# Current state
No "final deal" between the U.S. and Iran has been concluded. The June 2026 MOU's 60-day negotiation deadline (Clause 14 requires eventual UNSC endorsement of any final deal) expired August 17, 2026 with no agreement, and talks have degraded to informal, intermediary-based "semi-negotiations." No UNSC draft resolution has been tabled; P5 members (esp. Russia/China) have only offered conditional engagement contingent on a completed final text. Polymarket prices this market at 20.5%, down from a 56% high but up 7pts in the last week; no Kalshi-direct price was returned by tooling for this event (gap).
# Timeline of key events
- 2025-08-28 (confirmed): E3 (UK/France/Germany) invoke JCPOA snapback mechanism against Iran.
- 2025-09-19 (confirmed): UNSC draft resolution to preserve sanctions relief fails to pass.
- 2025-09-27 (confirmed): Snapback completes; full UN sanctions (arms embargo, financial freezes) reimposed on Iran.
- 2026-02-28 (confirmed): U.S./Israel strike Iran; Khamenei reportedly killed; war begins among US-Israel-Iran.
- 2026-03-12 (confirmed): UNSC debates Iran nuclear file; Russia/China openly challenge legality of snapback sanctions.
- ~2026-03 (confirmed): UNSC Res 2817 adopted, condemning Iranian strikes on Gulf states — only resolution passed to date; no deal-endorsing resolution.
- 2026-06-14/17 (confirmed): U.S.-Iran "Islamabad MOU" signed (Trump/Pezeshkian, mediated by Pakistan/Qatar); Clause 14 commits to binding UNSC resolution endorsing eventual "final deal"; 60-day negotiation window, extendable by mutual consent.
- 2026-06-late (reported): Russia states it will engage on a draft UNSC resolution "once" US-Iran formalize a final agreement — conditional, not drafted.
- 2026-07 (reported): UNSC emergency session urges swift deal implementation amid renewed clashes; a Russia/China-blocked resolution on Hormuz navigation shown as a fracture point.
- 2026-07-11 (confirmed): IAEA tells UNSC it has "lost continuity of knowledge" on Iran's nuclear program; Iran not implementing Additional Protocol.
- 2026-08-04 to 08-09 (reported): Talks continue via Oman on Hormuz; Rubio cites "progress...but not finality."
- 2026-08-17 (confirmed): 60-day MOU deadline expires without a final deal; deadlock over Strait of Hormuz transit regime and frozen Iranian funds; Trump threatens Oman.
- 2026-08-16 (reported): Iran FM states no decision made to restart negotiations; mediators (Qatar/Pakistan) trying to keep channels open.
# Event
Will the UN Security Council adopt a resolution endorsing/implementing a "final" U.S.-Iran deal (per the June 2026 MOU) by Dec 31, 2026?
# Outcomes to forecast
Yes / No
# Kalshi market anchor
No kalshi_direct price was returned by tooling for this ticker (data gap). Closest Kalshi-side reference: unrelated markets (nuclear fusion 33%, nuclear-powered data center 53%) — not informative. Treat Polymarket (20.5% current, 7d +7%, 30d -13%, range 13.5–56%, $193k volume) as the best available cross-market proxy anchor.
# Sub-question answers
1. **Polymarket price/history** — Current 20.5%; up 7pts over 7 days but down 13pts over 30 days; traded as high as 56% (likely near MOU signing optimism in June) and as low as 13.5% (post-deadline pessimism, mid-Aug). [polymarket_direct]
2. **Final deal status/timeline** — No final deal concluded; MOU specified a 60-day window (extendable by mutual consent) that expired Aug 17, 2026 without resolution of core issues (Hormuz transit regime, frozen assets). [claude_news/AP/CNN/Al Jazeera]
3. **Draft UNSC resolution** — None circulated, tabled, or scheduled; P5 members have not been formally asked to act since no final deal text exists. [claude_news]
4. **P5/US positions** — Russia has signaled conditional willingness to negotiate a resolution once a final deal exists (Tribune India); China has separately challenged the legality of the reimposed snapback sanctions, signaling friction (UN press coverage, March 2026); UK/France (E3) triggered the 2025 snapback and would likely back a resolution if a deal materializes; a Russia/China bloc separately blocked a Hormuz-navigation resolution in July 2026, showing veto risk is real when interests diverge. US position is clearly pro-resolution once a deal exists. [claude_news, press.un.org]
5. **Historical base rate** — JCPOA: framework April 2015 → final text July 14, 2015 → Res 2231 adopted July 20, 2015 (~6 days text-to-resolution). Snapback 2025 shows the reverse — a UNSC draft resolution (to preserve relief) failed within weeks, proving Council action can also fail. [Wikipedia, CRS]
6. **Obstacles** — 2025 snapback reimposition of full UN sanctions complicates any relief mechanism; IAEA "lost continuity of knowledge," no Additional Protocol; US INARA mandates Congressional review as an added procedural hurdle; deep P5 splits (Russia/China vs. US/E3) over sanctions legality; ongoing military exchanges (Feb 2026 strikes); unresolved Hormuz/frozen-funds deadlock; MOU already expired without extension. [CRS, claude_news, press.un.org]
7. **Cross-market consistency** — No other live Kalshi or Polymarket markets specifically on Iran deal/sanctions were found (Kalshi related search returned unrelated fusion/data-center markets; Polymarket related search returned only a Taiwan-invasion market). No corroborating cross-market signal exists. [kalshi_related, polymarket_related]
# Key facts (high-confidence, factual)
1. [Wikipedia/NPR/NBC] June 14–17, 2026 Islamabad MOU signed; Clause 14 requires binding UNSC endorsement of eventual final deal.
2. [claude_news/CNN] 60-day MOU deadline expired Aug 17, 2026 without a final deal.
3. [CRS/Wikipedia] Sept 27, 2025 snapback reimposed full UN sanctions on Iran.
4. [press.un.org] March 12, 2026 UNSC session: Russia/China dispute legality of snapback.
5. [Wikipedia] Res 2231 (JCPOA) took only ~6 days from final text to UNSC adoption in 2015 — fast-follow precedent if a deal is reached.
6. [globalsecurity.org] IAEA reports loss of "continuity of knowledge" on Iran's nuclear program (July 2026).
# Cross-market signals
- Kalshi related: no relevant markets found; only unrelated fusion/data-center contracts.
- Polymarket: this market itself at 20.5% (proxy anchor); related-market scan found no other Iran-specific markets.
- Sportsbook implied: none available.
# Analyst opinions and speculation
- [code_execution model] Two-factor decomposition (P(final deal)×P(UNSC|deal)) yields a central estimate ~25–35%, with outcome far more sensitive to whether a final deal is reached at all (UNSC follow-through is treated as near-mechanical once text exists, per 2015 precedent).
- Model flags that if actual market price is well below ~25-35%, it reflects skepticism about a final deal being reached this year, not about UNSC mechanics.
# Directional lean per outcome
- **Yes**: MOU explicitly commits both parties to binding UNSC endorsement; JCPOA precedent shows UNSC can move within days once text is agreed; mediators (Qatar/Pakistan) still working to revive talks.
- **No** (favored): MOU deadline already lapsed without a deal; core disputes (Hormuz, frozen funds) unresolved; talks reduced to informal messaging; no draft resolution exists; P5 (Russia/China) split and have already blocked at least one related resolution; IAEA verification gap unresolved; US INARA review adds delay; only ~4 months remain to close a substantive deal and complete UNSC process.
# Gaps / unknowns
- No Kalshi-direct price was retrieved for this specific ticker — a significant blind spot given Kalshi should be the primary anchor.
- No confirmation on Majlis (Iranian parliament) ratification requirements or timeline.
- Unclear whether negotiations have resumed since Aug 16, 2026 statement by Iran's FM.
- No visibility into any post-August diplomatic developments (research cutoff ~late Aug 2026).
# Calibration anchors
- Polymarket current price: 20.5% (proxy anchor; Kalshi price unavailable).
- Model-based base case: ~25–35% (P(final deal)×P(UNSC follow-through)).
- 2015 JCPOA precedent: ~6 days from final text to UNSC resolution — supports fast UNSC action IF a deal is reached, but a deal itself is the binding constraint and is currently stalled/expired.