# U.S. and Iran ceasefire held as deal negotiations stalled

*World. 78% certain. Wednesday, 4 November 2026*

> Speculative fiction assembled from prediction-market prices. This has not happened.

**The ceasefire continued through October and no nuclear deal or oil sanction relief was secured.**

The limited cease-fire between the United States and Iran remained in effect through the end of October. No final nuclear agreement had been reached by the October deadline. The United States also did not re-issue oil sanction relief for Iran. A senior diplomatic meeting was not scheduled before the end of the month.

The truce was confirmed to hold through Oct. 31 on Saturday, 31 October. Both sides indicated the agreement would keep hostilities at bay until that date. The confirmation came after exchanges that verified the cease-fire terms.

The outcome meant that the comprehensive inspection framework remained unresolved. Negotiators had not signed any binding agreement on the nuclear program.

The same Sunday update confirmed that the United States had not reissued oil sanction relief for Iran by the end of October. Consequently, Iranian oil exports continued to face the existing restrictions. No new provisions easing the sanctions were announced.

On Saturday, 31 October, it was recorded that no senior diplomatic meeting between the two governments was scheduled before the month's end. The absence of a high-level dialogue left diplomatic channels limited to lower-level contacts. Further talks were not slated to occur in the immediate timeframe.

## Analysis

The persistence of the cease-fire provides a modest degree of stability in a volatile region, preventing a rapid escalation of hostilities while diplomatic momentum stalls. However, without a broader agreement, the truce remains fragile and dependent on the continued willingness of both parties to refrain from provocative actions.

The failure to secure a final nuclear deal and the lack of oil sanction relief keep the core issues of the bilateral relationship unresolved. For the United States, the absence of an agreement limits leverage over Iran's nuclear program, while Iran continues to face economic pressure from the sanctions, affecting its oil revenue and internal political calculations.

Without a high-profile engagement, any future progress will likely require renewed confidence-building measures, potentially involving third-party mediation or a shift in regional dynamics before a comprehensive deal can be revisited.

### Background consulted for the analysis

- [2025–2026 Iran–United States negotiations - Wikipedia](https://en.wikipedia.org/wiki/2025%E2%80%932026_Iran%E2%80%93United_States_negotiations)
- [US, Iran talks conclude in Doha, focused on Strait of Hormuz](https://www.reuters.com/world/asia-pacific/us-iran-enter-technical-talks-secure-peace-deal-restart-shipping-2026-07-01/)
- [Islamabad Memorandum - Wikipedia](https://en.wikipedia.org/wiki/Islamabad_Memorandum)
- [US sets new demands for Iran deal: What are they? | US-Israel war on Iran News | Al Jazeera](https://www.aljazeera.com/news/2026/10/7/us-sets-new-demands-for-iran-deal-what-are-they)

## What this was built from

- **US x Iran ceasefire continues through October 31?**: Yes, 90%; settles Saturday, 31 October 2026 (polymarket). [Market](https://polymarket.com/event/us-iran-ceasefire-continues-throughptptpt)
- **US-Iran ceasefire continues through the midterms?**: Yes, 78%; settles Wednesday, 4 November 2026 (polymarket). [Market](https://polymarket.com/event/us-iran-ceasefire-continues-through-the-midterms)
- **Next US-Iran senior diplomatic meeting by October 31, 2026? (copy)**: No, 88%; settles Saturday, 31 October 2026 (polymarket). [Market](https://polymarket.com/event/next-us-iran-senior-diplomatic-meeting-byptptpt)
- **US reissues Iran oil sanction relief by October 31?**: No, 92%; settles Sunday, 1 November 2026 (polymarket). [Market](https://polymarket.com/event/us-reissues-iran-oil-sales-sanction-relief-byptptpt-20260708142359046)
- **US-Iran Final Nuclear Deal by October 31, 2026?**: No, 99%; settles Sunday, 1 November 2026 (polymarket). [Market](https://polymarket.com/event/us-iran-final-nuclear-deal-by-20260621201254412)