YES
100%
PRICE $1.00 · IMPLIED 100%▸ BUY YES
CULTURE
1,600+ Measles cases in U.S. by October 31?
RESOLVESOct 31, 2025 · 12:00 AM UTC
CONTRACT0xb755…ed1b
Current odds
Live · updates every 20sNO
0%
PRICE $0.00 · IMPLIED 0%▸ BUY NO
Price history
OPEN 24H
0.96
Yes
HIGH 24H
0.99
at 11:42 ET
LOW 24H
0.93
at 02:18 ET
CHANGE
+0.04
+7.0% on Yes
Market stats
Polymarket · CLOB24H VOLUME
—
Past 24 hours
TOTAL VOLUME
$27k
Since creation
LIQUIDITY
$0
Available to trade
Recent trades
Last 10 fills · live| TIME | SIDE | PRICE | SIZE | VALUE | TRADER |
|---|---|---|---|---|---|
About this market
ContextThis market will resolve to "Yes" if there have been 1,600 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 October 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 — you can buy or sell shares of any outcome at the current market price, or place limit orders at your target price. All positions are settled in USDC when the market resolves.
Resolution
Markets resolve through UMA's Optimistic Oracle. After the market closes, a proposer submits a resolution, followed by a 2-hour dispute window. If no dispute is raised, the resolution is accepted. Disputed markets go to UMA token holder vote.
FAQ
Resolution & tradingHow is this market resolved?+
The market resolves based on the official outcome as verified by the UMA Optimistic Oracle.
When does this market close?+
Trading closes at Oct 31, 2025 · 12:00 AM UTC. After close, the UMA oracle proposes a resolution and a 2-hour dispute window opens before final settlement.
What are the possible outcomes?+
The possible outcomes are: Yes (100%), No (0%). Each contract pays out $1 if correct, $0 otherwise.
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 at the current market price. All settlements are in USDC.