Ricketts election wager draws scrutiny over timing before poll release
Researchers said a Polymarket user bet about 191,000 dollars on October 31 that Nebraska Senator Pete Ricketts would win re-election, about an hour before a Times/Siena poll showed him leading, and cleared more than 77,000 dollars. Polymarket said it spotted the trades and opened an internal investigation, while Kalshi did not respond to the report.
Vanderbilt researchers flagged betting activity on Polymarket and Kalshi ahead of Times/Siena poll releases, according to Startup Fortune. The report was published Nov 7, 2026 · 7:15 PM ET.
A large wager before polling news
Researchers said a Polymarket user placed about 191,000 dollars on October 31 on Nebraska Senator Pete Ricketts winning re-election.
The wager came about an hour before a Times/Siena poll showed Ricketts leading, according to Startup Fortune. Researchers said the user cleared more than 77,000 dollars.
Platforms’ responses
Polymarket said it had detected the trades and launched an internal investigation. Kalshi did not respond to the report, according to Startup Fortune. The supplied summary does not describe individual Kalshi trades or provide an investigation outcome.
What it means for prediction markets
- The timing and size of the Ricketts wager raise questions about whether market participants had unequal access to polling information. They do not, by themselves, establish misuse of nonpublic information.
- Polymarket’s investigation is the next development to watch. Its acknowledgment confirms scrutiny of the trades, not a finding of wrongdoing.
- Kalshi’s lack of a response leaves its position unclear; it does not establish whether the platform identified or investigated suspicious activity.
Sources & attribution
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