Market price history. From 19¢ on Apr 5, 2025 to 35¢ on Sep 2, 2026. Lowest 1¢ on Jun 11, 2025; highest 65¢ on Feb 12, 2026.
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If the average number of measles cases annually from 2025 to 2028 is at least 5000, then the market resolves to Yes.