31 price from 38% back to 30% before it fell again later in the week.
Iranian official says US 'maximalist' demands stall face-to-face talks
May 31 dips to 24%4%
Iran’s Deputy Foreign Minister stated that the US has not abandoned maximalist demands, preventing new face-to-face talks. This official stance contributed to market skepticism about a diplomatic meeting by May 31.
Trump rejects Iran’s latest proposal to end war
May 15 dips to 1%2%
President Trump rejected Iran’s latest peace proposal, citing dissatisfaction and Iran’s fractured leadership, which diminished market expectations for a diplomatic meeting by May 15 and May 31.
Trump rejects Iran’s latest proposal to end war, citing fractured leadership
June 30 dips to 64%1%
President Trump publicly rejected Iran’s latest peace proposal, expressing dissatisfaction and blaming Iran’s fractured leadership, which dampened hopes for imminent diplomatic meetings and caused market declines.
U.S. forces disable two Iranian tankers in the Strait
May 31 drops to 45%9%
The U.S. military’s direct action against Iranian tankers underscored the hostile environment, causing the May 31 price to drop to 45% as market participants saw reduced diplomatic prospects.
Trump says all options are on the table at UN Security Council
May 31 drops to 30%14%
Trump’s aggressive rhetoric at the UN signaled no imminent diplomatic breakthrough, coinciding with the May‑31 price dropping from 44% to 30% and the June‑30 price falling from 75% to 65%.
Trump rejects Iran’s latest cease‑fire proposal
May 15 plunges to 12%21%
President Trump publicly rejected Iran’s new proposal on May 10, signaling continued deadlock and pushing the market price for a May 15 meeting toward zero.
President Trump rejects Iran’s latest peace proposal
May 15 plunges to 55%16%
Trump’s public dismissal of Iran’s proposal signaled a stalled diplomatic process, causing the May‑15 price to tumble from 71% to 55% over the next two days.
Trump announces pause of envoy mission to Pakistan for Iran talks
May 31 plunges to 30%16%
President Trump canceled the planned envoy mission to Pakistan for follow-up talks with Iran, citing lack of progress and suggesting phone calls instead. This decision dampened market expectations for a diplomatic meeting by May 31 and June 30, contributing to price declines.
US Vice President meets Qatar's top diplomat to discuss Middle East negotiations
JD Vance and Qatar’s Sheikh Mohammed bin Abdulrahman Al Thani discussed ongoing mediation efforts including Pakistani facilitation of US-Iran talks, maintaining diplomatic engagement hopes and stabilizing market prices for the June 30 meeting.
US fires on two Iranian tankers in Strait of Hormuz
May 15 drops to 33%12%
U.S. forces disabled two Iranian tankers on May 8, reigniting military tension and sharply reducing confidence for any diplomatic meeting by May 15.
Trump announces ‘Project Freedom’ to guide ships through Hormuz, then pauses it
June 30 drops to 60%8%
The launch and abrupt halt of a U.S. initiative to reopen the strait signaled policy uncertainty, causing a brief price rebound followed by a decline as the pause suggested no imminent diplomatic breakthrough.
U.S. forces fire on and disable two Iranian tankers in Hormuz
May 31 drops to 44%5%
The direct military engagement heightened the risk of escalation, causing the May‑31 price to fall from 49% to 44% and the June‑30 price to slip from 72% to 65% that day.
US forces fire on and disable two Iranian tankers in the Strait of Hormuz
June 30 drops to 60%13%
The US disabling of Iranian tankers escalated military tension, leading to a sharp price decline for the June‑30 outcome from 73% to 60% within two days.
US fires on and disables two Iranian tankers amid rising Strait of Hormuz tensions
May 31 drops to 44%11%
US forces disabled two Iranian oil tankers after exchanges of fire in the Strait of Hormuz, escalating military tensions and casting doubt on the ceasefire and diplomatic progress, negatively impacting market confidence in a meeting by May 31.
U.S. announces ‘Project Freedom’ to guide ships out of the Strait, then pauses effort
May 31 drops to 38%6%
The mixed signals about reopening the strait further eroded confidence in any near‑term diplomatic meeting, pushing the May‑31 price down further.
Iran fires on vessels attempting to transit the Strait of Hormuz
May 31 surges to 54%26%
Iran’s Revolutionary Guard opened fire on commercial ships, heightening tensions and further lowering confidence in any imminent diplomatic meeting, moving the May 31 price to 54%.
Iran announces reopening of Strait of Hormuz
June 30 rises to 71%2%
Iran declared the Strait of Hormuz reopened on May 6, easing regional tensions and briefly raising market optimism for a US‑Iran meeting by June 30.
US announces 'Project Freedom' to guide ships through Strait of Hormuz, then pauses
June 30 surges to 80%19%
President Trump announced a plan to escort ships through the Strait of Hormuz to ease shipping disruptions, briefly raising hopes for de-escalation. However, the effort was paused to allow time for a diplomatic deal, causing market volatility.
US fires on and disables two Iranian tankers amid Strait of Hormuz tensions
May 31 surges to 54%26%
US forces disabled two Iranian oil tankers attempting to breach the blockade, escalating military tensions and casting doubt on the ceasefire's durability. This military action further reduced market confidence in a diplomatic meeting by May 31 and June 30.
UK gathers 40+ countries to press Iran to reopen Hormuz
The diplomatic summit underscored international pressure on Iran but did not produce a concrete US‑Iran meeting, keeping market sentiment low and contributing to the continued price decline.
U.S. expands naval blockade of Iranian ports
May 31 plunges to 28%27%
Trump announced a full‑scale blockade, reinforcing pressure on Tehran and reducing the likelihood of an in‑person diplomatic meeting, pushing the May 31 price down to 28% from 55%.
U.S. forces fire on and disable two Iranian tankers in Hormuz
May 31 drops to 31%13%
U.S. naval action against Iranian tankers heightened hostilities, reinforcing the perception that diplomatic channels were stalled and pushing the May 31 outcome lower.
US envoy trip to Islamabad cancelled by Trump
May 31 rises to 47%3%
President Trump told envoys not to travel to Islamabad on May 2, halting the planned US delegation and further lowering odds for a meeting by May 31.
U.S. warns shipping firms of sanctions for paying Iran to transit Hormuz
June 30 drops to 61%7%
The Treasury’s warning that payments to Iran could trigger sanctions underscored the hostile environment, further eroding market confidence and pushing the June‑30 price from 68% to 61% on May 2.
U.S. forces fire on and disable two Iranian tankers in the Strait of Hormuz
May 15 drops to 12%6%
The direct military action heightened the risk of escalation, causing a sharp drop in the May‑15 price as traders saw diplomatic engagement receding.
Pakistan‑mediated talks stall as Iran pulls back from Islamabad
June 30 drops to 67%6%
After Araghchi’s brief return to Pakistan, he left again for Moscow, signaling a breakdown in direct talks and causing the June 30 price to fall to 67% as market confidence waned.
Trump rejects Iran’s latest proposal to end war
May 31 jumps to 46%6%
President Trump publicly rejected Iran’s ceasefire proposal, citing dissatisfaction and fractured Iranian leadership, signaling stalled negotiations and reducing market confidence in a diplomatic meeting by May 31.
US Navy seizes Iranian‑flagged cargo ship near Strait of Hormuz
May 31 drops to 38%7%
The seizure was viewed as a provocative act that further reduced expectations of a diplomatic meeting, pushing the May‑31 price from 45% to 38% the following day.
Iran fully closes Strait of Hormuz and fires on ships amid US blockade
May 15 drops to 23%14%
Iran reversed its reopening of the Strait of Hormuz and fired on ships attempting to pass, escalating tensions and undermining prospects for diplomatic meetings, leading to a sharp drop in market prices for May 15 and May 31 outcomes.
US‑Iran cease‑fire talks end without agreement in Pakistan
May 31 drops to 44%7%
The 21‑hour face‑to‑face talks in Pakistan concluded without a deal on April 30, causing a sharp decline in confidence for a meeting by May 31.
Iran fully closes Strait of Hormuz and fires on ships amid US blockade
June 30 drops to 65%7%
Iran’s Revolutionary Guard closed the Strait of Hormuz and attacked ships, escalating tensions and signaling ongoing conflict, which undermined prospects for diplomatic meetings and contributed to market price declines.
UK hosts international talks to press Iran to reopen Strait of Hormuz
June 30 drops to 66%7%
Diplomats from over 40 countries met virtually to discuss diplomatic and political pressure on Iran to reopen the Strait of Hormuz, highlighting global concern but no direct US-Iran talks. This contributed to market uncertainty and price fluctuations.
Iranian official says US ‘maximalist’ demands stall face-to-face talks
May 31 dips to 53%2%
Iranian Deputy Foreign Minister Saeed Khatibzadeh stated Iran is not ready for new face-to-face talks due to US maximalist demands, indicating significant negotiation hurdles and lowering market expectations for a diplomatic meeting by May 31.
U.S. President Trump rejects Iran’s latest peace proposal
June 30 jumps to 73%7%
Trump publicly said he was not satisfied with Iran’s latest offer, dampening expectations of a face‑to‑face meeting and pushing the June 30 price down to 73% after a brief rally.
US announces naval blockade of Iranian ports
May 31 drops to 51%14%
President Trump announced a full naval blockade of Iranian ports on April 28, intensifying pressure on Tehran and dampening expectations for an imminent in‑person meeting.
Iran’s foreign minister makes a surprise visit to Islamabad for cease‑fire talks
Iranian FM Abbas Araghchi arrived in Pakistan to discuss a possible cease‑fire and diplomatic opening, prompting traders to view a US‑Iran meeting as more likely, lifting the June 30 price to 66%.
Pakistan delegation meets Iranian officials in Tehran
June 30 jumps to 72%6%
A high‑level Pakistani delegation met Iran’s foreign minister to discuss a second round of US‑Iran talks, but no concrete outcome was announced, contributing to a modest price rise that later reversed.
Trump rejects Iran’s latest peace proposal
Trump’s public dismissal of Iran’s proposal removed any immediate prospect of a diplomatic meeting, triggering a sharp price decline for both June‑30 and May‑31 contracts.
UK hosts 40+ countries to press Iran to reopen Strait of Hormuz
Britain convened a virtual meeting of over 40 countries to discuss diplomatic means to pressure Iran to reopen the Strait of Hormuz, highlighting international concern but with the US absent. This event underscored the diplomatic stalemate and lack of direct US-Iran talks, negatively impacting market optimism for a meeting by June 30.
Iranian foreign minister briefly returns to Pakistan, Trump urges phone talks
May 31 drops to 44%5%
Iran’s foreign minister’s brief visit to Islamabad ended with Trump refusing to send envoys, reinforcing the perception that in‑person talks were stalled, contributing to the May‑31 price dip from 49% to 44% that day.
Iran’s top diplomat returns to Pakistan after talks canceled
May 31 dips to 27%4%
Iran’s foreign minister returned to Pakistan after the cancellation of talks, while Trump suggested the sides could talk by phone instead, reflecting ongoing diplomatic uncertainty and contributing to market declines for May 31 and May 15 outcomes.
Iranian foreign minister returns to Pakistan; Trump prefers phone talks
May 15 drops to 71%8%
The brief return of Iran’s foreign minister to Islamabad raised hopes for a second round of talks, but Trump’s insistence on phone negotiations dampened optimism, causing the May‑15 price to drop from 79% to 71% the next day.
Iran’s foreign minister returns briefly to Pakistan amid stalled talks
May 31 dips to 24%4%
Iran’s foreign minister returned briefly to Islamabad amid ongoing indirect talks, but President Trump suggested the sides could talk by phone instead of in-person meetings, further diminishing chances of a diplomatic meeting by May 31.
Trump rejects Iran’s latest peace proposal, calling it unsatisfactory
May 31 drops to 49%6%
The president’s dismissal of Iran’s offer reduced optimism that a meeting would be scheduled, contributing to the continued decline of the May‑31 price.
Iran’s top diplomat leaves Pakistan as US envoys called off by Trump
May 15 plunges to 0%79%
Iranian Foreign Minister Abbas Araghchi left Pakistan without meeting US envoys after President Trump called off sending envoys to Islamabad, signaling a breakdown in planned direct talks and causing market prices for May 15 and May 31 meetings to drop sharply.
Pakistani army chief meets Iran’s foreign minister in Tehran
June 30 dips to 69%2%
A Pakistani delegation met Iran’s foreign minister in Tehran on April 25, seeking to set up a second US‑Iran negotiation round, which temporarily boosted market confidence for a meeting by late June.
Trump cancels US envoys' trip to Pakistan for Iran talks
May 31 drops to 31%9%
Iran’s top diplomat left Pakistan and President Trump said he told envoys not to travel to Islamabad, signaling a breakdown in planned talks and causing a sharp market decline in optimism for meetings by May 31 and May 15.
Trump cancels US envoys' trip to Pakistan for Iran talks as Iran's top diplomat leaves Islamabad
May 15 drops to 4%10%
Iran’s top diplomat left Pakistan abruptly and President Trump announced he told US envoys not to travel to Islamabad for follow-up talks, signaling a breakdown in planned direct negotiations. This caused a sharp drop in market confidence for May 15 and May 31 meeting dates.
Trump says US-Iran talks could resume soon but no schedule set
June 30 jumps to 71%8%
President Trump indicated that a second round of talks could happen within two days, but a US official later said no talks were scheduled, reflecting uncertainty and causing mixed market reactions with some volatility.
Trump rejects Iran’s latest peace proposal
May 31 drops to 45%10%
President Trump publicly dismissed Iran’s new offer, indicating no progress toward a negotiated settlement and lowering market confidence that a US‑Iran meeting would be arranged soon.
U.S. rejects Iran’s latest cease‑fire proposal
May 15 drops to 71%8%
Trump publicly said he was not satisfied with Iran’s proposal delivered via Pakistani mediators, indicating no imminent meeting and coinciding with the May‑15 price falling from 79% to 71%.
U.S. Navy seizes Iranian‑flagged cargo ship near Hormuz
May 15 drops to 70%9%
The first U.S. seizure of an Iranian vessel under the blockade raised tensions and suggested the cease‑fire was unraveling, further dampening hopes for a diplomatic meeting.
Pakistan delegation meets Iranian officials to ease tensions and arrange talks
June 30 jumps to 63%6%
Pakistan's army chief met Iran's foreign minister in Tehran to facilitate a second round of US-Iran negotiations before the ceasefire expires, raising hopes for diplomacy and causing a temporary market rebound for June 30 and May 31 outcomes.
US‑Iran back‑channel talks resume in Islamabad
June 30 jumps to 71%5%
Diplomats worked through back channels on April 21 to arrange a new round of US‑Iran talks in Islamabad, raising hopes for a diplomatic meeting before the cease‑fire expires.
Pakistan’s army chief meets Iran’s foreign minister in Tehran to discuss US‑Iran talks
May 15 drops to 70%9%
The meeting signaled a possible diplomatic channel but produced no concrete agreement, coinciding with a price dip for the May‑15 outcome as traders saw no imminent meeting.
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