Tools chosen: kalshi_direct kalshi_related earnings_data claude_news gdelt_news wikipedia code_execution polymarket_related

Sub-questions (Fermi decomposition)

Planner reasoning

This is a Kalshi threshold market on a company operating statistic; the key is UAL's historical annual passenger counts and the recent growth trend, plus the ladder of other strike prices in the same Kalshi event to back out an implied distribution. Market price is the primary anchor, supplemented by UAL traffic reports and capacity guidance.

# Current state United Airlines' 2026 full-year "passengers flown" figure will not be finalized/reported until United's FY2026 10-K/earnings release (early-to-mid 2027); the market currently prices a near-coin-flip (48% YES) on whether that reported figure exceeds 186 million. As of mid-2026, UAL has flagged a capacity slowdown (fuel-cost driven) for H2 2026 versus its original growth plan, creating downside risk to the 186M bar. # Timeline of key events - 2019: United + United Express carried >162M customers (confirmed, ir.united.com FY2019 release). - 2023 (Jan 2024 release): UAL carried a then-record 165M passengers (confirmed, ir.united.com FY2023 release). - 2024 (Jan 2025 release): UAL set a new record, ~173.6M revenue passengers per 10-K (flight-segment basis); PR framed it as "nearly 174M" system-wide (confirmed, ir.united.com/10-K; expandedramblings.com). - 2025 (Jan 2026 release): UAL reported a record 181M passengers flown for FY2025, ranked #2 in on-time departures (confirmed, prnewswire.com FY2025 earnings release). - Early 2026: Initial 2026 guidance targeted strong growth (adj. EPS $12–$14) (reported). - 2026-06-07/08: IATA/industry reports a global jet-fuel price shock halving airline industry profitability (confirmed, IATA/euronews). - Q1 2026 (reported by ~Mar/Apr 2026): UAL capacity +3.4% YoY actual (confirmed, SEC 8-K/ex-99.1). - Q2 2026 (reported by ~Jul 2026): UAL capacity +3.5% YoY; full-year adj. EPS guidance range narrowed to $9–$11 (raised low end from $7) (confirmed, SEC ex-99.1/press release). - Mid-2026: United guides to a ~5-point capacity cut vs. original 2026 plan due to higher fuel prices; H2 2026 (Q3+Q4) capacity guided flat-to-+2% YoY (confirmed, UAL press release). - 2026 (delivery plan): ~130 new aircraft (20 B787-9, 100+ narrowbody incl. first A321XLRs) expected in 2026 — supports capacity growth despite guidance trim (reported). # Event Will United Airlines Holdings Inc. report Above 186 million passengers flown in 2026 (per its official annual traffic report, e.g., 10-K)? # Outcomes to forecast - Yes (>186,000,000 passengers in 2026) - No (≤186,000,000 passengers in 2026) # Kalshi market anchor Current YES price: **48.00%** (near coin-flip). 7-day change: -3pp; 30-day change: -3pp. Price range over past 28 days: 48%–64% (declining trend). Average daily volume: 229 contracts — thin but consistent liquidity. [kalshi_direct] # Sub-question answers 1. **Passengers 2018–2025**: 2019 ≈162M; 2023 = 165M (record at time); 2024 ≈173.6M (10-K, flight-segment basis) / "nearly 174M" system-wide; 2025 = 181M (record). 2018/2020–2022 not directly sourced (2022 industry-wide US enplanements were 853M, down from 2019 peak — COVID recovery still underway). [claude_news, ir.united.com, expandedramblings.com] 2. **2025 implied count & YoY growth**: 181M in 2025 vs. 173.6M in 2024 = +4.3% YoY, continuing a decelerating post-COVID growth trend (2022→2023 +14.1% anomalous snapback; 2023→2024 +5.2%). [claude_news, code_execution] 3. **2026 capacity/load factor guidance**: Q1 2026 capacity +3.4% YoY actual; Q2 2026 +3.5% YoY; but H2 2026 (Q3–Q4) guided down to flat-to-+2% YoY due to a ~5-point capacity cut from original plan (fuel-cost driven). Blended full-year capacity growth likely lands ~2–3%, implying passengers in the ~185–187M range if load factors hold flat. [claude_news, SEC ex-99.1] 4. **Full Kalshi ladder**: Not retrieved — kalshi_related found no additional strike thresholds in the KXUALA series (0 markets returned beyond the 186M strike); only single-strike data available. [kalshi_related] 5. **Macro/industry risks**: A 2026 jet-fuel price shock has already halved global airline industry profit expectations (IATA, June 2026) and directly triggered UAL's capacity trim. No shutdown/ATC-specific data found in this research pass; general demand described as "solid ... but increasingly constrained on the cost side." [gdelt_news, claude_news] 6. **Definition of "passengers flown"**: UAL's public disclosures consistently report a combined "United and United Express" (mainline + regional) system-wide total (e.g., "162M customers" in 2019, "174M system-wide" in 2024), and the 10-K separately reports "revenue passengers" by flight segment (173.6M in 2024) — these two figures are reasonably close but not identical; unclear which exact metric Kalshi's rules use (rules field blank). [claude_news, ir.united.com] # Key facts (high-confidence, factual) 1. [ir.united.com/prnewswire] FY2025 passengers = 181M (record). 2. [SEC/ir.united.com] FY2024 = 173.6M (10-K) / ~174M (PR, system-wide). 3. [ir.united.com] FY2023 = 165M. 4. [SEC ex-99.1] Q1 2026 capacity +3.4% YoY; Q2 2026 +3.5% YoY. 5. [UAL press release] H2 2026 capacity guided flat-to-+2% YoY after a 5-point cut vs. original plan. 6. [IATA, 2026-06-07] Global jet fuel price shock is halving industry profit expectations in 2026. # Cross-market signals - Kalshi related: Same-ticker series shows only this single strike (186M); no ladder data retrieved for arbitrage comparison. - Polymarket: No matching markets found (0/100 scanned). - Sportsbook implied: N/A (not an athletic event). # Analyst opinions and speculation - code_execution model: baseline-sensitive; if 2025=181M, P(>186M)≈53–69%; if 2025 were lower (177-179M), P drops to 20–51%. Since 2025 actual is now confirmed at 181M (not an estimate), this pushes toward the higher end of that range, but H2 2026 guidance cut reintroduces meaningful downside. - Aggregate/blended estimate before confirming 181M baseline: ~50%±15%, central cluster ~40-46%. # Directional lean per outcome - **Yes**: 2025 baseline (181M, confirmed) + robust H1 2026 capacity growth (+3.4-3.5%) + large aircraft delivery plan (130 jets) support reaching/exceeding 186M if load factors stay flat. - **No**: Explicit 5-point capacity cut and flat-to-+2% H2 guidance (fuel shock) directly compress full-year growth below the ~2.8% needed from the 181M base; Kalshi's declining price trend (-3pp/wk) suggests market sentiment moving toward No. # Gaps / unknowns - Exact resolution-metric definition (mainline+regional vs. revenue passengers) unconfirmed. - No confirmed Q3/Q4 2026 actual traffic data yet (only guidance). - No full Kalshi ladder (other strikes) to cross-check implied distribution shape. # Calibration anchors - Kalshi current YES price: 48% (anchor), trending down. - 2025 confirmed base (181M) requires +2.76% growth to hit 186M; historical non-COVID YoY growth range was +4.3–5.2%, but 2026 guidance implies deceleration to ~2-3%, placing outcome near the threshold — consistent with market's ~48% pricing.

1. **Unsupported capacity-to-passenger conversion ratio**: Forecast 1 asserts "2024→2025: ~+4.0–4.3% passengers vs. ~5% capacity," but the brief never confirms 2025 ASM growth—this key driver of its below-market 40% call appears fabricated rather than sourced, and should be flagged as a weak justification for deviating from the 48% anchor. 2. **Definitional ambiguity underweighted**: The brief explicitly notes "unclear which exact metric Kalshi's rules use" (system-wide customers ~174M in 2024 vs. revenue passengers 173.6M)—this ~0.5-1M swing directly affects whether the 2025 base is above/below 181M and whether 186M is cleared, yet neither forecast widens its uncertainty band or discusses how metric choice could tip a near-threshold outcome either way. 3. **Asymmetric tail risk from aircraft deliveries not addressed**: The evidence notes ~130 new aircraft in 2026, "100+ narrowbody incl. first A321XLRs"—narrowbody-heavy fleet growth could add passengers disproportionately faster than ASMs (opposite of Forecast 1's widebody-drag logic), an upside scenario neither forecaster considers despite it directly contradicting their capacity-growth-outpaces-passenger-growth assumption. 4. **Insufficient discussion of further fuel-shock escalation (fat left tail)**: Only one fuel shock (June 2026, IATA) is factored in via the H2 guidance cut, but neither forecast considers the possibility of a second/deepening fuel or demand shock in Q3/Q4 that could push H2 growth negative rather than flat-to-+2%, which would meaningfully fatten the No tail beyond what a ~52% probability implies. 5. **Thin-liquidity market signal overweighted**: Both forecasts treat the Kalshi price decline (64%→48%, -3pp/wk) as informative sentiment, but with only ~229 contracts/day of average volume, this drift could reflect noise or a single large order rather than genuine information—neither forecaster discounts the anchor for its low liquidity despite the brief flagging it as "thin." 6. **Inconsistent confidence calibration between forecasts**: Forecast 1 confidently shades to 40% (a 8pp deviation from market) citing conversion-ratio logic that isn't well-sourced, while Forecast 2 stays essentially at market (48%) citing "no sufficiently strong unpriced evidence"—this is a direct contradiction on whether the fuel-shock/H2-guidance evidence constitutes a strong enough signal to move off the anchor, and neither reconciles why their central estimates (184-186M) actually imply something closer to 50/50 rather than a clear tilt to No.

44% (57% confidence)

Yes: 44% No: 56%

From the confirmed 181M 2025 base, clearing 186M requires ~+2.8% growth, while blended 2026 capacity guidance (H1 +3.4–3.5%, H2 flat-to-+2% after the fuel-driven 5-point cut) implies roughly +2.3–2.8% — landing essentially on the threshold. The critique is right that Forecast 1's capacity-to-passenger conversion drag is unsourced and that narrowbody-heavy deliveries (100+ jets, A321XLRs) could push passenger counts faster than ASMs, so I do not shade as far below the market as 40%. Offsetting upside is the fat left tail: any further fuel/demand deterioration in Q3–Q4 could turn H2 growth negative, and the market's steady 64%→48% drift, even if thin, is directionally consistent with the guidance cut. Definitional ambiguity (system-wide customers vs. revenue passengers, a ~0.5–1M swing) is roughly symmetric near the strike and mainly widens uncertainty rather than shifting the center, so I settle slightly below the 48% anchor.

Total pipeline time: 190.9s