Future Index
Forecast marketsPolymarketOpenUp to date

Will Roy Cooper win the 2028 Democratic presidential nomination?

Probability

0.2%

very unlikely

Computed from this source alone. Observed .

Movement

Change in probability, in percentage points (pp).

  • 1 hour±0.0 ppunchanged over 1 hourfrom 0.2% at
  • 24 hours±0.0 ppunchanged over 24 hoursfrom 0.2% at
  • 7 days±0.1 ppunchanged over 7 daysfrom 0.1% at
  • 30 daysNo baseline this far back

History — last 7 days

Probability over the last 7 days: 168 readings from 09-09 14:22 to 09-16 13:21 UTC. Starts at 0.1%, ends at 0.2%, ranging between 0.1% and 0.2%. 167 gaps where the source reported nothing, joined by a straight line rather than measured.0%25%50%75%100%09-0909-1109-1309-1409-16
Probability, 0–100 %. Times UTC. Where the source reported nothing, the two readings either side are joined by a straight line rather than measured.

Volatility

How much the probability has been moving, in probability units per √hour. Scaled by elapsed time, so a source polled often and one polled rarely produce comparable figures.

  • 1 hourNot enough readings1 increment
  • 24 hours0.000024 increments
  • 7 days0.0001168 increments
  • 30 days0.0001325 increments

Confidence and coverage

Confidence describes how well supported the number is and never how large it is.

High confidence0.82
1 sourceForecast markets1

Manipulation risk: low. Method version 1.0.0.

How this is calculated
Source
PolymarketForecast marketsPolymarket
Freshness
Up to dateUp to dateRead at 2026-09-16T13:21:11.708Z, calculated at 2026-09-16T13:26:06.330Z.
Participation behind it
$1,753,003 of depth
How easily it could be moved
Enough participation that moving this number would take a substantial position.
Method version
1.0.0Stored on this value; it identifies the code that produced it.

Probability 0.00

The source's own most recent published probability for this question, unchanged. Full method for probability

Change over time

How far the probability has moved over each window, in probability points. Full method for change over time

  • 1h±0.0 points unchanged, measured from 0.00 at 2026-09-16T12:21:14.621Z
  • 24h±0.0 points unchanged, measured from 0.00 at 2026-09-15T13:22:03.633Z
  • 7d±0.1 points unchanged, measured from 0.00 at 2026-09-09T13:22:09.024Z
  • 30dNo reading far enough back to measure from — not the same as no movement.

Variability

How much the probability has been moving about within each window. Full method for variability

  • 1hOnly 1 change in this window — too few to estimate from.
  • 24h0.000 probability units per √hour, from 24 changes
  • 7d0.000 probability units per √hour, from 168 changes
  • 30d0.000 probability units per √hour, from 325 changes

Confidence 0.82 — High

How well supported this source's number is — never how large, how recent, or how interesting the number is. Full method for confidence

  • Participation behind the contract1.00, carrying 40% of the score
  • Age of the newest reading0.97, carrying 30% of the score
  • Distance between the quoted sides0.99, carrying 20% of the score
  • Time until the question settles0.15, carrying 10% of the score

Coverage

Which sources stand behind a number, and which do not. Full method for coverage

  • This figure comes from Polymarket alone. Future Index does not combine forecasts from different sources into one number — why.
  • The source states no language or geographic scope for this question, so none is claimed here.

What was reported

Occurrences on the topics this contract is linked to. Each entry is one occurrence, however many outlets carried it.

  1. The Prime Minister spoke to the President of the United States, Donald Trump, this afternoon.

    1 independent origin · medium confidence

    Reports

    Contains public sector information licensed under the Open Government Licence v3.0.

  2. Entertainment over policy?

    1 independent origin · low confidence

    Reports

    Al Jazeera English

  3. Army Secretary Dan Driscoll is stepping down, White House says

    1 independent origin · low confidence

    Reports

    NPR

7 further occurrences on this page — show them
  1. White House construction on $400m ballroom can go on, says US Supreme Court

    1 independent origin · low confidence

    Reports

    Al Jazeera English

  2. Ex-White House teleprompter operator ordered to pay $172,000 for Trump speech bets

    1 independent origin · low confidence

    Reports

    BBC News

  3. US President Trump signs order renaming Lake Ontario to ‘Lake America’

    1 independent origin · low confidence

    Reports

    Al Jazeera English

  4. Trump declares economic warfare on Iran.

    1 independent origin · low confidence

    Reports

    NPR

  5. Bangladesh holds presidential election in first contested vote in 35 years

    1 independent origin · low confidence

    Reports

    Al Jazeera English

  6. Nigeria: Campaign kicks off for 2027 presidential election

    1 independent origin · low confidence

    Reports

    Deutsche Welle

  7. Sacked Ukrainian defence minister calls for presidential election

    1 independent origin · low confidence

    Reports

    BBC News

Resolution

Settlement rules: Not available.

Source

  • SourcePolymarket
  • KindForecast markets
  • Contract id0x939eeb2dea216749bd409bedde483c3f2bfb0e24d4f2d34461c0b21c6e91f010

Polymarket

This source's terms require a link back to the contract. Future Index does not yet store one, so the identifier above is shown instead.

Topics

  • us-presidency

Last observed . Page built .