The release of full recordings from Sen. Bernie Sanders’s “Get Out the Vote” rally in Duluth, Minn., on Saturday has triggered a near-complete resolution in related prediction markets, with contracts on the mention of "Immigrant / Immigration" surging 76 percentage points to 99%. The sharp, binary repricing across 21 contracts on the Kalshi exchange indicates that traders have parsed definitive evidence from the speech, ending pre-event speculation and locking in prices at near-certainty for topics that were mentioned and those that were not.
The October 24 rally, held at Lincoln Park Middle School in support of U.S. Senate candidate Peggy Flanagan and Attorney General Keith Ellison, generated significant market activity as its content became verifiable on Sunday, October 25. The repricing was decisive: 13 contracts, including "Immigration," "China," and "Trillionaire," jumped to 99%, while others, such as "Social Security" and "Midterm," collapsed to just 1%, reflecting their omission from the speech.
Distribution Analysis
The market, which allows for multiple topics to be mentioned, saw a clear divergence as uncertainty was eliminated. Contracts for topics confirmed in the speech recording rallied to near 100%, while those for unmentioned topics fell to almost zero.
| Outcome | Current Prob | Change | Volume |
|---|---|---|---|
| Immigrant / Immigration | 99% | +76.0pp | 2,165 |
| China / Chinese | 99% | +49.0pp | 1,403 |
| Robot / Robotic / Robotics | 99% | +46.0pp | 1,205 |
| Trillionaire | 99% | +34.0pp | 2,499 |
| Trump (5+ times) | 99% | +31.0pp | 2,922 |
| Billionaire (5+ times) | 99% | +29.0pp | 5,809 |
| Climate | 99% | +25.0pp | 1,362 |
| Iran / Iranian | 99% | +19.0pp | 950 |
| Israel / Netanyahu | 99% | +18.0pp | 1,790 |
| AI / Artificial Intelligence | 99% | +14.0pp | 802 |
| Corrupt / Corruption | 99% | +13.0pp | 901 |
| Housing / Rent | 99% | +11.0pp | 729 |
| Oil / Gas / Gasoline | 99% | +9.0pp | 840 |
| Student Loan / Student Debt | 1% | ~0pp | 1,878 |
| Event does not qualify | 1% | ~0pp | 417 |
| ChatGPT / OpenAI | 1% | -1.0pp | 13,759 |
| Zohran / Mamdani | 1% | -17.0pp | 1,141 |
| Socialist / Socialism | 1% | -25.0pp | 2,151 |
| Data Center | 1% | -50.0pp | 14,449 |
| Midterm | 1% | -68.0pp | 13,065 |
| Social Security | 1% | -73.0pp | 2,905 |
Net: 13 of 21 contracts rose to near-certainty while 6 collapsed, as the release of rally footage provided definitive evidence for traders.
What's Driving the Shift
The market's dramatic re-alignment was driven by the transition from speculation to certainty.
- Definitive Evidence Emerges: The primary driver was the availability of a full, verifiable recording of the speech Sanders delivered Saturday night. Prior to the event, odds were based on Sanders's known political platform and the context of the rally. Once the full transcript and video became available, traders could simply check whether each keyword was mentioned, removing any need for probabilistic forecasting.
- Binary Resolution: The resulting price action was binary. The "Immigrant / Immigration" contract, which traded at just 23% before the speech, experienced the largest jump (+76.0pp) as its inclusion was confirmed. Conversely, the contract for "Social Security," once priced at 74%, saw the steepest decline (-73.0pp) upon confirmation of its absence. This pattern repeated across the board, pushing all but two active contracts to either 99% or 1%.
- High-Volume Sell-Off: Trading volume was heavily concentrated in the contracts that collapsed. The six primary declining contracts saw a combined volume of over 47,000, nearly double the 23,000 traded across the 13 rising contracts. This suggests a rush to exit losing positions, as traders holding "Yes" on topics like "Data Center" (14,449 volume) and "Midterm" (13,065 volume) sold off their holdings in response to the definitive evidence.
Market Context
This "mention" market is a common type for political events, designed to resolve based on the confirmed text of a speech. Before the rally, which was part of a tour to support progressive candidates, uncertainty was high, with most contracts trading between 20% and 50%. The post-event convergence toward 1% or 99% is a typical and expected resolution pattern for event contracts once the outcome becomes knowable.
While initial news reports summarized key themes like opposition to the Trump administration and economic inequality, prediction market traders appear to have relied on more comprehensive recordings to settle bets on the specific keywords tracked by the contracts.
What to Watch
The market is scheduled to officially close on November 7, 2026. While trading activity implies the event is fully resolved, final settlement will occur after the exchange formally verifies the speech content against the designated settlement sources. Barring any disputes over the source material, the current 99% and 1% prices are expected to hold through settlement.