Prediction HFT
CULTURE
Measles cases in U.S. before 2026?

Measles cases in U.S. before 2026?

MARKETS12
CLOSESDec 31, 2025 Β· 12:00 AM UTC
EVENT VOLUME
$1.7M
MARKETS
12
LIQUIDITY
β€”

Markets in this event

12 markets Β· sorted by volume

Event activity

Across all 12 markets
24H VOLUME
β€”
Past 24 hours
TOTAL VOLUME
$1.7M
Since creation
LIQUIDITY
β€”
Available to trade

About this event

Context for traders

This market will resolve to "Yes" if there have been 2,200 or more confirmed cases of Measles (Rubeola) in humans in the territory of the United States of America in 2025 according to the CDC case counter by December 31, 2025, 11:59 PM ET. Otherwise, this market will resolve to "No". The resolution source for this market will be the CDC Measles (Rubeola) counter (see: https://www.cdc.gov/measles/data-research/index.html) at the resolution time. If the counter becomes unavailable, another credible source will be used. Note: Only cases reported by the CDC Measles (Rubeola) counter will qualify, regardless of reports from U.S. State agencies or other sources.

How trading works

Polymarket uses a central limit order book (CLOB) model β€” you can buy or sell shares of any outcome at the current market price, or place limit orders. Prices represent implied probability: a $0.65 contract means the market prices a 65% chance of that outcome.

FAQ

Resolution & format
How are markets in this event resolved?+
Each market resolves based on the official outcome as verified by the UMA Optimistic Oracle.
When do these markets close?+
Trading closes at Dec 31, 2025 Β· 12:00 AM UTC. After close, the UMA oracle proposes a resolution and a 2-hour dispute window opens before final settlement.
How many markets are in this event?+
This event contains 12 markets. Each market settles independently β€” you can trade any or all of them.
What happens if the resolution source is unavailable?+
If the primary resolution source is unavailable, the market may be delayed or resolved by UMA oracle vote using credible alternative sources. Polymarket's optimistic oracle has final authority on disputed resolutions.
How do I trade on Polymarket?+
You need a Polymarket account (sign up with email or crypto wallet). Connect a Polygon-compatible wallet, fund it with USDC, and you can buy or sell shares of any outcome. All settlements are in USDC.