US GDP growth in Q2 2026?

Prediction market odds reflect real-money incentives and aggregate dispersed information from thousands of traders, often diverging from consensus economist forecasts. As of now, Polymarket prices a greater-than-2.5% outcome at 43.0%, suggesting markets see moderate growth as more likely than many traditional forecasters. Kalshi assigns 99.0% to the 2.0–2.5% band, indicating traders expect slower expansion. These odds typically embed forward-looking expectations about Fed policy, labor markets, and consumer spending that may not yet be fully reflected in analyst surveys, making them a complementary signal to Bloomberg consensus or Fed projections.

Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Kalshi and Polymarket attract different trader bases, liquidity pools, and risk tolerances. Kalshi's binary structure—real GDP above or below 2.5%—appeals to traders seeking clarity on a single threshold, while Polymarket's 2.0–2.5% band captures those betting on a narrower, mid-range outcome. Differences in order-book depth, fee structures, and user demographics can also shift prices. Additionally, each platform may weight recent economic data or forward guidance differently, and traders may hedge positions across venues, creating temporary spreads. These divergences typically narrow as resolution approaches and arbitrage opportunities attract cross-platform traders.

The market resolves on Jul 30, 2026, shortly after the US Bureau of Economic Analysis releases its official Q2 2026 GDP estimate. Resolution hinges on the final annualized real GDP growth rate published by the BEA, which becomes the ground truth for all outcome determinations. Traders should monitor BEA release schedules and any preliminary or revised figures that may affect settlement. The exact outcome criteria—whether based on the advance, second, or final estimate—are specified in each platform's contract terms and should be reviewed before trading.

Key catalysts include Federal Reserve interest-rate decisions, inflation reports, employment data, and consumer spending indicators released in the months leading to Q2 2026. Trade policy shifts, geopolitical developments, and corporate earnings revisions can reshape growth expectations. First-quarter 2026 GDP releases will provide a baseline and momentum signal. Unexpected shocks—financial stress, supply disruptions, or major fiscal policy changes—could rapidly reprrice odds. Additionally, Fed forward guidance and yield-curve movements often precede GDP revisions, making Treasury markets and Fed communications important early signals for prediction market traders.