
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
Market depth · 3.53M–3.56M
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
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Pandemic in 2026?
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Rules
This market will resolve according to the total number of births in the United States in 2026, as reported in the National Center for Health Statistics (NCHS) annual provisional births report for 2026, meaning the first NCHS report that presents provisional birth data for the full calendar year 2026, regardless of its exact title or format (see 2025 example, “Births: Provisional Data for 2025”: https://www.cdc.gov/nchs/data/vsrr/vsrr043.pdf), estimated to be released in April 2027.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/how-many-us-births-in-2026-20261026033533965AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+1 more outcomes
+13 more outcomes