Tools chosen: polymarket_direct polymarket_related kalshi_related claude_news gdelt_news wikipedia code_execution

Sub-questions (Fermi decomposition)

Planner reasoning

This is a multiplicative conditional: Ali Khamenei (age 86) must vacate power before Dec 31, 2026, AND Mojtaba Khamenei must be the successor exercising de facto authority. Base rates on actuarial mortality plus succession-probability reporting are the core inputs, anchored on the Polymarket price and any sibling markets in the same 'Iran leader end of 2026' event group.

# Current state Mojtaba Khamenei has held the title and de facto powers of Supreme Leader (Iran's head of state) since March 8, 2026, when the Assembly of Experts named him successor following Ali Khamenei's assassination in a US-Israel strike on Feb 28, 2026 [Al Jazeera, Wikipedia, PBS]. The resolution question is whether he *remains* in that role through Dec 31, 2026 — distinct from his formal title, since recent reporting raises doubts about his actual operational control (prolonged absence from public view, reports he is "not communicating with anyone") [AA/aa.com.tr, moneycontrol.com, July 2026]. # Timeline of key events - 2026-02-28: Ali Khamenei killed in joint US-Israel strike during the "2026 Iran war" (confirmed — Wikipedia, multiple outlets). - 2026-03-03: Israeli Air Force strikes Assembly of Experts building in Qom (confirmed — Wikipedia). - 2026-03-08: Assembly of Experts names Mojtaba Khamenei third Supreme Leader; IRGC, armed forces, President Pezeshkian pledge backing (confirmed — Al Jazeera, PBS, Wikipedia). Trump had publicly opposed Mojtaba's candidacy pre-vote (reported, PBS); Israel's IDF threatened "every successor" (reported). - 2026-05-09: Intelligence sources say Mojtaba is directing negotiations with the US (reported — NY Post). - 2026-05-26 to 2026-06-13: Iran prepares/holds "grand funeral" for Ali Khamenei; new leader calls Israel a "cancerous tumor" (reported — Israel National News, Al Jazeera). - 2026-06-03/04: Reports describe Mojtaba as "injured supreme leader"; Trump seeks meeting with him amid ceasefire crisis (reported — News24, IBTimes). - 2026-07-12: After weeks out of public view, Mojtaba "may finally appear" at father's memorial — signals uncertainty about his condition/whereabouts (reported — Moneycontrol). - 2026-07-22: President Pezeshkian claims interaction with Mojtaba is "increasing" (reported — RFE/RL via globalsecurity.org). - 2026-07-26: Mojtaba's father-in-law says the Supreme Leader is "not communicating with anyone" (reported — AA). - 2026-07-27: Statements attributed to Khamenei praise Hezbollah, call for jihad against Israel (reported — JPost). # Event Will Mojtaba Khamenei be de facto head of state of Iran on Dec 31, 2026 12:00 PM ET? # Outcomes to forecast Yes / No (plus implicit "No Head of State" resolution per rules) # Kalshi market anchor No Kalshi-direct price for this specific ticker was returned in research; kalshi_related search found no matching Iran/Khamenei markets on Kalshi. **Primary available anchor is Polymarket**: current price 84.3% YES, up +6.05% over 7 days, +1.90% over 30 days, range 63.55%–85.10% over 91 days, $5.6M total volume — indicating a strong and strengthening consensus toward Yes. # Sub-question answers 1. **Polymarket price/trend** — 84.3% currently; rose from ~63.6% low to 85.1% high over 90 days, trending up sharply in last week [polymarket_direct]. 2. **Sibling market prices** — Not returned; polymarket_related found zero matching sibling markets (Ali Khamenei, "No head of state," other candidates) in the scan, so implied P(Ali Khamenei in power) can't be directly assessed. Moot regardless since Ali Khamenei is confirmed dead. 3. **Actuarial death probability** — Moot/stale: the code_execution tool computed a hypothetical mortality-based estimate (~10-25% chance of death/incapacitation over 13.5 months) assuming Ali Khamenei still alive; this is superseded by confirmed fact that he was killed Feb 28, 2026. 4. **Health/succession reporting** — Ali Khamenei killed 2026-02-28; Mojtaba formally named successor 2026-03-08 with IRGC/institutional backing [Al Jazeera, PBS, Wikipedia]. No credible reports of Alireza Arafi, Hassan Khomeini, or IRGC rival figures displacing him since. However, reports of Mojtaba's own injury, prolonged absence, and "not communicating with anyone" (per father-in-law, 2026-07-26) raise real questions about his current operational control [AA]. 5. **Expert consensus on Mojtaba specifically** — Moot; succession to Mojtaba already occurred and was formalized by the Assembly of Experts; no meaningful rival claimant currently reported. 6. **Regime collapse / IRGC takeover risk** — No reporting found indicating active internal challenge to Mojtaba's rule as of mid-2026, though his physical incapacitation/absence and unclear command chain create latent risk that "No Head of State" or an IRGC-led arrangement could be the true de facto power by Dec 2026 [claude_news, AA, moneycontrol]. 7. **Comparable Kalshi venue** — None found; kalshi_related returned unrelated leader-succession markets (G7, Africa, SCOTUS), no Iran-specific comparator. # Key facts (high-confidence, factual) 1. [Wikipedia/Al Jazeera] Ali Khamenei killed 2026-02-28 in US-Israel strike; Mojtaba named 3rd Supreme Leader by Assembly of Experts 2026-03-08. 2. [Wikipedia] Mojtaba was injured in the strike that killed his father; has had a "prolonged absence from public view." 3. [AA, 2026-07-26] Father-in-law states Mojtaba is "not communicating with anyone." 4. [Wikipedia] US offering up to $10M for information on Mojtaba, implying ongoing targeting/uncertainty about his location/safety. 5. [PBS/JPost] Establishment (IRGC, President Pezeshkian) publicly backed Mojtaba's appointment. # Cross-market signals - Kalshi: no comparable direct market found in research. - Polymarket: 84.3% YES, rising trend, high volume ($5.6M) — strong market conviction. - Sportsbook: n/a. # Analyst opinions and speculation - claude_news synthesis: "Barring a coup, further assassination, IRGC power struggle, or regime collapse... he is very likely to remain head of state through Dec 31, 2026 — no reporting found indicates active internal challenge." - code_execution tool's ~5-8% estimate is based on an outdated premise (Ali Khamenei still alive) and should be disregarded as stale/non-applicable to current state. # Directional lean per outcome - **Yes**: Formal, institutionally-backed succession already complete; no rival claimant reported; Polymarket pricing rising toward 85%. Opposing: reports of his injury, incommunicado status, and unclear real command authority raise risk he is a figurehead or that actual control lies elsewhere (IRGC/regency-like arrangement), which the market may be underweighting. - **No**: Would require his death/incapacitation, ouster, or a de facto shift of power to another figure/institution before Dec 2026 — no direct evidence of this yet, but health/communication concerns are a live, unresolved risk factor. # Gaps / unknowns - No verified, recent (post-July 27, 2026) confirmation of Mojtaba's health/whereabouts/functional control. - No Kalshi-direct price or sibling Polymarket market data to cross-check Polymarket's 84.3%. - No clarity on who exercises day-to-day executive control if Mojtaba is genuinely "not communicating" — could indicate a regency/IRGC council already substituting for him. # Calibration anchors - Polymarket current price: 84.3% (rising) — best available consensus anchor. - Precedent: Iranian Assembly of Experts successions historically stick once formalized (1989 Khamenei succession held for 36 years); no historical precedent yet for wartime/injured successor scenario.

1. Both forecasts note the "not communicating with anyone" report but neither seriously grapples with the "implicit No Head of State" resolution rule mentioned in the brief's Outcomes section—if Mojtaba is genuinely incommunicado, the market/question may resolve No even absent a rival claimant or coup, since "de facto head of state" requires demonstrable active control, not just formal title. This is a distinct pathway to No that's separate from death/ouster/IRGC takeover, and both rationales conflate it with "regency/IRGC arrangement" scenarios rather than treating "incapacitated figurehead" as its own live category. 2. Forecast 1's move to 87% (above the 84.3% Polymarket anchor) is weakly justified—citing "continued statements being issued in his name" as reassurance actually cuts both ways, since ghost-written statements from an incommunicado leader could just as easily signal others are already exercising de facto power, which should push toward No, not Yes. This looks like unwarranted anchoring-plus-drift without a clear evidentiary basis for exceeding the market. 3. Neither forecast addresses the reliability/staleness gap explicitly flagged in the brief: "No verified, recent (post-July 27, 2026) confirmation of Mojtaba's health/whereabouts/functional control" — with ~5 months of unknown developments between the evidence cutoff and resolution, both forecasts implicitly assume the July 2026 snapshot is a stable steady-state, which may understate uncertainty over a still-lengthy remaining window. 4. Forecast 2's discount to 78% (6.3 points below Polymarket) isn't well-calibrated against a specific alternative estimate—it cites the same risk factors as Forecast 1 (which went up 2.7 points) without explaining why the same evidence should produce a swing in the opposite direction; this divergence between the two forecasters on how to weight identical facts suggests at least one is not rigorously deriving its number from stated reasoning. 5. Both forecasts under-weight the market quality caveat: Polymarket's 84.3% is based on only $5.6M volume in a thin, geopolitically volatile, low-liquidity prediction market for an opaque authoritarian succession—historical base rates for prediction-market accuracy on covert foreign-regime internal dynamics are weaker than for the "successions historically stick" precedent both forecasts lean on (which is drawn from peacetime successions, not a wartime assassination-and-injured-successor scenario the brief explicitly says has "no historical precedent"). 6. Neither forecast discusses the $10M US bounty on Mojtaba as an ongoing elevated assassination/incapacitation risk factor distinct from the already-priced "injury" narrative — active targeting over the next 5 months is a forward-looking risk that arguably deserves more explicit weight than backward-looking injury reports alone.

83% (medium confidence)

Yes: 83% No: 17%

The succession is already formalized: the Assembly of Experts named Mojtaba Supreme Leader on 2026-03-08 with IRGC, armed forces, and presidential backing, and no rival claimant or active internal challenge has been reported. The best available anchor (Polymarket, $5.6M volume) sits at 84.3% and is trending up, and statements continue to be issued in his name. However, the devil's advocate is right that an 'incapacitated figurehead' pathway is a distinct route to No beyond death/coup, that the evidence is stale after late July 2026, and that a $10M US bounty plus active Israeli targeting keeps forward-looking assassination/incapacitation risk elevated in an unprecedented wartime-succession scenario — factors that argue against exceeding the market as Forecast 1 did. Conversely, Forecast 2's 6-point discount overweights a single father-in-law quote in a regime that has strong institutional incentives to maintain continuity of the office. I therefore settle essentially at the market anchor, a shade below it, at 83% Yes.

Total pipeline time: 288.1s