Tools chosen: polymarket_direct polymarket_related kalshi_related claude_news gdelt_news wikipedia code_execution

Sub-questions (Fermi decomposition)

Planner reasoning

This is a Polymarket question on whether Trump and Putin will fail to meet in person before Dec 31, 2026 — a long horizon (~13+ months from typical creation). The key drivers are the state of Ukraine peace negotiations, any scheduled summit (e.g., the aborted Budapest summit), and base rates of US-Russia leader summits. Primary anchor is the Polymarket price; I'll triangulate with Kalshi, news on summit planning, and a base-rate calculation.

# Current state Only one Trump-Putin meeting has occurred since Trump's 2024 re-election: the Aug 15, 2025 Alaska (Anchorage) summit, which ended without a deal. A follow-up Budapest summit was announced in Oct 2025 but shelved by Trump; as of the latest confirmed reporting (Aug 2026), no new in-person meeting has occurred, with diplomacy continuing via envoys (Witkoff, Kushner, Dmitriev, Ushakov) and phone calls, and the Kremlin insisting any Trump-Putin(-Zelenskyy) summit should occur only to *finalize* a deal, not negotiate one. # Timeline of key events - 2025-08-15 (confirmed): Trump-Putin summit in Anchorage, Alaska; first meeting as sitting presidents since 2019; no agreement announced. - 2025-10-early (confirmed): Budapest summit announced. - 2025-10-mid/late (confirmed): Trump shelves Budapest plans, saying he doesn't want a "wasted" meeting; White House says no near-term Trump-Putin plans. - 2025-10 (reported): Kremlin (Ryabkov, Peskov) says Budapest prep "ongoing" but no urgency, needs "serious preparation." - 2025-12-02 (confirmed): Witkoff, Kushner, Dmitriev, Ushakov meet Putin in Moscow; Peskov says a Trump-Putin call is coming "very near future." - 2026-01 (reported): Trump says "anytime we meet is good," expects Putin concessions. - 2026-02 (reported): Peskov says trilateral summit should happen only to finalize a deal; territorial issue called "most difficult." - 2026-06 (reported): Peskov reiterates Moscow-only Putin-Zelenskyy offer, no Trump summit progress; declines G7-adjacent invite for Putin ("Of course not"); US distracted by Iran deal. - 2026-07-28 (confirmed): Separate Trump meetings with Zelenskyy and Netanyahu at White House; no Putin involvement. - 2026-08-15/21 (reported): One-year Alaska-anniversary retrospectives; no new Trump-Putin meeting confirmed. # Event Will there be no in-person Trump-Putin meeting between market creation and Dec 31, 2026 (Yes = no meeting; No = they meet)? # Outcomes to forecast Yes (no meeting by Dec 31, 2026) / No (they meet) # Kalshi market anchor Primary market data (matching this exact ticker) currently shows **YES ("not meet") at 55.5%**, down 6pts over 7 days and down 17pts over 30 days — a clear downward trend toward "they will meet." Range over 88 days: 47%–76.5%. Volume modest ($121K total). No separate native Kalshi orderbook for this identical contract was returned in research. # Sub-question answers 1. **Polymarket price/trend** — 55.5% YES (no meet), down from a high of 76.5%; -6% (7d), -17% (30d), signaling growing market confidence a meeting will occur. [polymarket_direct] 2. **Scheduled/negotiated summit** — Budapest summit was announced Oct 2025, then shelved by Trump ("wasted meeting" concern); not formally canceled, remains stalled. No Abu Dhabi/Saudi/Gulf summit confirmed. Kalshi's "Trump-Putin next meet — Hungary" contract prices only 9%. [claude_news, kalshi_related] 3. **Peace talks state** — Active via envoys (Witkoff, Kushner, Dmitriev, Ushakov); Dec 2025 Moscow meeting; Kremlin explicitly conditions any Trump-Putin(-Zelenskyy) summit on finalizing (not negotiating) a deal; territorial dispute remains unresolved through June 2026. [claude_news] 4. **2026 multilateral venues** — No evidence found of confirmed joint attendance at G20/APEC/UN; Peskov explicitly declined a G7-adjacent invite for Putin (June 2026). Gap in research otherwise. 5. **Kalshi vs Polymarket divergence** — No identical Kalshi contract price found; related Kalshi markets (Hungary location 9%, Zelenskyy-Putin meeting 0.6%) suggest broader skepticism toward near-term high-level Russia meetings, roughly consistent with elevated "no meet" pricing. [kalshi_related] 6. **Base rate** — 85.2% of historical 13-month US-Russia windows (1985-2025) had a meeting; multi-year gaps occurred only 3 times in 40 years, all during acute ruptures (Ukraine war, Snowden, COVID) — current context fits that rupture pattern. Scenario model centers P(no meet)≈47.5% (range 21–78%). Announced summits don't always happen (Budapest shelved after Alaska occurred). [code_execution, wikipedia] # Key facts (high-confidence, factual) 1. [wikipedia] Alaska summit occurred Aug 15, 2025 — only Trump-Putin meeting since 2024 election. 2. [claude_news] Budapest summit announced Oct 2025, then shelved by Trump. 3. [claude_news] Peskov (Feb & June 2026): trilateral meeting only to finalize, not negotiate, a deal. 4. [claude_news] No new Trump-Putin summit confirmed through June-Aug 2026 reporting. 5. [code_execution] Historical 13-month no-meeting gaps are rare (14.8% of windows) but have occurred during major ruptures like the current war. # Cross-market signals - Kalshi related: "Trump-Putin next meet — Hungary" 9% (down 3pts/7d); "Zelenskyy-Putin speak before July 2026" 0.6%; both suggest markets see imminent high-profile meetings as unlikely. - Polymarket: This market's own "not meet" YES at 55.5%, trending down sharply (toward "meet" outcome becoming more likely) over the last 30 days. - Sportsbook implied: none found. # Analyst opinions and speculation - Kremlin (Peskov, Ryabkov) frames further summits as contingent on deal readiness, not urgency — implicitly bearish on near-term meeting. - Trump's rhetoric ("anytime we meet is good") is more meeting-permissive but not evidence of scheduling. - code_execution model: central estimate near coin-flip (~47.5% no-meet), wide uncertainty band (21-78%), cautioning against extreme pricing either direction. # Directional lean per outcome - **No meeting (Yes)**: Supported by stalled Budapest plans, Kremlin's "finalize-only" summit doctrine, unresolved territorial dispute, low related-market prices for near-term encounters. - **Meeting (No)**: Supported by active envoy-level diplomacy (Witkoff/Kushner/Dmitriev), one meeting already achieved (Alaska), Trump's stated openness, declining Polymarket "no-meet" price trend, and ~17-month window still open through Dec 2026. # Gaps / unknowns - No confirmed native Kalshi orderbook price for this exact contract. - No data on G20/APEC/UN 2026 joint attendance plans. - No post-Aug 2026 reporting available; unclear if any late-2026 breakthrough occurred. # Calibration anchors - Polymarket-equivalent YES ("no meet") price: 55.5%, trending down. - Historical base rate: ~85% chance of meeting within any 13-month window absent rupture; but war-driven rupture years historically produce multi-year gaps (3 precedents in 40 years). - Scenario/decomposition central estimate: ~47.5% "no meet" (range 21–78%).

1. Both forecasts nudge slightly above the 55.5% anchor toward "Yes," but neither adequately weighs the sharp -17pt (30d) downward momentum in the market, which is a strong directional signal that should arguably pull the estimate *below* 55.5%, not above it — they acknowledge the trend but override it without strong justification. 2. Neither forecaster addresses the "gap" flagged in the brief: no post-Aug 2026 reporting exists, yet ~4 months remain (Sep–Dec 2026) unaccounted for; both treat "no summit confirmed through Aug 2026" as near-final evidence when it's actually only ~75% of the window elapsed, understating residual uncertainty in the unseen period. 3. The base-rate section is underused: the brief notes historical multi-year no-meeting gaps only occur during "acute ruptures" and this war qualifies, yet neither forecast explicitly reconciles this with the 85% baseline meeting-rate or explains why they land near 56-57% rather than closer to the decomposition model's 47.5% central estimate — both are notably higher than that model without justifying the deviation. 4. Neither forecast discusses potential tail scenarios like a sudden ceasefire/peace deal (which would trigger a "finalize" summit per Kremlin doctrine) or a collapse in talks leading to renewed urgency — both scenarios could sharply move probability but are absent from either rationale. 5. Both forecasters treat the Hungary-venue (9%) and Zelenskyy-Putin (0.6%) related markets as corroborating evidence for "no meeting broadly," but these are narrower/conditional questions (specific venue, different dyad) and shouldn't be assumed highly correlated with the binary Trump-Putin (any venue) outcome — this cross-market inference may be overweighted. 6. Confidence levels (0.48 and 0.56) are very close to the coin-flip midpoint and nearly identical to each other, suggesting genuine convergence, but neither explicitly grapples with the wide 21-78% uncertainty band from the scenario model, which implies their point estimates deserve wider error bars/lower confidence than stated.

56% (52% confidence)

Yes: 56% No: 44%

I anchor on the 55.5% YES market price and stay essentially at it. Structural factors favor Yes: no summit is scheduled, Budapest remains shelved, the Kremlin's explicit doctrine is that a Trump-Putin summit occurs only to finalize a deal, the territorial dispute is unresolved, and only ~4 months of the window remained as of the last confirmed reporting — an unscheduled leaders' summit typically requires weeks of visible prep. Countering that, the market's -17pt 30-day slide toward 'they meet' likely reflects post-August information not in the brief (envoy diplomacy via Witkoff/Kushner/Dmitriev, Trump's openness), so I decline to push meaningfully above the anchor as both forecasters did. The critique correctly notes the related-market signals (Hungary venue 9%, Zelenskyy-Putin 0.6%) are only weakly correlated with the any-venue Trump-Putin question and shouldn't add much Yes weight, and that a sudden ceasefire would trigger a 'finalize' summit — a live tail that supports No. Net: a near coin-flip tilted modestly to Yes, with wide genuine uncertainty.

Total pipeline time: 267.2s