
Resolved Yes on 22 Oct 2025.
The last daily price before settlement had Yes at 99.5%. Yes opened at 63% on 18 Sep 2025. Before it settled, the high was 99.5% on 17 Oct 2025 and the low 60% on 25 Sep 2025. Its largest one-day move was 22 points down, to 67% on 8 Oct 2025. $27.02K traded over the market's life.
23 wallets still hold shares. Winners redeem theirs after settlement, so what is left is mostly the losing side.
Polymarket record as of Oct 22, 3:40 PM UTC
Daily closes of the Yes price, Polymarket CLOB, 35 points, 18 Sep 2025 – 22 Oct 2025
| Observed | Yes price |
|---|---|
| 18 Sep 2025 | 63.0% |
| 22 Oct 2025 | 99.5% |
Winners have redeemed their shares, so most of what is left is the losing side.
| Trader | Outcome | Shares |
|---|---|---|
| PhongLeXBT | No | 2.72K |
| Bright Horizon 81D6 | No | 1.02K |
| boogz | No | 300 |
| Vaskebjoedn | No | 288.03 |
Every wallet's public record, and 80,000 ranked by lifetime P&L: Polymarket leaderboard
This 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.
Official listing: polymarket.com/event/1600-measles-cases-in-us-by-october-31
| Recon842 | No | 265.73 |
| Bright Signal 14DE | No | 166 |
| Drachenlord | No | 34.22 |
| S888 | No | 30 |
| Aleksandar15 | No | 20.83 |
| Deafening-Possible | No | 14 |
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