Scan: US recession by end of 2026?

date	predicted	market price	confidence
2026-09-06	6%	8%	73%
2026-08-29	8%	8%	76%
2026-08-22	7%	8%	77%

1. Planner Fable 5.1 · Fermi decomposition + tool plan

Tools chosen: polymarket_direct kalshi_related polymarket_related fred article_search claude_news code_execution

Sub-questions (Fermi decomposition)

What is the current Polymarket YES price and how has it trended over the past 90 days?
What were the BEA-reported real GDP growth rates for Q2 2025, Q3 2025, and any subsequent quarters released to date, and have any been negative?
What do current labor market indicators (unemployment rate, Sahm rule gap, initial claims, payroll growth) and the yield curve indicate about near-term recession risk?
What are the latest consensus forecasts (Fed SEP, GDPNow, Blue Chip/WSJ survey, NY Fed recession probability model) for GDP growth and recession probability through 2026?
What is the historical base rate of the US entering a recession (NBER-defined or two consecutive negative quarters) within any given ~18-month window?
Are there major shocks in play (tariffs, government shutdown, credit events, oil prices, AI capex slowdown) that materially raise or lower recession odds for 2026?
What do Kalshi's recession markets and other related Polymarket markets (e.g., GDP quarterly prints) price for the same or overlapping outcomes?

Planner reasoning

This is a Polymarket macro question with two resolution paths: two consecutive negative real GDP quarters (Q2 2025–Q4 2026) or an NBER declaration. Key drivers are the realized GDP prints so far, current leading indicators (yield curve, unemployment/Sahm rule, claims), consensus/Fed forecasts, and the historical base rate of recession over ~2-year windows. Cross-market prices on Kalshi and related Polymarket markets provide independent crowd anchors.

2. Research Parallel tool calls

tool	status	time	items	summary
polymarket_direct	OK	0.3s	1	## This Market's Polymarket Data US recession by end of 2026? - Current price (probability): 11.50% - 7-day price change: +4.00% - 30-day price change: +4.00% - Total volume: $1,757,374 (USD notional) - Price range: 6.50% - 15.50% - Data points: 90 days
kalshi_related	OK	4.4s	1	1 related markets / summaries. series KXRECSSNBER: 0 markets (skipped 2 no-signal) \| series KXGDP: 0 markets (skipped 36 no-signal) \| series KXRECESSION: 0 markets (skipped 0 no-signal) \| keyword 'recession': no matches \| keyword 'GDP negative': ok \| keyword 'NBER': no matches
polymarket_related	OK	0.1s	0	Scanned 100 active Polymarket markets, kept 0 matches. keyword 'recession': 0 markets \| keyword 'GDP': 0 markets \| keyword 'NBER': 0 markets
fred	OK	49.5s	6	Fetched 6 FRED series (lookback=730d).
article_search	OK	5.1s	34	Fetched 34 unique articles across 4 queries (lookback=45d). 'US recession risk 2026 forecast': 10 articles \| 'BEA GDP advance estimate quarterly real GDP': 10 articles \| 'NBER business cycle dating committee recession': 10 articles \| 'economists recession probability survey 2026': 10 articles
claude_news	OK	33.6s	28	Key findings on US recession risk for 2026 (as of mid-September 2026): - BEA GDP prints, 2025–2026: Q2 2025 real GDP was revised up to 3.8% in the third estimate (advance 3.0%, second 3.3%) , following a 0.6% decline (revised) in Q1 2025 . Q3 2025 growth was strong at 4.4% . Growth then
code_execution	OK	40.9s	0	Historical base rates (NBER recessions, 1950–2024, 900 months, 11 recessions): - Unconditional 15-month window hit rate: Across all 886 possible 15-month windows since 1950, a recession was ongoing or began in 31.0% of them (base rate ≈ 0.31). This treats every calendar starting point e

3. Evidence Brief Sonnet 5 · 7022 chars

# Current state As of mid-September 2026, neither resolution condition has been met: BEA has NOT reported two consecutive negative quarterly GDP prints (the only negative quarter since Q2 2025 was a single one, Q1 2025 at -0.6%, which is outside the window anyway), and NBER has not declared a recession. GDP growth has decelerated from a Q3 2025 peak (4.4%) to modest but still-positive rates in Q4 2025 (0.5%) and 2026 (Q1: 1.6%, Q2: 1.5%), with GDPNow tracking a re-acceleration to ~4.4-4.8% for Q3 2026. # Timeline of key events - 2025-Q1: Real GDP -0.6% (confirmed, BEA/FRED) — single negative quarter, doesn't count toward the two-consecutive-quarter test within the Q2'25–Q4'26 window. - 2025-Q2: Real GDP +3.8% (final, confirmed BEA) — rebound. - 2025-Q3: Real GDP +4.4% (confirmed BEA) — cyclical high. - 2025-Q4: Real GDP advance 1.4%, revised down to 0.5% (confirmed BEA) — sharp deceleration but still positive. - 2026-02 (~Jan): Goldman Sachs starts 2026 with 20% 12-month recession odds (down from 30%), GDP forecast 2.5% (reported). - 2026-02: US labor market shock — economy reportedly loses 92,000 jobs in February, unemployment nearing 4.5% (reported, Yahoo Finance/Zandi commentary). - 2026-Q1: Real GDP advance 2.1%, second estimate 1.6% (confirmed BEA). - 2026-03: Iran war escalation drives oil-price shock; Goldman raises recession odds to 30%, JPMorgan to 35%, Zandi (Moody's) to ~49%, EY-Parthenon to 40% (reported/multiple banks). - 2026-Q2: Real GDP second estimate 1.5% (confirmed BEA) — growth held up despite oil shock fears. - 2026-08: Job market "unexpectedly shed jobs" in July per CNN reporting (reported); unemployment rate actually eased to 4.1% by August per FRED (confirmed) — some data conflict/noise. - 2026-09-01 to 09-14: Atlanta Fed GDPNow tracks Q3 2026 growth at 4.0%→4.8%→4.4% (confirmed, Atlanta Fed), signaling strong Q3 momentum. # Event Will the US enter a recession (BEA: two consecutive negative real-GDP quarters between Q2 2025–Q4 2026, OR NBER declares one) by the time Q4 2026 advance GDP is released? # Outcomes to forecast - Yes (recession triggers per BEA two-quarter rule or NBER declaration) - No # Kalshi market anchor No Kalshi-direct price was returned for this specific ticker; the Polymarket price for this identical market (matching ticker) is 11.5% YES, up from a 90-day low of 6.5% and near-high of 15.5%, with +4% moves over both 7d and 30d — a modest but persistent upward drift. Volume: ~$1.76M notional (moderately liquid). Treat 11.5% as the primary consensus anchor. Kalshi-related search found no matching recession contract, only unrelated long-run GDP-bucket markets (KXGDPYEAR-35/36), not directly comparable. # Sub-question answers 1. **Polymarket trend** — 11.5% now, +4% over both 7d/30d, range 6.5–15.5% over 90 days; drifting up but still low. [polymarket_direct] 2. **BEA GDP prints** — Q1'25 -0.6%, Q2'25 +3.8%, Q3'25 +4.4%, Q4'25 +0.5% (revised from 1.4%), Q1'26 +1.6%, Q2'26 +1.5%; no negative quarter since Q1 2025, no two-consecutive-negative pair. [FRED/claude_news] 3. **Labor market & yield curve** — Unemployment ~4.1-4.4% (recent trend down to 4.1% by Aug 2026, no clear Sahm-rule trigger); initial claims stable ~190-217k (no spike); payrolls grew steadily (~158.4M→159.1M); 10Y-2Y spread positive (+0.32 to +0.43), i.e., not inverted — historically a lower near-term recession signal. [FRED] 4. **Consensus forecasts** — Goldman: 20-30% 12-mo recession odds (rose on oil shock, framed as "not base case"); JPMorgan: 35%; Zandi/Moody's: ~49%; EY-Parthenon: 40%; GDPNow Q3'26 tracking 4.4-4.8% (strong). No Fed SEP or WSJ survey figure retrieved. [claude_news] 5. **Historical base rate** — Unconditional 13-15 month recession-window hit rate ~18-31%; conditional (given not already in recession) ~18.5%; current expansion (67 months, from Apr 2020 trough) sits near historical median duration (65.5 months), implying moderately elevated but not extreme duration risk. [code_execution] 6. **Shocks in play** — Iran war/oil price shock (Q1 2026) was the major driver of raised recession odds among banks; government debt ceiling ($41.1T) looms in 2027; midterm election uncertainty; no credit event or AI capex crash reported. [claude_news/article_search] 7. **Cross-market** — No separate Kalshi recession/GDP-quarterly market found matching this event; only unrelated long-horizon GDP bucket markets on Kalshi (2035/2036), not informative for 2026 recession odds. # Key facts (high-confidence, factual) 1. [FRED] No two consecutive negative GDP quarters have occurred since Q1 2025 through Q2 2026 (latest available). 2. [FRED] Yield curve (10Y-2Y) is positively sloped (~+0.3-0.4), not inverted, as of Sept 2026. 3. [Atlanta Fed] GDPNow tracks Q3 2026 growth near 4.4-4.8%, well above recession-consistent pace. 4. [FRED] Unemployment rate trending down slightly to 4.1% by Aug 2026 from 4.5% in Nov 2025. 5. [claude_news] Multiple bank economists raised recession odds to 30-49% in Q1 2026 amid oil shock, but growth stayed positive afterward. # Cross-market signals - Kalshi related: no direct recession-ticker match found; unrelated long-run GDP-bucket markets only. - Polymarket (this market): 11.5% YES, uptrending. - Sportsbook implied: n/a. # Analyst opinions and speculation - Bank recession-odds estimates range widely (20-49%) and were most elevated during the Q1 2026 Iran/oil shock; several (Goldman, JPMorgan) stressed recession is "not the base case." - Bearish voices (Zandi, K-shaped economy pieces, CNN) cite labor-market softening and fragility as understated risks; bullish voices cite AI capex boom, fiscal stimulus (OBBBA), and Fed easing as offsets. # Directional lean per outcome - **Yes**: Supported by decelerating GDP trend (4.4%→0.5% Q3'25→Q4'25), elevated bank recession-probability calls (30-49%) post oil shock, some labor-market softening reports (July job losses), fiscal/debt-ceiling stress ahead. - **No**: Supported by no negative quarters recorded since Q1 2025, strong GDPNow Q3 2026 tracking (4.4-4.8%), non-inverted yield curve, low/stable jobless claims, unemployment ticking down to 4.1%, and market pricing (Polymarket 11.5%) far below bank survey estimates — suggesting markets see recession as unlikely despite bank hedging language. # Gaps / unknowns - No Fed SEP or WSJ/Blue Chip survey recession probability retrieved. - Q3/Q4 2026 actual GDP not yet released — outcome hinges on data not yet in hand. - Conflicting July 2026 jobs report ("unexpectedly shed jobs") vs. FRED payroll/unemployment data showing improvement — needs reconciliation. - No NBER dating committee statements found in search. # Calibration anchors - Polymarket/Kalshi-linked YES price: 11.5% (primary anchor). - Historical base rate for ~15-month recession window: ~18-31% (unconditional), ~18.5% (conditional on no current recession). - Bank analyst 12-month recession odds (Q1 2026 peak): 20-49%, since likely moderated given subsequent positive GDP prints and strong Q3 2026 GDPNow tracking.

4. Forecasters Fable 5.1 + GPT-5.6 Sol · in parallel

claude-fable-5-1

70% conf

Yes	6%
No	94%

The two-consecutive-quarter path is nearly foreclosed: no negative print has occurred since Q1 2025, Q2 2026 came in at +1.5%, and Atlanta Fed GDPNow tracks Q3 2026 at 4.4–4.8% as of mid-September, so both Q3 and Q4 would need to flip negative (Q3 from a strongly positive nowcast) before the late-January 2027 advance release. The NBER path is also remote — the committee typically lags a year or more, and a 2020-style rapid declaration would require a sharp shock starting now, which non-inverted yield curve, stable ~190-217k claims, and unemployment easing to 4.1% do not signal. Bank recession odds (30-49%) were 12-month forecasts made during the Q1 oil shock and have since been contradicted by positive prints. The Polymarket anchor at 11.5% likely embeds tail/rule-ambiguity risk; given the specific GDPNow evidence the market may not fully reflect, I shade below the anchor to ~6% Yes.

gpt-5.6-sol

78% conf

Yes	8%
No	92%

The 11.5% YES Polymarket price is the primary consensus anchor, but current macro data justify a modest move toward No. Positive GDP through Q2 2026 and GDPNow's roughly 4.4% Q3 estimate make the two-consecutive-negative-quarter trigger highly unlikely within the remaining window. Unemployment near 4.1%, stable claims, continued payroll growth, and a positively sloped yield curve also point toward No, while the earlier oil shock did not push Q2 growth negative. Some labor-market weakness and elevated analyst recession estimates preserve tail risk, including an NBER declaration, but neither is currently the base case.

5. Devil's Advocate Sonnet 5 · red-team critique

Both forecasters shade below the Polymarket anchor (11.5%) to 6-8% without fully justifying why a moderately liquid market ($1.76M notional, drifting up +4% over 30d) is mispriced — this is a meaningful divergence from the stated "primary consensus anchor" that deserves more scrutiny than a brief mention of "tail/rule-ambiguity risk."

Neither forecast reconciles the base-rate tension: the historical conditional recession probability for a ~15-month window (~18.5%) is more than double their final estimates (6-8%), and while current GDPNow/labor data justify some discount, neither explains why they deviate so far from this reference class rather than just partially blending it.

The conflicting July 2026 labor data (CNN: "unexpectedly shed jobs" vs. FRED: unemployment easing to 4.1%) is flagged in the brief as an unresolved data conflict, but both forecasts simply pick the benign FRED reading without addressing the possibility that the labor market is softer than headline unemployment suggests (K-shaped economy narrative from Zandi/CNN).

Neither forecast adequately treats the NBER-declaration path's asymmetric timing risk: NBER typically lags 6-18 months, meaning even if a recession genuinely began in Q4 2026, it likely would NOT be declared before the Jan 31, 2027 close — this makes the "NBER declares" path even more remote than either forecaster's brief dismissal suggests, and should push both estimates lower still, or at least be argued more explicitly.

Both forecasts essentially ignore tail-shock scenarios between now (mid-Sept 2026) and the Q4 advance release — e.g., a renewed oil/Iran shock, a credit event, or a sudden AI-capex unwind — treating the elevated bank estimates (30-49%) as fully stale/superseded by positive Q2 data, when in fact those probabilities were assigned precisely because of shock risk that hasn't necessarily disappeared.

The two forecasts are highly convergent (6% vs 8%) with nearly identical reasoning chains, suggesting insufficient exploration of alternative framings (e.g., weighting bank consensus more heavily, or treating Polymarket's upward drift as informative signal rather than noise to be discounted).

6. Aggregator Fable 5.1 · final calibrated forecast

7% (74% confidence)

Yes: 7% No: 93%

Both resolution paths look remote from mid-September 2026: the BEA two-quarter rule now requires both Q3 and Q4 2026 to print negative, yet GDPNow tracks Q3 at 4.4-4.8% and no negative quarter has occurred since Q1 2025, while the NBER path is even less likely given the committee's typical 6-18 month lag (only 2020's crash-style shock produced a fast declaration). The critique correctly notes the divergence from the 11.5% Polymarket anchor and the ~18.5% base rate, but the base rate is unconditional on a strong nowcast and non-inverted curve, and low-probability long-dated prediction markets systematically overprice tails (favorite-longshot bias, capital lock-up), so a modest shade below the anchor is justified rather than a reversion to it. I do give weight to unresolved labor-market softness, oil/Iran shock recurrence, and resolution-rule ambiguity, which keeps me from going as low as 5-6%. Final call ~7% Yes, between the two forecasts and below the market anchor.

7. Entry Decision Fable 5.1 trader

Side

no

Position Size

$750

Contracts

843

Trader Confidence

74%

Trade rationale

Forecast p_yes 7.0% vs market 11.5% gives a -4.5% edge pointing to NO, and this is a with-the-favourite trade (both bot and market below 50%), the position type where this book has its best record (12/1). The rationale is not just 'market too confident' — it names concrete mechanics: the BEA two-quarter path needs Q3 AND Q4 2026 both negative while GDPNow tracks Q3 at 4.4-4.8%, and the NBER path is nearly foreclosed by the committee's 6-18 month declaration lag against a Jan 31, 2027 close (the Devil's Advocate's own point 4 argues this should push the estimate lower, not higher). The critic's valid concerns (base-rate tension, July labor ambiguity, shock tails) are real but mostly bear on whether a recession begins, not on whether either resolution criterion can be formally met in 137 days. Liquidity is solid ($1.76M, 1c spread), forecaster confidence 0.74 with a tight 2pp ensemble spread, and the book has no directly correlated US-recession exposure (Hormuz/coal positions are distinct themes).

Allocation logic

Sized at $750, the low end of the band, because the edge is only 4.5% and buying NO at ~$0.885 locks capital for 137 days for a ~5% max return; the concrete resolution-mechanics argument justifies entry but not a baseline $1000.

Entry price: $0.89

Current: $0.94

Status: OPEN

P&L: $33.80

Pipeline Timing

Total pipeline time: 164.6s

Per-tool research timings shown in the Research section above.