Polymarket Measles cases in U.S. in 2026 odds
On Polymarket, the busiest line, ↑7.5k, is at 15%. The market settles by Dec 31, 2026, and $750 traded in the last 24 hours. Each contract pays $1 if it is right, so 15¢ reads as a 15% chance. We have not matched it to a Kalshi market yet, so there is no second price.
Polymarket odds on every outcome
Show 3 more outcomes
| Outcome | Chance | Yes price | 24h volume | |
|---|---|---|---|---|
| ↑3kFinal | 100% | 100¢ | $0 | |
| ↑3.5kFinal | 100% | 100¢ | $0 | |
| ↑500Final | 100% | 100¢ | $0 |
Chance is each outcome's Yes price on Polymarket. A Yes contract at 99¢ pays $1 if that outcome wins.
How the odds have moved
Polymarket's own series for the outcome the headline prices, from where its history starts; one venue, not a blend.
How this market resolves
Polymarket's own settlement wording, in full. This, not the headline, decides who gets paid.
Show the full rules
This market will resolve to "Yes" if there have been the specified amount or more confirmed cases of Measles (Rubeola) in humans in the territory of the United States of America in 2026 according to the CDC case counter between January 1, 2026, 12:00 AM ET and December 31, 2026, 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.
Scheduled resolution: Dec 31, 2026.
How to trade this market on Polymarket
- Check your state first. A few states restrict some contracts.
- Open a Polymarket account. Americans trade on Polymarket US. Our Polymarket review covers sign-up and payouts.
- Buy Yes or No at the price shown, 99¢ for ↑4k right now. Each contract pays $1 if you are right.
- Sell any time before it settles, or hold to the result. Polymarket's fees apply to each trade.
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Not on Kalshi here yet: we have not matched this question to a Kalshi market, so there is no second price to compare. Kalshi vs Polymarket compares the two venues.
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Common questions
What are the Polymarket odds on Measles cases in U.S. in 2026?
On Polymarket, the busiest line, ↑7.5k, is at 15%. That is a market-implied probability, not a forecast, and it moves as traders buy and sell.
How does this market resolve?
By Polymarket's own settlement rules for this market. Two venues can word the same question differently and settle differently, so read them before you trade.
Is this question on Kalshi too?
We have not matched it to a Kalshi market yet. When we do, both prices appear side by side here.
Can I trade this market in my state?
In most states, yes, on Polymarket US. A few states have acted against some contracts. Check your state first.
How accurate are Polymarket odds?
Often more accurate than polls, though never certain. A price of 70% should lose three times in ten. How accurate prediction markets are has the research.
What does it cost to trade on Polymarket?
A taker fee on most markets, largest near 50¢, and some categories charge nothing. Polymarket's fees has the detail.