Recent UNCTAD and World Bank forecasts projecting 2026 global GDP growth at 2.5-2.6% contrast with the IMF's 3.0% outlook, contributing to the tight clustering of Polymarket probabilities around 3.0-3.1% and ≤2.9%. The primary driver remains the Middle East energy shock, which has elevated Brent crude prices and raised input costs for energy importers while supporting trade values through higher energy components. Offsetting factors include AI-related capital spending and resilient Asian growth, with India and China still expected to deliver above-trend expansion. Trader consensus, reflected in the near-even split between the two leading outcomes, incorporates these crosscurrents alongside risks from trade fragmentation and potential asset-price corrections, with limited scope for material revisions before year-end data releases.