Will there be at least 5000 measles cases in the U.S. in 2026 — what were the odds?

As of the last morning we tracked it, November 3, 2026, the market-consensus chance was 99.7%. That is the aggregated judgment of traders with money at stake, reported by The Morning Line — not our own prediction.

Will there be at least 5000 measles cases in the U.S. in 2026 — did the odds go up or down?

Up. Over the 11 days we tracked this question, the odds moved from 66% on September 22, 2026 to 99.7% on November 3, 2026 — a change of 34 points.

Will there be at least 5000 measles cases in the U.S. in 2026 — what were the highest and lowest odds?

Over 11 tracked days the odds ranged between 66% and 99.7%. The final reading of 99.7% sits at the top of that range.

Will there be at least 5000 measles cases in the U.S. in 2026?

Name: Daily market-consensus odds: Will there be at least 5000 measles cases in the U.S. in 2026?
Creator: The Morning Line
License: https://creativecommons.org/licenses/by/4.0/

Everything Else · tracked since September 22, 2026 · no longer updating — this question left the market on November 3, 2026

99.7%

Final tracked odds

As of November 3, 2026, market-consensus odds put the chance at 99.7%.

▲ 1 since the previous update. ▲ 1 over the last 7 days. Probabilities are market-consensus forecasts, not predictions.

How the odds have moved

Every outcome we track

Outcome	Oct 25	Today	Move
Yes	98%	99.7%	▲ 1

Full history table

Date	Yes
2026-11-03	99.7%
2026-10-25	98%
2026-09-30	87%
2026-09-29	86%
2026-09-28	88%
2026-09-27	86%
2026-09-26	84%
2026-09-25	78%
2026-09-24	72%
2026-09-23	68%
2026-09-22	66%

Use this data. The full daily history behind this page is free to download and reuse with a link back to this page: Download the full daily odds history (CSV) · the same history as JSON · about the open data. The record is final; past values never change.

Common questions

Will there be at least 5000 measles cases in the U.S. in 2026 — what were the odds?: As of the last morning we tracked it, November 3, 2026, the market-consensus chance was 99.7%. That is the aggregated judgment of traders with money at stake, reported by The Morning Line — not our own prediction.
Will there be at least 5000 measles cases in the U.S. in 2026 — did the odds go up or down?: Up. Over the 11 days we tracked this question, the odds moved from 66% on September 22, 2026 to 99.7% on November 3, 2026 — a change of 34 points.
Will there be at least 5000 measles cases in the U.S. in 2026 — what were the highest and lowest odds?: Over 11 tracked days the odds ranged between 66% and 99.7%. The final reading of 99.7% sits at the top of that range.

About this question

The Morning Line has reported the market-consensus odds on “Will there be at least 5000 measles cases in the U.S. in 2026” for 11 days, since September 22, 2026. As of November 3, 2026, market-consensus odds sit at 99.7%. The final tracked chance for a yes has risen from 66% to 99.7%, ranging between 66% and 99.7% across that stretch. These are reported probabilities, not our own predictions. The question left the market on November 3, 2026, and this page is now a permanent record.