
Polymarket shows market prices. Foretrace adds AI probability estimates, opposing evidence and a price-dependent outcome or pass decision for each open market.
Sampled market observations, not AI forecasts. Lines connect available observations. Legend values are current provider quotes; chart points may be older.
These are market-implied probabilities, not AI forecasts. A displayed quote may differ from the price available for your order.
This market is closed. Its historical data remains available.
How research worksThis market will resolve to "Yes" if the US Food and Drug Administration (FDA) withdraws or suspends its approval from any polio vaccine currently on the market between December 12, 2024, and April 29, 2025, 11:59 PM ET. Otherwise, this market will resolve to "No". If FDA approval is withdrawn or suspended for any specific population group (e.g. infants, toddlers, children), it will count toward a "Yes" resolution. For the purposes of this market an announcement by the FDA that it will withdraw or suspend its approval will count toward a "Yes" resolution, regardless of when it goes into effect. The primary resolution source for this market will be official information from the FDA and the US government, however a consensus of credible reporting will also be used.
Retrieved 10/4/2026, 4:44:44 AM UTC. Provider data is cached for up to 60 seconds. The upstream quote timestamp can be older.