Short Answer
1. Executive Verdict
- Atlanta Fed's 4.2% Q4 2025 GDPNow forecast warrants significant caution.
- AI infrastructure spending by hyperscalers is significantly reshaping economic forecasts.
- GDP-GDI divergence signals notably lower growth than the GDPNow forecast.
- Government shutdowns introduce significant uncertainty into initial GDP estimates.
- Advance Q4 2025 GDP estimate release on February 20, 2026 is critical.
- Market consensus for Q4 2025 GDP growth hovers around 2.5%.
Who Wins and Why
| Outcome | Market | Model | Why |
|---|---|---|---|
| Above 3.5% | 47% | 45.5% | A period of rapid disinflation, enabling aggressive monetary easing, could fuel this outcome. |
| Above 1.0% | 1% | 1% | Stable inflation and a robust labor market should support ongoing economic expansion. |
| Above 3.0% | 63% | 62.5% | Strong consumer demand, coupled with significant business capital expenditure, could drive high growth. |
| Above 2.5% | 79% | 0.9% | Accelerated productivity gains and technological advancements might lead to stronger performance. |
| Above 2.0% | 88% | 1% | Improved global trade conditions and increasing domestic investment could boost GDP. |
Current Context
2. Market Behavior & Price Dynamics
Historical Price (Probability)
3. Significant Price Movements
Notable price changes detected in the chart, along with research into what caused each movement.
Outcome: Above 3.5%
📉 January 29, 2026: 14.0pp drop
Price decreased from 70.0% to 56.0%
📈 January 27, 2026: 9.0pp spike
Price increased from 62.0% to 71.0%
Outcome: Above 3.0%
📈 January 23, 2026: 18.0pp spike
Price increased from 55.0% to 73.0%
📉 January 22, 2026: 15.0pp drop
Price decreased from 72.0% to 57.0%
Outcome: Above 2.5%
📈 January 16, 2026: 12.0pp spike
Price increased from 73.0% to 85.0%
4. Market Data
Contract Snapshot
Based on the provided page content, the specific rules for YES/NO resolution, key dates, and any special settlement conditions are not detailed. The content only states the market is about "US GDP growth in Q4 2025?".
Available Contracts
Market options and current pricing
| Outcome bucket | Yes (price) | No (price) | Implied probability |
|---|---|---|---|
| Above -0.5% | $1.00 | $0.01 | 100% |
| Above 0.5% | $1.00 | $0.02 | 100% |
| Above 0% | $1.00 | $0.01 | 100% |
| Above 1.0% | $1.00 | $0.02 | 100% |
| Above 1.25% | $1.00 | $0.05 | 100% |
| Above 1.5% | $0.96 | $0.05 | 96% |
| Above 1.75% | $0.95 | $0.07 | 95% |
| Above 2.0% | $0.88 | $0.13 | 88% |
| Above 2.5% | $0.79 | $0.22 | 79% |
| Above 3.0% | $0.63 | $0.38 | 63% |
| Above 3.5% | $0.47 | $0.55 | 47% |
| Above 4% | $0.31 | $0.70 | 31% |
| Above 4.5% | $0.17 | $0.84 | 17% |
| Above 5% | $0.11 | $0.90 | 11% |
| Above 5.5% | $0.06 | $0.95 | 6% |
| Above 6% | $0.02 | $0.99 | 2% |
Market Discussion
Discussions regarding US GDP growth in Q4 2025 highlight a divergence in expectations, with some anticipating robust expansion while others project a more modest slowdown . Optimistic viewpoints, often supported by the Atlanta Fed's GDPNow model, suggested growth rates around 4.2-5.4%, fueled by resilient consumer spending, strong private final domestic demand, and investment, particularly in artificial intelligence . Conversely, professional forecasters and economic outlooks from October and November 2025 predicted a deceleration, with estimates ranging from 1.0-2.2%, citing factors such as weaker consumer spending, subdued housing activity, and the lingering impact of fiscal restraint and tariffs contributing to sticky inflation . A significant debate on platforms like Reddit centered on whether the higher GDP figures accurately represented underlying economic health, questioning if a decrease in imports, while mathematically boosting GDP, truly indicated a surge in domestic production or consumption, and noting a "GDP-Labor Market Paradox" where strong growth coexists with a softening labor market .
5. How Reliable Is Atlanta Fed's 4.2% Q4 2025 GDPNow Forecast?
| Q4 2025 GDPNow Forecast | 4.2% |
|---|---|
| Shutdown Impact on GDP Growth | 1.0 to 2.0 percentage points reduction |
| Volatile Component Contribution | 1.9 percentage points |
6. How Do Government Shutdowns Impact GDP Estimates and Revisions?
| Q1 2019 Advance Real GDP Growth | 3.2 percent |
|---|---|
| Q1 2019 Net Real GDP Revision | -0.1 percentage points |
| Estimated Q1 2019 Shutdown GDP Impact | -0.3 percentage points (BEA estimate) |
7. How Is Massive AI Infrastructure Spending Reshaping Economic Forecasts?
| Amazon FY2025 CAPEX Guidance | $125 billion (majority for AWS AI) |
|---|---|
| 2025 Hyperscaler AI CAPEX Growth Rate | Approximately 70% year-over-year |
| 2026 Projected AI CAPEX Growth Rate | Low-30% range |
8. What Does the GDP-GDI Divergence Signal for Q4 2025 Growth?
| Q4 2025 Real GDP Growth Forecast | 4.2% (Atlanta Fed GDPNow ) |
|---|---|
| Q4 2025 S&P 500 Blended EPS Growth | +11.9% year-over-year (Earnings reports ) |
| Dec 2025 Private Nonfarm Wage Growth | +3.8% year-over-year (BLS report ) |
9. What are the Q4 2025 GDPNow Model Inputs and Historical Accuracy?
| Key Data Release Window | February 10-19, 2026 (Projected) |
|---|---|
| Recent Median Absolute Error | 0.475 percentage points (Q1 2024 - Q4 2025 analysis) |
| Historical Average Absolute Error | 0.77 percentage points |
10. What Could Change the Odds
Key Catalysts
Key Dates & Catalysts
- Expiration: May 01, 2026
- Closes: February 20, 2026
11. Decision-Flipping Events
- Trigger: The most critical catalyst for the "US GDP growth in Q4 2025?" prediction market will be the release of the advance estimate for Q4 2025 GDP by the U.S [^] .
- Trigger: Bureau of Economic Analysis (BEA) on February 20, 2026 [^] .
- Trigger: A significantly higher-than-expected figure, exceeding the market consensus of around 2.5% (or the Wall Street Journal survey's 2.2%), would strongly push the "YES" outcome, especially given some models like the Atlanta Fed's GDPNow suggested 4.2% [^] .
- Trigger: Conversely, a lower-than-expected estimate, particularly if it falls below 2.2% or indicates economic contraction, would be a strong bearish catalyst, boosting the "NO" outcome [^] .
13. Historical Resolutions
Historical Resolutions: 50 markets in this series
Outcomes: 26 resolved YES, 24 resolved NO
Recent resolutions:
- KXGDP-25OCT30-T4.0: NO (Oct 30, 2025)
- KXGDP-25OCT30-T3.5: YES (Oct 30, 2025)
- KXGDP-25OCT30-T3.0: YES (Oct 30, 2025)
- KXGDP-25OCT30-T2.5: YES (Oct 30, 2025)
- KXGDP-25OCT30-T2.0: YES (Oct 30, 2025)
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